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The Roebling Index · Miami
Published by The Roebling Team at Compass · Corey Cohen, NY Licensed Associate Real Estate Broker
Miami·Aventura·Condominium

Bellini at Williams Island

4100 Island Boulevard, Aventura, FL 33160

Folio 2822100950001

At a glance
Year built
2013
Residences
67
Building area
179,746 sq ft
Median residence
2,608 sq ft
FEMA flood zone
Zone AE · BFE 9 ft
Latest arms-length sale
$5,250,000 · Jun 2026
Median sale (10 yr)
$1,470,000
Recorded transfers
153
Own an apartment at Bellini at Williams Island?
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Bellini at Williams Island is a 67-residence condominium building at 4100 Island Boulevard, in Aventura. County records list 2013 as the year built. It has a median residence of 2,608 square feet.

The recorded market runs to 119 arms-length sales since 2013, an annual turnover rate of 8.5 percent of the building over the past decade, and a median of $589 per square foot. Across 52 same-unit resales, 54 percent sold above their prior recorded price and the remainder at or below it, with a median gain of 5 percent over a median hold of 5.9 years. The 16 sales since 2023 carry a median of $773 per square foot, against a record that opens in 2013 and spans several market cycles.

Selling, buying or moving?

Own a residence at Bellini at Williams Island? See what it would sell for.

Choose what fits: a property-specific pricing review informed by local transaction records and market research, a conversation about buying in this market, or help planning a move between markets. Local representation is coordinated where appropriate.

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Corey Cohen, Licensed Associate Real Estate Broker · The Roebling Team at Compass
646.939.7375 · c.cohen@compass.com

At a glance

Common name: Bellini at Williams Island. It is a different building from Bellini at 10225 Collins Avenue in Bal Harbour, although the same developer built both.

Building type: Condominium tower on a gated island between the Intracoastal Waterway and Maule Lake

Architect: Cohen Freedman Encinosa & Associates

Developer: Martin Z. Margulies

Floors: 24

Residences: 70, per the state condominium registration. The county record counts 67 units.

Unit sizes: Most residences run about 2,300 to 2,700 square feet, in mostly three-bedroom plans. The largest plans, four- and five-bedroom residences at the top of the tower, reach about 4,600 to 4,955 square feet.

Amenities: Fitness center, locker rooms with saunas, media room, children's game room, sun deck with pool, spa and cabanas overlooking the marina. Island amenities are shared with Williams Island.

Services: Front desk, concierge, valet, porte-cochère, access-controlled private elevators

Source: The Roebling Research Desk.

Why Bellini at Williams Island matters

It is the newest tower on Williams Island and the last one built there. The other towers date from 1985 to 2005. Margulies, a Miami developer and art collector, also built a Bellini in Bal Harbour. The Williams Island tower has 70 residences on 24 floors, where the older island towers have roughly 170 to 310.

The tower is elliptical in plan, with wraparound glass balconies, and each residence opens from a private elevator entry. Ceilings are about 10 feet, and about 12 feet in the penthouses.

Timeline. Sales opened in 2008, with delivery then planned for 2009. The market turned, and the foundation pour and groundbreaking came in December 2011. The tower closed out in 2013.

Williams Island and Aventura

Williams Island is a gated peninsula of about 84 acres in Aventura, between Maule Lake and the Intracoastal Waterway. The lakes that bound it are flooded limestone quarry pits. The land changed hands in 1969 and again in 1980, when the Trump Group bought it and began development. It completed the first tower, 4000 Island Boulevard, in 1985. In 2004 the developer sold the common facilities to the island's property owners' association. Towers followed through 2005, and Bellini closed out the build-out in 2013.

The island's shared facilities include a spa and fitness center of about 27,000 square feet, a tennis center of 16 courts, and a marina with 106 slips. Ask in writing for Island Club membership terms, fees and any mandatory dues.

Architecture and unit composition

Cohen Freedman Encinosa designed the tower; the island's older towers are by Swedroe Architecture and Artec. Every residence has a private elevator entry, and a separate service elevator serves the building. Floors hold up to four residences, but 70 residences across 24 floors means many floors hold fewer.

Kitchens have Poggenpohl cabinetry and Sub-Zero refrigeration, baths have marble master suites, and the glass is hurricane-rated floor to ceiling. Finishes in resale units vary by owner. Floor plans are mostly three-bedroom, with larger four- and five-bedroom plans at the top of the size range. Confirm the plan schedule for any unit.

Building operations

The building has a two-story lobby, a front desk, concierge and valet, and computerized access control. The pool deck faces the marina. The fitness center, saunas, media room and children's game room are inside the building.

Florida's milestone inspection and structural integrity reserve study rules apply to condominium buildings of three or more stories; ask for the inspection report, the reserve study and any assessment history. Also ask for the budget and financial statements. Ask how costs are split between the Bellini association and the island association.

Policy framework

Pet, rental and minimum-lease rules are set by the association; confirm at offer stage.

