Aerial view of Fontaine Lake

Fontaine Lake
Homes for Sale in Plantation Key, FL

All 90 homes for sale in Plantation Key, FL · median $1,975,000 · 49 homes for sale in 33070 · Monroe County homes for sale

Community in Plantation Key · Monroe County · ZIP 33070
Median sale $1.49M
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True comps, carrying-cost math, and listings before the portals.

Built fromLive Florida Keys MLS data20 years of closingsUpdated twice daily

Over the 12 months ending 2026-09-20, 4 recorded sales closed at a median of $1,487,500, a median 79 days on market, sellers accepting 93% of original asking. At the median price and Monroe County's FY2025-26 rate of 8.816 mills, annual property tax runs about $13,110 ($12,770 with the full homestead exemption).

Live · Fontaine Lake Housing Pulse Florida Keys MLS + public records Analysis by Momentum Realty · $3.5B+ sold · 10,000+ customers served · Top 1% in Florida (RealTrends)
Price
$1.49M
Median sold · 12 mo
93.5%
Sale vs ask
Monroe median: 96.7%
Tempo
80days
Median DOM · closed
11 days at the 2023 low
4
Sold · last 12 mo
10-yr average: about 2 a year

Nearby homes for sale

No active listings inside FONTAINE LAKE right now. These are the 6 closest homes on the market, by straight-line distance from the community's center; some may sit just outside its boundary.

148 Riviera Drive
$3M · 0.0 mi away
3 bd · 3 ba
148 Riviera Drive
Listed by Coldwell Banker Schmitt Islamorada
115 Fontaine Drive
$650K · 0.1 mi away
2 bd · 2 ba
115 Fontaine Drive
Listed by Berkshire Hathaway HomeServices Keys Real Estate - Islamorada
200 Wrenn Street #606
$700K · 0.2 mi away
2 bd · 2 ba
200 Wrenn Street #606
Listed by Berkshire Hathaway HomeServices Keys Real Estate - Islamorada
200 Wrenn Street #APT 510
$625K · 0.2 mi away
2 bd · 2 ba
200 Wrenn Street #APT 510
Listed by Ocean Sotheby's International Realty
200 Wrenn Street #PH 701
$1000K · 0.2 mi away
3 bd · 2 ba
200 Wrenn Street #PH 701
Listed by LoKation Real Estate - Key Largo
147 Gardenia Street
$1.45M · 0.3 mi away
3 bd · 2 ba
147 Gardenia Street
Listed by Taylor & Assoc. RE, Inc.

Listing data from the MLS feeds named on each listing page; deemed reliable but not guaranteed. Refreshed nightly.

The 60-Second Overview

Fontaine Lake market snapshot (as of September 20, 2026): the median sale price is about $1.49M, and a median 80 days on market for closed sales.

In ZIP 33070 (Plantation Key), 265 homes closed in the last 12 months at a median of $905K ($290/sq ft), up 8.9% year over year, with a median 86 days on market. See the live ZIP 33070 housing market and the Monroe County market.

Windows contain 0 to 4 sales each (4 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.

Median sale price · trailing 12 mo
$500K$1M$1.5M20122014201620182020202220242026
Median days on market · closed sales
010020020122014201620182020202220242026
11 days at the 2023 low; 80 now.
Sale price vs original ask · median
80%90%100%20122014201620182020202220242026
93.5% now vs Monroe 96.7%.
Homes sold per 12-mo window
02420122014201620182020202220242026
0 to 4 a year; 4 in the current window.
How much local inventory is already under contract

14% of homes for sale in ZIP 33070 are already under contract (under contract ÷ under contract + active listings) — a read on how much of the available inventory buyers have already claimed. Source: MLS data (2026-09-20).

Housing distress & ownership in FONTAINE LAKE, Plantation Key

Who owns here, how much is not owner-occupied, and how much for-sale inventory is under distress.

Active inventory in distress
0.0%
0 of 12 listings
Distress share trend — 0.0% now (2026-09-14 → 2026-09-19)

Source: Momentum Realty Research. Ownership & parcels from the FL DOR 2025 tax roll; distress from MLS active-listing status/remarks; price from MLS closed sales. 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.

If we were buying in Fontaine Lake today, this is the order of operations we would run for our clients.

1

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.

