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621 N Mashta Dr, Key Biscayne FL 33149

House Recently Sold
$8,025,000

BTC: 125.39062500

ETH: 4,458.33333333

Sold on: 2021-11-29
16 days
Waterfront
4 bds
5 ba
3,202 sqft

Overview

Welcome to one of the most coveted Key Biscayne waterfront locations. Serious Boaters paradise ! Mashta island wide water views, glimpse of the city lights…Biscayne bay and tip of Harbor Point. Gated, 1 story elevated residence, Elegant & easy floor plan. All 3 bedrooms en suite, Master suite overlooks Hurricane Harbor. Large reception area w/ high ceilings, double door impact glass opening to large covered terrace overlooking Hurricane Harbor, w/ direct access to pool, garden and dock. Adjacent to living room area:elegant library w/ powder room & formal dining area. Enclosed kitchen w/direct access to dining room. Staff quarters 1/1. 1 car enclosed garage. Broker remarks for 3 D & floor plan, Unbranded virtual tour w/ Matter port .

Location

Florida • Key Biscayne • 33149 • House • Recently Sold • Waterfront

Details

Type:
Residential
Parking:
Circular Driveway
Year Built:
1987
Lot:
15096 Square Feet
Heating:
Electric
Price/sqft:
$2,467
Cooling:
Electric
HOA:
No Data

Valuation

Our model vs. what's actually selling nearby.
Estimate
$2,099,000
$779K – $4.9M
Confidence Low
List vs. estimate
$5.8M above estimate
List $7,900,000 · +276.4%
Our model says this listing is priced above recent comparable activity. Room to negotiate.
Price per sq ft
$2,467
+28.1% vs. city median $1,925
Based on
7 MLS comparables
+ 21 public-records sales within 0.5 mi
Median actual sale: $3.6M
Median of recent comparable listings. Sold comps use closing price, active listings use list price.

Highlights

Annual tax
$75,751
2020
Pool
In Ground
View
Intracoastal View, Other
Waterfront
Ocean Access, Navigable Water
Garage
1 car garage
Pets
Allowed
All facts and features

  • Flooring

    • Marble

    Heating

    • Electric

    Cooling

    • Electric

    Appliances

    • Dishwasher

    • Disposal

    • Dryer

    • Electric Water Heater

    • Refrigerator

    Other interior features

    • First Floor Entry

    • Great Room

    • Utility/Laundry In Garage

    Bedrooms and bathrooms

    • Bedrooms: 4

    • Full bathrooms: 5

  • Parking

    • Circular Driveway

    Lot

    • Lot: 15096 Square Feet

    Other Property Information

    • Parcel Number: 24-52-05-009-0010

    • Zoning: 2001

  • Type and style

    • Property Type: Residential

    • Property Sub Type: Single Family Residence

  • Other financial information

    • Annual tax amount: $75,751

  • Source details

    • MLS ID: A11091809

    Other facts

    • Construction Materials: Concrete Block Construction

    • Laundry Features: In Garage

    • Lot Features: 1/4 To Less Than 1/2 Acre Lot

    • Patio And Porch Features: Deck / Patio

    • Pool Features: In Ground / Concrete

    • Direction Faces: West

    • Architectural Style: Detached / One Story

    • Waterfront: Yes

    • Garage Spaces: 1

    • Attached Garage: Yes

    • Garage: Yes

    • Living Area: 3202

    • Water Source: Municipal Water

    • Subdivision Name: MASHTA ISLAND A REPLAT OF

Private inquiry
Talk to the advisor on this listing.
Floor plans, HOA docs, off-market comparables, scheduling a private showing — one message, direct to the local specialist.

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Market around this address

Live counts in the same area.
View all
This zip
33149
161
median $2.6M
Active
Same city
Key Biscayne
160
median $2.6M
Active
Same type
House
49
median $7.0M
Active
Similar price
$5.5M – $10.3M
20
median $6.9M
Active

The multiple listing information is provided by the Miami Association of REALTORS® from a copyrighted compilation of listings. The compilation of listings and each individual listing are ©2026-present Miami Association of REALTORS®. All Rights Reserved. The information provided is for consumers' personal, noncommercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. All properties are subject to prior sale or withdrawal. All information provided is deemed reliable but is not guaranteed accurate, and should be independently verified. Listing courtesy of: Fortune International Realty Key Biscayne Inc