Electric flying car completes public exhibition flight
CategoriesSustainable News

Electric flying car completes public exhibition flight

Spotted: Flying cars are becoming a reality. China’s XPENG mobility technology experts recently completed a public flight of the electric flying car XPENG X2 at an event at the Dubai World Trade Centre. The zero-emission vehicle is a two-seater car that uses vertical lift-off and landing to transition from road travel to air. Designed specifically for the complexities of urban driving, the X2 flies at low altitude and can be driven manually or autonomously.

XPILOT is the company’s advanced driver assistance system. It provides guided options specifically for city or highway driving, including intelligent cruise, on- and off-ramp assistance, and speed limit adjustments. The car is made from carbon fibre in order to reduce the weight for flying.

In the future, the XPENG X2 will be suitable for low-altitude city flights, particularly over short distances. Medical transportation and sightseeing are therefore two promising potential applications for the technology.

Supported in its exhibition flight by the Dubai Civil Aviation Authority, the success of the recent trip shines a light on the need for regulatory bodies to keep pace with technological developments. Cities will need to build new air travel codes for high volumes of low-altitude flights.

Other types of autonomous travel that Springwise has spotted include last-mile delivery robots and marine research observation drones.  

Written By: Keely Khoury

Reference

Brick Passivhaus by McLean Quinlan
CategoriesSustainable News

Ten energy-saving homes that meet Passivhaus standards

As the cost of gas and electricity soars globally, we take a look at 10 highly-insulated Passivhaus homes that are designed to minimise energy consumption.

Passivhaus is an internationally recognised energy-performance standard that originated in Germany in the 1990s. It certifies low-energy buildings with high levels of insulation and airtightness.

Buildings of this kind often make use of triple glazing, solar heat gain and energy recovery ventilation systems. This means they can maintain an almost constant temperature, requiring little energy for heating and avoiding high energy bills.

In 2019, London studio Mikhail Riches and architect Cathy Hawley won the Stirling Prize for a social housing scheme in Norwich that helps tackle fuel poverty by meeting Passivhaus standards. At the time, sustainable architecture studio Architype said the win “puts Passivhaus in the spotlight – exactly where it needs to stay”.

Read on for 10 examples of Passivhaus homes:


Brick Passivhaus by McLean Quinlan
Photo is by Jim Stephenson

Devon Passivhaus, UK, by McLean Quinlan

A linear red-brick wall distinguishes this low-rise Passivhaus home, which was designed by McLean Quinlan within a sloped walled garden in Devon.

It features substantial amounts of insulation and triple-glazing, as well as air source heat pumps, a heat recovery system, solar panels and battery storage that provide over 100 per cent of the required energy for the home.

Find out more about Devon Passivhaus ›


White exterior of Saltbox Passive House
Photo is by Raphaël Thibodeau

Saltbox Passive House, Canada, by L’Abri

The vernacular architecture of Quebec informed the appearance of the Saltbox Passive House, which is the third house in the Canadian city to obtain Passivhaus certification.

It was designed by L’Abri to align with the standards of PHIUS, which is the largest Passivhaus certification system in North America. The studio also made use of wood siding and cellulose insulation to help lower the building’s embodied carbon.

Find out more about Saltbox Passive House ›


stained cedar-clad house in Utah
Photo is by Cityhome Collective and Kerri Fukui

TreeHaus, USA, by Chris Price

Architect Chris Price staggered a series of stained cedar-clad volumes down a slope in a Utah forest to create this Passivhaus residence for his own family.

The dwelling, aptly named TreeHaus, has a highly efficient envelope to ensure it stays warm during cold winter months when snowfall is frequent. Surrounding bedrock also helps to maintain warmth.

Find out more about TreeHaus ›


House clad in recycled spruce
Photo is by Adrià Goula

Casa GG, Spain, by Alventosa Morell Arquitectes

Casa GG is a prefabricated Passivhaus home near Barcelona that is covered in recycled spruce wood sourced from the surrounding landscape. It was built in just four months.

The home is divided into six modules, which Alventosa Morell Arquitectes aligned with the sun path to maximise solar heat gain. Its low-energy envelope means that it can be heated using a single radiator in colder seasons.

