Learn how to retrofit an existing home into apassivehousewith 12 expert steps. Make yourhouseenergy-efficient and sustainable in 2025.
Learn how to build your firstpassivehousewith this step-by-step guide. Discover practical tips for energy efficiency, sustainable design, andcreatingacomfortable, eco-friendly home.
From townhouse additions to brownstonerenovationsto new builds, are you consideringPassiveHousedesign but don't know where to start?

Renovating anapartmentwithout finishing? This detailedrenovationtimelineand construction materials checklist is designed for spaces up to 100m². Learn how long each stage of therenovationtakes — from rough engineering to decor — and when to buy essential materials like tiles, flooring, pipes, and paint.
Discover the factors that influenceapartmentrenovationtimelinesand get a realistic estimate for your project.
Learn how to design and buildPassiveHousesfor energy efficiency and healthier living. Find out the benefits and systematic approach used.
Plan your NYCapartmentrenovationwith confidence. Explore a realistic 5-11 monthtimeline, permitting stages, construction phases, costs, & expert tips.

Example of serialrenovation: Thisapartmentblock in Cologne, Germany, was retrofitted to thePassiveHousePlus Standard uding prefabricated modules. The tenants stayed in the building during the works.