High Performance Retrofit for a Historic Brooklyn Brownstone

This project transforms a historic brownstone into a home that exceeds energy code requirements, demonstrating that high-performance design and heritage can coexist. A deep energy retrofit upgraded the envelope with cellulose insulation, high-performance windows and doors, and improved airtightness. An all-electric heat-pump system and an energy-recovery ventilator provide continuous filtered fresh air. The roof is planned for future solar panels, enabling on-site energy generation.The home is designed around the family’s life, integrating individual wishes throughout. An exposed brick party wall adds texture and history to a bedroom. A custom basement sauna provides space for wellness, while beneath the metal deck, a pull-up bar with a swing attachment accommodates play and exercise. Restored pocket doors allow the TV room to fully darken for movie time.Healthy materials and historic details balance comfort and craftsmanship, achieving near Passive House performance and offering a model for retrofitting the city’s iconic row houses.