ALERTS FOR KEY COLONY I TIDEMARK
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Mark Zilbert is a Key Biscayne real estate agent who follows every listing and sale at Key Colony I Tidemark. Buyers and sellers can call or text Mark at (786) 280-0201.
Building Facts
| Year Built | 1978 |
|---|---|
| Units | 282 |
| Unit sizes | 1,009 – 3,254 SqFt |
About Key Colony I Tidemark
Key Colony I Tidemark is the first of the Key Colony condos, a 12-story oceanfront building of 282 residences from 1978. It sits on the southeast side of the complex with direct access to the beach, and a few of its residences are beachfront townhouses. Plans run from 1,009 to 3,254 SqFt, mostly two-bedroom, with 51 one-bedroom and more than 50 three- and four-bedroom condos. Its stepped pyramid shape, shared with Oceansound and Emerald Bay, sets the terraces back floor by floor.
By Mark Zilbert, Global Real Estate Advisor · updated October 2026
Asking prices by bedrooms: 1 bed $875K to $1.1M · 2 beds $1.6M to $2.8M · 3 beds from $2.9M
For Sale
5 units · avg asking $1,119/SqFt
| Unit ⇅ | Price ⇅ | Listed ⇅ |
|---|---|---|
| 9321 bed · 1,089 SqFt | $875,000$803/SqFt · ▼3.8% | 4/16/264/16 |
| 6051 bed · 1,059 SqFt | $1,075,000$1,015/SqFt | 10/12/2610/12 |
| 5302 bed · 1,531 SqFt | $1,599,900$1,045/SqFt | 7/31/267/31 |
| 6432 bed · 1,950 SqFt | $2,800,000$1,436/SqFt | 6/24/266/24 |
| 1633 bed · 2,604 SqFt | $2,865,000$1,100/SqFt · ▼4.5% | 4/9/264/9 |
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.
| Unit ⇅ | Price ⇅ | Pending ⇅ |
|---|---|---|
| 1744 bed · 3,254 SqFt | $5,100,000$1,567/SqFt | 9/28/269/28 |
| 1753 bed · 2,604 SqFt | $4,450,000$1,709/SqFt | 9/30/269/30 |
2 residences under contract
Sold · Last 12 Months
6 closed sales · avg $931/SqFt · avg 94% of last asking price
| Unit ⇅ | Sold Price ⇅ | % of Ask ⇅ | Closed ⇅ |
|---|---|---|---|
| 7072 bed · 1,880 SqFt | $2,100,000list $2,100,000 | 100% | 9/22/269/22 |
| 2272 bed · 1,531 SqFt | $1,200,000list $1,599,000 | 75% | 8/27/268/27 |
| 4242 bed · 1,531 SqFt | $1,300,000list $1,349,000 | 96% | 8/6/268/6 |
| 1432 bed · 1,541 SqFt | $1,525,000list $1,699,000 | 90% | 7/13/267/13 |
| 3333 bed · 1,541 SqFt | $1,200,000list $1,200,000 | 100% | 12/15/2512/15/25 |
| 4442 bed · 1,880 SqFt | $1,900,000list $1,900,000 | 100% | 11/14/2511/14/25 |
% of ask compares the closed price to the final list price. The building's full sold history, 138 sales, lives on the archive view.
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Location
201 Crandon Blvd · Key Biscayne
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Key Colony I Tidemark, 201 Crandon Blvd, Key Biscayne
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