• WEBSITE UNDER CONSTRUCTION!

    We are making some changes to our site.

     

    Please be patient with us. 

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  • Onion Flats IN THE NEWS

    Front Flats "Best Development of the Year Award" in Philadelphia
    5th Square - Philadelphia’s Urbanist Political Action Committee
     
     



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  • Design-Build-Develop

    As architects, we are interested in achieving the highest level of design.  As builders, we are interested in letting the process of making further enhance the architecture.  As developers we work to maximize the opportunities of each site.  In all aspects we employ strategies that function in multiple levels, to have the greatest impact.  Work with Onion Flats to realize your projects full potential. 

     

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  • GROUND BREAKING PASSIVE HOUSE DESIGN

    - 28 Apartments (300-500sf)

    - 24,141 sf

    - R34 walls, panelized system

    - R 54 roof/floors

    - DE-Centralized VentilationERV

    - DE-Centralized heating/cooling

    - SEMI-Centralized Hot Water

    - Centralized Electric Metering

    - 174 kw PV array



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    "Be sure to check in for updates."

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  • Certified Passive House in Erie, PA!

    Parade Street Commons East- Erie, PA

     

    Photo Credit: Corey Cook/CookMediaLLC

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    "NET POSITIVE POWER GENERATION!"

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  • SUPER INSULATED

    The home’s exterior incorporates utilitarian materials of rough-sawn, pine tar stained siding, Corten steel shake tiles and standing seam metal panels, and raw board formed concrete to provide richly patterned surfaces that will transform over time as the materials patina with age. The interior plays off the same wood, steel and concrete detailing and pays homage to the neighborhood’s grand white oak trees in the flooring, ceiling soffits and kitchen cabinets.  The home’s composition, however, is more than skin deep. Beneath the façade, lies a high-performance envelope and mechanical systems utilizing Passive House detailing. 

    Photo Credit Sam Oberter

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    ".14ACH50 BLOWER DOOR TEST"

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  • THE BATTERY IS A WINNER!

    Groundbreaker Award: Green Building United: The Battery

    ULI Philadelphia Willard Rouse Award of Excellence for BOTH Capital Flats 1,2,3 AND South Point (Onion Flats Architecture, Innova: Developer)
     
    PHIUS Multifamily Project of the Year Award:  The Battery
     
    Design Philadelphia 2018, 2nd place: The Battery.   It was a long shot entering this project into a product design competition but they didn’t think so:
     

     

     

     

     

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