What SB 4-D Requires — The Short Version
Senate Bill 4-D (2022), amended by Senate Bill 154 (2023) and House Bill 913 (2025), requires every Florida condo and co-op building three or more habitable stories tall to complete a Structural Integrity Reserve Study (SIRS) at least every 10 years. The SIRS evaluates eight component categories and determines how much money the association needs in reserves to fund future repairs and replacements.
The eight components: roof, load-bearing walls and primary structural members, fire protection systems, plumbing, electrical systems, waterproofing and exterior painting, windows and exterior doors, and any other item with a replacement cost exceeding $25,000 that affects structural integrity or safety. Starting in 2025, associations cannot waive or reduce funding for these components. The initial compliance deadline was December 31, 2025 (extended from the original 2024 deadline by HB 913).
Additionally, buildings that received their certificate of occupancy before July 1, 1992 — which includes all Century Village buildings constructed in the 1970s and 1980s — were required to complete a milestone structural inspection by the end of 2024 (within 3 miles of the coast) or 2025. Century Village is approximately 12 miles from the coast, so the 30-year milestone inspection threshold applies.
Century Village's Exposure by Building Era
Not all Century Village buildings face the same SB 4-D burden. The key variable is age — older buildings have structural components closer to or past their expected useful life, which means the SIRS will identify larger funding requirements. The following table estimates the exposure profile by construction era.
| Construction Era | Building Age (2026) | Key Components at Risk | Estimated Reserve Exposure | Risk Level |
|---|---|---|---|---|
| 1978–1983 | 43–48 years | Original plumbing risers, roof (2nd replacement due), waterproofing, electrical panels | $15,000–$30,000/unit | High |
| 1984–1988 | 38–42 years | Roof (replacement due within 5 years), plumbing approaching end of life, fire suppression updates | $10,000–$20,000/unit | Medium-High |
| 1989–1993 | 33–37 years | Roof approaching replacement, waterproofing refresh, electrical capacity upgrades | $5,000–$15,000/unit | Medium |
| 1994–1998 | 28–32 years | Roof has 5–10 years remaining, systems mostly functional, preventive maintenance focus | $3,000–$8,000/unit | Lower |
Estimates are based on typical structural component lifespans, South Florida replacement costs, and industry reserve study benchmarks. Actual assessments depend on each building's specific SIRS findings, existing reserve balance, and board-chosen funding strategy. These are not building-specific projections — they are range estimates by construction era.
The Math on a 1980-Era Building
A 100-unit building constructed in 1980 with a SIRS-identified reserve shortfall of $2 million needs to close that gap. The three paths:
Path 1: Special assessment. $20,000 per unit, payable in a lump sum or installments. Many fixed-income residents cannot absorb a $20,000 assessment, creating a wave of forced sales.
Path 2: HOA increase. Fund the shortfall over 10 years through monthly fee increases. $2 million ÷ 100 units ÷ 120 months = $167/month additional per unit, on top of existing fees. A building already charging $500/month in building-level HOA goes to $667/month.
Path 3: Loan. The association borrows $2 million and services the debt through HOA fees. At 7% over 15 years, the monthly debt service is approximately $18,000 — or $180/unit/month added to the HOA. Similar impact to Path 2 but with interest cost.
The Eight Components — What the SIRS Actually Evaluates
1. Roof
Flat roofs on Florida condo buildings have a typical lifespan of 20–25 years. A 1980-era building is on its second or third roof. Replacement cost for a 4-story, 100-unit building: $800,000–$1.5 million depending on size and material. If the current roof has 5 years of useful life remaining, the SIRS requires reserves sufficient to replace it in 5 years. If the building has $200,000 set aside and needs $1.2 million, the shortfall is $1 million — $10,000 per unit.
2. Load-Bearing Walls and Primary Structural Members
Concrete construction is standard for Century Village's mid-rise buildings. Chloride-induced rebar corrosion and carbonation are the primary concerns in South Florida's humid, salt-air environment. Buildings within 3 miles of the coast face accelerated corrosion — Century Village is 12 miles inland, which reduces but does not eliminate this risk. Structural concrete repairs can range from $50,000 for localized spalling to $500,000+ for widespread rebar remediation.
3. Plumbing
Plumbing risers (the vertical pipes serving all floors) in 1978–1988 buildings are approaching or past their 40-year design life. Full riser replacement in a 4-story building is a major project: $500,000–$1 million for a 100-unit building, requiring temporary relocation of residents during the work. This is often the single largest capital project a condo building undertakes, and many Century Village buildings have deferred it for years.
4. Electrical Systems
Original 1980s-era electrical panels and distribution systems may not meet current code. Panel replacement and capacity upgrades: $200,000–$400,000 for a 100-unit building. Often combined with fire alarm system upgrades for efficiency.
5. Fire Protection Systems
Sprinkler systems, fire alarms, and emergency lighting all have defined replacement cycles. Many older buildings had grandfather clauses for sprinkler requirements that are being reconsidered post-Surfside. A full fire protection system upgrade: $150,000–$350,000 depending on scope.
6. Waterproofing and Exterior Painting
Exterior waterproofing membranes, balcony coatings, and joint sealants have a 10–15 year cycle in South Florida. A complete exterior waterproofing and painting project: $300,000–$600,000 for a 100-unit building. This is a recurring cost that should already be in the reserve plan.
7. Windows and Exterior Doors
Impact window and door replacement is not currently required by the SIRS unless the existing systems are failing. However, buildings with original 1980s-era windows face both energy efficiency and wind mitigation concerns. Impact window installation for common-area doors and hallways: $100,000–$250,000. Individual unit windows are typically the owner's responsibility under most association governing documents.
8. Other Items Exceeding $25,000
This catch-all covers elevators, parking structures, pools within the building's responsibility (vs CVP pools), retaining walls, and any other component with a replacement cost above $25,000. For Century Village, elevator modernization is a significant item — buildings with elevators face $150,000–$300,000 per elevator for modernization on a 25–30 year cycle.
What Buyers Should Demand Before Making an Offer
The SB 4-D Due Diligence Checklist for Century Village
1. Has the building completed its SIRS? If yes, request a copy. If no, ask when it will be completed and what interim reserve plan is in place.
2. What is the total SIRS-identified reserve requirement? This is the number — in dollars — that the building needs in reserves to fund all eight component categories over their useful life.
3. What is the current reserve fund balance? The gap between the requirement and the balance is the shortfall that must be funded.
4. How is the shortfall being funded? Monthly increases, special assessment, loan, or some combination? What is the timeline?
5. Are there any pending or approved special assessments? A special assessment approved but not yet billed is a debt you inherit at closing.
6. What is the building's milestone inspection status? For buildings 30+ years old, the milestone structural inspection is a separate requirement from the SIRS. Has it been completed? Were any findings reported?
A building that has completed its SIRS, has a funded reserve plan, and has no pending special assessments is a fundamentally different financial proposition than a building that hasn't completed its SIRS and has a $15,000/unit shortfall on the horizon. The purchase prices may be similar. The total cost of ownership is not.
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