What Is a Structural Integrity Reserve Study?

On June 24, 2021, the Champlain Towers South condominium in Surfside, Florida partially collapsed, killing 98 people. Investigations revealed that the building had significant structural deterioration — deterioration that had been documented years earlier but never adequately addressed or funded. The reserve fund was chronically underfunded, and the board had deferred critical structural repairs for over a decade.

The tragedy forced a nationwide reckoning with how condominium associations assess and fund structural maintenance. One of the most significant outcomes was the creation of a new category of reserve planning: the structural integrity reserve study (SIRS).

What Is a Structural Integrity Reserve Study?

A structural integrity reserve study is a specialized form of reserve study that focuses specifically on the structural and life-safety components of a building. Unlike a standard reserve study — which inventories all major common-area components including amenities, landscaping, and cosmetic elements — a SIRS zeroes in on the components whose failure could compromise the building’s structural soundness or occupant safety.

The concept was codified into law in Florida through Senate Bill 4-D (2022) and later refined by House Bill 1021 (2024). Florida now requires condominium associations with buildings three stories or taller to complete a SIRS as part of their reserve planning. The study must be conducted or reviewed by a licensed engineer or architect.

What Components Does a SIRS Cover?

Florida’s legislation defines a specific list of structural and life-safety components that must be included in a SIRS. These components are:

Roof — structural decking, waterproofing membranes, flashing, and drainage systems
Load-bearing walls — exterior and interior walls that support the building’s weight
Foundation — footings, slabs, pilings, and below-grade structural elements
Floor and ceiling framing — structural slabs, beams, joists, and supports between floors
Fireproofing and fire protection — fire-rated assemblies, sprinkler systems, and fire alarm infrastructure
Plumbing — supply lines, drain lines, water heaters, and related infrastructure
Electrical systems — panels, wiring, transformers, and emergency power systems
Waterproofing and exterior painting — sealants, coatings, and weatherproofing systems that protect structural elements from moisture intrusion
Windows and exterior doors — glazing, frames, and seals in common elements

For each of these components, the study must document the current condition, remaining useful life, and estimated replacement or restoration cost. It must also include a funding plan that ensures the association sets aside enough money to address these components when they reach the end of their useful life.

Critically, Florida law now prohibits associations from waiving or reducing reserves for SIRS components. Before the Surfside collapse, Florida boards could vote to fund reserves below recommended levels — or even skip funding entirely. That option no longer exists for structural and life-safety items.

How Does a SIRS Differ From a Standard Reserve Study?

The key differences between a structural integrity reserve study and a standard reserve study are:

Scope

A standard reserve study covers all major common-area components — structural and non-structural alike. This typically includes 40 to 80+ line items ranging from the roof and foundation down to pool furniture, signage, and landscaping irrigation. A SIRS focuses exclusively on the 9 structural and life-safety categories listed above.

Professional Requirements

A standard reserve study can be prepared by a Reserve Specialist (RS) or other qualified professional. A SIRS must be conducted or reviewed by a licensed professional engineer or architect who can assess structural conditions that go beyond visual observation.

Funding Rules

In Florida, associations can still vote to reduce funding for non-structural reserve components (though this is generally inadvisable). For SIRS components, full funding is mandatory — boards cannot waive or defer these reserves regardless of homeowner vote.

Inspection Depth

A standard reserve study relies primarily on visual inspection of component conditions. A SIRS may require more invasive investigation — including material testing, moisture detection, and structural load analysis — depending on the building’s age and condition.

Which States Require a SIRS?

As of 2026, Florida is the only state with a formal SIRS mandate. However, the Surfside collapse triggered legislative activity across the country:

Florida — Mandatory for condominium buildings 3+ stories, effective December 31, 2024 (initial deadline, extended for some associations)
California — No SIRS requirement, but SB 326 (effective January 1, 2025) requires licensed inspections of elevated exterior elements (balconies, walkways, decks) in buildings with 3+ units. This covers a subset of SIRS components. See our detailed guide on SB 326 inspection requirements.
Colorado, Maryland, and several other states — Have introduced or are considering legislation requiring enhanced structural assessments for aging condominium buildings
Local jurisdictions — Some cities (notably Miami-Dade and Broward counties in Florida) had existing structural recertification programs that predated the state law

The trend is clearly moving toward more structural accountability for condominium associations nationwide.

