Most prolific architects over the past 10 years

To better understand the architecture firms behind some of the city’s biggest projects, The Real Deal analyzed new building (NB) and alteration (A1 and A2) permits filed between 2008 and 2018. The result: a ranking of the architects with the biggest footprints throughout the five boroughs. 

SLCE Architects topped the list with 51.5 million square feet of development throughout the city. It was trailed by Skidmore Owings & Merrill with 35 million square feet, Perkins Eastman with 22.2 million square feet and Hill West Architects with 20.9 million square feet. TPG Architecture rounded out the top five with 20.2 million square feet.

Susan Boyle HLW International
Susan Boyle
HLW International
David West  Hill West Architects
David West
Hill West Architects
William Mandara Mancini Duffy Architecture
William Mandara
Mancini Duffy Architecture
Paul Taylor Stonehill & Taylor Architects
Paul Taylor
Stonehill & Taylor Architects
RankFirmTotal Square FeetNo. of Projects
1SLCE Architects51.5M169
2Skidmore Owings & Merrill35M28
3Perkins Eastman22.2M59
4Hill West Architects20.9M63
5TPG Architecture20.2M31
6Building Studio Architects18.6M13
7HLW International16.6M17
8Mancini Duffy Architecture14.5M18
9Stonehill & Taylor Architects14M36
10Dattner Architects12.9M82
11MdeAS Architects11.6M19
12Margulies Hoelzli Architecture11.1M11
13Platt Byard Dovell White10.8M17
Curtis + Ginsberg Architects10.7M48
Suk Design Group10.7M2
16Kohn Pedersen Fox Associates10.6M13
17STV Architects10.5M4
Adamson Associates Architects10.4M15
20Handel Architects10.1M37
Source: First published in March 2019 on TRD analysis of all NYC projects pre-filed with the Dept. of Buildings between Jan. 1, 2008 and Jan. 31, 2018. We considered all new building filings of 5,000 sq. ft. and up, as well as A1 and A2 (major alterations) filings for projects that doubled a building’s size to at least 100,000 sq. ft. Infrastructure projects were not included in the ranking. Project totals were shared with firms for confirmation and additional data. Not all firms participated.