MARINA
Homes for Sale in Key Colony, FL
True comps, carrying-cost math, and listings before the portals.
Marina in Key Colony sits inside Monroe County's Florida Keys market, where scarcity of buildable land and the logistical complexity of island ownership underpin pricing at every level. The median closed price of $750,000 reflects that structural constraint — this is not a market where values are driven primarily by interior finishes or lot size alone, but by the simple fact that Keys addresses are finite and in persistent demand from buyers who want water-access real estate.
A median of 79 days on market tells a deliberate story: sellers here are not under pressure to accept the first offer, and buyers are not competing in a frenzy. That pace gives a qualified buyer time to perform real due diligence — environmental, insurance, and structural — which is essential in a coastal Monroe County community. Only 3 closings in the most recent window means this is a thin, illiquid market; individual transactions move the needle, and comparable data is sparse. Price carefully and manage expectations on both sides of the table.
The 60-Second Overview
MARINA market snapshot (as of July 27, 2026): the median sale price is about $750K, and a median 79 days on market for closed sales.
Marina is a small, water-oriented community in Key Colony, Monroe County — part of a broader Florida Keys market defined by geographic scarcity, elevated insurance and carrying costs, and a buyer pool that self-selects for commitment to coastal living. The median price sits at $750,000, with transaction volume so limited that each sale carries outsized weight in any comparative analysis.
Who MARINA is best for.
Best for
- A buyer targeting a water-access Keys property as a primary or secondary residence with a multi-year hold horizon and no requirement to resell quickly.
- A cash or well-capitalized buyer who has already modeled Monroe County insurance costs and is not relying on financing assumptions built on mainland comparables.
- A buyer whose goal is owning an irreplaceable coastal address in a low-inventory market and who values scarcity over short-term liquidity.
Probably not for
- A buyer expecting to purchase at the median and resell at a predictable premium within a short window — transaction volume is too thin to support that assumption.
- A buyer whose monthly budget is stretched to reach the $750,000 median price point without accounting for flood insurance, wind insurance, and ongoing coastal maintenance.
- A buyer seeking a high-turnover investment strategy — with only 3 recent closings in the data window, this market does not support frequent repositioning.
Price History: What Homes Here Have Actually Sold For
Median sale price over the trailing 12 months ending July 27 of each year, from record-level floridakeys closed sales. Same methodology as every appreciation figure on this page: the 2026 point ($750K) IS the median in the snapshot above.
Windows contain 0 to 7 sales each (3 in the current window); every figure carries its sample size, and thin markets swing on single closings. Listing data provided by Florida Keys MLS, Inc. Information is deemed reliable but is not guaranteed by the MLS to be accurate. Deemed reliable but not guaranteed.
The MARINA buying strategy.
If we were buying in MARINA today, this is the order of operations we would run for our clients.
Underwrite the condition first. Price the roof, HVAC, and systems honestly before judging any list price; condition swings value here more than square footage alone.
Match the home to real comps. Recent sales of similar condition and lot, not the asking price, tell you what a home is worth.
Move deliberately, not desperately. Neither side has a decisive edge, so a well-prepared, fairly-priced offer wins without overpaying.
Line up financing and inspection early. A pre-approval and an inspection plan let you act fast and negotiate from evidence.
Keep an agent in your corner. The listing agent works for the seller; we represent you and prepare a hand-built valuation before any offer in MARINA.
A thin market in a constrained island setting
With only 3 closings in the measured window, Marina does not behave like a high-volume suburban subdivision. Pricing is highly condition-driven and sensitive to individual property characteristics — dock access, elevation, flood zone designation, and the current state of wind and flood insurance all carry more weight than square footage alone. The $750,000 median is a reference point, not a reliable ceiling or floor, because the spread on any handful of transactions in a market this size can be wide.
The 226% appreciation recorded since 2012 documents a long run of value growth, but past performance in a supply-constrained market is not a forecast. What it does confirm is that Keys real estate has historically reflected the irreplaceable nature of the inventory. Buyers entering at current pricing need to underwrite the full cost of ownership — insurance premiums, flood mitigation, and maintenance in a salt-air environment — before comparing this asset to mainland alternatives.
The location and the amenities are priced into every listing in MARINA. The deal is won or lost on condition, the comps, and the renovation math.
Why work with Momentum here
Thin markets punish buyers and sellers who rely on automated data or brokers unfamiliar with the nuances of coastal Monroe County ownership. Momentum brings a transaction-level read on what comparable sales actually reflect, and we will flag when a listing is priced against a comp that does not transfer — different flood zone, different dock configuration, different insurance exposure. In a market where 3 closings define the recent record, that judgment is the difference between a sound purchase and an expensive mistake.
MARINA in 15 seconds.
HOA, CDD & Fees
- Mandatory HOA — confirm current dues
- Any club/amenity membership is billed separately
Confirm the current HOA dues, exactly what they cover, and any CDD bond or special assessment for a specific address before you offer.
Tools for a MARINA buy.
Free calculators to pressure-test the real cost before you tour.
Selling here is won on condition and pricing to real comps, not an automated estimate. The right number comes from closed MARINA sales matched to your home.
Price it to the comps and condition, not an automated estimate.
If you are thinking about selling in MARINA, the right list price comes from recent comparable sales matched to your home's condition and location, not an automated estimate.
What is your MARINA home worth?
Get a no-obligation home value based on real comparable sales in MARINA, not an automated guess. Tell us about your home and we will personally prepare your numbers and a pricing strategy. No obligation, no spam.
See homes for sale in MARINA on the map →
Frequently Asked Questions
What is the median home price in MARINA?
How long do homes in MARINA take to sell?
Have MARINA home prices gone up?
Who is the best real estate agent for MARINA?
How do I find a top Key Colony real estate agent who knows MARINA?
Can Momentum Realty connect me with an agent for MARINA?
Should you buy in MARINA?
An honest fit check. We will tell you when it is not your community.
Data sources & freshness
| Community market stats | floridakeys closed sales, 12-month windows ending July 27, 2026 |
| Historical depth | Closed-sale records back to 2009 (42 transactions analyzed) |
Verify the primary sources yourself: Florida DOR · U.S. Census · FEMA flood maps · Citizens Property Insurance.
Momentum Research figures are our own analysis of floridakeys records; MLS data is deemed reliable but not guaranteed. Methodology: how Momentum market scores are computed. Market metrics describe homes for sale and recent sales, not residents.
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The numbers on this page move markets in the aggregate. The number that matters to you is what a buyer pays for your address. Momentum sells for 1.25% above the floridakeys member average and 8 days faster, and we’ll price yours against live your area comps.
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More Key Colony & The Florida Keys & Monroe County guides
Compare before you commit - every guide covers pricing, HOA/CDD, insurance posture, and fit. Browse all of The Florida Keys & Monroe County or the full Neighborhood Finder.