Miami Art Week 2026Upcoming
2 exhibitions within 1 mile
Art Week Score 29 · #38 in Mid-Beach & North Beach
#38 in Mid-Beach & North Beach · #285 in Miami
Nearest: Jillian Mayer: Mayer Objects, 0.3 mi away
Own Mid-Beach & North Beach · North Beach
Mar Del Plata
6423 Collins Ave · Built 1976 · 18 floors · 150 residences
For sale
5
1 pending · 12.0 mo supply
Median asking
$820K
from $670K
Median $/sqft
$527/sqft
$496/sqft sold, 12 mo
Days on market
99
117 to sell · 5 in 12 mo
Located in the heart of North Beach, Mar del Plata is an oceanfront building situated along the beachfront boardwalk. The property offers a tranquil atmosphere with views of the Atlantic Ocean, the Intracoastal, and the city. The building is situated adjacent to a public oceanfront park featuring a playground and a dog run.
The building provides a variety of amenities, including a pool deck, fitness center, sauna, and a business center. Residents have access to a penthouse club featuring a bar, piano, and billiards, as well as a BBQ area with tiki huts. The property provides direct beach access and is located near local shops, restaurants, and the Bal Harbour area.
Live near more of Miami
What surrounds Mar Del Plata: seasonal events, annual programs and lifestyle indexes, measured from the building.
Flanigan's IndexLive now30 / 100
Nearest Flanigan's: Flanigan's Seafood Bar and Grill (Surfside), 2.7 mi
#31 in Mid-Beach & North Beach · #286 in Miami
Ten minutes on a good day. Miami has fewer of those than it admits.
1 Flanigan's locations nearby
Publix IndexLive now
53 / 100
Nearest Publix: Publix at Publix at North Shore, 0.5 mi
#20 in Mid-Beach & North Beach · #385 in Miami
Pub Sub radius. Congratulations.
1 Publix stores nearby
Distances are straight-line, not walking or driving.
Getting around
Mid-Beach & North Beach is a walkable urban neighborhood. Transit, parks, dining and landmarks within reach:
Miami Beach BoardwalkFaena DistrictFontainebleauNorth Shore Open Space ParkNormandy Isle ParkLa Gorce Country ClubCollins Avenue
59
/ 100
B
own.miami Score
A data-grounded score for Mar Del Plata from live market data — value, momentum, liquidity, building health, waterfront and age. Computed, not opinion.
Value59
$527/sqft — vs. Mid-Beach & North Beach condos, then all of Miami
Momentum50
Recent price trend
Liquidity42
12.0 months of supply · 99 days on market
Health81
2 verified records: Special assessment — noted on 1 listings · Rental restrictions
Waterfront90
Waterfront building
Age24
Built 1976 — vs. Mid-Beach & North Beach buildings
own.miami Condo Index
80Value100 = the median Miami condo building's price per sq ft; 200 = twice it.
Rank
#525 of 698 tracked Miami condos
Top 75% by price per sq ft
#65 of 85 in Mid-Beach & North Beach
Momentum
→ Steady
$527/sqft median ask
Liquidity
Balanced
The stacks
7 lines · modeled from 27 salesCondos repeat vertically — each “line” is a stack of near-identical units up the tower. We reconstruct Mar Del Plata’s lines from its sale history: the floorplan, the view, and how $/sqft climbs with the floor. The best value is the -03 line.
