Resource Library
Passive House Accelerator: Minimize, Maximize or Balance: Designing for Net Zero on an Urban Site
Overview
This presentation provides insights on when to minimize or maximize certain design factors and emphasizes the critical role of balance in multifamily, high-performance, high-density projects.

This Next Gen episode features Kara Haggerty Wilson of Onion Flats Architecture. Kara highlights key design elements and addresses how each was curated to achieve Front Flats, an Onion Flats-designed, built, and developed high-performance, net-zero urban-sited building in Philadelphia. Many qualities of high-performance buildings push the limits of typical design and often require a delicate balance to capture efficiencies. This presentation provides insights on when to minimize or maximize certain factors and emphasizes the critical role of balance in multifamily, high-performance, high-density projects.
Kara Haggerty Wilson is a Philadelphia-based architect and passive house consultant at Onion Flats Architecture. Since joining Onion Flats in 2017, her experience at the firm has shifted from the architect as developer and builder model to a renewed focus on designing and consulting on client-based high-performance projects, with a specific interest in deep energy retrofits along the east coast and beyond.
Related Resources
1950s Home Retrofit to Super Efficient Passive House
Watch to learn about a 1950s Montreal house that was retrofitted to become an efficient passive house by adding a 16 inch thick layer of cellulose insulation to the exterior.
BPA & Service Year Alliance: AmeriCorps Capacity – Building Opportunity Webinar
In this webinar, we provide an in-depth overview of AmeriCorps State and National Programming, uncovering available resources for weatherization and clean energy agencies.
The Interconnected House
Watch as Energy Circle installs a basement subfloor after a series of problems related to gutters, roof, foundation, and insulation.