Neighborhood
Casa Marina
Key West, Florida US
Casa Marina, Key West, Florida is a premium, walkable market with pricing in line with Key West and about 310% above Florida, a gross yield of 3.3, and prices up 10.7% over the past year. Its main strength is walkability of 88, while the Red Flag score of 56 points to moderate overall risk. Education is in the 66th percentile.
AI Summary•Updated May 2026
Area
0.74 mi²
ZIP Code
33040
County
Monroe County
State
Florida
Redfin — median sale & volumeZillow ZORI — asking rentFEMA National Risk Index v1.20OpenStreetMap — POIFBI UCR — state crimeEPA — radon zonesWashU ACAG — satellite PM2.5EPA FRS / BTS — hazard screeningUS Census ACS / TIGER 2024
Verified Price · Median Sale
$1,267,124
YoY+10.7%
Gross Rental Yield
3.3%
Listed rent · ZORI annualized
Red Flag Index
Moderate
56 / 100
Walkability Score
88
OpenStreetMap POI density · national percentile
Education Score
66 / 100
Pre-pandemic SEDA (2018/19) · district proxy
AI Score
48
DistrictScore attractiveness · national model
Casa Marina Property Prices & Rental Yield
Verified Redfin sale data and Zillow ZORI asking rent for Casa Marina, Key West.
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Sign in to view — freeMarket Economics Snapshot
May 2026| Metric | Value | YoY |
|---|---|---|
| Median Sale Price | $1,267,124 | +10.7% |
| Price / Sq Ft (Verified) | $952/sqft | +15.1% |
| Asking Rent (Median) | $3,506/mo | -1.1% |
| Gross Rental Yield | 3.3% | — |
| Liquidity Score | 42 / 100 | Moderate |
| Homes Sold (Period) | 173 | +46.6% |
Is Casa Marina Safe? Natural-Hazard Risk
FEMA National Risk Index composite across eight hazards, plus inherited Florida crime context.
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Sign in to view — free What Stands Out AI Insight
Appreciating market — +10.7% sale-price YoY
Highly walkable neighborhood — score 88/100
Active transaction volume — 173 homes sold last period
Dense amenities — 62 dining & 7 grocery options nearby
Flood risk is Very High (100/100)
Hurricane risk is Very High (100/100)
Insights are generated from Casa Marina's live DistrictScore metrics.
Casa Marina Environment & Safety
Satellite PM2.5 air-quality history, FBI UCR crime trend (Florida-level, the finest official aggregation), EPA radon potential and point-source hazard screening.
Air Quality — PM2.5
2015–20244.2 µg/m³ Meets WHO guideline+40.7% since 2015
EPA 9WHO 5
20152024
Annual mean fine-particle (PM2.5) concentration at the Casa Marina centroid, satellite-derived (ACAG). References: WHO guideline 5 µg/m³ · EPA annual standard 9 µg/m³. Latest year ranks worse than 2% of U.S. neighborhoods.
Florida Crime Trend
FBI UCR20132024
All crimes / 1k
Violent / 1k
| Year | Crimes / 1k | Violent / 1k | YoY |
|---|---|---|---|
| 2024 | 16.9 | 2.7 | -4.5% |
| 2023 | 18.0 | 2.9 | -2.3% |
| 2022 | 19.0 | 2.9 | +4.4% |
| 2021 | 18.6 | 3.4 | -13.5% |
| 2020 | 21.5 | 3.8 | -13.7% |
| 2019 | 25.2 | 3.8 | — |
Reported at the state level — the finest official US crime aggregation; Casa Marina inherits the Florida figures.
Radon Potential
EPAZone 3
Zone 3 — Lowest potential · Casa Marina
EPA radon zones estimate indoor radon potential county-wide (Zone 1 highest, Zone 3 lowest). Testing is recommended in all zones.
Environmental Hazards
EPA / BTSIndustrial odor2 nearbyVery High
Aviation noise46 dBVery Low
Point-source screening near Casa Marina: EPA Superfund National Priorities List & Facility Registry (2026), BTS aviation noise (2020, 24-hour average level). Superfund shows distance to the nearest listed site; odor shows detected sources within the screening radius. Only detected sources are listed; the bar shows severity vs. all U.S. neighborhoods.
