Grand Cay Estates Homes for Sale

Grand Cay Estates is a residential community in Highland Beach, Florida. Active listings are currently priced from $8.3M–$8.3M.

Pure Equity Realty covers Grand Cay Estates and the Highland Beach 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 a single listing for Grand Cay Estates Highland Beach homes for sale as of October 2026. The median asking price is $8.0M.

That is 704% above the Highland Beach median of $995,000. On a per-foot basis, homes here ask about $1,279 per square foot, compared with $696 across Highland Beach. So the median price buys roughly 6,250 square feet of living area. With so few listings, though, treat these figures as a snapshot rather than a trend.

Homes listed in Grand Cay Estates date from 1999, so they are about 27 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.

Here is what the median Grand Cay Estates price means in Florida closing terms. At $8.0M, a 20% down payment comes to about $1.6M, leaving a loan near $6.4M.

Florida then taxes that loan twice. First, documentary stamp tax on the note runs 35 cents per $100, or about $22,397. Next, the intangible tax of 0.2% adds about $12,798. Buyers normally pay both at closing.

On the seller side, Florida deed stamps cost 70 cents per $100 of price. At the Grand Cay Estates median, that is about $55,993.

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 Grand Cay Estates listings show assignments to J. C. Mitchell (elementary), Boca Raton Community (middle) and Boca Raton (high). However, boundaries can change each year, so confirm the assignment for a specific address with the School District of Palm Beach County.