If you are tracing a San Diego subdivision’s older development history, start with the City’s Subdivision Cards. Its index cards contain historical permit information, reference numbers, and summaries of discretionary actions and agreements filed with Development Services through the 1990s. Record the card’s subdivision name and reference number, then seek the underlying file. A card does not prove permit issuance or a passed final inspection.
Search the subdivision card, then keep its reference
The City’s card page has a Search All Text box and a Filter by Subdivision control. Begin with the subdivision name from a map, title document or City case, allowing for alternate spelling. The page groups card links by subdivision, and some have several numbered cards. Check the relevant group rather than stopping at the first similar name. This is a subdivision-oriented index; an empty address lookup in a different permit tool would not answer whether a card exists.
When a candidate card is available, record its exact title and any plan, permit, approval or agreement reference it gives. Compare the subdivision and location to the property you are researching before carrying the number into a request. Do not turn a short summary into a claim that a discretionary approval was final or that a building permit passed inspection. Our permit lookup by address guide can help when the subdivision name and modern street address do not align.
The 2003 data boundary is a different record stream
The City’s current Information Bulletin 110, dated April 2026, lists the Open Data Portal as digital data from paper-based applications dating back to 2003. It separately lists Subdivision Index Cards for older historical permit details and discretionary-action summaries through the 1990s. These are different holdings, not a single database with a 2003 start date for every City record. A missing pre-2003 application in the Open Data dataset does not erase an older index card; a card hit does not imply the later application dataset contains the file.
Use the record type to choose the next step:
- For an old subdivision, discretionary action or agreement clue, open the Subdivision Cards index and preserve any reference number.
- For a known recent application or permit, use the online resources that IB-110 lists, including OpenDSD, Accela, Permit Finder and Open Data, then compare the case or permit number to the work you need.
- For an underlying paper file or building plan, contact Development Services Records with the reference rather than assuming an online summary supplies the document. IB-110 says paper project files and building plans are not available at its self-service stations and require a staff appointment.
Ask for the underlying file when the card is only a clue
IB-110 asks a records requester to have at least one usable identifier: property address, plan file number, approval number, permit number, legal description or APN. If a card provides an approval or permit number, send that exact number with the subdivision name and explain whether you need the discretionary-action file, agreement, map, permit or plan. Don’t expect a downloadable plan from a card link.
What Development Services Records can show you in person
IB-110 (April 2026) sets out the rules at the Development Services Center, 7650 Mission Valley Road:
- Self-service stations: no appointment needed during regular hours. They give access to the Project Tracking System (PTS) for permit research, which is a good place to check a number copied from a card.
- Paper files and building plans: only with a staff appointment, booked through the City’s appointment page.
- How far back plans go: the City holds official copies of permitted building plans dating back to about 1955, with some exempt buildings, and common-interest development plans retained since January 1, 1989.
- Viewing rules: copying, tracing, sketching or photographing plans during a viewing is prohibited.
- Plan copies: a separate in-person request that needs written permission from both the current property owner and the design professional who signed the plans, under California Health and Safety Code sections 19850 to 19853.
- Fees: copies of records cost $0.25 a page.
For a subdivision traced through a card, this sets the outer limit: an approval from the 1920s may survive only as a card summary or a map, while building plans for homes in the tract are more likely to exist if they were permitted after about 1955.
For a property-specific conclusion, compare the underlying approval and permit to the parcel and work, then look for inspection or completion evidence if that is the question. Our final inspection status guide covers that separate evidence stage. A card may point to a project that changed later; check the underlying file for later amendments before describing its approval history.
City of San Diego Subdivision Cards page and Information Bulletin 110 checked October 20, 2026.