Timothy McDonald

Tim McDonald

Timothy McDonald

CPHT, LEED AP Homes, CPHC®

Architecture, Construction, Development, Energy Engineering, Subcontractor, Sustainability Consulting

  • 27 Year Career

About

Tim McDonald is a licensed architect and Certified Passive House Consultant and Tradesman with a passion for designing and realizing resilient and sustainable communities.

Timothy McDonald is a registered architect and Certified Passive House Consultant, Builder and founding principal of Onion Flats LLC, an award winning development/design/build collective centered in Philly and Boston. He earned his Masters degree from McGill University and his BArch from Penn State, and has been teaching, practicing and lecturing widely for over 25 years.  The firm’s focus on community development, multidisciplinary thinking and making, high-performance building technologies and alternative construction methodologies has won them many national and international awards including the 2016 and 2018 Green Building United’s Ground Breaker Award, the 2014 International Passive House Award, the 2010 ULI Global Award of Excellence, and the Emerging Voices Award by the Architectural League of New York in 2008. Through his research and practice, Tim, along with his partners at Onion Flats, has developed, designed and built some of the first Passive House projects in the country.

Experience

Building Types

  • Mixed Use
  • Office
  • Residential: Affordable Multi Family
  • Residential: Multi-family
  • Restaurant
  • Retail

Achieved Project Certifications

  • LEED
  • PHI
  • PHIUS

Awards

  • ARCHITECT magazine’s 2021: R+D Award: Front Flats
  • 2021: Best Mixed-Use Developments Design-Build Company, Northeast USA: Onion Flats....BUILD: 6th Annual Construction and Engineering Awards 
  • 2020 FRONT FLATS: Best Development of the Year Award in Philadelphia...5th Square - Philadelphia’s Urbanist Political Action Committee
  • 2019 AIAPA Award: Tim McDonald: Impact Designer Award, 2019 
  • 2018 PHIUS North American Passive Building Project Award......1st Place Market-Rate Multi-Family Housing Award for “The Battery”
  • 2018 Green Building United:  Groundbreaker Award: The Battery
  • 2018 Design Philadelphia “Best In Design” Award.......2nd Place Winner: “The Battery: A Net-Zero, Carbon-Neutral, Affordable, Scalable, Replicable Urban Prototype” 
  • 2018 ULI Willard Rouse Award for Excellence: Capital Flats AND South Point
  • 2018 Greensgrow’s Boar of the Year Award : This award celebrates significant contributors to the community of food and sustainability in Philadelphia - and Kensington in particular. 
  • 2016 DVGBC Groundbreaker Award: The PHFA Project (The New Gravity Project): The Delaware Valley Green Building Council recognized “The PHFA Project” as a groundbreaking policy initiative focused on expanding high-performance building thinking and construction in affordable housing. 
  • 2015 PHIUS North American Passive Building Project Award, 1st Annual: 2nd Place Affordable Housing Award for Belfield Townhomes 
  • 2014 International Passive House Award: Belfield Townhomes
  • 2014 Sustainable Business of the Year Award: Onion Flats: Award given by The Greater Philadelphia Chamber of Commerce
  • 2013 AIA Honor Award: Belfield Townhomes: Belfield Townhouses chosen by Philadelphia Chapter of AIA
  • 2012 BIG VISION AWARD: Sustainability and Design: Onion Flats’ Belfield Townhomes; The Phila. City Paper
  • 2010 Good Green Design Award, Chicago Athenaeum Museum of Architecture and Design:  Thin Flats
  • 2010 Award for Excellence: GLOBAL, Urban Land Institute:  Thin Flats: ULI’s GLOBAL Award for Excellence identifies FIVE projects from around the world that exemplify workable, livable and sustainable models for future development.
  • 2009 AIA Honor Award: Thin Flats: Thin Flats chosen by Philadelphia Chapter of AIA
  • 2009 Penn Future Green Building Leader Award: Onion Flats chosen as a leader in building Pennsylvania’s renewable energy future.
  • 2009 NAHB National Green Building Awards Competition: Thin Flats selected as the 2009 Project of the Year - Multifamily Condominium Award 
  • 2009 Thin Flats awarded the Philadelphia Sustainability Award
  • 2008 Winner: From the Ground Up: Innovative Green Homes, Architectural Competition, Syracuse NY

Testimonials

Northern Liberties Neighbors Association

Testimonial for Onion Flats

To whom it may concern:

As President of the Northern Liberties Neighbors Association (NLNA), I am pleased to have the opportunity to recommend Onion Flats. Having observed and worked with Onion Flats in multiple capacities over the past 15 years, I can confidently say that Onion Flats would be an outstanding partner, uniquely qualified to ensure the fulfillment of the goals of your project.

Over the course of two decades and about 40 projects, Onion Flats has become a widely recognized innovator in multiple development areas. The firm pioneered the modern revival of the design/build approach that integrates architectural design with the construction process in an iterative manner that improves both design creativity and financial efficiency. It helped ignite the nationwide green building movement and remains a leader in Net Zero energy efficient development. And it has achieved remarkable success incorporating energy efficient design into affordable housing developments that have made it off the drawing board into reality.

Onion Flats achievements are made possible not only by the acumen of its principals Timothy McDonald, Patrick McDonald, and Howard Steinberg, but also by their deep involvement with their local communities. Tim volunteered thousands of hours of time and expertise over many years as a member of the Northern Liberties Neighbors Association zoning committee, helping to review and improve private development projects in Philadelphia’s fastest-growing neighborhood. His volunteer efforts went above and beyond the norm, including the donation of hundreds of hours of pro bono architectural consulting to multiple private developers, for the sole purpose of elevating the design and functionality of the built environment in the community. Similarly, all three principals donated time, equipment, and design expertise to a $350,000 renovation and storm water management project for Liberty Lands, which is a two-acre, community owned park, playground and community garden in the center of the Northern Liberties neighborhood. And Onion Flats makes itself available, 24/7, to provide guidance to the Northern Liberties Neighbors Association on any matter relating to zoning, permitting, architecture, construction, and environmental sustainability.

Finally, in my longtime role as NLNA President as well as the chair of a coalition of 17 Philadelphia civic groups, I have intensive, ongoing contact with development stakeholders across the city of Philadelphia, which has given me insight into Onion Flats’ broader reputation. These stakeholders include members of City Council; developers; leaders of other civic groups; zoning and land use attorneys; principals at architecture and design firms; the city’s Planning Commissioners; the Commissioners of the Departments of Licenses and Inspections, Streets, and Water; the heads of urban design programs at the University Pennsylvania and Drexel University; and officers in the Philadelphia American Institute of Architects and Building Industry Association. 

From these myriad interactions I have learned of Onion Flats’ reputation as an architecture firm, a builder, a community partner, a financial and project manager, a communicator of ideas both theoretical and technical, and a navigator of bureaucracy. I can attest that the NLNA’s opinion of Onion Flats is shared across Philadelphia. The firm is universally known, and the mere mention of its name in association with any project inspires confidence. I do not exaggerate when I say I have never heard a negative word spoken about the firm. Onion Flats’ reputation is peerless, and well-earned. 

I recommend Onion Flats without reservation or qualification. The City of Newark will be a better place for their involvement in this project.

Sincerely,

Matt Ruben, President, NLNA