California’s Position: SB 326 and Beyond

California does not currently require a structural integrity reserve study. However, the state has taken significant steps toward structural accountability through SB 326 (the Balcony Inspection Law) and its companion bill SB 721.

What SB 326 Requires

SB 326 applies to condominium associations (common interest developments) with buildings containing three or more multifamily dwelling units that have elevated exterior elements — balconies, decks, walkways, stairways, and railings that extend beyond the building’s exterior walls and rely on wood or wood-based structural components.

The law requires:

Initial inspections by a licensed architect or structural engineer by January 1, 2025
Subsequent inspections every 9 years thereafter
Inspections must assess the structural adequacy and safety of the elevated elements
Findings must be incorporated into the association’s reserve study and funding plan
If immediate safety hazards are found, the inspector must notify the local code enforcement agency within 15 days

For a complete breakdown, see our California law page.

Why California Boards Should Consider a Proactive SIRS

Even without a state mandate, there are compelling reasons for California condominium boards to commission a structural integrity assessment:

Aging building stock. Many of Los Angeles’s condominium buildings were constructed in the 1960s through 1980s. Buildings of this era are now 40 to 60+ years old and approaching the point where major structural systems need significant investment. A SIRS identifies these needs before they become emergencies.

Seismic risk. California’s earthquake exposure adds a dimension of structural concern that does not exist in most other states. A SIRS can assess whether structural components have been compromised by past seismic events and whether current reserve funding accounts for earthquake-related deterioration.

Fiduciary protection. If a structural failure occurs and the board has never assessed the building’s structural condition, individual board members could face personal liability claims. Commissioning a SIRS — even when not legally required — demonstrates that the board exercised reasonable care in its oversight. For more on this topic, see our guide on HOA board fiduciary duty.

Staying ahead of legislation. Given the national trend toward mandatory structural assessments, California may enact SIRS requirements in the future. Boards that have already completed a SIRS will be ahead of the curve rather than scrambling to comply with a new law under tight deadlines.

Insurance and lending. Insurance carriers and mortgage lenders are paying closer attention to the structural condition of condominium buildings post-Surfside. Associations that can demonstrate a current structural assessment and adequate reserve funding may find it easier to obtain favorable insurance rates and maintain lender eligibility for unit buyers.

How a SIRS Connects to Reserve Funding

A structural integrity reserve study is not a standalone document — it feeds directly into your association’s reserve fund and financial planning. The component-level cost estimates from a SIRS should be integrated into the association’s overall reserve study so that the funding plan accounts for both structural and non-structural needs.

For example, if the SIRS identifies that the building’s plumbing system has a remaining useful life of 8 years and an estimated replacement cost of $650,000, that figure needs to appear in the reserve study’s 30-year cash flow projection. The annual contribution recommendation should reflect this upcoming expense alongside all other reserve obligations.

Without integration, the board risks having a technically sound structural assessment sitting in a drawer while the reserve fund remains inadequately funded to address the findings. The assessment only matters if the money is there when the work needs to be done.

Protect Your Building and Your Community

Whether your state mandates a structural integrity reserve study or not, understanding the condition of your building’s critical systems is one of the most important things your board can do. A SIRS gives you clarity on structural risks, defensible cost estimates, and the data your board needs to fund repairs before they become emergencies.

Apex Reserve Study provides comprehensive reserve studies for condominium and HOA communities throughout Los Angeles and Southern California. We can help your board assess whether a structural integrity component should be incorporated into your reserve planning — and ensure your funding plan reflects the full picture.

Contact us today for a free consultation. Call (818) 806-7885 or submit our online form to discuss your community’s needs.