Sales context

Launch pricing in 2008 ran from about $1.2 million to $3.5 million. A sale in June 2026 closed at $5.25 million. It is one sale, not a building price. Plan, floor, view and condition drive price, and the building average will mislead.

Unit-level transaction history is maintained in The Roebling Research Library and shared with clients during diligence.

What to know if you're buying at Bellini at Williams Island

Confirm the building. Bellini in Bal Harbour has the same name and developer. Check the address.

Get the island costs in writing. Ask what the club membership and island association charge, and what is mandatory.

Read the reserve documents. Request the SIRS, budget and financials.

What to know if you're selling at Bellini at Williams Island

Price against your plan. Use same-plan sales and adjust by floor and view.

Have the documents ready. Budget, financials, SIRS and the island membership terms shorten diligence.

Comparable buildings

  • Bellini (Bal Harbour) — a different building by the same developer, at 10225 Collins Avenue in Bal Harbour.
  • Bellamare — a 2005 tower of 218 residences at 6000 Island Boulevard on Williams Island.
  • Villa Marina — a 1998 tower at 7000 Island Boulevard on Williams Island.
  • Williams Island 2600 (Résidence du Cap) — a 1997 tower on the same island.

Compared with

The neighborhood

For the full neighborhood — its buildings and recorded pricing — read The Roebling Index guide to Aventura.

Run the numbers

Related guides

Recorded sales history

Recorded transfers for this building in Miami-Dade County public records, back to Oct 2013. Prices reflect the recorded consideration; transfers the Property Appraiser does not qualify as arms-length are shown unmarked. Nominal-consideration paper transfers (deeds into trusts and LLCs, estate and family transfers, corrective deeds) are part of the record but not sales, and are omitted from this table. Recording lags closing, so the newest sales can take several weeks to appear.

