Allison Island: what the houses have sold for
50 single-family parcels, and 10 recorded arm's-lengthsales since the start of 2024. Every figure below is from the Miami-Dade County property roll, counts only transfers the state marks as arm's length, and says how many were excluded to get there. Read September 8, 2026.
Allison Island on the county roll
- Parcels
- 50 single-family
- Qualified sales since 2024
- 10
- Median of those sales
- $16,250,000
- Median $/sf
- $2,482 of heated area
- Transfers excluded
- 35 of 129 recorded (27%) — not arm's length
- Highest recorded
- $51,000,000 on February 13, 2026
- Built
- 1931 to 2025, median 1968 (46 parcels with a year on the roll)
The recorded sales
Arm's-length transfers since the start of 2024, most recent first, as the county recorded them. Addresses are public record; the names on the deeds are too, and this site does not publish them.
| Recorded | Address | Price | Heated sf | $/sf |
|---|---|---|---|---|
| March 6, 2026 | 6480 ALLISON RD | $33,250,000 | 10,278 | $3,235 |
| February 13, 2026 | 6596 ALLISON RD | $51,000,000 | 9,743 | $5,235 |
| January 7, 2026 | 6620 ALLISON RD | $21,000,000 | 6,549 | $3,207 |
| July 14, 2025 | 6640 ALLISON RD | $16,500,000 | 8,911 | $1,852 |
| February 20, 2025 | 6494 ALLISON RD | $31,021,000 | 8,602 | $3,606 |
| July 1, 2024 | 6350 ALLISON RD | $12,100,000 | 5,082 | $2,381 |
| May 3, 2024 | 6525 ALLISON RD | $8,180,000 | 3,558 | $2,299 |
| April 16, 2024 | 6470 ALLISON RD | $6,250,000 | — | — |
| April 10, 2024 | 6445 ALLISON RD | $16,000,000 | 6,482 | $2,468 |
| March 18, 2024 | 6415 ALLISON RD | $8,800,000 | 3,546 | $2,482 |
What governs this parcel
City of Miami Beach.
- Seawall — City of Miami Beach. The owner is responsible. New seawalls must meet a minimum of 5.7 feet NAVD, or 4.0 feet NAVD if designed to support future elevation to 5.7, and a repair at or above $300 per linear foot is substantial enough to trigger that standard. After a citation the clock is 60 days to show progress and 730 to finish. The full sequence.
- Flood elevation. Elevation certificates have been required since 1995 for new construction and substantial improvement, and the county publishes a searchable database for homes built after that. A house older than that with no substantial improvement usually has none. The 50% rule turns a large renovation into an elevation project by threshold rather than negotiation.
- Getting a boat to open water. We have not published a verified clearance for the bridges on this route and will not borrow one from a neighboring causeway — a wrong air-draft figure sends somebody to a house their boat cannot reach.The verified Venetian figures are here, and the equivalent for this route is being assembled from the same federal source.
Where this sits
- All nine island groups side by side — the same county record, the same exclusions
- What to check before offering — the seven authorities and the order they bite
- If you own here and are thinking about selling
Work with Stefania
Ask about a specific address on Allison Island
Send the address. Stefania will come back with what that parcel has actually traded for, filtered to arm's-length sales, with the assessed value beside it and the recorded transfers that were excluded and why.
Got it — that reached Stefania directly.
She answers inquiries personally, usually the same day. If it is urgent, call(786) 828-0091.
Source: Miami-Dade County ArcGIS Comparable Sales layer, single-family parcels, read September 8, 2026. Only transfers the Florida Department of Revenue marks as qualified are counted in any median. The county publishes its roll subject to its own disclaimer and it can lag a recorded deed by roughly a week and a half.