What Is a Cap Rate and Why Does It Matter for Miami Multifamily?
A capitalization rate (cap rate) is the ratio of a property's Net Operating Income to its value or purchase price. It's the primary valuation metric for income-producing real estate — the number that tells you how much income a property generates relative to what you paid for it.
The formula: Cap Rate = Net Operating Income ÷ Property Value (or Purchase Price)
A property generating $80,000 in NOI purchased for $1,000,000 has an 8% cap rate. A property generating $80,000 in NOI in a market where buyers are paying $1,600,000 for that income stream trades at a 5% cap rate.
Cap rates move inversely to property values — higher cap rates mean lower prices relative to income (more yield, more risk), lower cap rates mean higher prices relative to income (less yield, more demand). Understanding where Miami's different submarkets sit on this spectrum is fundamental to deal analysis.
Miami Multifamily Cap Rates by Submarket — 2026
| Submarket | Cap Rate Range | Why | Value-Add Strategy |
|---|---|---|---|
| Wynwood / Edgewater | 4.0–5.5% | Global investor demand, T6 density upside | Zoning/density play, not current income |
| Brickell / Coconut Grove | 3.8–5.0% | Trophy assets, institutional pricing | Minimal — priced for appreciation |
| Little Havana / Allapattah | 5.5–7.0% | Urban workforce, below-market legacy rents | Rent normalization over 2–3 years |
| Kendall / South Miami | 5.5–7.0% | Suburban professional demand, older stock | Unit renovation → rent increase |
| Hialeah | 5.5–7.0% | Dense workforce demand, tight supply | Cosmetic renovation → market rents |
| Cutler Bay / Palmetto Bay | 6.0–7.5% | Suburban south Dade, growing demand | Value-add with appreciation upside |
| Homestead / South Dade | 6.5–8.5% | Highest yield corridor, ARB + workforce demand | Best value-add returns in Miami-Dade |
| Goulds / Naranja / Princeton | 7.0–9.0% | Hyperlocal, minimal competition | Deep value-add, first mover advantage |
The Cap Rate You Should Trust vs. the One Sellers Advertise
The most important skill in Miami multifamily underwriting is distinguishing between a real cap rate and an advertised cap rate. Sellers and their brokers routinely present cap rates calculated on optimistic or outright misleading NOI figures. Here are the most common manipulations:
- Pro forma rents, not actual: Advertising cap rate based on "market rents if all units were renovated" rather than actual current rents. The cap rate on actual current income is the only number that matters at acquisition
- 0% vacancy assumption: Many seller pro formas show 0% vacancy even on buildings with documented vacancy history. Actual market vacancy for South Dade properties is 5–8%
- Current-owner insurance cost: Sellers show their current insurance premium — which may reflect a policy written before South Florida's insurance market crisis. Current market insurance for a Miami apartment building can be 2–3x the seller's current bill
- Excluded management fee: Owner-managed buildings often exclude any management cost from the expense side. Budget 8–10% of gross income for professional management
- No maintenance reserve: Seller P&Ls often show only actual maintenance costs paid — which in a deferred building may be near zero. Actual maintenance reserve should be $150–200/unit/month
Advertised: 8-unit building, $1,100,000, "7.5% cap rate" on $82,500 stated NOI
My reconstruction: Actual rents $15,600/month ($187,200 gross) → 7% vacancy = -$13,104 → Effective gross $174,096 → Insurance at current market rates -$28,000 → Property taxes at purchase price -$22,000 → Management 8% -$13,928 → Maintenance reserve $1,600/unit/yr -$12,800 → True NOI = $97,368 → True cap rate = 8.85%
Run your South Florida investment through the Investor Quiz and get a personalized deal strategy — which markets have the margins, which financing path fits your capital, and which renovation scope is realistic for the numbers.
In this case the seller's NOI was actually understated because they were using below-market rents. After reconstruction the deal improved. But equally — a seller showing a "7.5% cap" can easily reconstruct to 4.5% after correcting expenses. Never trust an advertised cap rate. Always reconstruct.
