Mariner Cay
Condos for Sale in Stuart, FL
All 688 homes for sale in Stuart, FL · median $422,000 · 275 condos for sale in Stuart · 138 homes for sale in 34996 · Martin County homes for sale
True comps, carrying-cost math, and listings before the portals.
Photo via Beaches MLS
As of November 2026, Mariner Cay in Stuart, FL has 6 homes for sale, asking from $275,000 to $425,000 (median $402,000). Homes listed or recently sold were built 1973–2022; 14 of 14 report an HOA (median $988/mo); 3 of the 14 geocoded homes sit in a FEMA special flood hazard zone (median elevation 5 ft).
Last 30 days in Mariner Cay: 2 new listings (median asking $407,000). As of November 7, 2026, All listings featuring the BMLS logo are provided by BeachesMLS, Inc. This information is not verified for authenticity or accuracy and is not guaranteed. Copyright © 2026 BeachesMLS, Inc.
Homes For Sale Right Now in Mariner Cay
Live MLS inventory for Mariner Cay. Every active listing, what is under contract right now, and the last 12 months of closed sales, refreshed twice a day. Closed comps beat an algorithm's guess every time.
Active · 24 daysTop listing
Active · 212 days
Active · 58 days
Active · 6 days
Active · 210 days
Active · 673 daysActive and pending Mariner Cay listings as of 2026-11-05, priced high to low. All listings featuring the BMLS logo are provided by BeachesMLS, Inc. This information is not verified for authenticity or accuracy and is not guaranteed. Copyright © 2026 BeachesMLS, Inc. Tap any home to ask about it.

Mariner Cay sits in Stuart's waterfront-adjacent geography, where pricing reflects proximity to navigable water and lot placement more than square footage alone. In this pocket of Martin County, dock access, canal frontage, and sightlines drive premiums that can swing wider than interior neighborhoods. You're paying for location within a mature Stuart footprint, not new construction or resort amenities.
With only two closings in our trailing window, the market here moves episodically—inventory trickles out, and each sale writes its own story. Buyers wait for the right property rather than settling; sellers who price correctly move quickly, while those testing the high end sit. If you need comparables stacked three-deep, this isn't your block.
Figures in this note are as of July 16, 2026. The live market numbers elsewhere on this page update nightly and are newer.
Mariner Cay right now
🟢 Buyer-leaning market. 6.7 months of supply and 0% of the inventory already under contract give buyers above-average negotiating leverage.Why it matters: months of supply is how long today's inventory would last at today's sales pace; under-contract share is the portion of homes for sale that already have a buyer.Momentum Research analysis of Beaches MLS records, as of September 20, 2026. Confidence: Medium (5 active and pending listings, 2 closed sales in 12 months).
Jump to: Price history & scorecard · Homes for sale · Schools · FAQ
· Updated November 7, 2026 · Live data: Beaches MLS, refreshed twice daily · MLS facts carry their source; interpretation lines are Momentum Research · Data sources & freshness
The 60-Second Overview
Mariner Cay is a quiet Stuart residential enclave where the market turns on individual property attributes—lot position, water access, and condition—rather than volume or pace. Thin inventory means patience and precision matter more than speed.
BeachesMLS sales records identify 28 homes in Mariner Cay that have changed hands since 2001, built between 1972 and 2022 (median 1976), with a median living area of about 1,871 sq ft and a typical 3-bedroom, 2.5-bath layout. Source: BeachesMLS closed-sale history compiled by Momentum Research; counts reflect homes with a recorded MLS sale, not every home in the community.
County records show 3 qualified sales in Mariner Cay across 2024–2024, median $1.40M — the last recorded sale per parcel on the Florida DOR 2025 assessment roll, independent of the MLS.
Pre-construction details are compiled from public records, builder announcements and builder listings, and are subject to change without notice; figures are deemed reliable but not guaranteed. Momentum Research figures are our own analysis. This page describes homes, pricing and community attributes, not residents.
The setting & the homes.
Aerial and on-site photos of Mariner Cay. Swipe to explore the community.
Swipe or use the arrows → tap any photo to enlarge
Photos from Beaches MLS listings in Mariner Cay; content deemed reliable but not guaranteed.
Who Mariner Cay is best for.
Best for
- Buyers prioritizing Stuart location and water proximity over amenities, willing to evaluate each property on its own terms.
- Investors or second-home buyers comfortable with episodic markets and prepared to hold for the right exit.
- Renovators with capital and patience who see value in older Stuart waterfront-adjacent stock and can manage extended timelines.
Probably not for
- First-time buyers expecting turnkey inventory at multiple price points and fast, comparable-rich transactions.
- Anyone requiring community amenities, new construction, or HOA-managed uniformity as part of the package.
- Buyers on tight closing deadlines or those who need abundant comps and predictable appreciation to justify the purchase.
