Prices reflect the current lowest active MLS listing and update automatically -- availability changes daily. Verify all figures with the Miami-Dade County Property Appraiser (miamidade.gov/pa). Contact the condo association directly to confirm current rules, fees, and rental restrictions.
For Sale
For Rent
Data pulled directly from Miami MLS for Grand Bay Tower closed sales and leases, … – ….
| Unit | Beds/Baths | Sq Ft | Sale Price | $/Sq Ft | % of Ask | Sale Date |
|---|---|---|---|---|---|---|
| Loading recent sales… | ||||||
Showing closed sales from the last 12 months only. Individual transactions from Miami MLS; click a column heading to sort. "% of Ask" compares the sale price to the final list price. Figures are as recorded at closing -- confirm current details with us before relying on any single sale here.
Grand Bay Tower is a roughly 14-story condominium at 430 Grand Bay Dr. Completed in 1999. MLS records most often show about 14 stories.
Key Biscayne is an island village reached by the Rickenbacker Causeway, with Crandon Park to the north and Bill Baggs Cape Florida State Park to the south. Ask the association for its current budget, reserve study and any planned assessments before you buy.
MLS listings for Grand Bay Tower have shown a median association fee around $1.13/sqft/month -- shown per square foot, not as a flat dollar figure, since that's comparable across unit sizes rather than skewed by whichever units happen to be listed right now. This is a point-in-time reference, not a live figure, and can change over time. Confirm the current fee for a specific unit before making an offer.
Grand Bay Tower is 27+ years old, which puts it within Florida's Milestone Inspection requirement (SB 4-D, post-Surfside law covering condo/co-op buildings 3+ stories, coastal buildings inspected at 25 years and every 10 years after). Request the building's most recent milestone inspection report, structural integrity reserve study (SIRS), and reserve fund status before purchasing -- these determine whether a special assessment is likely.
Specific reserve fund balances, pending special assessments, and financial statements aren't public MLS data -- request them directly from the condo association or your agent before making an offer.
See the live "Monthly rental from" figure above for Grand Bay Tower's current lowest asking rent, and the market snapshot's closed-lease count and median rent for actual rental demand over the trailing 12 months -- both update automatically, unlike a number written here. Specific rental rules -- minimum lease term, rentals allowed per year, and whether short-term/Airbnb-style rentals are permitted -- are set by the condo association and vary by building. Verify current rental restrictions directly with the association before buying as an investment.
Grand Bay Tower does not generally allow pets. Verify current pet policy directly with the building association before purchasing.
Long-term rentals are generally permitted at Grand Bay Tower, though minimum lease terms and any short-term rental restrictions vary by building. Verify the current rental policy directly with the association before purchasing as an investment.
At 430 Grand Bay Dr in Key Biscayne.
It was completed in 1999. We did not find a developer or architect confirmed by more than one source, so we do not state one.
MLS records most often show 14 stories.
Reviewed by Carlos Olivares, FL License #3051724. Last updated October 2026.
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