Find out more about Casa GG ›


Passivhaus home by Robert Arlt and Charles MacBride
Photo is by Vondelinde

PH01:BRK, USA, by Robert Arlt and Charles MacBride

This low-energy dwelling in South Dakota was created by architects Robert Arlt and Charles MacBride with a group of local architecture students to draw attention to the possibilities of sustainable construction.

According to the team, the PH01:BRK house is the first in the area to produce more energy than it consumes thanks to its energy-saving envelope and technologies including photovoltaic panels and a ventilation system that heats fresh air with the stale air leaving the house.

Find out more about PH01:BRK ›


Zinc-clad house by Paul Archer Design
Photo is by Andy Stagg

Day House, UK, by Paul Archer Design

This zinc-clad mews house was designed by Paul Archer Design to replace a poorly insulated and leaky 1970s house in London.

The four-storey building, which looks like a two-storey home from the front, is super-insulated and complete with a heat recovery ventilation system that retains warmth to ensure it performs to Passivhaus standards.

Find out more about Day House ›


Old Water Tower home by Gresford Architects
Photo is by Quintin Lake

Old Water Tower, UK, by Gresford Architects

Located on the outskirts of a village in Berkshire, the barn-like Old Water Tower is a self-sufficient home designed and owned by Gresford Architects’ founder Tom Gresford.

Among its features are triple-glazed windows and external blinds that automatically close on the east, south and west elevations in hot weather to prevent overheating. The studio said its Passivhaus energy performance means it “costs virtually nothing to run”.

Find out more about Old Water Tower ›


cantilevered house in Spain
Photo is by Adrià Goula

Casa LLP, Spain, by Alventosa Morell Arquitectes

Another Passivhaus project by Alventosa Morell Arquitectes is this cantilevered residence that overlooks a mountain range near Barcelona.

Passive solar gain and highly insulated walls help keep the home warm and contribute to the building’s low energy consumption. Its space heating requirement is 9 kilowatt-hours per square metre – exceeding the level required to receive Passivhaus certification from the UK’s Passive House Organisation.

Find out more about Casa LLP ›


Wood-clad Forest Lodge by Pad Studio
Photo is by Nigel Rigden

Forest Lodge, UK, by Pad Studio

This low-energy prefabricated home in the New Forest was designed by Pad Studio to meet stringent planning regulations in the area, which aim to prevent damage to the site.

It performs to Passivhaus standards but is also largely self-sufficient, making use of rooftop solar panels, an air-source heat pump and on-site sewage treatment facilities.

Find out more about Forest Lodge ›


Student-designed Passivhaus in Kansas
Photo is by Studio 804

New York Street Passive House, USA, by Studio 804

Students in a design-and-build programme at the University of Kansas designed this house to offer “an example of the way housing can be done more responsibly in the future”.

The rectangular building is orientated to make use of passive solar gain and lined with insulation that performs nearly three times the minimum required by city code. It also makes use of eco-friendly materials and technologies including photovoltaic panels and an energy-recovery ventilator.

Find out more about New York Street Passive House ›

Reference

Five space-based innovations - Springwise
CategoriesSustainable News

Five space-based innovations – Springwise

World Space Week is a United Nations-endorsed celebration of the contribution of space science and technology to the betterment of the human condition. Held between the 4th and 10th October, the theme in 2022 was ‘Space and Sustainability’. This looked at the issue from two perspectives. The first is the sustainability of space – particularly how we use the orbital area around our planet. The second is sustainability from space – how space-based technology can contribute to sustainability on earth.

Space has long been associated with large publicly funded organisations such as NASA. But, increasingly, innovators of all shapes and sizes are entering the field – and it’s not just SpaceX or Virgin Galactic. Discover five space-based innovations that are having a positive impact on this planet and beyond.