The market around Mariner Cay
Mariner Cay is too small for its own price trend, so here is the market around it.
In ZIP 34996, 190 homes are on the market and 18% are under contract — a steady corner of Stuart.
Across Martin County, 1,283 homes are active and 398 pending (24% under contract).
In ZIP 34996 (Stuart), 152 homes closed in the last 12 months at a median of $320K ($223/sq ft), up 2.6% year over year, with a median 56 days on market. Right now 35 active and 5 pending listings put supply at about 2.8 months — a balanced market. See the live ZIP 34996 housing market and the Martin County market.
ZIP and county figures describe the wider market, not Mariner Cay specifically. Momentum Research analysis of MLS records.
Mariner Cay on the map.
Every active, pending, and recently sold home, plotted. Toggle the layers and tap a home for the details.
Listing locations from Beaches MLS. Map data © OpenStreetMap contributors.
Schools
- Martin County Public Schools
- Verify the zoned schools by address
- Magnet and choice options may be available
- Port Salerno · Elementary
- Dr. David L. Anderson · Middle
- Martin County · High
Zoned schools reflect the assignments reported on recent Mariner Cay listings and can change; always confirm with Martin County Public Schools for a specific address.
Buying with schools in mind? We can confirm the exact zoned schools for any Mariner Cay address.
Shop the zone: Homes zoned for Martin County High School
The Mariner Cay buying strategy.
If we were buying in Mariner Cay 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.
Use your leverage. With inventory sitting, there is room to negotiate on anything dated or overpriced and to ask for repairs or a rate buydown.
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 Mariner Cay.
A slow-turn Stuart pocket
Mariner Cay doesn't have the clubhouse, the guarded gate, or the amenity calendar that defines many Martin County subdivisions. What it offers is Stuart address proximity and waterfront-adjacent living in a low-profile setting. Homes here are older, and value hinges on upkeep, updates, and whether your lot touches water or simply sits near it. The spread between a well-maintained canal-front property and a dated interior lot can be substantial.
The two recent closings tell you this is not a churn market. Listings linger if priced aggressively; properly positioned homes find their buyer, often someone who has watched the neighborhood and knows exactly what they want. There's no developer marketing, no model center. You're buying into an established Stuart grid where the house and the water do the talking.
Understand that condition is destiny here. A turnkey home on the right lot commands attention; a fixer on the wrong side of the street can sit through multiple price cuts. Buyers come prepared with inspection budgets and renovation timelines, or they come ready to pay for someone else's finished work. This is not a starter-home zip code, and it's not a flip-and-flip-again market—transactions are deliberate.
The location and the amenities are priced into every listing in Mariner Cay. The deal is won or lost on condition, the comps, and the renovation math.
Why work with Momentum here
In a thin-inventory Stuart neighborhood like Mariner Cay, you need a broker who knows how to read between the listings—what's overpriced, what's been quietly updated, which properties will move and which will expire. Momentum's team watches the Martin County waterfront corridors daily, tracks off-market signals, and won't waste your time on listings that don't pencil. Whether you're buying one of the rare turnkey canal homes or selling into a market with two comps, we price with precision and manage expectations from day one. We work this coast; we know when to push and when to walk.
Mariner Cay in 15 seconds.
Tools for a Mariner Cay 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 Mariner Cay sales matched to your home.
Price it to the comps and condition, not an automated estimate.
If you are thinking about selling in Mariner Cay, the right list price comes from recent comparable sales matched to your home's condition and location, not an automated estimate.
What is your Mariner Cay home worth?
Get a no-obligation home value based on real comparable sales in Mariner Cay, 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 Stuart →
Recently off market in Mariner Cay
Homes in Mariner Cay that recently left the market. Each address opens its public-record profile: county-recorded value, property taxes, the last recorded sale, community sales history, and what is for sale nearby now. 1 on record.
- 3901 SE Saint Lucie Boulevard #72 · off market
| Location | Stuart, Martin County, FL |
|---|---|
| Home types (current listings and sales) | condos 71%, single-family 29% |
| Amenities listed by sellers | Pool, Tennis Court(s), Clubhouse, Boating, Gated with Guard, Pickleball Court(s) |
| For sale right now | 6 active, 0 pending · median asking $402,000 · 9.0 months of supply |
Data as of November 6, 2026. All listings featuring the BMLS logo are provided by BeachesMLS, Inc. This information is not verified for authenticity or accuracy and is not guaranteed. Copyright © 2026 BeachesMLS, Inc. Market figures describe homes, not residents. Cite as: Momentum Realty, “Mariner Cay key facts,” movewithmomentum.com/neighborhoods/mariner-cay, data as of November 6, 2026.
Housing distress & ownership in Mariner Cay, Stuart
Who owns here, how much is not owner-occupied, and how much for-sale inventory is under distress.
