Casa del Mar
Casa del Mar is a 27-story oceanfront condominium at 881 Ocean Drive in Key Biscayne, completed in 1971 as the first high-rise building on the island. The tower comprises 234 residences with a semi-private elevator foyer serving just two units per floor, set directly on the beach with unobstructed Atlantic Ocean views to the east and Biscayne Bay views to the west. Building amenities include a beachfront swimming pool, two clay tennis courts, a basketball court, a fitness center, a party room with kitchen, a library, a children's room, a barbecue area, and 24-hour security and concierge staff. Residents have direct beach access and assigned covered parking, and the association enforces a no-pets and no-golf-cart policy. Located on the northern end of Key Biscayne, a barrier island in Miami-Dade County connected to the mainland via the Rickenbacker Causeway, the building sits near Crandon Park and offers an established, low-density alternative to Miami Beach's high-rise corridor.
Amenities
- Beachfront swimming pool
- 2 clay tennis courts
- Basketball court
- Fitness center/gym
- Party room with kitchen
- Library
- Children's/kids' room
- BBQ area
- 24-hour security
- Concierge service
- Direct beach access
- Assigned covered parking
- Semi-private elevator foyer (2 units per floor)
Casa del Mar sits on the northern end of Key Biscayne, a barrier island in Miami-Dade County between the Atlantic Ocean and Biscayne Bay, connected to Miami via the Rickenbacker Causeway and near Crandon Park.
Income
Employment
Income Brackets (%)
Population
Age Distribution (%)
Housing Tenure
Ownership (%)
Education (age 25+)
Educational Attainment (%)
Commute to Work
How Residents Commute (%)
Population
Race & Ethnicity (%)
Key Biscayne, FL 33149
Available Residences at Casa del Mar
3 Bedroom Condos · 1 unit
| Unit | Asking Price | Bed(s)/Bath(s) | Living Size | Price/Sq.Ft. | Days on Market |
|---|---|---|---|---|---|
| 7D | $2,350,000 | 3 / 2 | 1,875 | $1,253 | 41 |
Compare every Key Biscayne building, its inventory, and area market trends in one place.
ANALYTICS
CURRENT INVENTORY
INVENTORY BY BEDROOM
- 3 Bed (1) 100%
INVENTORY TREND (ALL UNITS)
Market & Community Report
As of July 6, 2026, Casa del Mar carries 1 active listing at an average asking price of $2.4M, with an average time on market of 41 days. Closed sales over the preceding 36 months averaged $963 per sq ft, and 2 transactions closed in the past 12 months — implying 6 months of supply against the current pace of absorption.
Zip code 33149 (Key Biscayne) is home to 14,628 residents with a median age of 43.2. Per-capita income stands at $106,219; 77.1% hold a bachelor's degree or higher. 69.4% of units are owner-occupied; 34.6% of residents work from home.
Data current as of July 6, 2026. Market metrics derived from MLS closed sales; community data from U.S. Census ACS.
Frequently Asked Questions — Casa del Mar
How many condos are for sale at Casa del Mar?
As of July 6, 2026, 1 residence is actively listed for sale at Casa del Mar. Current asking prices range from $2.4M to $2.4M. Inventory updates daily from the MLS.
How much do condos at Casa del Mar cost?
Condos at Casa del Mar are currently asking from $2.4M to $2.4M. Over the past 36 months, closed sales have averaged $963 per square foot. Final pricing varies by floor, line, square footage, finishes, and view.
What is the average price per square foot at Casa del Mar?
Based on MLS closed sales over the preceding 36 months, the average sale price at Casa del Mar is $963 per square foot. Use this as a benchmark when comparing active listings in the building.
Where is Casa del Mar located?
Casa del Mar is located at 881 Ocean Dr, Key Biscayne, FL, 33149, in the Key Biscayne area.
What neighborhood is Casa del Mar in?
Casa del Mar is in Key Biscayne, Key Biscayne. You can compare every condo building, home inventory, and price trend across Key Biscayne on its neighborhood guide.
How many units are in Casa del Mar?
Casa del Mar has 234 residences across 27 stories.
What year was Casa del Mar built?
Casa del Mar was completed in 1971.
What amenities does Casa del Mar offer?
Casa del Mar amenities include Beachfront swimming pool, 2 clay tennis courts, Basketball court, Fitness center/gym, Party room with kitchen, Library, Children's/kids' room, BBQ area.