Bellini Williams Island
4100 Island Blvd, Aventura, FL 33160
ALERTS FOR BELLINI WILLIAMS ISLAND
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Mark Zilbert is a Aventura real estate agent who follows every listing and sale at Bellini Williams Island. Buyers and sellers can call or text Mark at (786) 280-0201.
Building Facts
| Developer | Martin Z Margulies |
|---|---|
| Architect | Cohen Freedman Encinosa |
| Year Built | 2013 |
| Units | 67 |
| Floors | 24 |
| Unit sizes | 2,235 – 4,955 SqFt |
About Bellini Williams Island
Bellini Williams Island is a 24-story condo of 67 residences at 4100 Island Boulevard, built on the island's last site. Martin Z. Margulies developed it, Cohen Freedman Encinosa & Associates designed its elliptical form with wraparound glass balconies, and it was completed in 2013. Most residences are three-bedroom plans of 2,235 to about 2,700 SqFt, with penthouses up to 4,955 SqFt, 10-foot ceilings, impact glass and a private elevator to each. The 106-berth marina and the Williams Island Club sit nearby.
By Mark Zilbert, Global Real Estate Advisor · updated October 2026
Asking prices by bedrooms: 3 beds from $2.7M
For Sale
1 unit · avg asking $1,033/SqFt
| Unit ⇅ | Price ⇅ | Listed ⇅ |
|---|---|---|
| 9043 bed · 2,608 SqFt | $2,695,000$1,033/SqFt · ▼6.7% | 4/21/264/21 |
Pending Sales
Under contract, awaiting closing. The freshest signal of where prices are settling. In the MLS: For sale is Active or Active with Contract; these are Pending. The price shown is the asking price. The closed price appears in Sold when it records.
No residences under contract at the moment.
Sold · Last 12 Months
4 closed sales · avg $879/SqFt · avg 90% of last asking price
| Unit ⇅ | Sold Price ⇅ | % of Ask ⇅ | Closed ⇅ |
|---|---|---|---|
| 23033 bed · 2,235 SqFt | $1,800,000list $2,100,000 | 86% | 9/9/269/9 |
| 14033 bed · 2,235 SqFt | $1,700,000list $1,800,000 | 94% | 7/31/267/31 |
| PH 14 bed · 4,955 SqFt | $5,250,000list $5,695,000 | 92% | 6/29/266/29 |
| 12043 bed · 2,608 SqFt | $1,825,000list $2,049,000 | 89% | 6/1/266/1 |
% of ask compares the closed price to the final list price. The building's full sold history, 83 sales, lives on the archive view.
Lines and Floorplans
A line is a stack of identical residences, the same plan and views, one above another. Each line’s last sale is the cleanest comp a buyer can get.
| Line ⇅ | Beds ⇅ | SqFt ⇅ | Plan |
|---|---|---|---|
| 01 | 3 / 3 | 2,235 | — |
| 02 | 3 / 3½ | 2,608 | — |
| 03 | 3 / 3 | 2,235 | — |
| 04 | 3 / 3½ | 2,608 | — |
| — | 4 / 6½ | 4,955 | — |
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Location
4100 Island Blvd · Williams Island
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Bellini Williams Island, 4100 Island Blvd, Aventura
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