An office building in lower Manhattan at 335-337 Broadway is close to being sold and is slated to be converted into residential condos, according to sources.

The 165,000-square-foot building in the City Hall submarket, which was marketed as 93 Worth St. for over a year, is now in contract. Sources said the buyer is the Horizon Group, a real estate development and investment company active in Westchester and New Jersey. The sale price and details of the transaction could not be immediately determined.