Photo source Pixabay

RESEARCHERS COMPLETE ON-THE-GROUND TESTS OF SPACE POWER STATION TECHNOLOGIES

A complete system of space solar power technologies has passed testing by researchers from China’s Xidian University. The scientists proved the concept of converting solar power captured in space to electricity and then wirelessly transmitting the power as microwaves. Once received by a station, the microwaves are re-converted back to electricity and added to the local power grid. The full-system test, which was conducted on the ground, successfully transmitted renewable energy across 55 metres and proved the effectiveness of many of the components of the mechanical design. Read more

Photo source Maana Electric

A SOLAR PANEL FACTORY DESIGNED FOR EARTH AND BEYOND

With current technology, it would take a minimum of 260 days to reach Mars. That is a long way to go – and given the cost of transportation, humans who plan to colonise the Red Planet must be able to fabricate a lot of what they need on-site. One thing colonists are going to need is energy, and startup Maana Electric is working on a system to deliver it. The company has developed an automated factory that produces solar panels out of sand – and which could also see a lot of use here on earth. Read more

Photo source Space Forge

ROBOT FACTORIES TO MANUFACTURE MATERIALS IN SPACE

For decades now, astronauts and scientists have been conducting experiments in space. These have demonstrated that a number of materials, such as ZBLAN fibre optics, are of much higher quality when produced in ‘microgravity’ – a term to describe the very low levels of gravity experienced in an orbiting spacecraft. Now, space tech startup Space Forge has raised funding to deploy satellites for manufacturing materials such as new alloys, medicines, and semiconductors in orbit. Read more

 Photo source Wyvern

SATELLITE IMAGERY HELPS FARMERS USE FEWER CHEMICALS

Canadian space data company Wyvern has recently received government funding to complete the launch of the company’s DragonEye satellite. Dedicated to improving environmental health by harnessing the power of satellite imagery, the company is working to complete the first use of its unfolding space cameras. DragonEye satellites use hyperspectral imaging to provide users with unparalleled detail in near-to-real time. Read more

Photo source Nasa on Unsplash

SPACE DEBRIS TRACKING SYSTEM HELPS PREVENT COLLISIONS

Historically, the race to space has focused on getting teams and countries into orbit, with far fewer resources dedicated to cleaning up after missions. Just as climate change was ignored by many for decades, so too was debris in space. With space traffic growing rapidly, there is now a growing need for the development of another aspect of exploration – tracking the rubbish left behind in order to prevent dangerous collisions. Portugal’s Neuraspace, part of the European Space Agency’s Business Incubator programme, recently raised €2.5 million to bring its intelligent monitoring platform to market. The AI-based platform analyses millions of historical flight paths to identify high-risk areas. Read more

Curated by: Matthew Hempstead

To keep up with the latest sustainable innovations, sign up to our free newsletters or email info@springwise.com to get in touch.

Reference

Rainwater in pond
CategoriesSustainable News

Farmland informs design of school building by Eskew Dumez Ripple

American studio Eskew Dumez Ripple has used features of vernacular architecture in creative ways to form a sustainable, multipurpose school building.

The Home Building is part of the Thaden School, a private school in Bentonville, Arkansas, that serves students in grades six to 12.

Rainwater in pond
Rainwater is collected and stored in a pond, or “water lab”, at the Thaden School. Photo is by Tim Hursley

With a focus on learning by doing, students engage in activities such as filmmaking, constructing bicycles, and growing and preparing food.

The school is backed by the Walton Family Foundation, which is led by the founders of the retail giant Walmart.

The school’s 26-acre (10-hectare) campus was master-planned by Eskew Dumez Ripple – a studio based in New Orleans, Louisiana – in collaboration with local firm Marlon Blackwell Architects, landscape architects Andropogon and engineering firm CMTA.

School building in Arkansas
The team took cues from the area’s pastoral heritage for the architecture. Photo is by Dero Sanford

Eskew Dumez Ripple was tasked with designing the Home Building – a 34,000-square-foot (3,159-square-metre) facility that holds a dining hall, teaching kitchen, bookstore, library and lounge/study spaces.

“The Home Building serves as both the social and spiritual center for students,” the architects said.

Eskew Dumez Ripple study room
Eskew Dumez Ripple added a study room to the project. Photo is by Dero Sanford

While designing the facility, the team took cues from the area’s pastoral heritage, including its vernacular architecture.

“The design reconciles seemingly contradictory notion: lofty ambitions for the building’s design with the humble nature of local, vernacular architecture,” the firm said.

Gabled slatted canopy
A gabled, slatted canopy made of poplar wood features in the dining room. Photo is by Tim Hursley

Zigzag in plan, the wood-framed building stretches across the site, bending at several points to create porches and courtyards.