Walkability & Amenities in Casa Marina
Amenity density and pedestrian access from OpenStreetMap points of interest.
Walkability & Amenities
OpenStreetMap POI88
Very Walkable
Walkability Score
7
Grocery
62
Dining
5
Schools
0
Universities
0
Hospitals
0
Pharmacies
15
Parks
2
Rail Transit
0
Coworking
POI counts are amenities within Casa Marina's boundary plus a 400 m walk buffer. Rail transit excludes bus stops.
Casa Marina vs Key West vs Florida
How Casa Marina benchmarks against its city and state medians.
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Compare Casa Marina against Key West and Florida medians — free with a DistrictScore account.
Sign in to view — freeBuying Property in the US as a Foreigner
Federal & Florida tax facts for non-resident buyers, plus the latest local market news.
Buying as a Foreigner
US Tax & OwnershipApplies to everyone7
Capital Gains (Federal)
Long-term capital gains taxed federally at 0/15/20%, plus a 3.8% Net Investment Income Tax on higher incomes (2026).
Property Tax
Property tax: ~0.76% average effective rate (statewide average; set and collected locally).
State Income Tax
No state income tax — rental income is not taxed at the state level.
State Capital Gains
No state capital gains tax.
Transfer Tax
Real estate transfer tax: documentary stamp $0.70 per $100 ($0.60 in Miami-Dade).
Assessment Cap
Save Our Homes caps homestead assessment growth at 3%/CPI; reassessed to market value on sale.
Mansion Tax / Rent Control
No statewide mansion tax or statewide rent control.
US citizens & tax residents8
Primary-Home Exclusion
Selling your main home: exclude up to $250k of gain (single) / $500k (married) if you owned and lived there 2 of the last 5 years.
1031 Like-Kind Exchange
A 1031 like-kind exchange defers capital gains tax on investment property; 45 days to identify, 180 to close. Real estate only.
Depreciation Recapture
Residential rentals depreciate over 27.5 years; on sale, recaptured depreciation is taxed up to 25% (Section 1250).
Mortgage Interest Deduction
Mortgage interest is deductible on up to $750k of home debt. The SALT cap rose to $40,000 for 2025-2029 (reverts to $10k in 2030).
Opportunity Zones
Opportunity Zones are now permanent (2025): reinvested capital gains get deferral plus a basis step-up, and are tax-free after 10 years.
Rental Income (Resident)
Rental income is reported on Schedule E; passive-loss rules (Section 469) limit deducting rental losses against other income.
Homestead Exemption
Homestead: up to $50,000 off taxable value, plus unlimited protection from most creditors.
Senior & Veteran Exemptions
Extra $50,000 senior exemption plus property-tax discounts for veterans.
Foreign buyers (non-residents)6
FIRPTA (Foreign Sellers)
FIRPTA: the buyer withholds 15% of the gross sale price when a nonresident sells US property. It is an advance deposit, not the final tax.
Non-Resident Capital Gains
Nonresident sellers pay US capital gains tax (generally 15-20%) on the net gain via Form 1040-NR; FIRPTA withholding is credited.
Non-Resident Rental Tax
Nonresident rental income is taxed at 30% of gross by default, or on net income at graduated rates via a Section 871(d) election (W-8ECI).
Estate Tax (Non-Resident)
Nonresidents get only a $60,000 US estate-tax exemption (vs $13.99M for residents); US property above it is taxed up to 40%. Treaties may help.
ITIN Requirement
Nonresidents without an SSN need an ITIN (Form W-7) to file US tax returns, claim FIRPTA refunds, and report rental income.
Foreign Ownership Restrictions
SB 264 restricts buyers from 7 countries of concern (incl. China) from residential property near sensitive sites. Verify first.
Talk to a US real-estate tax advisor
FIRPTA, ITIN & Florida property-tax guidance for foreign buyers
Casa Marina Real Estate FAQ
Casa Marina, Key West, Florida shows a mixed investment profile. Pricing is in line with Key West and about 310% above Florida, gross yield is 3.3, and prices rose 10.7% over the past year. The Red Flag score is 56, with walkability of 88 and education in the 66th percentile.
Neighborhoods near Casa Marina
Compare Casa Marina with nearby neighborhoods in Key West.
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