Demolition work started recently at the former Fire Mountain restaurant on North Main Street.

The lot where the eatery, which closed in September, was located will be turned into a 25,000-square-foot retail center, said Troy Parker, a leasing agent for Cushman & Wakefield Thalhimer.

One building, approximately 20,000 square feet in area, will be located about where the restaurant was, Parker said. A second building will be set closer to the street.

Construction on the first building should be complete around April 30, and the other should be completed about the end of June, Parker said.

One lease has been signed with Sprint, and about four or five others are in final negotiations, Parker added. About 10 to 12 spots ultimately will be available.

Parker said he envisions two to three restaurants mixed with other retailers selling hard and soft goods.

The property is owned by Michael D. Sifen Inc. under the name “Suffolk Main Street Shoppes” and was purchased for $2 million.