A waterfront community on Manatee Pocket in Stuart, Florida
Mariner Cay, Stuart
A waterfront community of 151 condominiums and houses off SE St. Lucie Boulevard on Manatee Pocket, in unincorporated Martin County with a Stuart address, begun in 1973.
Homes, years and sizes: Martin County property records (2025 tax roll).
Overview
About Mariner Cay
Mariner Cay mixes condominium buildings with houses on streets named for sailing, from SE Centerboard Lane to SE Topsail Court. The county roll lists 88 condominium units and 63 single-family homes, the first finished in 1973.
The condominiums sit at 3901 SE St. Lucie Boulevard, recorded as Mariner Cay Condominium I, II and III. The houses are on the platted lots of Mariner Cay and Mariner Cay Yacht Club, recorded at PB 5, page 32 and PB 7, page 29. Homes on the roll run from about 1,300 to 3,500 square feet of living area.
County records show common land held by Mariner Cay Property Owners Association, Inc., with separate condominium associations for the buildings. We confirm which associations apply to a specific home.
It is in unincorporated Martin County with a Stuart address, in the 34997 ZIP, on the Port Salerno side of Manatee Pocket, near Sandsprit Park and the Manatee Pocket waterfront.
At a glance
- Streets
- SE St. Lucie Boulevard, SE Centerboard Lane, SE Whiticar Way, SE Jib Lane, SE Starboard Lane and SE Topsail Court
- Home type
- Condominiums and single-family homes
- Built
- Mostly 1973 to 1988
- Living area
- About 1,300 to 3,510 sq ft
- Zip code
- 34997
- County
- Martin County
- Association
- Mariner Cay Property Owners Association, Inc.
On the market now
Homes for Sale in Mariner Cay
Listings inside the boundary of Mariner Cay, newest first, updated through the day from BeachesMLS. Right now 9 homes are listed, averaging $790,000.
$389,000
New Listing
3901 SE ST LUCIE BLVD Boulevard E-33 Stuart, Florida
2 Beds 2 Baths 1,300 SqFt
$425,000
For Sale
3901 SE Saint Lucie Boulevard 39 Stuart, Florida
2 Beds 2 Baths 1,450 SqFt 7.28 Acres
$1,995,000
For Sale
4109 SE Whiticar Way Stuart, Florida
2 Beds 3 Baths 2,556 SqFt 0.79 Acres
$275,000
For Sale
3901 SE Saint Lucie Boulevard 75 Stuart, Florida
2 Beds 3 Baths 1,515 SqFt
$415,000
For Sale
3901 SE Saint Lucie Boulevard 9 Stuart, Florida
2 Beds 2 Baths 1,300 SqFt 7.28 Acres
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. IDX information is provided exclusively for consumers’ personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Information is deemed reliable but is not guaranteed accurate by BeachesMLS. Listings held by brokerage firms other than Douglas Elliman Real Estate are identified with the listing firm’s name on each listing’s detail page. Listing data last updated Friday, November 6th, 2026 at 02:25:46 AM.
Closed sales
The Mariner Cay Market
Closed sales inside the boundary of Mariner Cay, every home type together. Medians and the middle range say more than any average, and in a community this size a single unusual sale can move a year.
Mariner Cay recorded 6 closed sales in the twelve months through October 2026. Medians, so one unusual sale does not move them; we break the numbers out by home type for any home you are considering.
| Measure | Last 12 months | Year before | Change |
|---|---|---|---|
| Homes sold | 6 | 2 | +200% |
| Median sale price | $1,113,000 | $2,537,000 | -56% |
| Median price per sq ft | $452 | $736 | -39% |
| Active listings now | 9 | ||
| Median asking price now | $415,000 | ||
| Months of supply now | 18.0 |
BeachesMLS closed sales inside the boundary of Mariner Cay, twelve months through October 2026, via IDX Broker. Active listings now is live from the MLS feed; the median asking price updates monthly. Listing information deemed reliable but not guaranteed.
Association and costs
The Mariner Cay Association and What It Costs
Who runs the association, what governs it, and what current listings say the fee is.
| Association | Mariner Cay Property Owners Association, Inc. |
|---|---|
| Florida corporate record | Sunbiz document 724525, filed October 12, 1972 (opens in a new tab) |
| Water | Mariner Cay is on Manatee Pocket, which opens to the St. Lucie River near the inlet; we confirm slip rights, slip sizes and depth for a specific home. |
Association Fees From Current Listings
| Association fee, median | $1,254 a month |
|---|---|
| Typical range | $575 to $1,584 a month |
| Usually covers | Common Areas, Cable TV, Security, Pest Control, Recreation Facilities, Internet, Reserve Fund, Maintenance Grounds |
| Club membership | Not required |
From 13 current and recent BeachesMLS listings in Mariner Cay, via IDX Broker, refreshed weekly. Fees are monthly equivalents of the association fees in each listing; condo, master and sub-association fees can stack. The recorded documents, the current budget and the estoppel govern.
