Mariner Cay Homes for Sale

Mariner Cay Condo is a large-lot community in Stuart, Martin County, Florida. Parcels and homes are priced from $250,000 to $424,000. Properties feature oversized lots with room for pools and outbuildings. Our agents specialize in acreage transactions throughout Martin County.

Pure Equity Realty covers Mariner Cay and the Stuart area. We list for 1%, which includes photography, MLS syndication, and negotiation support. Buyers pay nothing for representation. For current market data, see Florida Realtors' market statistics.

Our MLS feed shows 5 Mariner Cay Stuart homes for sale as of October 2026. The median asking price is $415,000. Asking prices run from $275,000 to $545,000.

That sits close to the Stuart median of $420,000. On a per-foot basis, homes here ask about $298 per square foot, compared with $274 across Stuart. So the median price buys roughly 1,400 square feet of living area.

Listings here have averaged 216 days on the market. That is slower than the Stuart average of 118 days. Because of that, buyers often have more room to negotiate on price, repairs or closing costs.

Homes listed in Mariner Cay date from 1973 to 1984. That puts them between 42 and 53 years old.

All of these homes predate Florida's 2002 statewide building code. So roof age, window protection and the wind mitigation report matter a great deal for insurance.

In addition, most Florida insurers ask for a four-point inspection on homes 30 years or older. It covers the roof, electrical, plumbing and HVAC. Updated systems usually make coverage easier to place.

Condo buyers should also know Florida's 2022 condo safety law. It requires milestone structural inspections for buildings three stories or taller as they age. It also requires a structural integrity reserve study. Before you sign, request both reports and the current reserve balance.

Mariner Cay is a gated community. Therefore, expect to register visitors and contractors with the gate before each visit.

Mariner Cay includes waterfront homes. Waterfront lots in South Florida often sit in FEMA special flood hazard areas, where lenders require flood insurance. Before you commit, look up the address on the FEMA Flood Map Service Center and ask the seller for an elevation certificate.

Mariner Cay is a condo building. Also request the association budget, recent minutes and any special assessments before you sign.

Rentals in Mariner Cay have a median asking rent of $3,950 per month, across 3 active rental listings. For comparison, the Stuart median is $2,850, so rents here run 39% higher.

For investors, those medians imply a gross yield near 11.4% a year. However, that figure comes before HOA dues, property tax, insurance and vacancy. Also check the association documents first, because many Florida HOAs cap leases or set minimum terms.

You can browse current Stuart rentals or ask us for a rent estimate on a specific Mariner Cay home.

Here is what the median Mariner Cay price means in Florida closing terms. At $415,000, a 20% down payment comes to about $83,000, leaving a loan near $332,000.

Florida then taxes that loan twice. First, documentary stamp tax on the note runs 35 cents per $100, or about $1,162. Next, the intangible tax of 0.2% adds about $664. Buyers normally pay both at closing.

On the seller side, Florida deed stamps cost 70 cents per $100 of price. At the Mariner Cay median, that is about $2,905.

Finally, owner-occupants should file for the Florida homestead exemption by March 1. It removes up to $50,000 of assessed value. After that, Save Our Homes caps yearly assessment increases at 3% or inflation, whichever is lower. To see what these numbers mean for your budget, get pre-approved before you tour.

Recent Mariner Cay listings show assignments to Port Salerno (elementary), Dr. David L. Anderson (middle) and Martin County (high). However, boundaries can change each year, so confirm the assignment for a specific address with the Martin County School District.