
One of the most urgent challenges in buildings today is how to affordably retrofit existing ones. Too much of our current building stock wastes energy and is unhealthy or uncomfortable to occupy, especially in low-income communities and communities of color. In order to limit global warming to 1.5°C, the International Energy Agency's Net Zero by 2050 Roadmap urges a step jump in "zero-carbon-ready" retrofits to a rate of 30 million dwellings per year through 2030. Passive House retrofits provide a proven pathway to dramatically reduce the energy use and operation carbon emissions of existing buildings of all types. Both PHI and PHIUS offer retrofit certification pathways, and project teams around the world are tackling retrofits of everything from single-family brownstones to apartment towers.
Read, view, and listen to Passive House retrofit examples and insights in the articles, videos, and podcast interviews below.
Articles

12/20/24
Retrofit Highlights of 2024
Article, Retrofit

10/31/24
Johnson City Retrofit Strives to Become a Net Zero Energy Home
Retrofit, Sponsored, Single-Family House

9/13/24
Phius REVIVE 2024: Charting the Course to Efficient and Resilient Retrofits
Article, Phius, Energy Modeling, Retrofit

8/22/24
Building Reuse Is Climate Action
Article, Retrofit, Climate Action
Videos

3/12/25
Building with Straw Insulated Panels | Project of the Month | PHA Live!
Video, PHA Live, PHA Events

3/5/25
Insulating with Natural Materials | 101 Series | PHA Live
PHA Live, Video

2/20/25
Mastering Modern EIFS with Stone Wool Insulation | Passive House Component Spotlight
PH Component Spotlight, Video

2/19/25
Mastering Window Airtightness for High-Efficiency Buildings | Construction Tech | PHA Live!
PHA Live, Video, Building Science
Projects

4/18/24
Bellwether on Main
Project Case Study, Single-Family House, New construction, Phius

4/18/24
Bird's Wing Passivhaus + Duplex
Project Case Study, Passive House-Related Org, Mixed Use, New construction, Multifamily, Single Family, Duplex/Multiplex, Mass Timber

4/18/24
Leichhardt enerPHit
Project Case Study, Passive House-Related Org, Mixed Use, Retrofit, Single Family, Multi-family Dwelling (mixed use)

4/18/24
Colombini Residence
Project Case Study, Mixed Use, New construction, Single Family, Mass Timber