427 Days on Market
Condo for Sale
$970,000
2 bd · 2 ba · 1,805 sqft
6423 Collins Ave # 309, Miami Beach, FL 33141
427 days on market
MAR DEL PLATA
Mar del Plata Condos — Miami Beach
6423 Collins Ave, Miami Beach, FL 33141 · Miami Beach
About Mar del Plata
Mar del Plata, at 6423 Collins Ave, is an 18-story condo building in Miami Beach, built in 1976 with 150 residences.
Today 5 units are on the market, priced from $600K up to $970K (a median $476 per square foot). By size: 2 one-bedrooms from $600K and 3 two-bedrooms from $670K. For renters, 6 units are available on annual leases from $4,150 to $6,500 a month.
Over the past twelve months 4 units closed at a median $700K ($496/sq ft), typically going under contract in about 207 days. Prices have eased 24% year over year. 4 leases were signed over the same period at a median $4,650 a month (one-bedrooms $3,400 and two-bedrooms $5,500).
Amenities include a fitness center, barbecue grills, a business center, a doorman, a secured lobby and a pool.
Mar del Plata Building Facts
The Building
- Address
- 6423 Collins Ave, Miami Beach, FL 33141
- Neighborhood
- Miami Beach
- City
- Miami Beach, FL 33141
- County
- Miami-Dade County
- Year built
- 1976
- Stories
- 18
- Residences
- 150
- Bedrooms
- 1 – 2 bedrooms
- Bathrooms
- 2 baths
- Construction
- CBS Construction
- Legal name
- Mar Del Plata Condominium
Ownership Costs & Rules
- HOA fees
- $1,403 – $1,900/mo
- HOA average
- $1,678/mo
- HOA per sq ft
- $0.99/sq ft per month
- HOA includes
- All Amenities, Elevator, Hot Water, Sewer, Water, Building Exterior, Cable Tv, Common Area
- Pets
- Allowed
- Leasing
- 12 months minimum · up to 1× a year
Market — Last 12 Months
- Closed sales
- 4
- Median sold price
- $700K
- Median sold $/sq ft
- $496
- Median days on market
- 207 days
- Leases signed
- 4
- Median rent
- $4,650/mo
- Price change vs. prior year
- -24%
Views, Parking & Security
- Waterfront
- Yes
- Views
- Ocean, Bay, Direct Ocean, Garden
- Parking
- 1 Space, No Rv/Boats, No Trucks/Trailers
- Security
- Doorman, Lobby Secured, Complex Fenced, Elevator Secure
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.
Mar del Plata Amenities
Pool, Spa & Fitness
- Exercise Room
- Pool
- Sauna
- Private Pool
Security & Access
- Doorman
- Lobby Secured
- Building Security
- Card Entry
- Key Card Entry
- Secured Garage/Parking
Social & Leisure
- Barbecue
- Billiard Room
- Clubhouse-Clubroom
Services & Building
- Business Center
- Elevator Secure
- Elevator(s)
- Trash Chute
- Bike Storage
- Management On Site
More Amenities
- Complex Fenced
- TV Camera
- Activity Room
- Additional Amenities
- Community Room
Mar del Plata Residence Features
- Dishwasher
- Electric Range
- Microwave
- Refrigerator
- Dryer
- Marble
- Washer
- Elevator
- Ocean View
- Blinds
- Ceramic Floor
- Clear Impact Glass
- Disposal
- Lobby
- Open Balcony
- Walk-In Closet(s)
- Bay
- Built-in Features
- Carpet
- Closet Cabinetry
- Cooking Island
- Direct Ocean
- First Floor Entry
- Free-Standing Freezer
Features vary by residence — confirm details for any specific unit with us.
Floor Plans & Residences at Mar del Plata
Residence configurations observed across current and recent Mar del Plata listings:
| Residence | Size Range | For Sale | For Rent | Sale Pricing | Avg $/SqFt |
|---|---|---|---|---|---|
| 1 Bed / 2 Bath | 1,278–1,503 sqft | 2 | 1 | $600K – $715K | $437 |
| 2 Bed / 2 Bath | 1,503–1,994 sqft | 3 | 5 | $670K – $970K | $478 |
Derived from live MLS data — request official floor plans and we'll send the developer set for your line.
