Construction is about to get underway on a $250 million Prince George’s County development that is expected to bring more than 500,000 square feet of mixed-use to Capitol Heights.

Hampton Park, the redevelopment of the 25-acre Hampton Mall, will include a $35 million, 115,000-square foot office building slated to house the Prince George’s departments of Health and Human Services, Veteran Affairs and Family Services. That building will also house a 17,000-square-foot senior day center.

The Hampton Park project, its backers say, will feature a national brand hotel with 120 rooms, 100,000 square feet of retail, including a 20,000-square-foot Market Fresh Gourmet grocer and an Ivy City Smokehouse, the restaurant’s first location outside of the District. The residential portion will contain 200 units of multistory, market-rate apartments.

“We are deeply concerned about some of the food deserts we have in Prince George’s County,” County Executive Angela Alsobrooks said during a Friday morning…