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Clay Hammerstein

Vice Chairman

cbre-label-license: Lic. 00980828

Clay Hammerstein Vice Chairman
Lic. 00980828
Downtown Los Angeles 400 S Hope Street
25th Floor
Los Angeles, CA 90071

Professional Experience

Clay Hammerstein has devoted his 34-year career to the representation of commercial real estate tenants throughout the United States.

Recognized repeatedly by Los Angeles Business Journal, Real Estate Southern California, Real Estate Forum and Commercial Property News as one of the top brokerage professionals in the industry, Mr. Hammerstein provides strategic advisory and transaction implementation services to leading service firms and major U.S. and multi-national corporations.

Prior to the merger of Insignia/ESG (IESG) and CBRE, Mr. Hammerstein served as a co-founder and co-leader of IESG’s Southern California brokerage division. In this capacity, he was critical to the successful expansion of the firm into the Western U.S., and its development into a top-tier occupier services firm.

Mr. Hammerstein co-founded CBRE’s Global Law Firm Practice Group, which has served over 77 of the top 100 law firms in the country. He has a deep knowledge of the legal industry’s evolving trends and unique space needs and advises many of the leading law firms globally on their occupancy strategies.

A creative dealmaker and skilled consensus-builder, Mr. Hammerstein has extensive experience representing some of the world’s most respected financial, consulting and creative firms including Bloomberg, Goldman Sachs, State Street Bank, Credit Suisse, Netflix and Gensler.

Professional Affiliations


  • Former Board Of Directors, Juvenile Diabetes Research Foundation, L.A. Chapter



  • University of Colorado, Bachelor of Science; Political Science



  • Colbert Coldwell Circle Member, top 3% of CBRE professionals worldwide (2003-2019)
  • Real Estate Southern California’s Annual Top Broker List (2004-2019)
  • Los Angeles Business Journal’s Top Office Broker List (2007-2019)



Significant Assignments


  •  Southern California Gas Company’s 350,000 SF renewal in Downtown Los Angeles
  • Munger, Tolles & Olson’s 150,000 SF lease in Downtown Los Angeles
  • Loeb & Loeb’s 160,000 SF renewal in Century City
  • Fenwick & West 128,000 SF renewal in Mountain View
  • Waller Lansden’s 158,000 SF renewal in Nashville
  • Steptoe & Johnson’s 250,000 SF headquarters assignment in Washington, D.C.
  • L.A. Care’s 350,000 SF headquarters relocation in Los Angeles


  • Allen Matkins
  • Arnold & Porter Kaye Scholer
  • AV Squad
  • Baker Hostetler
  • Bloomberg
  • Carlton Fields
  • Credit Suisse
  • Entertainment Partners
  • Fenwick & West
  • Fox Rothschild
  • Gensler
  • Gibson Dunn
  • Goldman Sachs
  • Katten Muchin Rosenman
  • K&L Gates
  • KB Home
  • L.A. Care
  • Loeb & Loeb
  • Mayer Brown
  • Mitchell Silberberg & Knupp
  • Munger Tolles & Olson
  • Netflix
  • Nixon Peabody
  • Nossaman
  • Norton Rose & Fulbright
  • Orrick Herrington & Sutcliffe
  • Sidley Austin
  • Simpson Thacher & Bartlett
  • State Street Bank
  • Steptoe & Johnson
  • Stroock
  • WPP
Clay Hammerstein Vice Chairman
Lic. 00980828
Downtown Los Angeles 400 S Hope Street
25th Floor
Los Angeles, CA 90071