DateResidenceSizePriceArms-length
Jun 2026PH-14,955 sf$5,250,000✓
May 202612042,608 sf$1,825,000✓
Sep 20259042,608 sf$1,800,000✓
Jul 202514012,235 sf$1,800,000✓
Jun 202510042,608 sf$2,487,500✓
Apr 202523022,608 sf$2,500,000✓
Feb 202510042,608 sf$2,550,000✓
Nov 2024PH-34,955 sf$4,455,000✓
Nov 202423012,235 sf$1,800,000✓
Sep 202419032,235 sf$1,655,000✓
Aug 202411022,608 sf$2,405,000✓
Oct 20237042,608 sf$1,650,000✓
Sep 202318022,608 sf$1,700,000✓
Jul 202316042,608 sf$1,900,000✓
Jul 202320012,235 sf$1,600,000✓
Jun 202311042,608 sf$1,800,000✓
Nov 202212022,608 sf$1,537,000✓
Oct 202215042,608 sf$1,900,000✓
Jun 202219032,235 sf$1,700,000✓
May 202216012,235 sf$1,700,000✓
May 202214032,235 sf$1,470,000✓
May 20228012,235 sf$1,550,000✓
Apr 202212042,608 sf$1,752,600✓
Apr 202222012,235 sf$1,500,000✓
Apr 202210012,235 sf$1,170,000✓
Mar 202211012,235 sf$1,100,000✓
Feb 202212022,608 sf$1,250,000✓
Feb 202217042,608 sf$1,151,100
Jan 202220042,608 sf$1,400,000✓
Nov 20212104/034,843 sf$2,300,000✓
Oct 2021602/44,950 sf$1,170,700
Sep 202118022,608 sf$1,285,000✓
Aug 202118042,608 sf$1,350,000✓
Jul 202117032,235 sf$960,000✓
May 20217012,235 sf$875,000✓
May 202115012,235 sf$845,000✓
Apr 202110022,608 sf$1,065,000✓
Apr 202118032,235 sf$1,000,000✓
Mar 2021PH-14,955 sf$3,270,000✓
Feb 20218032,235 sf$795,000✓
Dec 20207032,235 sf$700,000✓
Jul 202020032,235 sf$875,000
Jul 20208012,235 sf$575,000
Dec 20198022,608 sf$1,095,000✓
Oct 201915042,608 sf$1,115,000✓
Sep 201920012,235 sf$910,000✓
Sep 201922012,235 sf$1,500,000
Aug 201922032,235 sf$782,100✓
Aug 201920032,235 sf$719,500✓
Aug 201917032,235 sf$712,600✓
Aug 20197032,235 sf$660,400✓
Aug 20198012,235 sf$625,700✓
Aug 201923012,235 sf$1,010,000✓
Aug 201914042,608 sf$1,125,000✓
Mar 201919042,608 sf$1,100,000✓
Jun 201810042,608 sf$1,112,500✓
Apr 201819012,235 sf$1,100,000✓
Mar 201820022,608 sf$1,100,000✓
Jan 201810032,235 sf$950,000✓
Jun 20179022,608 sf$1,050,000✓
Mar 201721014,843 sf$2,725,000✓
Dec 201615022,608 sf$1,500,000✓
Sep 201618012,235 sf$1,350,000✓
Aug 201623032,235 sf$1,600,000✓
Jun 20162104/034,843 sf$2,350,000
Mar 201618042,608 sf$1,650,000✓
Jan 201623012,235 sf$1,680,000✓
Oct 20159012,235 sf$1,300,000✓
Jul 201519022,608 sf$1,850,000✓
Jul 201517012,235 sf$1,400,000✓
May 2015PH-34,955 sf$4,190,000✓
May 201522022,608 sf$2,059,000✓
Apr 2015PH-24,955 sf$4,650,000✓
Mar 2015PH-44,955 sf$4,000,000✓
Jan 2015PH-14,955 sf$4,360,000✓
Jan 20158022,608 sf$1,646,200✓
Nov 201418032,235 sf$1,550,000✓
Oct 201414042,608 sf$1,600,000✓
Sep 201416032,235 sf$1,386,000✓
Jul 201419032,235 sf$1,850,000✓
Jul 201418022,608 sf$1,850,000✓
Jul 201416042,608 sf$1,730,000✓
Jul 201416012,235 sf$1,350,000✓
Jul 201411032,235 sf$1,487,000✓
Jul 201417022,608 sf$1,750,000✓
Apr 201411042,608 sf$1,500,000✓
Mar 20148032,235 sf$1,500,000✓
Jan 2014PH-24,955 sf$4,000,000✓
Jan 201420012,235 sf$1,300,000✓
Jan 201411012,235 sf$1,050,000✓
Jan 201410012,235 sf$1,025,000✓
Jan 201415042,608 sf$1,543,750
Jan 20147012,235 sf$1,040,000✓
Dec 201311022,608 sf$1,450,000✓
Dec 201317042,608 sf$1,900,000✓
Dec 201318042,608 sf$1,330,000✓
Dec 20132104/034,843 sf$1,401,250✓
Dec 2013602/44,950 sf$1,350,000✓
Dec 201315032,235 sf$1,475,000✓
Dec 201323022,608 sf$1,900,000✓
Nov 20137042,608 sf$1,650,000✓
Nov 20137022,608 sf$1,847,500✓
Nov 201312042,608 sf$1,600,500✓
Nov 201311042,608 sf$1,250,000
Nov 20139042,608 sf$1,496,250✓
Nov 201310022,608 sf$1,450,000✓
Nov 201315022,608 sf$1,543,750✓
Nov 201321014,843 sf$1,275,000✓
Nov 20139022,608 sf$1,400,000✓
Nov 201323042,608 sf$2,012,000✓
Nov 201312022,608 sf$1,275,000✓
Nov 201310042,608 sf$1,150,000✓
Nov 20139032,235 sf$1,116,250✓
Nov 201312012,235 sf$1,140,000✓
Nov 201320042,608 sf$1,867,250✓
Nov 201310032,235 sf$950,000✓
Nov 201314022,608 sf$1,475,000✓
Nov 201312032,235 sf$1,187,500✓
Nov 201311032,235 sf$1,163,000✓
Nov 201322012,235 sf$1,576,250✓
Oct 201322042,608 sf$2,059,000✓
Oct 201314012,235 sf$1,233,617✓
Oct 201316022,608 sf$1,509,750✓
Oct 201314032,235 sf$1,211,250✓
Oct 201320022,608 sf$1,475,000✓
Oct 201315012,235 sf$1,187,500✓
Oct 20138042,608 sf$1,625,000✓

✓ = qualified arms-length per the Miami-Dade Property Appraiser. 26 nominal-consideration paper transfers omitted.

This page reflects publicly available information compiled by The Roebling Research Desk. Specific building details should be confirmed with the association during due diligence; the recorded Declaration of Condominium, the current building budget, the current tax bill, the structural integrity reserve study and milestone-inspection status should be reviewed for any specific transaction. © 2026 The Roebling Team at Compass.

Considering a move at Bellini at Williams Island?

Request a private building brief with the relevant recorded sales, current and off-market availability, and an apartment-specific view of value.

Prefer to speak directly? Schedule a consultation →
Corey Cohen, Licensed Associate Real Estate Broker · The Roebling Team at Compass
646.939.7375 · c.cohen@compass.com

Building facts and sales records are compiled from Miami-Dade County public records (Property Appraiser) and reviewed against recognized architectural references. Figures are reported as recorded and may be updated as the county updates its records. This page is informational and is not an offer or solicitation. Apartment estimates are automated, from public records, and are not appraisals.

A note on representation

The Roebling Team at Compass is led by Corey Cohen, a New York licensed associate real estate broker. For a purchase or sale in Miami, we introduce you to a licensed Compass agent there by referral and handle the New York side of your move ourselves. This page and its calculators are research, not an offer of representation.

To plan a move between Manhattan and Miami, schedule a consultation; where appropriate we’ll introduce you to a vetted Compass agent in the local market.