Balcony Inspection & Structural Repair per SB-721 (California Law)
PiersPro — Foundation Repair, Structural Reinforcement & Waterproofing Experts in California
California has officially moved into full enforcement of SB-721 and SB-326 — two laws created to prevent balcony collapses, structural failures, injuries, and multi-million-dollar lawsuits. The initial deadlines have passed, and many property owners in 2025 are now out of compliance.
PiersPro specializes in structural repairs, waterproofing, wood restoration, load-bearing reinforcement, and advanced engineering solutions. We help property owners bring their buildings into full compliance and eliminate safety hazards in elevated exterior structures.
1. What Is SB-721? (Official Source)
Full law text: California SB-721 Bill Text
SB-721 requires safety inspections of Exterior Elevated Elements (EEE) in all rental residential buildings with 3 or more units. These elevated structures include:
- Balconies
- Exterior decks
- Walkways & corridors
- Landings & stair platforms
- Any exterior element over 6 feet above ground supported by wood
The law was implemented after the tragic Berkeley balcony collapse, caused by hidden wood decay under failed waterproofing. SB-721 ensures these structures are safe, load-bearing, and free of rot or deterioration.
2. What Is SB-326? (Official Source)
Full law text: California SB-326 Bill Text
SB-326 applies to condominiums and HOAs. The inspection requirements are similar, but only the following professionals may conduct the inspection:
- Licensed Structural Engineers (SE)
- Licensed Civil Engineers (PE)
- Licensed Architects
PiersPro works directly with trusted licensed engineers to perform SB-326 inspections for HOAs and then provides complete structural and waterproofing repairs recommended by the engineer.
3. Deadlines Have Passed — Most Buildings Are Now Out of Compliance
Both SB-721 and SB-326 required the initial inspection to be completed by January 1, 2025. Today, enforcement has begun in many California counties:
- Violation notices are being issued
- “Unsafe” building designations are increasing
- City inspectors request proof of compliance
- Emergency repairs may be mandated
- Units can be prohibited from being rented until fixed
This is why now is the critical time to complete inspections and structural repairs through specialists like PiersPro.
4. Penalties & Financial Liability for Non-Compliance
SB-721 Penalties (Rental Buildings)
Enforcement text from Health & Safety Code §17973: HSC §17973
Failure to comply may result in:
- Fines up to $500 per day
- City-ordered emergency repairs
- Orders to vacate unsafe units
- Insurance cancellation or premium increases
- Major liability in case of collapse or injury
SB-326 Penalties (HOA)
Non-compliant HOAs may face:
- Lawsuits from homeowners
- Personal liability for board members
- Special assessments for emergency repairs
- Insurance coverage disputes
5. Why SB-721 Exists — Real Risks of Structural Failure
Most elevated exterior failures are caused by:
- Hidden rot inside wood framing
- Failed waterproofing membranes
- Termite damage
- Corroded fasteners and connectors
- Improper construction or aging structures
These issues lead to:
- Dangerous structural instability
- Partial or total balcony collapse
- Tenant injuries and fatalities
- Multi-million-dollar lawsuits against owners
PiersPro specializes in identifying and correcting exactly these risks — before the structure fails.
6. Which Buildings Must Comply?
SB-721 Applies To:
- Triplexes and four-plexes
- Multi-unit residential buildings (3+ units)
- Mixed-use buildings with residential units
- Any rented residential structure with elevated exterior elements
SB-721 Does Not Apply To:
- Single-family homes
- Duplexes
- Non-residential commercial buildings
7. What an SB-721 Inspection Includes
PiersPro performs comprehensive structural inspections for SB-721, including:
✔ Structural Integrity Assessment
Detecting rot, moisture penetration, fungal decay, termite damage, and connection failures.
✔ Waterproofing Condition Review
Evaluating membranes, flashing, slope, drainage, and protective coatings.
✔ Load-Bearing Capacity Check
Ensuring the balcony can safely support required live loads.
✔ Concealed Damage Investigation
Using moisture meters, borescopes, and selective openings.
✔ Code Compliance Verification
Evaluating guardrails, hardware, corrosion, ledger connections, and structural layout.
A signed detailed inspection report is provided to the owner for record-keeping and compliance.
8. Who Can Perform SB-721 Inspections?
The law allows inspections by:
- Licensed General Contractors (Class B)
- Licensed Civil Engineers
- Licensed Structural Engineers
- Licensed Architects
PiersPro is a licensed General Contractor and legally authorized to perform SB-721 inspections for rental buildings.
For SB-326, where only engineers and architects can inspect, PiersPro partners with trusted licensed engineers and completes all structural repairs outlined in the engineer’s report.
9. PiersPro’s Full-Cycle Balcony Safety & Structural Repair Program
For SB-721 (Rental Buildings)
PiersPro performs the entire inspection and provides the complete repair solution.
- Structural inspection of elevated elements
- Moisture and decay assessment
- Load-capacity evaluation
- Complete waterproofing analysis
- Full written report with photographs
- Priority repair scheduling
For SB-326 (HOA Properties)
PiersPro coordinates:
- Licensed structural engineers
- Professional inspections and reports
- HOA documentation and communication
Then PiersPro performs:
- Structural wood framing replacement
- Ledger board rebuilds
- Cantilever reinforcement
- Waterproofing restoration
- Balcony and walkway resurfacing
10. Structural Repair & Waterproofing Services by PiersPro
Structural Framing Repair
- Replacement of rotten beams & joists
- Ledger board repair/replacement
- Reinforcement of cantilevered balconies
- Seismic strengthening and hardware installation
Waterproofing Systems
- EnduroKote fiberglass decking systems
- Polyurethane and elastomeric membranes
- Correct slope-to-drain installation
- Proper flashing and stucco integration
Finish & Safety Enhancements
- Deck resurfacing
- Railing repair or replacement
- Exterior walkway and landing restoration
11. Why Property Owners Choose PiersPro
- Licensed General Contractor specializing in structural and foundation repairs
- Engineering-level expertise in wood damage, structural failures, and waterproofing
- Turnkey compliance for SB-721 and SB-326
- Modern waterproofing systems including EnduroKote and polyurethane membranes
- Transparent reports with photographic evidence
- Fast inspection & repair scheduling
- Workmanship focused on long-term durability
- Reduced legal and financial risk for property owners
12. Consequences of Delaying Inspection or Repair
Delaying compliance significantly increases risk:
- Daily fines from the city
- Potential red-tagging of units
- Insurance claim denial for structural failures
- Lawsuits from tenants
- Liability for collapse-related injuries
Proactive inspection and repair is always more affordable than emergency structural work.
13. SB-721 Inspection Pricing
Typical pricing ranges:
- $350–$450 — small triplex
- $550–$850 — 4–8 unit buildings
- $850–$2,500+ — larger 20–40 unit properties
Repair costs depend on:
- Extent of wood damage
- Condition of waterproofing
- Structural complexity
- Accessibility
14. Bring Your Building Into Compliance
PiersPro provides:
- SB-721 balcony inspections
- SB-326 engineer-coordinated inspections
- Full structural repair
- Waterproofing restoration
- Code-compliant long-term solutions
Ensure your property is safe, structurally sound, and fully compliant with California law.