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. All listings featuring the BMLS logo are provided by BeachesMLS, Inc. This information is not verified for authenticity or accuracy and is not guaranteed. Copyright © 2026 BeachesMLS, Inc. Deemed reliable but not guaranteed.
Just listed in Mariner Cay
The newest homes for sale in Mariner Cay right now, newest first. Each link opens the full listing with every photo, the price history and a tour request.
- 3901 SE St Lucie Blvd Boulevard #E-33 $389,000 · 2 bd · 2 ba · 1,300 sq ft · listed Oct 30, 2026 Courtesy of Keller Williams Realty Of The
- 3901 SE Saint Lucie Boulevard #39 $425,000 · 2 bd · 2 ba · 1,450 sq ft · listed Oct 12, 2026 Courtesy of Coldwell Banker Realty
- 3901 SE Saint Lucie Boulevard #9 $415,000 · 2 bd · 2 ba · 1,300 sq ft · listed Sep 8, 2026 Courtesy of Coldwell Banker Realty
- 4083 SE Centerboard Lane #3-a $389,000 · 2 bd · 2 ba · 1,154 sq ft · listed Apr 9, 2026 Courtesy of Keller Williams Realty Of The
- 3901 SE Saint Lucie Boulevard #B-13 $424,000 · 2 bd · 2 ba · 1,460 sq ft · listed Apr 7, 2026 Courtesy of EXP Realty LLC
- 3901 SE Saint Lucie Boulevard #75 $275,000 · 2 bd · 2.5 ba · 1,515 sq ft · listed Jan 2, 2025 Courtesy of RE/MAX of Stuart
Checked against the MLS nightly. All new listings in this market.
Every Home for Sale in Mariner Cay Right Now (6)
All 6 active and pending Mariner Cay listings with a detail page, newest first, refreshed twice a day from the MLS.
- 3901 SE St Lucie Blvd Boulevard #E-33 · $389,000 · 2 bd / 2 ba · listed Oct 29, 2026 · listed by Keller Williams Realty Of The
- 3901 SE Saint Lucie Boulevard #39 · $425,000 · 2 bd / 2 ba · listed Oct 12, 2026 · listed by Coldwell Banker Realty
- 3901 SE Saint Lucie Boulevard #9 · $415,000 · 2 bd / 2 ba · listed Sep 8, 2026 · listed by Coldwell Banker Realty
- 4083 SE Centerboard Lane #3-a · $389,000 · 2 bd / 2 ba · listed Aug 8, 2026 · listed by Keller Williams Realty Of The
- 3901 SE Saint Lucie Boulevard #B-13 · $424,000 · 2 bd / 2 ba · listed Aug 8, 2026 · listed by EXP Realty LLC
- 3901 SE Saint Lucie Boulevard #75 · $275,000 · 2 bd / 2.5 ba · listed Aug 8, 2026 · listed by RE/MAX of Stuart
More Stuart home searches
- All homes for sale in Stuart, FL
- Homes for sale in Martin County, FL
- Gated communities in Stuart
- Stuart home values: what is my house worth?
Stuart guides & data
- Market data
- Cost of living
- Best neighborhoods (ranked by data)
- Best neighborhoods
- Flood zones
- Property taxes (Martin County)
- Homestead exemption (Martin County)
- Home insurance cost
Florida buyer guides
- Florida home insurance rates by county
- Florida property tax by county
- Florida property tax calculator
- What flood zone X means
- The 4-point inspection, explained
- Florida flood insurance calculator
- Florida housing market map
- Interactive housing market map (county, ZIP and community)
- Save Our Homes tax estimator
- How to stop a foreclosure in Florida
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Streets in this community
Street-level pages: every home on record, what sold and what is for sale on each street.
- SE St Lucie Boulevard (1 homes on record)
21% of homes for sale in ZIP 34997 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 (2026-11-06).
What it really costs to own in Mariner Cay
The parts of the monthly number a mortgage calculator leaves out, from the tax roll, the MLS, Citizens and FEMA. Property facts only.
| Property tax | Current owners' bills run a median of $5,043/yr across 11 listings here (MLS tax records, 2026-11-07). |
|---|---|
| HOA dues | Median $1,290/month across 15 MLS listings (most billed monthly; 2026-11-07). Dues cover what the documents say they cover; ask for the budget and reserve study. |
| Home and flood insurance | The average Citizens Property Insurance premium in Martin County is $2,580/yr (1,552 policies, Citizens detail by county, April 2026); private-market quotes depend on roof age, wind mitigation and construction. |
| Roof and age | Median build year 1974 across 11 listings. An original roof here would be about 52 years old; under Florida's 2022 reform (SB 2-D) carriers may require an inspection past 15 years, so budget for a roof report, and for replacement where it fails. |
Estimated carrying cost at the median asking price, before the mortgage: about $1,925/month (tax $420, HOA $1,290, insurance $215). An estimate from the sources above, not a quote.
