4000 Williams Island
Aventura, Miami · 4000 Island Blvd, Aventura, FL 33160
4000 Williams Island in Aventura, Miami has 758 recorded condominium sales dating back to 1985, a median sale price of $370K and an average of $208 per square foot. Every figure below is drawn from recorded deeds — not listings, not estimates.
4000 Williams Island is one of 128 condo buildings CURVE covers in Aventura, where the median recorded price is $186 per square foot. By that measure it ranks #65 of 128 in the neighborhood.
The record
Sales activity
Recorded sales by year
Every deed recorded in 4000 Williams Island, by year, with that year's median price.
Sales by price point
How 758 recorded sales distribute across the price ladder.
Unit mix sold
Bedroom count across recorded sales.
10 most recent sales
| Unit | Date | Beds | Type | Price | $/SF | Change |
|---|---|---|---|---|---|---|
| 2402 | 6/1/2026 | 3 Beds | Resale 7 | $975K | $458 | +97% |
| 1503 | 5/14/2026 | 2 Beds | Resale 8 | $490K | $325 | +36% |
| 1507 | 2/18/2026 | 2 Beds | Resale 5 | $820K | $387 | +26% |
| 906 | 12/16/2025 | 2 Beds | Resale 6 | $1.2M | $573 | +13% |
| 2607 | 11/19/2025 | 2 Beds | Resale 5 | $927K | $437 | +25% |
| 2606 | 10/20/2025 | 2 Beds | Resale 4 | $1.0M | $483 | +41% |
| 1906 | 10/3/2025 | 2 Beds | Resale 6 | $1.1M | $519 | -5% |
| 605 | 9/25/2025 | 2 Beds | Resale 4 | $150K | $100 | -35% |
| 2002 | 9/10/2025 | 3 Beds | Resale 7 | $1.1M | $540 | +21% |
| 2503 | 9/3/2025 | 2 Beds | Resale 4 | $499K | $331 | +52% |
The full 4000 Williams Island record
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More buildings in Aventura
About this record
Where does this data come from?
Every sale shown is a deed recorded with the Miami registry — the legal record of the transaction, not a listing or an estimate. CURVE assembles, verifies and reconciles each one to the building and the unit.
How many sales are in 4000 Williams Island?
758 recorded sales, going back to 1985, of which 587 are resales. This page shows the 10 most recent; members see all of them.
What has 4000 Williams Island done over time?
Resales in the building have changed hands at an average of +20.7% against their prior recorded price, after an average hold of 8.0 years.
What do members see that I don't?
The complete sales table, each unit's full chain of title, buyer and seller names, financing detail, the deed book and page behind every figure, the condo documents, and reports you can send to a client.