New Construction vs. Older Condo in Miami: What SB 4-D Changed the Equation

The question used to be straightforward: newer buildings cost more, older buildings may need updating. Florida's SB 4-D changed the comparison entirely. Buildings that reach thirty years of age now face mandatory structural inspections and fully funded reserves — costs that did not exist in the underwriting before 2022. A buyer choosing between a 1965 Edgewater tower and a 2022 Brickell high-rise is no longer comparing square footage and finishes. They are comparing known structural costs against unknown ones.

Published October 2, 2026

When buyers ask me to compare a pre-1980 tower on Biscayne Bay with a newer building a few blocks south, the conversation used to focus on finishes, ceiling heights, and whether the kitchen had been updated. Since Florida enacted SB 4-D in 2022, I have a more important set of questions to answer first: has the building reached its milestone inspection threshold, what did that inspection find, and what is the reserve funding level today versus what it needs to be.

Those questions apply to every buyer of a unit in a building three or more stories tall. The answers look different depending on whether the building is forty years old or four.

What SB 4-D actually requires

Florida Statute 553.899 — the structural integrity statute at the center of SB 4-D — establishes two linked obligations for condominium associations in buildings three or more stories above ground.

The first is the milestone inspection. A building triggers this inspection when it reaches thirty years of age (measured from the date of the certificate of occupancy), or twenty-five years if the local enforcement agency requires the lower threshold for buildings within three miles of the coast. The inspection happens in two phases. Phase one is a visual examination of the building's accessible exterior and interior elements by a licensed engineer or architect. If phase one finds evidence of substantial structural deterioration, phase two is mandatory — a more invasive review that may require opening walls, extracting samples, or testing materials.

The second obligation is the Structural Integrity Reserve Study (SIRS), which must cover every component that affects structural integrity and safety and that has a deferred maintenance cost or replacement cost exceeding ten thousand dollars. The mandatory SIRS categories are: roof; load-bearing walls, primary structural members, and primary structural systems; floors; foundation; fireproofing and fire protection systems; plumbing; electrical systems; waterproofing and exterior painting; windows; and any other item the association determines to meet the cost threshold. Associations were required to have their first SIRS completed by December 31, 2024, with reserves funded to the level the study specifies.

The third change — and the one that has the most immediate effect on monthly fees — is the elimination of reserve waivers. Before SB 4-D, a condominium association could hold an annual vote of the unit owners to waive or reduce structural reserve contributions. That option closed on December 31, 2024 for associations controlled by unit owners. Associations may no longer vote to underfund the reserves required by the SIRS.

The exception: the pause provision

The legislature added a narrow relief valve. An association that needs to complete milestone-recommended repairs may suspend full reserve contributions for up to two consecutive budget years, provided it does so by December 31, 2028 and uses the savings exclusively to fund those repairs. This is not a waiver — it is a deferral of reserve funding only, and only when milestone repairs are actively underway.

A buyer who sees that an association is in its pause period should ask two questions: what specific repairs are being funded by the suspension, and when are those repairs scheduled for completion? A legitimate pause means the building is fixing something the milestone inspection identified and has a plan. An association that cannot answer both questions clearly is a different situation.

How this plays out for older Miami buildings

In Edgewater, the older bayfront inventory is well past the thirty-year milestone threshold. Bay Park (built 1961), Biscayne 21 (built 1964), and The Charter Club (built 1973) have all reached the point where milestone inspections are not upcoming events — they are required now. What buyers should verify for any building in this cohort is whether the phase one inspection has been completed, whether it triggered a phase two requirement, and what the SIRS currently shows for reserve funding levels and projected contributions.

The milestone inspection requirements for pre-2022 buildings had transitional deadlines: buildings that had already passed the thirty-year mark when the law was enacted had until December 31, 2024 to complete their phase one inspection. Buildings reaching thirty years between July 1, 2022 and December 31, 2024 had until December 31, 2025. An older building that cannot produce documentation of a completed phase one inspection is not in compliance with state law.

None of this means older buildings are wrong choices. Many of them have been well-maintained, completed their milestone inspections with clean findings, and have reserve funds that are fully or substantially funded. What the law has done is create a documentation trail that makes it possible to verify the claim. The board minutes and financials will show what the SIRS found, what the projected contributions are, and whether the association is on track. A seller who is reluctant to produce those documents before contract is a significant warning signal.

The special assessment exposure in older buildings

The most direct financial risk in an older building with deferred maintenance is the special assessment — a one-time charge levied on unit owners when reserves are insufficient to cover a major repair. Before SB 4-D, associations that regularly waived reserve contributions accumulated that risk invisibly. The elimination of the reserve waiver does not erase the accumulated shortfall in buildings that spent years underfunding their reserves.

A buyer purchasing a unit in a building that recently completed its SIRS and discovered significant reserve underfunding should expect either a rapid increase in monthly fees (as the association builds toward the required level) or a special assessment (if a repair is needed before the reserves can catch up). The reserve study will quantify the shortfall. The question is whether the current asking price reflects that liability.

What newer buildings look like under the same rules

A building completed in 2022 does not face a milestone inspection until 2052. Its reserve study obligations exist under the same statute, but the components are newer, the deferred maintenance is minimal, and the reserve funding requirement in the near term is lower. For a buyer comparing that building to a 1970s tower, the structural cost picture is materially different.