Facades are clad in shiplap cedar siding and board-and-batten siding made of white, fibre-cement Hardie panels. 

Cedar siding
Facades are clad in shiplap cedar siding. Photo is by Tim Hursley

The building’s different parts are topped with either single-slope or gabled roofs, all of which are covered with standing seam metal.

Within the building, the team used basic finishes such as concrete flooring and white-painted sheetrock, and incorporated special accents like custom millwork in the study hall and a live-edge wooden table in the teaching kitchen.

Eskew Dumez Ripple interior space
Eskew Dumez Ripple used basic finishes within the facility. Photo is by Dero Sanford

At the heart of the facility is the dining room, which rises to 38 feet (12 metres) at its highest point and features a glazed wall. Hung from large, exposed trusses is a gabled, slatted canopy made of poplar wood.

“The design employs common materials and methods in uncommon ways,” the team said.

The building has a number of sustainable features, including low-flow plumbing fixtures, a geothermal well and an energy recovery wheel.

Rainwater is collected and stored in a pond, or “water lab”, that serves as a teaching tool for students. The landscape is filled with native species like prairie grass and pecan trees.

The building has a number of sustainable features. Photo is by Tim Hursley

“Sustainability is placed at the forefront of the students’ education, and the landscape functions as a botanical textbook rife with plants that represent a microcosm of the region’s native species,” the team said.

With plans to install a photovoltaic array in the future, the building is designed to achieve an Energy Use Intensity score of 23. A score of 25 or less for a school building indicates that the building is “zero energy ready”, according to the architects.

Thaden School building
Thaden School building is located in Arkansas. Photo is by Dero Sanford

The Home Building at Thaden School was a recipient of the 2022 AIA Architecture Awards.

Other projects there include the Crystal Bridges Museum of Art, designed by Sadie Architects, and a co-working, dining and recreational venue by Brand Bureau and Modus Studio that is located within a former industrial building.

The photography is by Tim Hursley and Dero Sanford.


Project credits:

Architect: Eskew Dumez Ripple
Landscape architect: Andropogon Associates
Civil engineering: Ecological Design Group
MEP engineering: CMTA Consulting Engineers
Structural engineering: Engineering Consultants
Project management: Aegis Property Group | WEI
General contractor: Milestone
Irrigation: Aqueous
Signage and wayfinding: Tom Zetek

Reference

Modular sewage treatment plant fits inside a trailer
CategoriesSustainable News

Modular sewage treatment plant fits inside a trailer

Spotted: An incredibly densely populated country, India’s struggles to access and maintain clean waterways and sanitation infrastructure is well documented. UNESCO says that lack of sanitation is part of the global water quality challenge and “one of the most significant forms of water pollution.”

Israeli company Huliot has a solution specifically for densely populated communities. A modular sewage treatment plant called ClearBlack can clean water for up to 800 people per day per unit. The plants are available in three sizes, ranging from 25 to 100 cubic metres of water cleaned per day. Based on a compact design centred around a Membrane Bio Reactor (MBR) rather than activated charcoal or sand filters, the mobile treatment plants are quiet to run, do not produce a smell, and are automatically and remotely managed.

The system requires only electricity to run, no additional piping, and costs around 15 cents per day. With almost 100 per cent of the water that is cleaned able to be used again, the system is incredibly efficient and could cut local water costs and volume of use by up to 40 per cent.

As water scarcity continues to grow globally, solutions such as Huliot’s have the potential to significantly improve urban living conditions. Springwise has previously spotted innovations taking inspiration from nature, with apples being used to remove nanoplastics and algae providing a chemical-free cleaning process.  

Written By: Keely Khoury

Reference

Airport expansion
CategoriesSustainable News

Miller Hull Partnership and Woods Bagot design timber airport expansion

Architecture offices Miller Hull Partnership and Woods Bagot have revealed plans for an extension of Seattle-Tacoma International Airport.

Miller Hull Partnership and Woods Bagot will work with the Port of Seattle to carry out the 145,528 square-foot (13,520-square-metre) expansion of the airport’s C Concourse.

A sculptural pillar and a grand staircase clad in locally sourced Douglas fir will be at the centre of the C Concourse Expansion. The pillar will feature carved decorative geometric shapes.

