David W. Berchenbriter and William J. Zwart sold a two-bedroom, three-bath condo at 62 W. 62nd St. in Lincoln Square to National Granite Accommodating Co., LLC for $1.3 million on July 23.

Unit #25C measures 1,314 square feet. The 27-story Allegro condominium was built in 1989 and houses 120 units.

Berchenbriter co-founded BerchWood Partners, an international placement agency with offices in New York, Boston, Chicago, San Francisco and London. He has been in the business for more than 25 years specializing in buyout and acquisition, restructuring, venture capital and real estate.

Previously, he worked with C.P. Eaton Partners and as director of marketing and new product development at Amerindo Investment Advisors. Earlier, he held executive roles with Devon Capital Management, Sentinel Real Estate Corp. and Smith Barney. Formerly, he was a Peace Corps volunteer in Colombia.

He earned his B.B.A. in economics from the University of Iowa.

Zwart is a partner at BerchWood Partners. He has been working in the field of law, government, public policy, and communications for over two decades. He joined the firm in 2001.

Prior to that, he served as operations director at Friends of CUNY, a not-for profit advocacy group. Previously, he was a legislative counsel for the New York State Senate and a former chief of staff to Senator Franz S. Leichter.

He obtained his B.A. in journalism and political science from the University of Minnesota and his J.D. from the William Mitchell College of Law.

There were 237 condo sales in Lincoln Square in 2008, with a median sales price of $1.125 million.

Address: 62 W. 62nd Street, Unit: 25C
Buyer(s): National Granite Accommodating Company Llc
Seller(s): David W Berchenbriter and William J Zwart
Sale date: Jul. 23, 2009