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Gregory Duncan

@duncanarchitect.bsky.social
2.1K followers 382 following 1.5K posts

Designing comfortable, healthy, energy-efficient buildings Certified Passive House Designer Registered Architect in NY and NJ

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Gregory Duncan @duncanarchitect.bsky.social · 24/09/2026
AI isn’t conscious but it does do stuff very analogous to human thought. I’m building some custom tools to make Passive House design and documentation easier with Revit and Notion.
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Bart⚓️ @bartgonnissen.bsky.social · 23/09/2026
The Facial Expressions of Tethys by artist Julius von Bismarck. A suspended high-sea buoy that moves in real time. Sensors on a twin buoy out in the Atlantic Ocean send live satellite data to motors inside the museum. This makes the indoor buoy copy the exact, real-time movements of the ocean waves.
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Open New York @opennewyork.org · 23/09/2026
🚨 OUR NEW POLL: New Yorkers squeezed by housing costs overwhelmingly back reforms to build more homes across the state. We commissioned Global Strategy Group to survey 600 likely voters. First reported today in @cityandstateny.bsky.social. What we found 🧵
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Gregory Duncan @duncanarchitect.bsky.social · 21/09/2026
This block in Ditmas Park, Brooklyn always reminds me of the time I lived in Hamburg
Brick apartment buildings on a tree-lined street.
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Gregory Duncan @duncanarchitect.bsky.social · 20/09/2026
Seestadt Aspern, the brownfield development of a former airport in Vienna, is seeking proposals for some of the remaining lots
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Juraj Mikurcik @jurajmikurcik.bsky.social · 18/09/2026
A cool solar PV facade and balconies on the 12-storey biobased apartment block in Malmö 🇸🇪 A total of ⚡ 218kWp system paired with 🔋 194kWh battery storage. Makes a lot of sense for low sun winter generation ☀️ via ETC Bygg
Photo of an apartment block being fitted with solar PV panels on facade and balconies
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Gregory Duncan @duncanarchitect.bsky.social · 16/09/2026
A really smart thermostat would realize that its goal isn’t to set the air temperature of a room but to provide thermal comfort to the occupants. Following this goal maniacally it would then solve climate change instead of killing everyone.
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Neon Deutschland @neondeutschland.bsky.social · 16/09/2026
The Neon Alphabet. Day 11: K is for Kuhn.
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Gregory Duncan @duncanarchitect.bsky.social · 14/09/2026
Why not make it an even 80 counties with Suffolk County, Massachusetts and the five boroughs?
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Gregory Duncan @duncanarchitect.bsky.social · 13/09/2026
Apocalyptic looking sunset over the Hudson right now
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Gregory Duncan @duncanarchitect.bsky.social · 13/09/2026
Also, a lot of the pictures of straw houses you see are in cold climates. Long Island doesn’t need as much insulation as Sweden!
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Gregory Duncan @duncanarchitect.bsky.social · 12/09/2026
Saw this project presented at the Regenerative Metropolis Symposium in New York a few years ago. Nice to see it completed! Straw and CLT construction with balcony solar in Malmö, Sweden
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International Passive House Association (iPHA) @ipha.bsky.social · 12/09/2026
The new Passive House Building Database is here, with a smarter, easier-to-use experience for discovering and showcasing Passive House projects from around the world. 👉 Explore the new database and add your project: passivehouse-database.org
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Gregory Duncan @duncanarchitect.bsky.social · 10/09/2026
May be boring, but simplified plumbing could save a lot of money in new construction
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Gregory Duncan @duncanarchitect.bsky.social · 08/09/2026
Can computers think? The question is just as relevant and just as meaningful as the question whether submarines can swim. Dijkstra 1984
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Gregory Duncan @duncanarchitect.bsky.social · 07/09/2026
Bubbles vs Parking ! Bubbledeck is a legit way to reduce the amount of concrete in a floor deck, but this video shows how a bad design apparently caused a catastrophic collapse. Video in German with English subtitles available youtube.com/watch?v=9qTx...
youtube.com
Wie Plastikkugeln ein Parkhaus zerstörten. - Baukatastrophen 14
YouTube video by Rick Rieck
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Jan Rosenow @janrosenow.bsky.social · 06/09/2026
NEW BRIGHT SPOTS: A district heating system in France has run since 1332, still warming 100+ homes from hot springs. The tech is 700 years old. What's changed is what we can plug in: heat from rivers, flooded coal mines, breweries, data centres. janrosenow.substack.com/p/district-h...
janrosenow.substack.com
District heating: the 14th-century technology that keeps solving 21st-century problems
How heat networks can turn rivers, abandoned mines and data centres into sources of low-carbon heat
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Streetsblog NYC @nyc.streetsblog.org · 05/09/2026
Red Hook and the Columbia Street Waterfront could finally get a working bus as the city plans 6,000 more homes for the area.
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City Floats Busway, Parking Maximums to Ease Traffic from Red Hook Redevelopment - Streetsblog New York City
City planners want to institute parking maximums and build a new busway through Red Hook and the Columbia Street Waterfront.
