Tampa is the metro where insurance pricing currently does more underwriting damage than property tax, and that's saying something in Florida. The 2022-2024 hurricane sequence (Ian, Idalia, Helene, Milton) plus the broader US carrier hardening cycle has pushed property insurance premiums on small multifamily to levels that make 2018 underwriting look like fiction.
If you're buying multifamily in Tampa Bay, the insurance line item is the single largest swing factor. Property tax is the second.
Insurance is the deal
For Class B and C multifamily in Hillsborough County, expect insurance premiums of $1,500-$3,000 per door per year, sometimes more. For Class B/C inside the surge zone or in older masonry buildings without modern roof and wind mitigation, $2,500-$5,000 per door is not unusual.
Compare that to the $400-$700 per door that most underwriting templates assume. The gap is the deal.
Three rules:
Get a real quote before bidding. Don't rely on the seller's current premium (theirs may be grandfathered or about to non-renew). Don't rely on the placeholder in your underwriting template. Call a Florida-specialized commercial insurance broker (Brown & Brown, AmRisc, Citizens-eligible markets) and get a real quote in the building's name. Mention windstorm separately if the carrier splits coverage.
Model 15-25% annual insurance inflation. Through 2026, the carrier market remains in a transition. Even if the worst is behind us, repricing has not fully worked through portfolios. Assume your renewal will be higher every year.
Citizens of last resort. If commercial carriers won't write, Citizens Property Insurance (the state-backed insurer of last resort) may. But Citizens has both eligibility caps and depopulation programs that move properties off coverage into private carriers without notice. Plan for both.
Florida non-homestead 10% cap
Florida caps non-homestead assessed value growth at 10% per year. This is NOT Save Our Homes (which is 3% and homestead-only); this is the separate "non-homestead cap" enacted in 2008.
Practical implication: when you close, Hillsborough County will reassess the property toward your sale price, but limited to 10% per year. If you bought 50% above current assessed, you'll see the catch-up over roughly 5 years.
Worked example: $2.4M purchase, current assessed $1.4M, combined millage 2.0%.
- Year 1 tax: $1.54M × 2.0% = $30,800
- Year 2: $1.69M × 2.0% = $33,880
- ...
- Year 6: catches up to $2.4M. Tax = $48,000
Broker-quoted tax: $1.4M × 2.0% = $28,000. By year 3 you're paying 30% more. By year 6, 70% more. Full tax modeling guide.
FEMA flood zone is half the metro
Coastal Hillsborough and Pinellas exposure is meaningful. South Tampa, the entire Pinellas peninsula, parts of north Hillsborough, and significant portions of Pasco are in AE or higher zones. Tampa Bay is one of the highest-storm-surge-risk urban areas in the country per FEMA modeling.
Two rules:
Pull the FEMA map for every address. Don't trust the seller's assertion. Zones have been redrawn after recent events.
Combine flood insurance with windstorm. Standard property insurance excludes both flood and windstorm in Florida. Flood is its own policy (NFIP or private), windstorm is its own line on commercial property policies. For multifamily in surge zones, both need to be in the underwriting.
Full guide to FEMA flood zone checks.
Permits through Hillsborough and City of Tampa
Hillsborough County multifamily permits go through HillsGovHub. City of Tampa permits go through the City of Tampa Construction Services Center. Make sure you're searching the right portal based on where the property sits.
Cross-reference broker renovation claims against permit records. The 40-year recertification rule that applies in Miami-Dade and Broward does NOT apply in Hillsborough or Pinellas, but post-Surfside, lender attention to deferred maintenance has tightened anyway. See the full guide to checking permit history.
The "below replacement cost" trap
A common Tampa pitch: "below replacement cost, given current construction prices and insurance restrictions on new builds." This is sometimes true and sometimes not.
What's true: post-2022, new multifamily construction in coastal FL is constrained by insurance availability, lumber and labor inflation, and a more restrictive entitlement environment. New deliveries are slowing.
What's potentially misleading: if the existing building is older, in a flood zone, and carrying $3,000+/door in annual insurance, the all-in cost of ownership might not actually be below the all-in cost of new construction once you factor lifetime insurance escalation. Run the all-in math, not the spot-price comparison.
The standard checklist still applies
The Tampa-specific items above sit on top of the general pre-offer due diligence checklist. Permit history, code violations, demographics trajectory, debt service stress test, all still matter.
Insurance is the dominant local consideration. Get the real quote. Everything else follows.
Or get the Tampa research done for you
DealBrief pulls Hillsborough or Pinellas assessment, current combined millage, sale history, permit records, FEMA flood zone, demographic trajectory, and the full debt service scenario grid for any Tampa Bay multifamily address. Your first report is free.