According to the architecture studios involved, the airport’s grand staircase will be the focal point of the extension, with a design that takes materials and forms of the Pacific Northwest.

Airport expansion
The project will expand Seattle-Tacoma International Airport

“The concourse’s interior will be an interplay of environments that is defined by both the local energy and a connection to the natural landscape,” explained Miller Hull and Woods Bagot.

Four additional storeys above the airport’s existing concourse will provide travellers with a range of amenities.

These additional floors will include dining and retail spaces, as well as interfaith prayer and meditation rooms, a nursing suite and a 20,000-square-foot (1,858-square-metre) lounge for Alaska Airlines.

Due to the expansion’s height,  views of the airfield and the surrounding Olympic Mountains will be expanded.

Douglas fir pillar
A staircase and pillar clad in local Douglas fir will be at the centre of the expansion

A “marketplace” modelled on the Seattle farmers’ markets will be located in the middle of the concourse. It will include a bar, various retail kiosks and an area for musicians that will face the grand staircase.

The C Concourse Expansion’s timber elements have been designed as part of Port of Seattle’s Sustainable Project Framework, which pledges to commit to more sustainable infrastructure.

The expansion will also include rooftop photovoltaic panels and electrochromic window glazing.

According to Miller Hull and Woods Bagot, the expansion will also feature fossil-fuel-free systems for heating and hot water, as well as dishwashing facilities for vendors that will intend to reduce the demand for disposal dishes and low-flow water fixtures.

The architecture firms said that embodied carbon reduction strategies and biophilic design principles will also define the expansion.

Initial construction is slated to begin this summer, with major work due to commence in mid-2023. The expansion is expected to be completed in 2027.

Miller Hull Partnership was founded in 1977 while Woods Bagot was established in 1869. The firms have individually designed many architecture projects including a net-positive building for an Atlanta university and another university building with a fluted concrete tower respectively.

The renderings are courtesy of Woods Bagot and Miller Hull Partnership.

Reference

Act Now: List or Update Your Home in the Inventory of Zero Homes
CategoriesSustainable News Zero Energy Homes

Act Now: List or Update Your Home in the Inventory of Zero Homes

Did you know that as of the end of 2020, there were more than 17,000 zero energy housing units in North America? That’s a 26% increase over the previous year. Many more are in the pipeline for 2021. Other interesting facts: 75% of zero energy residences in North America are multifamily, and London, Ontario, Canada has more zero energy residences than any city in North America. This is the kind of information you can access from Team Zero’s Inventory of Zero Energy Homes

The Inventory of Zero Energy Homes provides a crucial metric to demonstrate the growth and viability of the zero energy movement. If you have designed, built, or purchased a zero energy home, be sure it is listed in the Inventory.  Because there are now new inventory data fields where you can provide more useful information on your home, if you already listed a home, please update your listing. You can add or update your listing here.

But act fast. Team Zero, EEBA, and the Zero Energy Project encourage builders, designers, and homeowners to submit new zero energy homes and update previously listed ones soon — so they’ll appear in the 2021 Inventory of Zero Homes report. 

The Inventory covers many categories: homes currently under construction, those in the design phase, and completed homes — whether they’re zero energy, positive energy/net producer homes, zero energy ready or passive homes. The 2021 Zero Home Inventory report will help build momentum for zero homes. Stand up and be counted by listing or updating your zero home in the Inventory now!

 

Reference

A platform helps companies track ESG, CSR, and sustainability in one place 
CategoriesSustainable News

A platform helps companies track ESG, CSR, and sustainability in one place 

Spotted: With research showing that corporate social responsibility (CSR) initiatives are frequently withdrawn during times of economic uncertainty, the full picture of the fallout from the COVID-19 pandemic is still developing. Many environmental advocates hoped that the sudden drop in global emissions would become the new norm, but the opposite happened. The International Energy Agency (IEA) reports that global emissions rebounded to their highest level in history in 2021. Part of that was a rebound in airline travel and a steep increase in transport by car.  

In light of the corporate struggle to do what is best for the planet, Spanish software company APlanet created a single, customisable dashboard for companies to track their environmental, social and governance (ESG) measures in one place. Whatever a business is doing to protect the global health of the planet, and wherever that occurs in the supply chain, the APlanet platform tracks it.

