Cay Polynesia Homes for Sale

Cay Polynesia Condo is a community in Key Biscayne, Miami-Dade County, Florida. Active listings are priced from $480,000 to $499,000. Homes were built starting 1965. Pure Equity lists homes in Cay Polynesia and represents buyers. Commission is negotiable, and what we are paid is agreed with you in writing before you commit to anything.

Pure Equity Realty covers Cay Polynesia and the Key Biscayne 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 2 Cay Polynesia Key Biscayne homes for sale as of October 2026. The median asking price is $455,000. Asking prices run from $450,000 to $459,000.

That is 83% below the Key Biscayne median of $2.65M. On a per-foot basis, homes here ask about $748 per square foot, compared with $1,161 across Key Biscayne. So the median price buys roughly 600 square feet of living area. With so few listings, though, treat these figures as a snapshot rather than a trend.

Listings here have averaged 160 days on the market. That is slower than the Key Biscayne average of 130 days. Because of that, buyers often have more room to negotiate on price, repairs or closing costs.

Homes listed in Cay Polynesia date from 1965, so they are about 61 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.

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

Rentals in Cay Polynesia have a median asking rent of $2,425 per month, across 2 active rental listings. For comparison, the Key Biscayne median is $8,500, so rents here run 71% lower.

You can browse current Key Biscayne rentals or ask us for a rent estimate on a specific Cay Polynesia home.

Here is what the median Cay Polynesia price means in Florida closing terms. At $455,000, a 20% down payment comes to about $91,000, leaving a loan near $364,000.

Florida then taxes that loan twice. First, documentary stamp tax on the note runs 35 cents per $100, or about $1,273. Next, the intangible tax of 0.2% adds about $727. Buyers normally pay both at closing.

On the seller side, Miami-Dade charges deed stamps of 60 cents per $100 on a single-family home, about $2,727 at this price. Condos and other property types pay a higher rate.

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 Cay Polynesia listings show assignments to Key Biscayne K-8 (elementary), Ponce De Leon (middle) and Coral Gables (high). However, boundaries can change each year, so confirm the assignment for a specific address with Miami-Dade County Public Schools.