Condo for Sale
$3,750,000
3 bd · 3 ba · 3,120 sqft
881 Ocean Dr # 10A, Key Biscayne, FL 33149
20 days on market
CASA DEL MAR CONDOMINIUM
881 Ocean Dr, Key Biscayne, FL 33149 · Key Biscayne
Casa del Mar, at 881 Ocean Dr, is a 27-story condo building in Key Biscayne, completed in 1971 with 229 residences.
6 residences are for sale right now, asking $1.5M to $3.8M (a median $1,280 per square foot). By size: 3 two-bedrooms from $1.5M and 3 three-bedrooms from $3.6M. 9 residences are offered for rent, $6,000–$22,000 per month.
Casa del Mar recorded 4 closed sales in the trailing twelve months at a median $2.5M ($1,184/sq ft), typically going under contract in about 84 days. That median is up 44% on the prior year. By size, two-bedrooms sold for a median $2.5M and three-bedrooms sold for a median $3.1M. 16 leases were signed over the same period at a median $8,300 a month (two-bedrooms $8,300 and three-bedrooms $9,500).
Life in the building comes with guard at site, tennis courts, basketball court, a doorman, a fitness center and a heated pool.
HOA, pet and leasing details are read from current MLS listings in the building and can vary by unit — confirm with the association before you buy.
Features vary by residence — confirm details for any specific unit with us.
Residence configurations observed across current and recent Casa del Mar listings:
| Residence | Size Range | For Sale | For Rent | Sale Pricing | Avg $/SqFt |
|---|---|---|---|---|---|
| 2 Bed / 2 Bath | 930–1,875 sqft | 3 | 4 | $1.5M – $2.5M | $1,344 |
| 2 Bed / 3 Bath | 1,042–1,875 sqft | — | 1 | — | — |
| 3 Bed / 2 Bath | 1,875 sqft | — | 2 | — | — |
| 3 Bed / 3 Bath | 3,120 sqft | 3 | 2 | $3.6M – $3.8M | $1,169 |
Derived from live MLS data — request official floor plans and we'll send the developer set for your line.
Condo for Sale
$3,750,000
3 bd · 3 ba · 3,120 sqft
881 Ocean Dr # 10A, Key Biscayne, FL 33149
20 days on market
CASA DEL MAR CONDOMINIUM
Condo for Sale
$3,600,000
3 bd · 3 ba · 3,120 sqft
881 Ocean Dr # 20A, Key Biscayne, FL 33149
175 days on market
CASA DEL MAR
Condo for Sale
$3,595,000
3 bd · 3 ba · 3,120 sqft
881 Ocean Dr # 7H, Key Biscayne, FL 33149
28 days on market
Casa del Mar
Condo for Sale
$2,470,000
2 bd · 2 ba · 1,875 sqft
881 Ocean Dr # 20E, Key Biscayne, FL 33149
Listed today
Casa del Mar Condo
Condo for Sale
$2,400,000
2 bd · 2 ba · 1,875 sqft
881 Ocean Dr # 16F, Key Biscayne, FL 33149
46 days on market
CASA DEL MAR
Condo for Sale
$1,495,000
2 bd · 2 ba · 1,042 sqft
881 Ocean Dr # TH31, Key Biscayne, FL 33149
Listed today
CASA DEL MAR CONDO
Over the last 12 months, 4 condo sales closed in Casa del Mar at a median of $2.5M ($1,184/sqft), median 84 days on market. Median sold prices are up 44.1% year-over-year. 16 leases were signed at a median of $8,300/mo ($4.70/sqft). Computed from recorded MLS closings; updates automatically.
| Residence | Sales | Median Sold | Sold $/SqFt | DOM | Leases | Median Rent | Rent $/SqFt |
|---|---|---|---|---|---|---|---|
| 1 Bed | — | — | — | — | 1 | $5,750 | $6.18 |
| 2 Bed | 2 | $2.5M | $1,307 | 21 | 11 | $8,300 | $4.70 |
| 3 Bed | 2 | $3.1M | $1,184 | 111 | 4 | $9,500 | $4.27 |
| Month | Sales | Median Sold | Sold $/SqFt | DOM | Leases | Median Rent | Rent $/SqFt |
|---|---|---|---|---|---|---|---|
| Nov 2025 | 1 | $3.1M | $1,000 | 84 | 1 | $8,500 | $4.53 |
| Dec 2025 | — | — | — | — | — | — | — |
| Jan 2026 | — | — | — | — | 3 | $10,000 | $4.43 |
| Feb 2026 | 1 | $1.9M | $1,019 | 6 | 1 | $6,500 | $3.47 |
| Mar 2026 | — | — | — | — | 2 | $9,500 | $5.70 |
| Apr 2026 | — | — | — | — | — | — | — |
| May 2026 | — | — | — | — | 2 | $9,000 | $4.80 |
| Jun 2026 | — | — | — | — | 2 | $8,500 | $4.53 |
| Jul 2026 | 1 | $2.5M | $1,307 | 21 | 2 | $7,500 | $5.28 |
| Aug 2026 | — | — | — | — | 1 | $5,750 | $6.18 |
| Sep 2026 | 1 | $2.2M | $1,184 | 111 | — | — | — |
| Oct 2026 | — | — | — | — | 2 | $9,500 | $5.07 |
Key Biscayne · Key Biscayne · Miami-Dade County
Buyers weighing Casa del Mar tend to shortlist these Key-biscayne buildings in a comparable price band:
Current asking prices run $1.5M–$3.8M across 6 listings. Closed sales over the past year had a median of $2.5M, or $1,184 per square foot. Typical sale prices: two-bedrooms $2.5M and three-bedrooms $3.1M. Exact value depends on floor, line, view and finish.
Yes — 6 residences are for sale, the least expensive at $1.5M. Mix: 3 two-bedrooms and 3 three-bedrooms. 9 units are also available for rent.
The median rent over the past twelve months was $8,300 a month across 16 leases. One-bedrooms rented for about $5,750, two-bedrooms rented for about $8,300 and three-bedrooms rented for about $9,500. 9 units are available to lease today. Minimum lease terms are set by the association — ask us for Casa del Mar’s current rental policy.
The median sale price is up 44% compared with the prior twelve months. Units that sold took a median 84 days to go under contract. 4 sales closed in the last year.
Casa del Mar was completed in 1971 and has 27 stories and 229 residences.
Casa del Mar is at 881 Ocean Dr, Key Biscayne, FL 33149, in Key Biscayne. Nearby comparable buildings include Commodore Club, Sands of Key Biscayne and Island House.
Casa del Mar lists from $1.5M to $3.8M today. For comparison, Commodore Club asks $724K–$4.5M, Sands of Key Biscayne asks $2.5M and Island House asks $1.2M–$3.6M.
Casa del Mar is a condominium in Key Biscayne, Key Biscayne, FL 33149 (Miami-Dade County). At last update: 6 for sale, 9 for rent and 4 sold in the past year. Buyers comparing it also look at Commodore Club, Sands of Key Biscayne and Island House. For a private showing, off-market availability or a valuation of your unit at Casa del Mar, call Matthew Gromadzki at +1 786-370-8570.