A company sets up the categories that it wants to track, which can include global standards as well as internal, local, or regional measures. APlanet helps identify data inputs and builds a bespoke dashboard. Companies can assign owners to different data sets and, when needed, easily create holistic performance reports for the entire organisation.

The detailed analysis provided by APlanet helps operational managers track efficiencies and a range of measures across multiple locations, including gender equality, emissions, energy usage, recycling, water usage and more.

CSR and ESG are important to consumers, with much brand loyalty pegged to a company’s ethos. As organisations seek ways to bake sustainability into their very foundations, innovators are rising to the challenge with technologies such as a platform that verifies and tracks impact projects and a social media app that raises funding for sustainable brands and causes.  

Written By: Keely Khoury

Reference

Wind farm
CategoriesSustainable News

UK Net Zero Carbon Buildings Standard to verify net-zero carbon buildings

A group of leading industry organisations including the Royal British Institute of Architects have come together to create a building standard that will verify net-zero carbon buildings in the UK.

Named the UK Net Zero Carbon Buildings Standard, the initiative will help the industry to ensure and prove that buildings claiming to be net-zero hold up to that claim.

The launch, announced by the Royal British Institute of Architects (RIBA), responds to confusion over the term net-zero and “a clear demand for a single, agreed methodology”.

It is also hoped to encourage the industry to decarbonise and help the UK to meet its 2035 and 2050 emissions targets.

Standard will “help the entire industry to move forward”

“This is a really exciting and timely initiative that will help the entire industry to move forward in its efforts to reach net-zero carbon,” reflected RIBA president Simon Allford.

“Working together we will address current ambiguities around the much-used term and develop a common understanding, based on clear performance targets, to support all those involved in the procurement, design, construction and operation of buildings.”

Net-zero carbon buildings are designed to eliminate all possible emissions over a building’s lifetime. This takes into account both embodied carbon, which are emissions caused by the construction supply chain, and operational carbon, which are emissions caused by a building’s use.

Any remaining emissions must be offset by removing carbon from the atmosphere.

As the built environment is responsible for around 40 per cent of all greenhouse gas emissions, net-zero carbon architecture could help the UK meet its decarbonisation targets.

The UK Net Zero Carbon Buildings Standard will verify both new and existing buildings, and take into account both their operational and embodied carbon emissions.

The Carbon Trust among supporters

Among the industry bodies backing the initiative are RIBA, the Carbon Trust, the Chartered Institution of Building Services Engineers (CIBSE), the UK Green Building Council (UKGBC) and The Institution of Structural Engineers (IStructE).

The Better Buildings Partnership (BBP), Building Research Establishment (BRE), London Energy Transformation Initiative (LETI) and Royal Institution of Chartered Surveyors (RICS) are also in the steering group.

“We look forward to contributing to the development of this highly impactful standard, which will be instrumental in guiding the UK real estate industry, the construction sector and the wider built environment, in the rapid and urgent transition towards net-zero,” reflected the Carbon Trust’s director Dominic Burbridge.

“Addressing the energy demand of the built environment and the associated emissions is a key driver in accelerating the move to a sustainable, decarbonised future and we are excited to be supporting such an important and pioneering initiative.”

Delivery will require “radical collaboration”

According to the RIBA, the standard will be accessible to everyone and “anyone who wants to fund, procure, design, specify, or occupy a net-zero carbon building and anyone wanting to demonstrate that their building is net zero-aligned with an industry-agreed standard”.

The steering group is now looking for support from other industry figures and stakeholders to deliver the standard.

“A UK Net Zero Carbon Buildings Standard will be critical for asset owners and managers to evidence that their buildings are built and operating in line with climate science,” concluded Sarah Ratcliffe, the CEO of steering-group member BBP.

“An industry-wide standard will enable stakeholders including investors and occupiers to differentiate between assets that are net-zero and those that are not,” she continued. “It will take radical collaboration to deliver this project.”

Architecture is “one of the least well-represented businesses” in the UN initiative to get companies to commit to net-zero emissions by 2050, according to UN climate champion Nigel Topping.

In 2019, RIBA launched a voluntary challenge to help architects create net-zero carbon buildings. However, less than six per cent of UK studios have signed up.

