$3,600,000
3 bd · 3 ba · 3,120 sqft
881 Ocean Dr # 20A, Key Biscayne, FL 33149
CASA DEL MAR
Casa del Mar Building Guide
881 Ocean Dr, Key Biscayne, FL 33149 · Key Biscayne
Inside Casa del Mar
On 881 Ocean Dr in Key Biscayne, Casa del Mar is a residential condominium. We follow this building unit by unit: each line, floor and exposure trades at its own level, so the listings below are sorted by status — available, under contract and recently closed — rather than blended into a single average.
The layouts seen in recent MLS activity run from 1-bedroom plans up to 3-bedroom residences. Shared facilities on record for the building include elevator(s), guard at site, lobby secured, pool, tennis court(s) and barbecue — worth confirming with the association which are covered by the monthly dues and which carry their own fees. For closed prices, rents and time-to-sell by bedroom count, scroll to the twelve-month market report for Casa del Mar further down.
Building Record
- Address
- 881 Ocean Dr, Key Biscayne, FL 33149
- Median Price / SqFt
- $1,280
Shared Amenities at Casa del Mar
- Elevator(s)
- Guard At Site
- Lobby Secured
- Pool
- Tennis Court(s)
- Barbecue
- Bike Storage
- Exercise Room
- Library
- Smoke Detector
- Walled
- Basketball Court
- Community Room
- Complex Fenced
- Doorman
- Elevator Secure
- Exterior Lighting
- Heated Pool
- Private Guards
- Sauna
- Security Patrol
- Trash Chute
- TV Camera
- Vehicle Wash Area
In-Unit Features at Casa del Mar
- Dishwasher
- Dryer
- Hurricane Shutters
- Open Balcony
- Bay
- Ceramic Floor
- Direct Ocean
- Electric Range
- Microwave
- Refrigerator
- Washer
- Blinds
- Built-in Features
- Carpet
- Clear Impact Glass
- Den/Library/Office
- Electric Water Heater
- Entrance Foyer
- Ice Maker
- Intracoastal View
- Ocean View
- Pool Area View
- Skyline
- Sliding
Finishes differ from unit to unit; check any feature against the specific listing before relying on it.
Layouts & Floor Plans in Casa del Mar
Unit layouts recorded in Casa del Mar listings, active and recently closed:
| Residence | Size Range | For Sale | For Rent | Sale Pricing | Avg $/SqFt |
|---|---|---|---|---|---|
| 2 Bed / 2 Bath | 930–1,875 sqft | 3 | 3 | $2.4M – $2.5M | $1,292 |
| 2 Bed / 3 Bath | 1,042–1,875 sqft | — | — | — | — |
| 3 Bed / 2 Bath | 1,875 sqft | — | 1 | — | — |
| 3 Bed / 3 Bath | 3,120 sqft | 2 | 2 | $3.5M – $3.6M | $1,138 |
Compiled from MLS records. Ask for the official plan of a particular line and we will send the developer drawing.
Casa del Mar Listings
Casa del Mar — Units for Sale
Casa del Mar — Units for Lease
Casa del Mar — Sales Under Contract
Casa del Mar — Leases Pending
Casa del Mar — Closed Sales, Past Year
Casa del Mar — Leases Signed, Past Year
$3,500,000
3 bd · 3 ba · 3,120 sqft
881 Ocean Dr # 13H, Key Biscayne, FL 33149
Casa del Mar Condo
$2,470,000New
2 bd · 2 ba · 1,875 sqft
881 Ocean Dr # 20E, Key Biscayne, FL 33149
Casa del Mar Condo
$2,400,000
2 bd · 2 ba · 1,875 sqft
881 Ocean Dr # 16F, Key Biscayne, FL 33149
CASA DEL MAR
$2,400,000
2 bd · 2 ba · 1,875 sqft
881 Ocean Dr # 23C, Key Biscayne, FL 33149
Casa del Mar Condo.
Casa del Mar: Twelve-Month Condo Readout
A rolling year of recorded closings and signed leases for Casa del Mar, recalculated as new MLS closings post. Switch the metric or bedroom count below to isolate the part of the building stock you are shopping.
- Closed sales:
- 3
- Median closed:
- $2.2M
- Per sqft:
- $1,184
- Median days to sell:
- 21
- Year over year:
- +30.6%
- Leases signed:
- 15
- Median rent:
- $8,000/mo ($4.70/sqft)
$2.2M
Median (12 mo)
3
Sales (12 mo)
21 days
Median DOM
Last 12 Months by Bedroom Count
| 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 | 10 | $8,300 | $4.80 |
| 3 Bed | 1 | $2.2M | $1,184 | 111 | 4 | $9,500 | $4.27 |
Month-by-month table — All
| Month | Sales | Median Sold | Sold $/SqFt | DOM | Leases | Median Rent | Rent $/SqFt |
|---|---|---|---|---|---|---|---|
| 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 |
| Nov 2026 | — | — | — | — | — | — | — |
Where Casa del Mar Sits
Towers to Compare With Casa del Mar
Comparable Key Biscayne buildings whose current listings overlap the Casa del Mar price band — worth touring side by side:
Questions Buyers Ask About Casa del Mar
Which association documents should I review before buying at Casa del Mar?
Request the current budget, the reserve study, at least a year of board minutes, the rules and regulations, and a written statement of any special assessment that is approved or under discussion. Florida's condo-safety laws now require milestone structural inspections and structural integrity reserve studies for buildings of three or more stories, so ask where Casa del Mar stands on both.
Does Casa del Mar allow pets?
Pet policy is set by the Casa del Mar association and can limit the number, size or type of animals — and a board vote can change it. Get the current rule in writing before you make an offer; we request it as a standard step on every condo purchase we handle.
What leasing rules apply to owners at Casa del Mar?
Minimum lease length, how many times a year a unit may be leased, tenant approval and any waiting period for new owners are association decisions. If you plan to rent the unit out, verify the current policy first; the rental and leased tabs on this page show the lease activity recorded here.
How do view lines and floor height affect value at Casa del Mar?
Inside one tower, price follows the stack: exposure, view corridor, floor height and whether the line is a corner unit all matter. Compare closed prices by bedroom count in the market report, then ask us which lines in Casa del Mar face which direction before you build a shortlist.
Does a unit at Casa del Mar come with parking?
Parking arrangements differ by building and sometimes by unit — assigned spaces, valet, or spaces conveyed as limited common elements. Confirm how many spaces transfer with the specific residence and whether guest parking or storage costs extra.
How does Gromadzki Real Estate price a unit in Casa del Mar?
Building first: closings in the same line and bedroom count, then nearby floors, then comparable towers in Key Biscayne. The association's health — reserves, assessments and insurance — gets equal weight, because it shapes the monthly cost of ownership as much as the purchase price does.
What is the street address of Casa del Mar?
The building's address is 881 Ocean Dr, Key Biscayne, FL 33149 — part of Key Biscayne. The map lower on this page pins its exact location.
Casa del Mar: Building Notes
Building file: Casa del Mar, Key Biscayne, Key Biscayne, Florida 33149 (Miami-Dade County). Before any offer here we pull the association's current budget, reserve funding, recent board minutes, any approved or proposed special assessment and the building's milestone-inspection status, then price the unit against closings in its own line before looking at neighboring towers. Buyers weighing Casa del Mar usually tour Ocean Towers, Commodore Club and Island House as well. To see a specific unit or ask which lines face which direction, call Matthew Gromadzki at +1 786-370-8570.