Does my California apartment building need an SB 721 balcony inspection, and what if I missed the deadline?
If your California building has three or more apartments and any wood-supported balcony, deck, porch, stairway or walkway more than six feet above the ground, it needs an inspection under Health and Safety Code section 17973, the balcony law often called SB 721. The first round was due by January 1, 2026 and repeats every six years. If you missed it, hire a qualified inspector now: repairs then run on a 120-day permit clock and a 120-day repair clock, and penalties start only after the repair deadlines pass.
Is my building covered? Four questions
Section 17973 applies when every answer below is yes. If any answer is no, the state rule does not reach that element, although your city can still adopt a stricter rule of its own (subdivision (o)).
- Does the building contain three or more multifamily dwelling units? A duplex is out; a triplex is in.
- Is the building owned as a rental, not a condominium or other common interest development? Subdivision (n) leaves common interest developments out, because a separate law covers them.
- Does the element extend beyond the exterior wall and have a walking surface more than six feet above ground? The law lists balconies, decks, porches, stairways, walkways and entry structures, including their supports and railings.
- Does it rely in whole or in substantial part on wood or wood-based products for structural support? A concrete balcony on steel is outside the state definition; a concrete topping on wood joists is inside it.
Ground-floor patios, steel exterior stairs and anything under six feet fall outside the definition. Most garden-style buildings from the 1960s to the 2000s with wood balconies and wood exterior stairs are inside it.
Who can inspect and what the report must cover
You hire the inspector, and the law limits who that can be: a licensed architect, a licensed civil or structural engineer, a contractor holding an A, B or C-5 license with at least five years of experience building multistory wood-frame buildings, or a building inspector certified by a recognized association. The inspector cannot be employed by the local jurisdiction while doing the work.
The inspection must look at a sample of at least 15 percent of each type of elevated element, by direct visual examination or a comparable method, and assess the load-bearing parts and the waterproofing that protects them (flashings, membranes, coatings and sealants). The written report, stamped or signed, is due to you within 45 days of the inspection. It must include photos, any test results, the current condition, expected future performance and service life, and whether any element is an immediate threat.
Example a made-up 16 unit building has 16 wood balconies and 4 wood exterior stairways. Fifteen percent of 16 balconies is 2.4, and 15 percent of 4 stairways is 0.6. Rounding up keeps you at or above the minimum: inspect at least 3 balconies and 1 stairway, and more if the inspector sees signs of trouble.
The repair clock after the report
What happens next depends on what the report says. These are the deadlines written into subdivisions (d), (h) and (i).
| Finding | What you must do | Deadline |
|---|---|---|
| Immediate threat to occupants | Stop access right away (lock or barricade the door, close the stair) or do emergency repairs such as shoring. The inspector sends the report to the city. | Immediately; inspector reports to the city within 15 days of the report |
| Repair needed, not an emergency | Apply for a building permit. | Within 120 days of receiving the report |
| Permit approved | Finish the repairs with a licensed contractor, following the inspector, the manufacturer and the building code. | Within 120 days of permit approval, unless the city extends it |
| Repairs still not done | The inspector notifies the city and you. | After 180 days |
| Still not done after that notice | Civil penalty set by the city of $100 to $500 per day, and the city can record a building safety lien. | Starts 30 days after the notice |
From Health and Safety Code section 17973 as published on 2026-10-30. Your city may require more, such as filing the report. This is not legal advice; check with your building department.
If you missed January 1, 2026
Section 17973's daily penalty is tied to unfinished repairs, and your city may enforce a late inspection in its own way. Either way, waiting only adds risk: a balcony that fails hurts people, your insurer and lender may ask for the report, and subdivision (d) requires you to hand every report to a buyer when you sell. A practical catch-up plan:
- List every elevated wood element by type and location, with a photo of each.
- Get two or three written proposals from qualified inspectors. Ask each to state the sample size and method, and whether they also bid on repairs.
- Book the inspection and give tenants written notice of entry. Balcony access usually means entering the unit, so follow Civil Code section 1954: reasonable written notice, normal business hours, with 24 hours presumed reasonable.
- If the inspector finds asbestos and cannot finish, subdivision (d)(2) allows up to nine months for abatement and then three months to finish the inspection. Keep the abatement records for three years.
- Diary the 120-day permit deadline from the day the report arrives.
Buildings permitted on or after January 1, 2019 follow a different first date: inspection within six years after the certificate of occupancy (subdivision (e)).
Budgeting for the six-year cycle
Because the inspection repeats every six years, treat it like any other replacement reserve item rather than a surprise. Subsequent reports must include the prior ones, so the same inspector can often compare conditions quickly, and the law requires you to keep all reports for at least two cycles.
Example a made-up owner receives an inspection quote of $3,600 for one building. Spread across a six-year cycle (72 months), that is $50 a month into the reserve. If the report also calls for $18,000 of joist and flashing repairs, the owner books the inspection as an expense and the structural repair according to the repair-or-improvement rules, with the tax preparer making the final call.
Ask the inspector to note expected service life for each element type. Those numbers feed straight into your capital reserve plan.
Keeping the balcony file in DoorKeeping
In DoorKeeping, open a work order for the inspection, send the job to the inspector by link, and store the signed report in the property documents so it is ready for the next cycle or a sale. Repair bills are read and coded by AI into the right expense account, and nothing is paid without your one-tap approval. You can then ask Claude or ChatGPT, through DoorKeeping, which balcony repairs are still open and what they have cost so far. DoorKeeping is $2 per unit per month, with no other fees for you or your tenants.
Sources
- California Health and Safety Code section 17973 (exterior elevated elements), read Oct 30, 2026
- California Civil Code section 1954 (landlord entry), read Oct 30, 2026
Questions
- Does SB 721 apply to condominiums?
- No. Section 17973 excludes common interest developments, such as condominiums. Rental buildings with three or more units are covered.
- How often is the balcony inspection required?
- The first inspection was due by January 1, 2026, and then by January 1 every six years after that. Newer buildings permitted on or after January 1, 2019 are due within six years of the certificate of occupancy.
- Can my handyman do the balcony inspection?
- No. The inspector must be a licensed architect, a licensed civil or structural engineer, a contractor with an A, B or C-5 license and five years of multistory wood-frame experience, or a certified building inspector.
- What is the penalty for not making the repairs?
- If repairs are not done within 180 days, the inspector notifies the city; 30 days later the city can charge $100 to $500 per day and record a lien. Check your city for added rules.