The Old Douglas Center Historic District encompasses the historic heart of Douglas, Massachusetts. The historic district radiates away from the town common, and is bounded by farmlands and more recent 20th-century development. There are 50 contributing resources in the 192-acre (78 ha) district. Most of the structures are residential houses in Federal and Greek Revival styles. There are a number of institutional buildings, including the 1834 Greek Revival First Congregational Church, the Craftsman-style Douglas Pastime Club building at 22 Church Street, and the c. 1770s Dudley Tavern. The town common and the adjacent Center Cemetery, laid out when the town was incorporated in 1746, are at the center of the district.