2

Match the home to real comps. Recent sales of similar condition and lot, not the asking price, tell you what a home is worth.

3

Move deliberately, not desperately. Neither side has a decisive edge, so a well-prepared, fairly-priced offer wins without overpaying.

4

Line up financing and inspection early. A pre-approval and an inspection plan let you act fast and negotiate from evidence.

5

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 Fontaine Lake.

A closer look at the Fontaine Lake market

Homes in Fontaine Lake trade around a median of $1.49M, where condition and lot do more to set the final number than the asking price does.

The location and the amenities are priced into every listing in Fontaine Lake. The deal is won or lost on condition, the comps, and the renovation math.

Jon Brooks · Founder, Momentum Realty

HOA, CDD & Fees

A note on who we are: Momentum Realty is a real estate brokerage. We are not the Fontaine Lake homeowners association, its management company or its developer, and we cannot help with dues, gate access, violations, amenity bookings or association documents. To reach the association, check your closing package, the recorded declaration at the county clerk, or search the association’s name at sunbiz.org for its registered agent. Call or message us to buy or sell a home in Fontaine Lake.
In short
  • HOA status not on record. Verify any dues before you offer
  • 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.

The takeaway

Selling here is won on condition and pricing to real comps, not an automated estimate. The right number comes from closed Fontaine Lake sales matched to your home.

What is your Fontaine Lake home worth?

Get a no-obligation home value based on real comparable sales in Fontaine Lake, 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 all homes for sale in Plantation Key →

Real comps, not an automated estimate.

Frequently Asked Questions

What is the median home price in Fontaine Lake?
The median sale price in Fontaine Lake was $1.49M over the 12 months ending September 20, 2026 (4 closed sales, Florida Keys MLS).
How long do homes in Fontaine Lake take to sell?
Homes that closed in the 12 months ending September 20, 2026 took a median 80 days on market (4 sales, Florida Keys MLS).
Who is the best real estate agent for Fontaine Lake?
The best agent for Fontaine Lake is one who actively works Plantation Key and knows the community's pricing, fees, and current inventory. Tell us what you're looking for in the form on this page and Momentum Realty will match you with a local specialist for Fontaine Lake.
How do I find a top Plantation Key real estate agent who knows Fontaine Lake?
Share a few details in the form on this page. Momentum Realty has 320+ agents and more than $3.5B in closed sales, and we'll connect you with one who knows Fontaine Lake and the wider Plantation Key area.
Can Momentum Realty connect me with an agent for Fontaine Lake?
Yes. Use the form on this page and we'll introduce you to a local specialist who can guide your Fontaine Lake purchase or sale - no call center and no pressure.
Where is Fontaine Lake, and what county is it in?
Fontaine Lake is in Plantation Key, Monroe County, FL, ZIP 33070.

Data sources & freshness

Community market statsFlorida Keys MLS closed sales, 12-month windows ending September 20, 2026
Under-contract sharesFlorida Keys MLS records, as of 2026-09-20
Historical depthClosed-sale records back to 2006 (39 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 Florida Keys MLS 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.

Own a home here?

You just read the data. Now see what your home is worth.

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 Florida Keys MLS member average and 8 days faster, and we’ll price yours against live local comps.

Looking to buy here? Search homes for sale →

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Nearby Communities

Explore more neighborhoods near Fontaine Lake with Momentum Realty’s local guides.

Sea Gulls0.1 mi awayTropical Atlantic Shores0.2 mi away · median $1.85M, 4 sales/12 moPlant Shores0.2 mi away · 74 homes, built 1970–24Plant Key Colony0.3 mi away · median $1.61M, 20 sales/12 moLake Harbor0.4 mi away · median $2.58M, 3 sales/12 moBoatmans Colony0.4 mi away · 43 homes, built 1963–18Sunshine Estates0.5 mi away · median $3.19M, 4 sales/12 moPlant Tropical Park0.5 mi away · 116 homes, built 1959–24

Browse all neighborhood guides →

Thinking of selling in FONTAINE LAKE? 4 recorded closings; median 79 days on market (window ending 2026-09-20). See the Monroe County sell-now-or-wait data, what made 201,552 Florida listings fail in the last 12 months, or compare a cash offer vs. listing. Compiled from MLS records; deemed reliable but not guaranteed.
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