Etsy, the e-commerce site offering a cornucopia of handmade and vintage goods, is in talks to greatly expand its office footprint in Dumbo, Brooklyn .

The company is negotiating, according to several sources, for up to 200,000 square feet within a five-building complex of office properties in Dumbo that was acquired last year by a partnership between investors Jared Kushner, Aby Rosen and the institutional investment firm Invesco. The new owners have re-named the complex as Dumbo Heights.

It was not immediately clear which properties among the five that Etsy will lease. The company, which has built a wildly popular forum for sellers of everything from Boston terrier stenciled doormats to tourmaline encrusted gold rings, is currently located nearby in Dumbo at 55 Washington St.

The deal at Dumbo Heights would appear to be a dramatic expansion beyond what it has at its current location, an office that totals about 15,000 square, according to reports.

The Dumbo Heights complex sits at the southern end of Dumbo and consists of 175 Pearl St., 55 and 81 Prospect St., 117 Adams St., and 77 Sands St. The buildings range in height from nine to 12 stories and are joined by sky-bridges. For years they were owned—along with many others in the area—by the Watchtower Society. It is the central organization for the religious group, the Jehovah's Witnesses, which is relocating its operations Upstate.

Last year, the partnership between Messrs. Kushner and Rosen and Invesco purchased the properties for a reported $375 million and set about converting them into hip office spaces that would appeal to the surging tech and new media industries in the city, many of which have a preference to work in cool precincts like Brooklyn. Among the amenities the owners plan to offer are roof-deck space.

The owners unveiled a spiffy new website for the properties recently.

Neither the owners nor Etsy immediately responded to a request for comment.