The main image is of the carbon-negative Paradise office by Feilden Clegg Bradley Studios.

Reference

Go Small, Live Well - Zero Energy Project
CategoriesSustainable News Zero Energy Homes

Go Small, Live Well – Zero Energy Project

Hopefully, this period of human existence will be known for the rapid and effective response to the existential crisis of climate change. Either that, or human culture will descend into a Mad Max scramble for survival. Either way, homes will be changing. Perhaps the most noticeable change will be the shrinking of living space. The median square footage of a new home sold in the US in 2020 was 2,333 square feet, and many “luxury” homes range from over-sized to gargantuan. Fortunately, there is a counter trend of modest-sized houses that are more affordable and fit better on small urban lots. And that counter trend has deep roots. In the late 1940s, the average new home was just 750 square feet. In the 1950s, it increased to 950 square feet, 1,100 square feet in the 1960s and 1,350 sf in the 1970s. In fact, most of us at an age to purchase a home were raised in houses that are much smaller than those we see on the market today. 

 

Small homes have smaller carbon footprints. They consume fewer building materials, need smaller equipment, cost less, and require less energy to operate. Even better, they require less time and effort for cleaning and maintenance. You may think that less living space means sacrifice, but a well-designed home can live big in fewer square feet. 

 

The right size home is the smallest that will work for your current needs. Many homebuyers fall into the trap of buying for “resale.” They buy rooms and features that they don’t really want or need, because they may believe the market demands these features. If it was ever true, it’s now a myth perpetuated by some real estate brokers. There’s a need to educate today’s homebuyers to see through the myth that “bigger is better.” In fact, as the housing market changes, it’s likely that large homes with empty bedrooms and high energy bills may not compete well in the market as smart buyers migrate to small, energy-efficient homes with lower operating costs. And today’s homebuyers will want to be in the vanguard of this trend, not the tail end. 

 

Everyone is different and has different needs, but here are some basic size considerations: 

  • Single person or couple: 600-1,000 sq. ft.
  • 3 to 4 person family: 1,200 – 1,600 sq. ft. 
  • Larger families 1,800 to 2,000 sq. ft. 

 

Good design can deliver comfort, utility, and a feeling of spaciousness in a smaller space. The deciding factor should be that homes fit the owner’s current needs and known needs for the future in the smallest possible footprint. 

 

Follow the principles of smart, small home design 

 

Keep it simple. Architectural complexity increases cost and complicates insulation and air sealing details. This doesn’t mean that we need to live in cubes. However, when you add corners beyond the usual four, make sure the benefit outweighs the costs. Think of the home’s footprint as two or more connected rectangles — small ones. 

Invite natural light. Careful selection, sizing, and location of windows can flood a small space with natural light, making it look larger without increasing energy use. Windows with higher sill heights limit total window area while preserving views, and light — providing ample space to place furniture against the wall below the windows. 

Share light between rooms. Indoor windows, glass block partition walls, full- or half-lite glazed doors, and transoms allow light from a brighter space into an adjacent area that has less natural light. Operable transoms also allow better air circulation in small homes that use ductless heating and cooling systems. 

Open floor plans. Most modern layouts connect cooking, eating, and living spaces in a more open pattern. This makes each individual space feel larger and allows for long interior views and good air circulation. 

High ceilings. Smaller rooms need not feel cramped. High ceilings (nine or ten feet) add an airy feeling and visual interest. Consider well insulated cathedral ceilings, which create more interior volume. Some of this volume can contain usable space, such as lofts, mechanical rooms, or heated storage. Even if it’s not directly functional, high ceilings bring visual appeal to smaller rooms. 

Reduce circulation paths. Shorten or eliminate hallways, unless they serve a dual purpose. Traffic patterns can flow around the perimeter of rooms with open floor plans adding to the perception of spaciousness.

Eliminate formal spaces. Formal living and dining rooms are seldom used. Most people gather in kitchens, family rooms, or outdoor spaces. Avoid showcase rooms that are rarely used.

Create soft separations. Distinguish between functional spaces without building walls. Divide large rooms with “soft” visual cues, such as differing floor finishes, wall colors, moveable partitions, hanging plants, or furniture arrangements that differentiate the spaces. Or you can tie spaces together visually using similar materials, such as flooring, wall coverings, and trim, giving the overall impression of greater space.