Email me new listings in Mariner Cay
One e-mail a day, only when a home lists here, with price, beds, baths and a link to every listing. Straight from the MLS feed; no account needed.
Ask an agent about Mariner Cay Condos for Sale
Have a question about the homes, fees, rules or commute here? A Momentum agent who works Mariner Cay Condos for Sale will answer, and the answer is published on this page for the next buyer.
Recent Developments in Mariner Cay
Development, infrastructure, retail, and school activity affecting Mariner Cay, tracked by our team and summarized from public reporting and official sources, with links to the original coverage. Last updated November 2026.
- October 2026Schools
Murray Middle School in Stuart breaks ground on $33M rebuild phase
The second phase adds new learning spaces, a performing arts wing and gym renovations after Hurricane Milton's tornado damaged three main buildings. The gym is expected by August 2027 and the new buildings by December 2027.
What it may mean for the marketReplaces portable classrooms with permanent facilities, improving a public school campus in the Stuart area. The site is about 1 mile northeast of Mariner Cay.
Source: WPTV - October 2026Parks & Amenities
Mattamy Homes to transfer 125 acres at Newfield for St. Lucie River muck storage
Mattamy is moving 125 acres from the northern part of its Newfield development to Martin County for river restoration, matched by an adjacent 125 acres from the Florida Inland Navigation District. The combined land can hold about 2.4 million cubic yards of dredged muck, and removal starts only after federal funding is authorized.
What it may mean for the marketPreserves open land near Newfield and supports St. Lucie River water quality, with possible recreational use of the parcels later. The site is about 4 miles southwest of Mariner Cay.
Source: WPTV - October 2026Civic
Martin County adopts one-year moratorium on new data centers
Commissioners voted 4-0 on Oct. 27 for a one-year pause on data center development. A hyperscale application west of I-95 off Kanner Highway was filed earlier and is not affected.
What it may mean for the marketSets a pause on a large industrial land use while the county writes rules, which shapes what may be built near western Martin corridors. The site is about 5 miles southwest of Mariner Cay.
Source: WPTV - October 2026Civic
Martin County moves to restore MARTY bus service with emergency contract
Commissioners voted to end the contract with Martin County Transit and negotiate a one-year emergency agreement with MTM Transit after service stopped suddenly the prior week. County staff hoped to restart service within about a week.
What it may mean for the marketAffects county-wide bus access and commute options until service resumes. The site is about 2 miles west of Mariner Cay.
Source: WPTV - September 2026Development
Martin County approves limited-industrial zoning on Southeast Powerline Avenue in Hobe Sound
Commissioners voted 3-2 to rezone a property along Southeast Powerline Avenue to limited-industrial, a less intensive class than the general industrial designation first proposed. The county said the existing zoning was outdated and that no data center is planned. Any proposal over 100,000 square feet would need board approval.
What it may mean for the marketLimited-industrial zoning could add light industrial space and local jobs in Hobe Sound while capping the scale of future uses. The project is about 11 miles southeast of Mariner Cay, elsewhere in Martin County.
Source: WFLX (FOX 29) - August 2026Infrastructure
Federal government awards $79 million for St. Lucie River Bridge replacement in Stuart; Brightline station grant denied
The century-old St. Lucie River Bridge replacement received $79 million in federal funding. The federal Intercity Passenger Rail Program did not fund a proposed Brightline station in downtown Stuart. Martin County said it welcomed the bridge funding.
What it may mean for the marketBridge replacement funding supports a key rail and river crossing, while the denied grant leaves the timing of a Stuart passenger rail stop uncertain. The site is about 1 mile northeast of Mariner Cay.
Source: WJNO (iHeart)
Summaries reflect public reporting and official sources linked above as of the dates shown. Project details, timelines, and approvals can change. Commentary on potential market effects is general observation, not investment advice or a prediction for any specific property. For the freshest items across the whole region, see This Week in Northeast Florida.
Frequently Asked Questions
Is Mariner Cay a buyer's or seller's market right now?
How many homes are in Mariner Cay?
What share of Mariner Cay is owner-occupied?
When were the homes in Mariner Cay built?
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Where is Mariner Cay, and what county is it in?
Should you buy in Mariner Cay?
An honest fit check. We will tell you when it is not your community.
Data sources & freshness
| Live listings | Beaches MLS, refreshed twice daily (last: November 5, 2026) |
| Housing stock & ownership | Florida DOR assessment roll (street-list match (2 streets, ZIP 34996/34997)) |
| Under-contract shares | Beaches MLS records, as of 2026-09-20 |
| Historical depth | Closed-sale records back to 2001 (33 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 Beaches 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.
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