Timothy M. Lyne, executive vice president and partner CB Richard Ellis/Whittier Partners here, tells GlobeSt.com that the private banking, wealth management and advisory services firm signed a 10-year lease on the added space at Ten/10 Post Office Square following last year's signing of an 11-year lease renewal. Terms of the lease were unavailable, but Lyne said the 13-story, 450,000 sf building generally rents in the mid-$30 per-sf range. The company will use the offices for its headquarters.

The property, a two-building downtown office which numbers among its tenants some of the financial world's leading names including Dow Jones and Capital One, is approximately 90% occupied. Built between 1925 and 1929 on an entire city block in the Financial District, it underwent substantial renovations in 1999 that included the replacement of windows and sidewalks, improvements to the buildings lobbies, corridors and restrooms, and the installation of new mechanical and life-safety systems.

Lyne along with Peter Conlin, an associate with CB Richard Ellis/Whittier Partners, represented the owner, an affiliate of Walton Street Capital. Charles S. O'Connor, with the Trammell Crow Co. in Boston, handled the deal for the tenant.