| Line | Layout | Size | View | $/sqft | Per floor | Low→high floor | Sales |
|---|---|---|---|---|---|---|---|
| -02 | 1 bd · 2 ba | 1,412 sqft | Ocean ViewWaterfront | $483/sqft | +$12 | $412/sqft → $542/sqft | 3 |
| -03Best value | 2 bd · 2 ba | 1,822 sqft | Ocean ViewWaterfront | $357/sqft | — | — | 2 |
| -04 | 1 bd · 2 ba | 1,278 sqft | Ocean ViewWaterfront | $510/sqft | $-3 | $518/sqft → $504/sqft | 4 |
| -07 | 1 bd · 2 ba | 1,371 sqft | Ocean ViewWaterfront | $460/sqft | — | — | 3 |
| -08 | 1 bd · 2 ba | 1,351 sqft | Ocean ViewWaterfront | $425/sqft | +$13 | $322/sqft → $508/sqft | 4 |
| -09 | 2 bd · 2 ba | 1,805 sqft | Ocean ViewWaterfront | $427/sqft | +$9 | $380/sqft → $485/sqft | 4 |
| -10 | 2 bd · 2 ba | 1,955 sqft | Ocean ViewWaterfront | $471/sqft | — | — | 3 |
Modeled from Mar Del Plata’s past listings and sales — a guide to the building’s layouts and floor premiums, not an official floor plan. “Per floor” is the average $/sqft change per floor up the stack.
What’s a unit here worth?
Pick a line and a floor — we estimate the value from Mar Del Plata’s own sales history.
Estimated value
$650,000
$507,000–$793,000 · $357/sqft
Rough estimate · 2 sales
Estimate only — not an appraisal. It reflects the line and floor, not a specific unit’s condition, renovations or view obstructions.
Want the inside track on Mar Del Plata?
Get new listings here before the portals, and a straight answer from someone who knows the building.
Inventory
$820,000$581/sqft
1 bd · 2 ba · 1,412 sqft
6423 Collins Ave #1602
Short-term leases OKSpecial assessment
Listing courtesy of Douglas Elliman, Emilio Prieto (Lic. #0637435) · MLS #A12111856
$705,000$469/sqft
1 bd · 2 ba · 1,503 sqft
6423 Collins Ave #401
Listing courtesy of Cruz International Realty Corp, Lissette Cruz (Lic. #3091090) · MLS #A12097224
$670,000$371/sqft
2 bd · 2 ba · 1,805 sqft
6423 Collins Ave #809
No special assessments
Listing courtesy of RE/MAX FIRST, Isabel Faria (Lic. #3320747) · MLS #A12052479
$960,000$527/sqft
2 bd · 2 ba · 1,822 sqft
6423 Collins Ave #203
Listing courtesy of Douglas Elliman, Emilio Prieto (Lic. #0637435) · MLS #A12041582
$970,000$537/sqft
2 bd · 2 ba · 1,805 sqft
6423 Collins Ave #309
Price negotiable
Listing courtesy of Alicia Eiroa Portella, Broker, Alicia Portella (Lic. #0515550) · MLS #A11772645
Sold $/sqft trend
3-month rolling median of closed sales in Mar Del Plata; bars are closings per month.
Location
Nearby buildings within half a mile.
Building facts
- Address
- 6423 Collins Ave
- Year built
- 1976
- Floors
- 18
- Residences
- 150
- Developer
- TR Properties INC
- Waterfront
- Yes
Amenities
- · Pool
- · Sauna
- · Fitness/gym
- · Valet
- · Business center
- · Bbq area
- · Beach access
- · Guest parking
Building rules
- Parking
- The building offers assigned, covered, and weather-shielded parking with EV-charging capabilities, along with valet and guest parking.
Special assessments & recertification outlook
ElevatedPublic records checked Oct 29, 2026 (Miami-Dade Clerk, civil docket, Florida DBPR).
Verified records
- PositiveBank financingOct 31, 2026
Regulated lenders recorded 3 purchase or refinance loans on this building in the last 12 months, financing 50% of its recorded sales, and accepted a down payment as low as 20%. A bank writing a condominium loan has just checked the building's reserves, insurance, litigation and owner-occupancy against its own standards — verified due diligence, read from the public record. Financeability Index 56/100.
Source: Miami-Dade Clerk official records
- ElevatedSpecial assessment — noted on 1 listingsOct 26, 2026
Source: MLS listing remarks
- Verified: a special assessment is in force
- Listings note no special assessment currently
- Built 1976 — past its first structural milestone; next inspection around 2031
Estimated from Mar Del Plata’s age and signals in active listings — not an official inspection or reserve report. Always verify the building’s milestone-inspection status and reserves with the association before buying.
