Immediately next door, at Vanha Suurtori 3, is a building called “the Old Town Hall” which never actually was a town hall. The actual old town hall was located here until the fire of 1827, and this house (says Wikipedia) was built upon what remained of the ruined structure after the fire. It was a factory intio the 1920s, before being acquired by the city as a police station. It’s now an art gallery and banquet hall.