What newer buildings do carry is a different kind of uncertainty: developer transition risk. Under Florida law, the developer controls the condominium association for the first three years after the first unit is sold, or until ninety percent of the units are sold, whichever comes first. During that period, the developer sets the budget, controls the reserve contributions, and makes the spending decisions. Developers routinely set initial budgets at levels that keep monthly fees low and units more attractive to buyers. The reserves funded during the developer control period are often insufficient by the time unit owners take over the association.

When unit owners take over, one of the first tasks is an independent audit and a reserve study of their own. Those studies frequently show that the developer-era contributions left the reserves below where they need to be. The result is either a fee increase or a special assessment in the years immediately after transition — not because something is wrong with the building, but because the accounting did not fully reflect what future maintenance will cost.

A buyer purchasing in a building still under developer control, or in a recently transitioned building, should obtain the most recent reserve study, ask when the transition occurred, and ask what changes the unit owner-controlled association has made to reserve contributions since then.

The documents that answer the question

For any building three or more stories tall, the document review before making an offer should cover:

The milestone inspection report, or the association's written confirmation that the building has not yet reached its inspection threshold and the projected date it will. If the building is past thirty years and no report exists, the association is out of compliance with Florida law.

The current SIRS, completed after December 31, 2024. This document shows which components are covered, their remaining useful life, their projected replacement cost, and the current reserve funding percentage. A reserve funding level below the SIRS requirement — without a documented pause — is a compliance issue and a financial risk.

The most recent twelve months of board meeting minutes and financials. As covered in the guide to reading board minutes, this is where repair discussions, assessment votes, and reserve contribution decisions actually appear. The minutes will tell you whether the SIRS findings are being addressed or deferred.

For newer buildings under developer control or recently transitioned: the transition audit, the unit-owner association's first independent reserve study, and the current budget showing what reserve contributions look like after the developer left.

What buyers in Miami should ask their agent

The comparison between a new building and an older one in Miami is not settled by the condition of the lobby. The right questions are: what does the SIRS say, what does the milestone inspection say, how is the association funding the gap, and what is the pending assessment exposure if they are not funded yet. Those answers are in documents that every buyer has the right to review before going under contract.

Florida law — specifically HB 913 and the buyer disclosure rules — gives buyers the right to receive association documents within a specific window after contract execution, with the right to cancel based on what those documents show. That right exists for a reason. In the current environment, using it is not optional due diligence. It is the core of the purchase decision.

Frequently asked questions: new vs. older condo in Miami

How do I find out if a building has completed its milestone inspection?

Ask the seller or the listing agent for the milestone inspection report. If the building is thirty or more years old and the seller cannot produce the report, request it through the condominium association directly. Phase one inspections by a licensed engineer or architect are required to be filed with the local building official, so the city or county building department may also have a record of it. A building that has not completed its inspection past the statutory deadline is not in compliance, and that is material information for any purchase.

Can an association still vote to reduce reserve contributions after SB 4-D?

No. As of January 1, 2025, unit-owner-controlled associations cannot vote to waive or reduce the reserve contributions required by the SIRS. The reserve waiver that was common practice before SB 4-D is no longer available for structural and safety-related components. The only relief valve is the narrow pause provision for associations actively funding milestone-required repairs, available through December 31, 2028.

What is the pause provision and how do I know if a building is using it?

The pause provision allows an association to suspend full SIRS reserve contributions for up to two consecutive budget years, provided those years fall before December 31, 2028 and the money is used exclusively to fund milestone-inspection-required repairs. It should appear in the association's budget, in the board minutes approving it, and in the reserve study documentation. If an association is in a pause period, ask what specific repairs are being funded and when they are expected to be completed.

Is a new building safer from special assessments than an older one?

Not necessarily. A new building has newer components and a longer runway before major replacements are needed, which does reduce the near-term special assessment risk from structural causes. But new buildings under developer control often have underfunded reserves because developer budgets are set to keep fees competitive during the sales period. After the unit owners take over, a reserve study frequently reveals a shortfall that requires either a fee increase or a special assessment to address. The risk is different, not absent.

What does "reserve funding percentage" mean in a SIRS, and what is an acceptable number?

The reserve funding percentage is the ratio of the current reserve balance to the amount the association would need if it were replacing every covered component today, adjusted for remaining useful life. A building that has set aside exactly what its pro-rated share of future replacements requires is considered fully funded at 100%. Florida's new requirement is that reserves be funded to the level the SIRS specifies, which accounts for the specific replacement schedule of that building's components. There is no universal "acceptable" percentage — the SIRS for that specific building, with its specific component ages and costs, sets the target. A building significantly below its own SIRS target, without a documented pause, has a gap that someone will eventually need to pay for.

If I buy in an older Miami condo, will my fees definitely go up?

Not necessarily, but it depends on how the association has managed its reserves historically. A building that was well-funded before SB 4-D, completed a clean milestone inspection, and completed its SIRS on schedule may need only modest adjustments. A building that spent years waiving reserve contributions and is now trying to reach the required level will likely see significant fee increases, a special assessment, or both. The SIRS and the current reserve balance tell you which situation you are walking into.

Stefania Riverin, Licensed Real Estate Sales Associate · FL SL3620067 · Brokered by NB Elite Realty · 1101 Brickell Ave, Miami, FL 33131 · Equal Housing Opportunity. General information about Florida condominium law; not legal advice. SB 4-D requirements are detailed in Florida Statute 553.899 and Florida Statute 718.112; specific compliance questions should be directed to a licensed Florida attorney or a licensed community association manager familiar with the current rules.