01 / Understand the question
What Is a Retroactive Permit?
A retroactive permit is a permit sought after work was already done. Older additions, garage conversions and interior remodels can raise this question when a property is sold, refinanced or prepared for new work.
Work done without required permits may have a path to permitting, but that does not mean it can be approved as built. Start by separating what exists on the property from what the records document.
A missing search result is a question, not a verdict. It does not prove that a permit never existed. An older address, another jurisdiction or records unavailable online may require a broader search.
02 / Follow the paper trail
What records should you check first?
- Confirm the jurisdiction. A Los Angeles mailing address does not settle whether City of Los Angeles, LA County or another city handles the property. Use the City’s building-record resources for City records; the County’s Building and Safety page includes a jurisdiction lookup.
- Match the property and work. Search the address, unit and available parcel identifiers. Compare the described addition, conversion or remodel with the permit’s work description and available approved plans.
- Follow the permit through inspection. Look for issue dates, inspection results, corrections and final status. Review related electrical, plumbing and mechanical permits and relevant occupancy records.
- Keep gaps and conflicts visible. If a seller’s description, an approved plan and a portal entry disagree, record each source. Identify the missing document or agency question rather than choosing the most reassuring version.
For a step-by-step search workflow, see how to check permit history in Los Angeles.
Issued, finaled and scope answer different questions.
Was a permit issued?
An issued permit is not proof that all the work was completed or all inspections passed.
What was signed off?
Check the final record for that permit. A final on one permit does not resolve unrelated work.
What work did it cover?
A roof, panel or garage permit does not by itself document approval of an addition or dwelling conversion.
Common Types of Unpermitted Work
These are the kinds of work to match against the record, rather than assuming that one permit covers everything:
- Garage conversions and ADUs built without permits.
- Room additions or enclosed patios.
- Electrical panel upgrades and rewiring.
- Plumbing relocations and bathroom additions.
- Major interior remodels with no record of permits.
Researching an accessory unit? Use the ADU permit-history checklist to compare the unit, approved scope and inspection trail.
03 / Prepare for verification
What may happen during legalization?
The responsible agency and project professionals must establish the requirements for the actual work. Depending on the conditions, that may involve:
- Plans showing the existing conditions.
- Engineering if structural changes were made.
- Opening walls or ceilings for inspections.
- Corrections to bring the work into compliance with applicable requirements.
The City’s guidance on obtaining permits to resolve orders explains that zoning constraints can prevent some work from being permitted. Confirm the current requirements and any applicable pathways with the agency; a record review cannot promise an outcome.
Why This Matters for Buyers & Sellers
Questions about unpermitted work can affect appraisal and financing, liability concerns, and plans for future permits. Those implications need review with the appropriate lender, real estate or legal professional, and project team.
Before relying on a listing, disclosure or verbal assurance, ask which documents support the described work. A homeowner, buyer, seller, agent, architect or contractor may need the same starting point: a traceable record and a clear list of what remains unresolved.
Questions before the next decision
Retroactive permit FAQ
Can you get permits after work was already completed in Los Angeles?
It may be possible, but approval is not automatic. The responsible agency must evaluate the work and applicable requirements. Plans, inspections, corrections or changes to the existing work may be needed; some work may not be approvable as built.
What happens if I buy a house with unpermitted work?
The record questions remain after a sale. If a City of Los Angeles order applies, the City says the current owner is responsible for compliance even when a previous owner did the work. Before relying on a seller's description, review the records and discuss unresolved issues with the agency and qualified real estate, legal and design professionals.
How can I tell whether an addition or garage conversion was permitted?
Match the address or unit to the permit, then compare its scope and available approved plans with the work in question. Check inspection and final records and any relevant occupancy documents. A permit for a garage or an unrelated remodel does not, by itself, establish approval of a dwelling conversion.
Does PermitPulse determine whether work is legal?
No. PermitPulse traces available public records, identifies conflicts and missing evidence, and prepares questions for verification. It does not determine legality, certify code compliance, replace a physical inspection or guarantee permit approval.
Agency starting points: LADBS property records, LA County Building and Safety, and the City’s guidance on orders. Confirm current rules and property-specific requirements directly.