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Built in 1979 - 312 units - 12 floors

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Building Information

Ocean Sound - Key Colony 2

Number of units: 310
Active listings for rent: 3
Active listings for sale: 1
Building inventory for sale: 0%
Number of sales over the last 12 months: 12
Number of sales over the last 6 months: 4
Number of sales over the last 3 months: 2
Avg. time to close over last 12 months: 107 days

Address

251 Crandon Blvd, Key Biscayne, Miami-Dade, FL, 33149

Key Colony 2 Condominium Assn
Key Colony 1 Condominium
Association Inc,Tidemark,
251 Crandon Blvd,
Key Biscayne, FL 33149
Phone: (305) 361-9351

Link: https://

Recent Sales

Unit # Size Closing Date Sale Price PPSF
237 1,532 sq ft Mar 2026 $995,000 $649
441 1,532 sq ft Mar 2026 $1,084,460 $708
628 1,532 sq ft Dec 2025 $1,300,000 $849
829 1,532 sq ft Oct 2025 $1,420,000 $927
1233   Sep 2025 $1,272,000  

Market Information

Building vs Area

Ocean Sound - Key Colony 2: $940/sq. ft.
Key Biscayne: $1120/sq. ft.

Area vs City

Key Biscayne $1120/sq. ft.
Miami-Dade $681/sq. ft.

Inventory for sale

Key Biscayne: 2%
Miami-Dade: 4%

Avg. time to close over last 12 months

Ocean Sound - Key Colony 2 107 days
Key Biscayne: 94 days
Miami-Dade: 79 days