NEW YORK CITY-It isn’t likely to scale the 2007 heights of the $48-billion office investment sales market here, but 2010 is a decided improvement over last year’s historic low point, experts told a NAIOP New York City audience Tuesday.

The $6.8 billion in sales year to date are on pace to double or even triple the 2009 total of $3.5 billion, moderator Jon Caplan said, and the NAIOP panelists—all of whom have contributed to this year’s tally—shared some of the thinking behind their investment plays. All agreed that raising debt and equity this year is an easier proposition than a year-and-a-half ago.

One of the most active buyers and sellers this year has been SL Green Realty Corp. Among other deals, the office REIT has acquired 600 Lexington Ave. for $193 million and 125 Park Ave.—where Tuesday’s NAIOP event took place—for $330 million, while selling its 45% stake in 1221 Ave. of the Americas for $576 million and, earlier this month, entering a contract to sell 19 W. 44th St. for $123.2 million. The 600 Lex and 125 Park deals represented “two totally different plays,” said SL Green managing director Isaac Zion.