A Passive House stays comfortable through a 42°C afternoon on a fraction of the energy a normal building needs — lower bills, cleaner air inside, and far less to fix over the years. Péclet designs them for India's climate, not Europe's.
A Passive House combines a continuous layer of insulation, a genuinely sealed envelope, good windows, and a small system that constantly brings in filtered fresh air while recovering the heat or coolness that would otherwise be wasted.
The result: a building that holds a comfortable temperature almost by itself, on a fraction of the energy a conventional building needs — proven with testing, not a guess on paper. No solar panels required, no exotic materials. Just the basics, done properly.
A sealed, insulated envelope cuts cooling load dramatically, so your AC runs far less to do the same job.
No hot upstairs bedrooms, no cold spots, no scrambling to adjust the thermostat through the day.
Continuous filtered fresh air — a real difference in cities where outdoor air quality is poor.
The same sealed, heavy envelope that stops heat also blocks a surprising amount of outside noise.
Because the building itself does most of the work, indoor temperature holds far longer without power or AC.
Better moisture control means less cracking, less mold, and less material damage down the line.
Dramatically lower energy use, year after year, for as long as the building stands.
Matters most exactly when it matters most — peak summer afternoons, when the whole city's AC is running.
Smaller, less-used cooling systems mean less of a potent greenhouse gas at risk of leaking out.
A durable envelope spreads its upfront environmental cost over a much longer working life.
Ratings like LEED, IGBC, and GRIHA are genuinely useful for site choices, materials, and water use, scored across many categories. Passive House asks a narrower question — will this specific building actually stay comfortable on very little energy — and answers it with testing, not points.
Cold, dry winters, heating-dominated. Moisture is trying to escape outward through the wall. The main problem is keeping heat in.
Hot, humid, and composite climates, cooling-dominated. Moisture is trying to get in, monsoon included. The main problem is keeping heat — and moisture — out.
In building physics, heat moves through a wall two ways — carried by air leaking through gaps, or spreading slowly and predictably through the material itself. The ratio between the two has a name: the Péclet number. A leaky building is ruled by the first, unpredictable kind. A Passive House is engineered so the second, predictable kind takes over — the slider in the diagram above is that shift, live. It's also where our name comes from.
Homes and buildings designed from the first sketch for comfort and ultra-low energy use — not retrofitted after the fact.
We model exactly how your building will perform — energy use, comfort, humidity — before a wall goes up, using real Indian climate data.
Walls, roofs, and windows detailed for Indian heat and monsoon humidity, not translated from a European section.
Guidance for project teams pursuing formal Passive House certification, from early design through final testing.
Vivek's background spans construction engineering and Passive House practice across the United States and India, including work on the design and construction team of a Certified Passive House project in New York.
Péclet exists to bring that discipline to Indian construction — where it is still rare, and where the climate case for it is arguably stronger than anywhere it has been built so far.
New construction, retrofit, or a project already underway that needs a building-physics second opinion — send the basics and we'll get back to you.
studio@péclet.com