Berkon's immediate task at hand is to oversee the demolition andthen reconstruction of 1812 N. Moore St. in Rosslyn, VA. The580,000-sf, 35-story office tower will be the tallest building inthe submarket, once its redevelopment is complete. Longer term, hewill help guide the company's plans to redevelop much of itsRosslyn portfolio over the next 10 years into class A trophybuildings and mixed-use projects. "The [Westreich] family built alot of the buildings in Rosslyn," Berkon tells GlobeSt.com. "In theintervening decades zoning here has increased, allowing for largerand taller buildings."

In May 2007, Monday Properties completed the purchase of a10-building, 2.5 million-sf office portfolio from Beacon Propertiesfor $1.23 billion. These 10 buildings represent 30% of Rosslyn'soffice market, the company says. They are the 1.1 million-sf TwinTowers, 1000 Wilson Blvd. and 1100 Wilson Blvd.; 1101 Wilson Blvd.,a 325,830-sf office; 1200 Wilson Blvd., which is 145,702 sf; the280,259-sf 1701 N. Fort Myer Dr.; the 359,724-sf 1400 Key Blvd. and1401 Wilson Blvd.; the 241,844-sf 1501-1515 Wilson Blvd.; and the82,326-sf 2990 Telestar Ct. This portfolio was developed byWestfield Realty, which was co-founded in 1965 by StanleyWestreich, Anthony Westreich's father. Anthony Westreich is now theCEO of Monday Properties.

Berkon was director of design and construction for BrookfieldProperties in the District, supervising the ongoing development ofthe 326,000-sf 77 K St. Prior to that, he spent years withCarrAmerica Development, most recently as vice president. There, heoversaw the construction of a number of major District landmarks,including the 750,000-sf International Monetary Fund headquartersat 1900 Pennsylvania Ave., and the 229,000-sf 1201 F St. officebuilding.