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SUSTAINABLE.TO  Healthy, energy-efficient architecture​ and design. NOW Magazine's 2016/2017 Readers' Choice 'Best Design Firm'

Find out the environmental cost of everyone’s favourite daily indulgence over on the blog. Written by our architect Steve Socha. Link in bio.

The Daniels Residence is a carefully orchestrated synthesis of resource and energy-efficient additions, heritage restoration, and deep green retrofit to a Toronto Art Deco masterpiece. A symphony of 21st-century sustainability it takes advantage of the existing site orientation to maximize vistas and capture cooling breezes from the adjacent low-lying lands, harnesses passive solar heating and cooling, and exemplifies a variety of creative reuse opportunities that presented themselves in the original structure.

Further sustainable strategies include: rainwater collection for irrigation, highly-effective insulation, a green roof, energy-efficient doors and windows, geo-exchange heating and cooling, multiple optimally-sized heat pumps efficiently zoned throughout the house, solar thermal hot water, sun shading devices, thermal mass concrete floors, hydronic radiant floor heating, and best-possible indoor air quality strategies. ————————————————————— •  Energy Use Intensity: Actual: 171 kWh/m²
•  Reduction in Energy Use from Typical: 38%
•  Alternative Energy: Generation Solar

We’re extremely honoured to have won the 2018 Giving Back Award from HomeStars, alongside 70 other inspiring companies providing charitable services within their own communities. Thanks for the recognition, @homestars and a huge congrats to all the winners!

Explore the benefits of building with natural materials over at Written by our very own Mike Mazurkiewicz. (Link in bio)

Shown here is a contemporary, healthy, energy-efficient new build we recently designed for our clients in Oakville, Canada.

Sustainable features include: high clerestory windows that spill light into the 2-storey central hallway; in-floor radiant heating throughout the house; a highly insulated building shell, and an accessible ground floor, that will meet the family’s needs well into the future.

Located in the former historic Bank of Canada building, the Vault is a modern lounge and event space featuring a variety of meeting rooms, a bar, dining areas, and even a putting green. S.TO performed design, Building Code, fire and life safety analysis, to acquire permits and approvals for this adaptive re-use project.

Happy Friday the 13th from Nero and the rest of the team.

A Leslieville renovation and addition featuring Galvalume corrugated metal siding and roofing, coupled with charred cedar shou-sugi ban.

🐝 Back in 2016, Holt Renfrew asked us to design and build a Bee Hotel for their flagship location at 50 Bloor Street West. As part of Holt Renfrew’s H Project, this design follows their 2015 efforts which raised $100,000 in support of Pollinator Partnership Canada.

Using reclaimed shipping pallets, floor joists from a home renovation, and a stain to match Holt’s signature magenta, this installation provides both the food and shelter for our native pollinators. Neighbouring office towers and residences now enjoy a view down onto a rooftop that provides a refreshing sight from the gravel and mechanical systems that otherwise prevail. A careful selection of wildflowers was chosen to attract pollinators, compliment the signature magenta colour of the structure, and provide a consistent bloom throughout the summer.

Photos by Jenna Marie Wakani (@jmwakani) for Holt Renfrew

We couldn’t be happier that laneway suites are on the horizon in Toronto. Here’s a laneway house we completed back in 2013 with a 50% reduction in typical energy usage. Know anyone interested in building a sustainable laneway home? We’d love to meet ‘em!

🌎 Speaking of sustainability, we’ve teamed up with – Toronto’s first and only soap delivery company offering premium, Canadian-made, environmentally friendly and hypoallergenic, soaps and detergents. They bulk-buy all of their products and conveniently deliver them to you in reusable glass mason jars. How amazing is that?

We’re also proud to support our Canadian friends over at @unscentedco – a Certified B Corporation specializing in unscented home and body care which allows their customers the ability to refill their bottles either at home or in-store. A significant reduction of our collective plastic footprint. (Something we can get down with)

Extremely excited and honoured to be working with the Ontario Secondary School Teacher’s Federation on their new headquarters.
This 100,000 square foot office building will be an ultra-green, healthy and energy-efficient facility. The building will demonstrate OSSTF’s commitment to sustainability by targeting LEEDv4 Platinum certification, WELL Standard Certification and net-zero energy and carbon. Learn more over at
Here’s to a greener TO! Stay tuned for updates.

The final video in our Sustainability 101 lecture series discusses the topic of natural ventilation. For those jumping in now, the Sustainability 101 lecture series was made as a supplemental learning initiative for high school students across Ontario. View the entire lecture series on our YouTube channel. (Link in bio)

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