What Else to Check
- Taxes and insurance After a sale the assessed value resets the following January. Flood zone and roof age drive insurance quotes, so we check both for the address.
- Estoppel The closing agent orders an estoppel certificate from each association, which confirms what is owed at closing.
Documents to Review Before Closing
- Before you sign: the association disclosure summary and the parcel’s tax bill, including any non-ad valorem lines
- Before you sign: leasing and approval rules if you may rent, and architectural rules for exterior changes
- Before closing: estoppel certificates from every association that applies
Where it sits
Around Mariner Cay
Places nearby.
Zoned Public Schools
Mariner Cay is in Martin County, so public schools are assigned by the Martin County School District by address. We confirm the zoned elementary, middle and high school for the home you are considering.
How it came to be
A Short History of Mariner Cay
- 1973
The first Mariner Cay condominium units on the county roll were completed.
- 1974
The median year built across the community.
- 1988
Building on the house lots continued into the late 1980s.
- 2022
The newest home on the county roll.
Sources: Martin County 2025 tax roll (Florida Department of Revenue), Martin County Property Appraiser parcel records; Martin County subdivision records (Mariner Cay PB 5, page 32; Mariner Cay Yacht Club PB 7, page 29; Mariner Cay Condo I, II and III).
The boundary
Mariner Cay on the Map
Questions
Questions Buyers Ask About Mariner Cay
What do homes in Mariner Cay cost right now?
Right now 9 homes are listed for sale inside Mariner Cay, at an average asking price of $790,000 (about $314 per square foot), as of November 6, 2026. The market section above shows what homes here actually sold for over the past year.
Is Mariner Cay on the water?
Yes. It sits on Manatee Pocket in Port Salerno. We confirm dock and slip rights for a specific home.
What kinds of homes are in Mariner Cay?
Both. The county roll lists 88 condominium units at 3901 SE St. Lucie Boulevard and 63 single-family homes on the surrounding streets.
Is Mariner Cay gated?
Listing research describes a staffed gate. We confirm gate and access arrangements for a specific home.
Is Mariner Cay in the City of Stuart?
No. Martin County parcel records place it in unincorporated Martin County with a Stuart address.
How many homes are in Mariner Cay, and when were they built?
Martin County property records list 151 residential parcels in Mariner Cay, most built 1973 to 1988, with a typical living area of about 1,830 square feet.
Who runs the Mariner Cay association?
Mariner Cay Property Owners Association, Inc. (Florida document 724525, filed October 12, 1972) governs the community; we confirm the current management company for each home.
What are the association fees in Mariner Cay?
The fee table on this page is drawn live from current and recent listings. The seller’s disclosure, the association disclosure summary and the estoppel certificate confirm the exact amount for a specific home.
Is Mariner Cay gated?
We confirm gate and access arrangements for a specific home.
Which public schools serve Mariner Cay?
Mariner Cay is in Martin County, so public schools are assigned by the Martin County School District by address. We confirm the zoned elementary, middle and high school for the home you are considering.
Keep Exploring
More Stuart Neighborhood Guides
Mariner Cay · Stuart
Let Us Take Care of the Details
Tell us the street or the home in Mariner Cay. We come back with the listings, the association’s fees and rules, and what similar homes sold for, then arrange the visits and coordinate every step to closing day.
Monika Phillips, Sales Associate, Douglas Elliman Real Estate
- Association fees, rules and documents gathered for each home
- Leasing and approval rules pulled up front
- Tax bill and flood zone checked for the address
- One team from the first look to closing day
Home counts, years built and sizes come from Martin County property records (2025 tax roll); association records from the Florida Division of Corporations. Listing and sales data from BeachesMLS via IDX is deemed reliable but not guaranteed; listings may be held by brokerages other than Douglas Elliman. Association fees shown come from current and recent listings and can differ from the association’s budget; recorded documents and the associations’ own figures control. Verify anything that matters to your decision with the source. Monika Phillips, Sales Associate, Douglas Elliman Real Estate. Equal Housing Opportunity.
