10999 Ave 3rd Avenue, Marathon FL 33050 | 2 Bed Home for Sale | Brickellsold

Price History

Event	Price	Date
Original list price	$1,700,000	Jan 6, 2026

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10999 Ave 3rd Avenue, Marathon FL 33050

Marathon , Monroe County

2-Bed Single Family Residence at Key Colony Sub 4,Key Colony in Marathon

$1,700,000

Brickellsold Estimate* (fallback: list price)$1,700,000 (list price)

For Sale

bedrooms

bathrooms

Square Footage

1247

Type of Property

Single Family Residence, Residential

Details

Overview

Sub Type

Single Family Residence

Price Per Sqft

$1,363/sqft

Built In

1977

Taxes

$10,682/yr

Description

Unapproved Short Sale for Non-Conforming 2 Bed/3 Bath Waterfront Home in Marathon. Large corner lot with 205 feet of water frontage. First floor has non-conforming addition of 2 bedrooms and living area. Second floor nicely updated with renovated kitchen, baths and impact windows throughout.

This single family residence home located at 10999 Ave 3rd Avenue, Marathon FL 33050 is currently for sale and has been available on Brickellsold for 166 days. This property is listed at $2M. It has 2 beds, 3 bathrooms, and is 1247 square feet. It was built in 1977. 10999 Ave 3rd Avenue, Marathon FL 33050 is in Marathon county Monroe County.

Interior

Bedrooms

Bathrooms

Bathrooms Full

Features

Flooring:
Common walls with other units/homes: Two Story

Heating

Central, Electric

Cooling

Central Air, Electric

Appliances

Dishwasher, Electric Range, Refrigerator, Washer

Total interior livable area

1,247 sqft

Property

Parking

Parking Features: Driveway

Parcel Number

00335550000000

Features

Entry location: Other
Exterior Features: Open Balcony
Has View: Yes
View Description: Canal, Canal View

Construction

Property subtype

Single Family Residence, Residential

Materials

Concrete Block Construction

Condition

Year Built: 1977

Community & HOA

Community

Security Features:
Subdivision: Key Colony Sub 4,Key Colony

HOA

Amenities: Boat Dock, None, Private Pool

Region

Marathon

Financial

Price Per Sqft

$1,363/sqft

Taxes

$10,682/yr

On Market Date

12/31/2025

Listing Terms

All Cash

Metadata

Added

1/6/2026

Updated

6/16/2026

MLS#

F10543646

Days on Market

166

Listed By

Beckett Realty Advisors, LLC

Originating MLS

BeachesMLS