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Gregory Duncan @duncanarchitect.bsky.social · 02/09/2026
Nice timber church with a copper roof. Or is it a copper roof with a church underneath it?
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Gregory Duncan @duncanarchitect.bsky.social · 02/09/2026
Zoning TIL: you can store up to 1000 microcuries of uranium and thorium in manufacturing districts in New York
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Yonah Freemark @yonahfreemark.com · 01/09/2026
New York’s congestion pricing program has resulted in a statistically significant reduction in travel times for EMS vehicles
nber.org
Urban Congestion Pricing and the Response Times of Emergency Medical Services
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International Passive House Association (iPHA) @ipha.bsky.social · 31/08/2026
🌎 Chile’s first certified Passive House office building! Join our Project Spotlight on 2 September to explore how this 142 m² office in Nancagua demonstrates that Passive House works across diverse climates—not just cold ones. 🎤 With insights from the project team. 👉 ow.ly/5xIc50ZFePe
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Michael Burchert @michaelburchert.bsky.social · 31/08/2026
The fear of costs associated with the building transition is justified. We need to take concerns about high rents and construction costs seriously instead of dismissing them. That is the first step? 1/5
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Gregory Duncan @duncanarchitect.bsky.social · 28/08/2026
The curb replacements have come for Cortelyou Road in Ditmas Park. Work has been going a lot faster here though.
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Nick Simpson @iamnicksimpson.bsky.social · 28/08/2026
First phase of Wood City in Sikla, Stockholm. The world’s largest mass-timber urban project. Super impressive. Low embodied carbon, high density, good scale and massing, pedestrian-friendly layout and family-friendly landscaping. Easily one of the best housing developments I’ve set foot in.
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Andrew Lynch | vanshnookenraggen @vanshnookenraggen.com · 28/08/2026
What is the best way to serve the Lower East Side with a subway? The curious story of the strangest official subway proposal. www.vanshnookenraggen.com/_index/2026/...
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Floodlight @floodlightnews.org · 27/08/2026
NEW: Thermal drone footage shows the Microsoft-backed DataOne AI data center in Vineland, NJ is running dozens of gas generators. None of them have permits. A Floodlight visual investigation with @us.theguardian.com:
floodlightnews.org
One of East Coast’s largest data centers accused of ‘violating federal law’
Thermal drone footage shows DataOne — the Microsoft-backed AI data center in Vineland — is powering its operations with dozens of unpermitted generators
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Gregory Duncan @duncanarchitect.bsky.social · 27/08/2026
This technique could reduce carbon pollution from concrete by 78%. We should still replace concrete with bio-based, carbon sequestering building materials where possible. apple.news/AIydH1n2CQza...
apple.news
The circular chemistry that could make cement carbon-negative — Anthropocene Magazine
By closing the loop on the same reaction that makes cement, researchers say plants could capture more CO2 than they release.
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Gregory Duncan @duncanarchitect.bsky.social · 26/08/2026
New reclaimed materials hub in Sunset Park, Brooklyn. It’s a one-year pilot but hopefully it will become permanent www.aiany.org/news/nycedc-...
aiany.org
NYCEDC Launches Circular Construction Hub for Reclaimed Materials in Sunset Park — AIA New York
This week, New York City Economic Development Corporation (EDC) launched a reclaimed materials hub year-long pilot, called the Circular Construction Hub at MADE Bush Terminal in Sunset Park, Brooklyn....
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Gregory Duncan @duncanarchitect.bsky.social · 24/08/2026
Summer keeps getting hotter, so Seoul recognizes a “right to shade” and will provide shading for all sidewalks in the city. Urban planners in Vienna also have a proposal to shade public spaces - see link further down in the quoted thread. What about New York ? I guess we have sidewalk sheds…
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Nolan Hicks @ndhapple.bsky.social · 21/08/2026
Big Manhattan housing win: LPC says NoHo parking lots can be replaced with housing towers. The usual suspects lost the argument that the parking lot was somehow essential to the neighborhood’s historic character — www.nytimes.com/2026/08/21/n...
nytimes.com
Landmarks Panel Approves Designs to Replace Parking Lot With High Rises
Local groups in the NoHo neighborhood of Manhattan opposed the plan, saying designs for two apartment buildings did not reflect the neighborhood’s historical character.
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Gregory Duncan @duncanarchitect.bsky.social · 19/08/2026
I used to work across the street from Donald Judd’s studio in SoHo. Now I want to go to Marfa and see this. apple.news/AezwrKiM5QLW...
apple.news
One of Donald Judd's most enduring works has been thrown a lifeline — Wallpaper*
After dealing with decades of dirt and leaks, the artillery sheds at the Chinati Foundation in Marfa, Texas are about to receive a surgical renovation
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Gregory Duncan @duncanarchitect.bsky.social · 18/08/2026
This sounds like an interesting opportunity: Request for Expressions of Interest (RFEI): Project teams with an upcoming or in-development building project in New York State that could integrate bio-based and/or low-carbon materials: thecleanfight.fillout.com/t/vauDe3PsrMus
thecleanfight.fillout.com
The Clean Fight Bio-Based & Low-Carbon Materials RFEI
Made with Fillout, the best way to make forms, surveys and quizzes your audience will answer.
