An email arrives from your building's association in Miami. It isn't the usual monthly dues: it's a special assessment — an extraordinary charge — of tens of thousands of dollars, with a due date. Or it hasn't arrived yet, but you've heard one is "coming" in your tower and you don't know how much or when. Either way, the question is the same: what is this, why is it happening, and what does it mean for the property you bought as an investment.
This note explains it with data and without drama. It's a concrete phenomenon, with an identifiable legal cause, that now touches a large share of Miami-Dade condominiums. And one point is worth having clear from the start: this charge is paid by the owner, not the tenant.
What a special assessment is
A special assessment is a charge the homeowners association (the HOA) levies on owners on top of the monthly dues, to fund a large, one-off expense the building's reserves can't cover. It isn't the HOA going up: it's a separate charge, usually for a major project — concrete restoration, roof replacement, waterproofing, facade or pool-deck repair.
The full cost of the work is split among all units, almost always in proportion to each one's ownership share. It can be paid in a lump sum or over 12 to 24 months. The condo board approves it, and once approved it's mandatory: it isn't optional and it isn't negotiated unit by unit.
Why it's happening now: the SB 4-D law
The trigger was the collapse of the Champlain Towers South in Surfside, in June 2021. A year earlier, a reserve report had warned that the association held just 6.9% of the recommended funds for the repairs the building needed — roughly US$707,000 saved against the US$10.3 million advised — as CNN reported. Draining reserves like that was, until then, common and legal practice in Florida.
In response, the state passed SB 4-D in 2022. It changed the rules for buildings three stories or taller: it mandates milestone inspections (structural inspections at 30 years, 25 on the coast) and a Structural Integrity Reserve Study (SIRS) that had to be completed by December 31, 2025. And the fundamental change: as of January 1, 2025, associations can no longer vote to waive the reserves for structural components — something they used to do routinely to keep dues artificially low (Florida DBPR).
The result is arithmetic: years of underfunded reserves have to be caught up all at once, and that cost lands on today's owners as higher dues and special assessments. A later law, HB 913 (in effect since July 1, 2025), offered some relief — it extended the SIRS deadline and allows pausing contributions for up to two years to prioritize urgent repairs — but it does not remove the underlying obligation (Florida Governor's Office).
What they actually cost
The ranges the market is seeing, based on reserve studies and assessments already issued:
- Minor repairs: US$5,000 to US$15,000 per unit, typically paid over 12–24 months (2026 market analysis).
- Concrete restoration, waterproofing or roof: US$30,000 to US$75,000 per unit.
- Some older Brickell and Edgewater towers: charges of over US$100,000 per unit when the work combines roof, concrete and facade.
These aren't hypothetical figures. At 1060 Brickell, two towers barely 16 years old approved a US$21 million special assessment after a SIRS flagged facade, roof and pool-deck work; some owners received individual bills of more than US$40,000, and in certain cases up to US$110,000, as NBC 6 Miami reported. A relatively new building is not immune.
The point almost no one tells you: the owner pays
Here's what matters for anyone who invested. The tenant pays fixed rent, set in the lease. The special assessment — like the HOA, the insurance and the property tax — is an owner's cost. There's no way to pass it to the tenant mid-lease: you sign that check, whether you're living in Mexico City, Bogotá or Santiago.
And if the unit is vacant, it's worse: the charge runs anyway, with no rent to offset it. A US$50,000 special assessment can erase several years of the property's cash flow in a single stroke. That's why it isn't an administrative footnote: it's a central variable in the real return on your investment. For the full context on why dues and insurance climbed too, it's worth reading our note on why Miami HOA fees have surged.
What to do if it arrived (or you fear it will)
The first thing is not to decide on a feeling, but on numbers. Before deciding whether it's better to hold the property or sell it, you need to know three concrete things:
- What your unit is worth today in the real market — not what you paid, nor the portal price.
- What it actually costs you per year: HOA + insurance + tax + the prorated special assessment.
- What's selling in your building and at what price, because a building with a pending assessment sells differently than a clean one.
With those three data points, the decision stops being a hunch. Sometimes it's worth holding and waiting; sometimes the number clearly says it's time to exit. That's the first step I can give you at no cost: a valuation of your Miami property with public-record data and real comparables from your tower. And if you decide to sell as a foreign owner, I handle the whole process remotely — including the FIRPTA withholding applied to non-resident sellers — in your language, without you having to travel.
Frequently asked questions
What is a special assessment on a Miami condo?
It's an extraordinary charge the association (HOA) levies on owners, on top of the monthly dues, to fund a large repair the reserves don't cover: concrete, roof, waterproofing or facade. It's split among the units and usually paid over 12–24 months or in a lump sum.
Why are so many hitting now?
Because of SB 4-D (2022), passed after the Surfside collapse. It requires structural inspections and real reserve funding, and as of January 1, 2025 bars associations from voting to waive them. Catching up after years of empty reserves generates the assessments.
How much can it cost per unit?
From US$5,000–US$15,000 for minor repairs to US$30,000–US$75,000 for concrete or roof, and over US$100,000 in some older Brickell and Edgewater towers. At 1060 Brickell bills topped US$40,000.
Who pays, the owner or the tenant?
The owner. The tenant pays fixed rent under the lease; the special assessment, like the HOA, insurance and tax, is absorbed by the owner.