If you are asking if the property is in a historic district, the realtor (or Town Hall) should be able to tell you. Historic districts often do have restrictions.
If the property is not in a historic district, I'd suggest you have a conversation with the building inspector.
Associate Broker, Massachusetts, Connecticut, and New York
Berkshire Property Agents
12 Railroad Street
Great Barrington, Massachusetts 01230
I have a document that I can e mail you that explains the foreclosure purchase process which you are welcome to use with your realtor as a guide.
Where would you like me to send that?