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International Passive House Association (iPHA) @ipha.bsky.social · 18/08/2026
🏡 How can Passive House support ageing with dignity? Discover Spain’s first certified PH residence for older people with disabilities. With excellent air quality, thermal comfort and reduced pollutants, odours and noise, it creates a healthier home for its 44 residents. 🎥 ow.ly/t3kA50ZAMf7
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Gregory Duncan @duncanarchitect.bsky.social · 15/08/2026
A Buried New York City Stream Gets a Second Life In the Bronx, NYC will unearth its first waterway to alleviate flooding and pollution — a test case as it scrambles to adapt to a changing climate. apple.news/AMdYYvdtURY-...
apple.news
A Buried New York City Stream Gets a Second Life — Bloomberg
In the Bronx, NYC will unearth its first waterway to alleviate flooding and pollution — a test case as it scrambles to adapt to a changing climate.
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Benjamin Schneider @benschneider.bsky.social · 14/08/2026
"With a few complementary transit projects, the mobility benefits of the IBX could extend to the Bronx and beyond, as envisioned by the RPA 30 years ago..." www.planetizen.com/features/138... :
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International Passive House Association (iPHA) @ipha.bsky.social · 12/08/2026
New update available for PHPP 10 users! The latest Climate and Component Data Update for PHPP 10 is now available to download via the Passive House Portal. Don’t have PHPP yet? You can purchase it through the Passive House Shop: ow.ly/k7sf50ZwEFc
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Gregory Duncan @duncanarchitect.bsky.social · 07/08/2026
Hard to pick a favorite from this series, but this church is definitely up there. I love the way the brick, concrete, copper, and stained glass work together.
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Passive House Plus @phplus.bsky.social · 06/08/2026
Modernist masterpiece gets near #passive update Gordon Bunshaft's Banque Lambert has presided over Boulevard Marnix since 1964, a listed modernist landmark facing the King's Palace, its celebrated precast concrete exoskeleton as distinctive today as the day it was built. mailchi.mp/passivehouse...
Black and white photo looking into office windows at people working.
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Gregory Duncan @duncanarchitect.bsky.social · 06/08/2026
The 1776 Freedom Ticket Annual pass for all public transit and regional trains in the US for $1776. Monthly $150 and weekly $40.
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Gregory Duncan @duncanarchitect.bsky.social · 04/08/2026
I wish housing were more affordable. Monkey’s paw…
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Mayor Zohran Kwame Mamdani @mayor.nyc.gov · 03/08/2026
We can't solve a housing crisis without building more housing. Today we broke ground on the Casanova Residence, which will soon be nearly 100 affordable and supportive homes with on-site services for New Yorkers. Every new home is a step toward a City that everyone can afford.
Mayor Mamdani stands at a podium next to Deputy Mayor for Housing Leila Bozorg.A construction worker in a neon green t-shirt and a white hard hat stands at the Casanova groundbreaking.
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Gregory Duncan @duncanarchitect.bsky.social · 29/07/2026
I love the linguistic diversity in Brooklyn
Sign on storefront:
WE DO ALTERATIONS
HIRTS AUN ERIN
DRY CLEANING
مضهه
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Michael Burchert @michaelburchert.bsky.social · 23/07/2026
Quick reminder that airtight, insulated buildings – which are often fitted with filtration systems – offer protection against smoke from forest fires fuelled by the burning of fossil fuels. The old world isn’t coming back. This can be retrofitted together with a heat pump, windows and insulation.
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Gregory Duncan @duncanarchitect.bsky.social · 21/07/2026
The first UL 3700-compliant plug-in solar microinverter is now available in the US - Engadget apple.news/AoxcPlQ7wTCu...
apple.news
The first UL 3700-compliant plug-in solar microinverter is now available in the US — Engadget
It’s a step toward making alternative energy accessible on a smaller, renter-friendly scale.
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Gregory Duncan @duncanarchitect.bsky.social · 20/07/2026
Tangentially World Cup related post: can we start sustainably harvesting cattails from the meadowlands for building materials?
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Katharine Hayhoe @katharinehayhoe.com · 09/01/2025
I’m a scientist who studies how climate change impacts our lives and the places we love. Most of us are worried, but many feel stuck on what to do. If that's the way you feel, check out this list below! We can’t fix it alone, but I know we can together. 💚
A list of the most effective ways an individual can catalyze change at the scale we need to effectively tackle climate change, based on social science.
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Philip Oldfield @sustainabletall.bsky.social · 13/07/2026
Want to keep people cool AND generate energy? Solar panel shading systems! This is a new timber-framed office and laboratory in Basel, by Herzog de Meuron
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David Roberts @volts.wtf · 13/07/2026
To kickstart the market for plug-in solar, a nonprofit is selling kits at no markup -- around $300. Get yours while you can!
canarymedia.com
A new deal on balcony solar just dropped in the US
Plug-in panels can lower your bills. To boost the American market for the tech, nonprofit Bright Saver is selling kits with no markup, starting at around…
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