Financeability
What the banks say about Mar Del Plata: recorded purchase mortgages, the down payments they accepted, and the programmes in use.
Regulated lenders are writing purchase loans here at ordinary down payments — their due diligence on reserves, insurance and litigation, verified by the public record.
- Mortgages recorded, 12 months
- 6
- 3 from banks and credit unions · purchases and refinances
- Sales bank-financed
- 50%
- 6 recorded sales, 12 months · Resales only
- Average down payment
- 32.4%
- Lowest down payment accepted
- 20%
Loan programmes, 24 months:Conventional 3Other 3
High confidence · As of 2026-10-31
Source: Miami-Dade County official records and the FHA/VA approval lists. Aggregates only; individual instruments are never shown. Compare with Mid-Beach & North Beach
Flooding and storm surge
Public flood data at this building’s location, read Oct 22, 2026.
- FEMA flood zone
- Zone X: minimal-risk area on FEMA’s map.
- Hurricane evacuation zone
- Zone B
- Miami-Dade storm surge planning zones run from A (called first) to E. The county decides which zones evacuate in a storm.
- Ground at the building
- 9.5 ft
- Lowest nearby street
- 5.7 ft
- Highest predicted tide, 2026
- 1.0 ft
Elevations in feet above the NAVD88 datum.
The lowest street next to this building sits 4.7 ft above this year’s highest predicted tide (Oct 27, 2026).
Estimated from public data, not a flood determination. Check the FEMA flood map and an elevation certificate for this building.
Legal & Regulatory
No material litigation foundCivil court cases involving the condominium association, classified by what they are about. Routine collections against individual owners are counted separately and do not affect the building’s standing.
- Active material lawsuits
- 0
- Owner / association disputes
- 0
- Routine collection cases
- 0
- DBPR complaints
- 0
- Open DBPR complaints
- 0
No civil cases involving the association were found on the Miami-Dade docket in the last five years.
DBPR registration PR1S006997 · Approved,Recorded. Public complaints on record with the Florida Division of Condominiums; investigations are confidential and not counted.
Court records are matched to the association by name and summarized by us; a case is a claim, not a finding. Ask the association for its litigation disclosure before buying.
Frequently asked
How much do condos at Mar Del Plata cost?+
There are 5 condos for sale at Mar Del Plata, from $670,000, with a median asking price of $820,000 ($527/sqft).
How much are the HOA fees at Mar Del Plata?+
HOA / maintenance fees at Mar Del Plata run around $1,784 per month among units currently for sale; the exact fee varies by unit size and line, so confirm the current amount with the listing or the condo association.
Is Mar Del Plata a waterfront building?+
Yes — Mar Del Plata is a waterfront building (Mid-Beach & North Beach).
When was Mar Del Plata built?+
Mar Del Plata was built in 1976, 18 stories, 150 residences.
Who developed Mar Del Plata?+
Mar Del Plata was developed by TR Properties INC.
Stay ahead
Interested in Mar Del Plata?
We track every listing here, every day. Get the next one before it hits the portals — and a straight answer from someone who knows the building.
If you like Mar Del Plata, compare
The Pavilion
5601 Collins Ave · 1968 · 18 floors
27 for salefrom $430K$545/sqft
5600 Condominium
5600 Collins Ave · 1967 · 18 floors
14 for salefrom $450K$544/sqft
Burleigh House
7135 Collins Ave · 1970 · 20 floors
14 for salefrom $295K$524/sqft
Seacoast 5700
5700 Collins Ave · 1968 · 17 floors
14 for salefrom $379K$431/sqft
Embed this building
Add a live Own Miami card to your site or blog — it updates automatically. See all widget options →
<iframe src="https://own.miami/embed/building/mar-del-plata" width="440" height="230" style="border:0;max-width:100%" loading="lazy" title="Own Miami building card"></iframe>