Multi-use spaces. Every space in the home should serve more than one function. A home office and guest bedroom is a common combination. A hall or stairway can be used as a library or gallery, a landing can be a reading nook, the mudroom or bathroom can be a laundry. Install built-ins for exercise equipment and media, rather than using separate rooms — or include an exercise nook in the garage.

Build in furniture. Cabinets, bookcases, benches, work desks, and eating nooks use less space when they become part of the structure. Recess bookcases or display cases into interior walls. 

Create privacy. Everyone needs a place to spend a bit of quality time alone. This can be difficult in a small house, so create a private space. It could be a cozy window seat, a secluded loft, or a comfy chair in a solitary corner. 

Laundry in a closet. The washer and dryer don’t need privacy. Instead of getting their own room, stack them in a closet or in other space, such as a mudroom, bathroom, or utility closet. Several utilitarian functions, such as laundry, water heating, and ventilation equipment can be located in a mudroom. Add shelves and cupboards for cleaning supplies and linens, and space for hanging clothes to dry. 

Contain the mess. Clutter makes spaces seem smaller. There are countless methods to stay organized. Give the kids their own built-in cubbies in the mudroom to store coats, hats, and other personal gear. Add shelves and cupboards above a mudroom laundry. Add closets under stairs.

Include unheated space. Storage, hobbies, and exercise can tolerate a wide range of temperatures. Expand unconditioned spaces, such as the garage, full basements, or sheds to accommodate these functions at much lower cost per square foot. 

Encourage outside living. Large patios and decks extend the living space during mild weather. 

Bring in the outdoors. Locate windows and glazed doors for optimal views of the outdoors to create a visual extension and bring the outside in. Patio, deck, or courtyard doors extend the living space past the outer walls during fair weather. 

Work-at-home space. Remote workers cherish a quiet place to concentrate. Combine a home office with a complimentary function. A bedroom can be used at night for sleeping and during the day for office work — and these functions can be kept distinct. A Murphy bed will hide away during the day, and desk and work tools can be concealed by a cabinet or a curtain when not in use. 

Provide ample storage. When people want a “bigger house” they may actually need more storage. In small homes, careful planning can provide densely packed, three-dimensional, tightly organized storage — so it does not add square feet. Instead of large walk-in closets and pantries, consider making them open spaces where you can easily access three walls of shelves. If you have a closet door, you can use the back side of the door for hooks, racks, or baskets. Make use of the stairwell walls for hooks or cupboards. Always use the space below a staircase, but be more sophisticated than a simple closet door leading into an oddly shaped room. The shorter regions near the base of the stairs could have large drawers that fully use the space below the bottom steps. 

Stop swinging. Sliding doors use less space than swinging doors. Consider using pocket doors that slide into a wall cavity, a rolling door that hangs on the wall surface, a simple curtain on a rod, or no door at all. Rolling doors don’t seal tightly, which could be a concern for privacy. On the other hand, there is ample airflow around the door for ventilation and space conditioning to penetrate. 

Plan for flexibility. The design should allow for changes in lifestyle. A young couple may have children. Grown children will leave the nest. A business could be born in the kitchen and grow in the guest bedroom. Plan for these changes. Pre-plan a future addition or consider ways new uses could be accommodated inside the existing footprint. The upstairs or basement could become an apartment for an aging relative. 

 

Stock Plans for Small Homes

We may think that building small homes is a new idea, but in the 1950s through the early 1970s the Canada Mortgage and Housing Corporation released a series of small house designs to encourage affordable housing. The concept behind these plans holds up well today, but it needs to be updated to zero energy and contemporary expectations, such as multiple bathrooms. 

 

Some modern designers are also embracing the idea. Here’s a contemporary take on small house plans that can be upgraded with energy-saving features. Zero Energy Plans offers plans for a range of small zero energy homes. Just click on “Plan Filters” and go to the zero energy home size choices to find a suitable match. 

 

If you can’t find the perfect house plan, consider a custom zero energy design that meets your size needs exactly. Seek out zero energy designers and builders who understand the trend towards smaller more energy-efficient homes. With good design and conscientious construction, you may find that a small, custom-built, zero energy house is not only within reach but lives very well! 

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