August 21, 2026

SB 721 and AB 2579: Apartment Balcony Inspection Guide

Deadlines, inspector qualifications, scope and cost for California SB 721 balcony inspections on apartment buildings, including the AB 2579 extension and what happens if you miss the date.

Short answer: California Health & Safety Code section 17973, added by SB 721, requires owners of apartment buildings with three or more dwelling units to have exterior elevated elements inspected by a qualified inspector, then re-inspected every six years. AB 2579 moved the first-inspection deadline to January 1, 2026. Condominiums fall under a separate law, SB 326, administered through the HOA.

What counts as an exterior elevated element

Balconies, decks, porches, stairways, walkways, and their railings — more than six feet above ground, designed for human occupancy, and supported substantially by wood or wood-based products. Concrete or steel balconies with no wood structural support are outside the SB 721 scope, though a prudent owner still inspects them.

Deadlines and cycle

RequirementDetail
First inspectionJanuary 1, 2026 (extended from January 1, 2025 by AB 2579)
Re-inspection cycleEvery 6 years
Buildings coveredApartment buildings with 3 or more dwelling units
Sample sizeStatistically significant sample — a minimum of 15% of each type of element, with a result that can be extrapolated to the whole building
Report retentionReport kept for two inspection cycles and provided to the local enforcement agency on request
New constructionBuildings with a certificate of occupancy issued after January 1, 2019 start their clock six years from that date

Who is allowed to perform it

Section 17973 restricts the inspection to a licensed architect, a licensed civil or structural engineer, a contractor holding an A, B or C-5 license with specified experience and not performing the repairs, or a certified building inspector or official from a recognized state, national or international association. A general home inspector without one of those credentials cannot sign the report. Ask for the credential in writing before you engage anyone.

What the inspection actually involves

  1. Inventory. Every exterior elevated element by type, so the 15 percent sample is drawn correctly rather than from whatever was easiest to reach.
  2. Visual survey. Waterproofing membranes, flashings, deck coatings, guardrail attachment, ledger connections, and drainage.
  3. Intrusive inspection where required. Where load-bearing components are not visible, the inspector must open up or use approved testing to evaluate the concealed condition. Moisture meters and probing are common; small openings and patching are sometimes unavoidable.
  4. Report. Current condition, expected future performance and useful life, photographs, and identification of any element posing an immediate threat.
  5. Emergency conditions. If an element is an immediate threat to safety, the owner must restrict access and notify the local enforcement agency within 15 days; preventive repairs must be corrected within 180 days of the report unless an extension is granted.

What it costs

Pricing follows unit count, element count and access difficulty rather than square footage. Typical market ranges we see in Southern California:

Building sizeTypical range
3–10 units$1,000–$2,500
11–50 units$2,000–$6,000
51–150 units$5,000–$15,000
150+ units / multi-buildingQuoted per building

Add cost for lift or scaffold access, and for the destructive testing and patching where concealed framing must be opened. Repairs are separate — and by statute, the inspector cannot be the contractor doing them.

Missing the deadline

Non-compliance is enforced locally. Exposure includes citations and civil penalties, a building-code lien against the property where the owner fails to correct, and — the practical one — a lender or buyer discovering there is no current report during escrow. Insurers increasingly ask for it at renewal. If you are behind, get the inventory and sample inspection scheduled now; the report date is what matters.

Buying or refinancing multifamily

Ask for the SB 721 report the same day you ask for the rent roll. No report, or a report listing uncorrected preventive repairs, belongs in the immediate-repairs table of the property condition assessment, not in a side email. Related reading: California balcony inspection requirements and apartment complex commercial inspections.

Need this scoped? USCBI performs commercial inspections across San Diego, Orange, Los Angeles, Riverside and San Bernardino counties. Request scope and fee and we normally reply the same business day.

FAQ

Common questions

When is the SB 721 balcony inspection deadline?
AB 2579 moved the first-inspection deadline to January 1, 2026, with re-inspection every six years thereafter. Buildings receiving a certificate of occupancy after January 1, 2019 run six years from that date.
Which buildings does SB 721 apply to?
Apartment buildings with three or more dwelling units that have exterior elevated elements — balconies, decks, stairways and walkways more than six feet above ground and supported substantially by wood. Condominiums are covered by SB 326 instead.
Who can perform an SB 721 inspection?
A licensed architect, a licensed civil or structural engineer, an A, B or C-5 licensed contractor with the required experience who is not doing the repairs, or a certified building inspector from a recognized association.
How much does an SB 721 inspection cost?
Typically $1,000 to $2,500 for 3 to 10 units, $2,000 to $6,000 for 11 to 50 units, and $5,000 to $15,000 for 51 to 150 units, plus access equipment and any destructive testing required to evaluate concealed framing.
What happens if a balcony is found unsafe?
The owner must restrict access immediately and notify the local enforcement agency within 15 days. Preventive repairs identified in the report generally must be corrected within 180 days unless an extension is granted.

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Send the address, asset type and approximate square footage. We reply with scope and fee, usually the same business day.

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