If you are buying a San Diego property with plans to change its use, write down the proposed change and the address first. A listing description can give you questions to ask. The parcel record and the applicable regulations are where to check the answers.
Find the parcel and base zone
Start with the City of San Diego zoning page. Open its Zoning and Permit Portal, search the address and match the parcel before recording the base zone. Follow the City’s links to the use and development tables for that zone.
Identify which overlay matters to your plans
Save the names of any overlays you see. If transit is relevant, consult the guide to checking a transit designation. A federal Opportunity Zone designation answers a separate tax question. Ask a qualified tax adviser about your circumstances before relying on a tax benefit.
Take one specific question to the City
For example, ask which reviews would apply to converting an existing space at this address. Include the parcel number, the use you have in mind and any permit records you found. For an address outside the City of San Diego, start with the planning department for that jurisdiction.