# Williams Island 4000

As of 2026-11-01, Williams Island 4000 in Aventura has 7 units for sale at a median asking price of $1.4M ($749/sqft); 9 units sold in the last 12 months.

The 4000 is a luxury condominium building located in the exclusive Williams Island community.

## Key facts

| | |
|---|---|
| Address | 4000 Island Blvd |
| Neighborhood | Aventura |
| Year built | 1985 |
| Floors | 32 |
| Units | 200 |
| Waterfront | yes |
| Developer | The Trump Group |
| For sale | 7 |
| Pending | 3 |
| Median asking price | $1,395,000 |
| Median asking $/sqft | $749/sqft |
| Sold, last 12 months | 9 |
| Median sold $/sqft, 12 months | $338/sqft |
| Months of inventory | 9.3 |
| Median HOA | $2,238/mo |

## Own Miami measures

- **own.miami Building Score: 48 (B−)**
  - Value: 18 — $749/sqft — vs. Aventura condos, then all of Miami
  - Momentum: 13 — -14.1% $/sqft over 6 months
  - Liquidity: 40 — 9.3 months of supply · 194 days on market
  - Health: 92 — Verified records on file — nothing adverse
  - Waterfront: 90 — Waterfront building
  - Age: 25 — Built 1985 — vs. Aventura buildings
- **Own Miami Condo Index: 69** (value; 100 = the market-median building, 200 = twice its $/sqft; rank 591 of 698 tracked Miami condos)
- **Financeability Index: 22** (cash; 12-month window, 5 recorded mortgages, 8% of sales bank-financed, lowest down payment 30%, as of 2026-10-31)
- Special-assessment outlook: watch (next structural milestone inspection due 2030)

## Building health (verified public records)

- Public records checked 2026-10-29
- positive: 40-year recertification completed (2026-09-29)
- info: Special assessment reported as paid — noted on 1 listings (2026-09-08)
- Legal & regulatory: 3 material cases active, 0 disputes active, 0 DBPR complaints (36 months) (2026-10-29)

## Frequently asked questions

**How much do condos at Williams Island 4000 cost?**

There are 7 condos for sale at Williams Island 4000, from $749,999, with a median asking price of $1,395,000 ($749/sqft).

**How much are the HOA fees at Williams Island 4000?**

HOA / maintenance fees at Williams Island 4000 run around $2,238 per month among units currently for sale; the exact fee varies by unit size and line, so confirm the current amount with the listing or the condo association.

**Is Williams Island 4000 a waterfront building?**

Yes — Williams Island 4000 is a waterfront building (Aventura).

**When was Williams Island 4000 built?**

Williams Island 4000 was built in 1985, 32 stories, 200 residences.

**Who developed Williams Island 4000?**

Williams Island 4000 was developed by The Trump Group. The Trump Group's own.miami Developer Score is B across 12 buildings.

## Related pages

- [Aventura — neighborhood guide](https://own.miami/aventura)
- [All units for sale at Williams Island 4000](https://own.miami/buildings/4000-isl-blvd-williams-is/for-sale)
- [Coronado Tower III](https://own.miami/buildings/coronado-tower-iii)
- [Mariner Village Gardens](https://own.miami/buildings/mariner-village-gardens)

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Source: Own.Miami — https://own.miami · data as of 2026-11-01
Canonical page: https://own.miami/buildings/4000-isl-blvd-williams-is
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