The 2025 Fall International Passive House Open Days will take place this weekend, from November 7–9, 2025. Organized by the International Passive House Association, Passive House Network (PHN) and Passive House California (PHCA) the International Passive House Open Days offer a unique chance to explore Passive House buildings in California, across the U.S. and around the world.
Tour projects, meet current owners, and experience first-hand what it’s like to live or work in a Passive House. Learn about the building and retrofitting process, and in many locations, connect with professionals who can explain the technical details and benefits of high-performance design.
LOS ANGELES, CA: Urban Infill via SB9 & ADU
This project by PARAVANT Architects embraces California’s forward-thinking regulations to combat the housing shortage in Los Angeles by introducing additional residential units via a SB9 & ADU. Designed to meet the rigorous International Passive House Standard for new construction designed as all-electric buildings . The intent of this owner-occupied single-family home project is to create additional on-site rental units that provide retirement income while showcasing a Passive House community in Los Angeles. The project demonstrates the comfort, exceptional indoor air quality, and superior building performance achievable through the leading international Passive House low-energy building standard.
Date: Saturday, November 8, 2025
Time: 10am – 12pm
REGISTER
LOS ANGELES, CA: EnerPHit Retrofit with JADU
The project by PARAVANT Architects is a residential retrofit located in West Los Angeles / Marina del Rey, transforming an existing single-family home to meet the International Passive House Standard. The home is pursuing EnerPHit certification for existing buildings through the Passive House Institute (PHI). The retrofit also includes the integration of a Junior Accessory Dwelling Unit (JADU) and achieves exceptional energy performance, indoor air quality, and comfort throughout the property. It is designed as an all-electric home, further reducing its environmental impact and reliance on fossil fuels.
Date: Saturday, November 8, 2025
Time: 10am – 12pm
REGISTER
BERKELEY, CA: Berkeley Passive House
This single family residence with attached garage is Passive House and LEED Platinum certified.
Date: Saturday, November 8, 2025
Time: 1pm – 4pm
No RSVP needed.
LAKEWOOD, CA: EnerPHIt Retrofit & Addition
This single-family all-electric project by PARAVANT Architects involves a retrofit and floor area addition to an existing home originally built in the 1950s. The project is pursuing EnerPHit certification for existing buildings through the Passive House Institute (PHI). It is currently under construction and scheduled for completion at the end of November 2025.
Date: Sunday, November 9,2025
Time: 12pm – 2pm
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Pebble Beach, CA: 17 Mile Haus
This home sits on a heavily wooded lot along Pebble Beach’s storied Seventeen Mile Drive. It aims to keep as many trees as possible on the site, to demonstrate what is possible in terms of exemplary performance, and to sit lightly on the land in terms of resources and materials.
Date: Sunday, November 9th
Time: 12:30pm – 4:30pm
SEBASTOPOL, CA: Windhorse Orchard
Windhorse Orchard is a Passive House and Living Building Challenge Remodel in a Wildland-Urban Interface Zone.
Date: Sunday, November 9, 2025
Time: 10am – 2pm
If you are in California, don’t miss the opportunity to visit a local Passive House and experience its comfort and efficiency for yourself.
NOT IN CALIFORNIA – EXPLORE PASSIVE HOUSES IN THE USA
This event is hosted in collaboration with USGBC-CA’s Wildfire Defense Home Tours.
SHOWCASE YOU CERTIFIED PASSIVE HOUSE PROJECT:
Participate with your California based Passive House/EnerPHit
