V20 Group of Darien, the new owner of 6.9 acres at the industrial site, met with neighbors on March 4. On March 11 the Stamford Planning Board unanimously approved V20 Group’s application to consolidate three parcels, knock down six buildings, and put up a 112,800-square-foot, single-story warehouse. Things are moving fast. Joe Vaccaro, who runs V20 Group with his father, John Vaccaro, told neighbors in a letter that demolition at the site is underway, set to be finished by the end of March. Bill Hennessey, the land use attorney who represented V20 Group before the Planning Board, said that in the Stamford area there is “high demand for flex-industrial buildings … that are adaptable to different uses,” such as light manufacturing, shipping, or fitness facilities. He anticipates multiple tenants, similar to what V20 Group developed on West Avenue in Stamford, Hennessey told the Planning Board. That warehouse is fully leased, with two main tenants. One is window company Renewable by Anderson, which has space for light assembly, a showroom and offices, Hennessey said. The other main tenant is a sports training facility, he said.