1. Contact the local real estate agent: The real estate agent may have the old houses on the list that can help you.
2. Search real estate websites: Many real estate websites provide a list of old houses, and you can search for relevant information on the website.
3. Contact the real estate management company: Real estate management companies generally manage older buildings and can help you find sellers.
4. Consult the local government: If the old house is in the historical area, you can consult the local government for more information.
5. Ask about ancillary facilities: If the old house has ancillary facilities, such as garage, garden, etc., you can find neighbors or property management personnel to understand the relevant situation.
Once you find the seller, you can provide some information about the house and the community, and give them tips and suggestions on selling and buying a house.