Mar del Plata Listings
Mar del Plata Condos for Sale
99 Days on Market
Condo for Sale
$960,000
2 bd · 2 ba · 1,822 sqft
6423 Collins Ave # 203, Miami Beach, FL 33141
99 days on market
MAR DEL PLATA CONDO
Newly Listed
Condo for Sale
$715,000
1 bd · 2 ba · 1,503 sqft
6423 Collins Ave # 401, Miami Beach, FL 33141
Listed today
Mar Del Plata
Newly Listed
Condo for Sale
$670,000
2 bd · 2 ba · 1,805 sqft
6423 Collins Ave # 809, Miami Beach, FL 33141
Listed today
MAR DEL PLATA CONDO
450 Days on Market
Condo for Sale
$600,000
1 bd · 2 ba · 1,503 sqft
6423 Collins Ave # 1001, Miami Beach, FL 33141
450 days on market
Mar Del Plata
Mar del Plata Condos for Rent
- 6423 Collins Ave # 306, Miami Beach, FL 33141 — $6,500 · 2 bd · 2 ba
- 6423 Collins Ave # 203, Miami Beach, FL 33141 — $4,700 · 2 bd · 2 ba
- 6423 Collins Ave # 309, Miami Beach, FL 33141 — $4,700 · 2 bd · 2 ba
- 6423 Collins Ave # 703, Miami Beach, FL 33141 — $4,500 · 2 bd · 2 ba
- 6423 COLLINS Avenue # 1501, Miami Beach, FL 33141 — $4,490 · 2 bd · 2 ba
- 6423 Collins Ave # 1201, Miami Beach, FL 33141 — $4,150 · 1 bd · 2 ba
Mar del Plata Pending Sales
- 6423 Collins Ave # 1204, Miami Beach, FL 33141 — $725,000 · 1 bd · 2 ba
Mar del Plata Pending Rentals
- 6423 Collins Ave # 901, Miami Beach, FL 33141 — $4,000 · 2 bd · 2 ba
- 6423 Collins Ave # 901, Miami Beach, FL 33141 — $3,850 · 2 bd · 2 ba
Mar del Plata Sold Condos
- 6423 Collins Ave # 1702, Miami Beach, FL 33141 — $700,000 · 1 bd · 2 ba
- 6423 Collins Ave # 1005, Miami Beach, FL 33141 — $1,125,000 · 2 bd · 2 ba
- 6423 Collins Ave # 310, Miami Beach, FL 33141 — $525,000 · 2 bd · 2 ba
- 6423 Collins Ave # 409, Miami Beach, FL 33141 — $530,000 · 2 bd · 2 ba
Mar del Plata Rented Condos
- 6423 Collins Ave # 409, Miami Beach, FL 33141 — $4,650 · 2 bd · 2 ba
- 6423 Collins Ave # 1605, Miami Beach, FL 33141 — $5,500 · 2 bd · 2 ba
- 6423 Collins Ave # 1101, Miami Beach, FL 33141 — $3,400 · 1 bd · 2 ba
- 6423 Collins Ave # 207, Miami Beach, FL 33141 — $2,400 · 1 bd · 2 ba
Mar del Plata Market Report
Over the last 12 months, 4 condo sales closed in Mar del Plata at a median of $700K ($496/sqft), median 207 days on market. Median sold prices are down 23.9% year-over-year. 4 leases were signed at a median of $4,650/mo ($2.58/sqft). Computed from recorded MLS closings; updates automatically.
$700K
Median (12 mo)
4
Sales (12 mo)
207 days
Median DOM
Last 12 Months by Bedroom Count
| Residence | Sales | Median Sold | Sold $/SqFt | DOM | Leases | Median Rent | Rent $/SqFt |
|---|---|---|---|---|---|---|---|
| 1 Bed | 1 | $700K | $496 | 26 | 2 | $3,400 | $2.26 |
| 2 Bed | 3 | $530K | $294 | 207 | 2 | $5,500 | $2.76 |
Month-by-month table — All
| Month | Sales | Median Sold | Sold $/SqFt | DOM | Leases | Median Rent | Rent $/SqFt |
|---|---|---|---|---|---|---|---|
| Nov 2025 | — | — | — | — | — | — | — |
| Dec 2025 | — | — | — | — | — | — | — |
| Jan 2026 | — | — | — | — | — | — | — |
| Feb 2026 | — | — | — | — | 1 | $2,400 | $1.75 |
| Mar 2026 | — | — | — | — | 1 | $3,400 | $2.26 |
| Apr 2026 | — | — | — | — | 1 | $5,500 | $2.76 |
| May 2026 | — | — | — | — | — | — | — |
| Jun 2026 | 2 | $530K | $294 | 209 | — | — | — |
| Jul 2026 | — | — | — | — | 1 | $4,650 | $2.58 |
| Aug 2026 | — | — | — | — | — | — | — |
| Sep 2026 | 2 | $1.1M | $564 | 207 | — | — | — |
| Oct 2026 | — | — | — | — | — | — | — |
Mar del Plata Location & Address
Address
6423 Collins Ave, Miami Beach, FL 33141Miami Beach · Miami Beach · Miami-Dade County
Mar del Plata — Frequently Asked Questions
What do condos at Mar del Plata sell for?
Current asking prices run $600K–$970K across 5 listings. Closed sales over the past year had a median of $700K, or $496 per square foot. Typical sale prices: two-bedrooms $530K. Exact value depends on floor, line, view and finish.
Are there condos for sale at Mar del Plata right now?
Yes — 5 residences are for sale, the least expensive at $600K. Mix: 2 one-bedrooms and 3 two-bedrooms. 6 units are also available for rent.
What does it cost to rent at Mar del Plata?
The median rent over the past twelve months was $4,650 a month across 4 leases. One-bedrooms rented for about $3,400 and two-bedrooms rented for about $5,500. 6 units are available to lease today. Minimum lease terms are set by the association — ask us for Mar del Plata’s current rental policy.
Are prices going up at Mar del Plata?
The median sale price is down 24% compared with the prior twelve months. Units that sold took a median 207 days to go under contract. 4 sales closed in the last year.
When was Mar del Plata built?
Mar del Plata was completed in 1976 and has 18 stories and 150 residences.
Where is Mar del Plata located?
Mar del Plata is at 6423 Collins Ave, Miami Beach, FL 33141, in Miami Beach.
Living at Mar del Plata: Summary
Mar del Plata is a condominium in Miami Beach, Miami Beach, FL 33141 (Miami-Dade County). At last update: 5 for sale, 6 for rent and 4 sold in the past year. For a private showing, off-market availability or a valuation of your unit at Mar del Plata, call Matthew Gromadzki at +1 786-370-8570.