10999 3rd Ave, Marathon, FL 33050
FOR SALE
NEW - 1 DAY AGO

10999 3rd Ave
Marathon, FL 33050

  • 2 Beds
  • 3 Baths
  • 1,247 sqft

$1,700,000

Est. Mortgage $9,753/mo*
Get Pre-Qualified

$1,700,000

Est. Mortgage $9,753/mo*
Get Pre-Qualified
2 Beds
3 Baths
1,247 sqft

Local Information

Map showing home location
© Google
-- mins to
Commute Destination

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.

Home Highlights

Parking
Open Parking
Outdoor
Pool
View
Canal
HOA
None
Price/Sqft
$1,363
Listed
154 days ago

Home Details for 10999 3rd Ave

Interior Features

Interior Details
Number of Rooms: 1
Beds & Baths
Number of Bedrooms: 2Number of Bathrooms: 3Number of Bathrooms (full): 3
Dimensions and Layout
Living Area: 1247 Square Feet
Appliances & Utilities
Appliances: Dishwasher, Electric Range, Refrigerator, WasherDishwasherRefrigeratorWasher
Heating & Cooling
Heating: Central,ElectricHas CoolingAir Conditioning: Central Air,ElectricHas HeatingHeating Fuel: Central
Windows, Doors, Floors & Walls
Window: High Impact Windows, Impact GlassDoor: High Impact Doors
Levels, Entrance, & Accessibility
Stories: 2Number of Stories: 2Levels: Two
View
Has a ViewView: Canal

Exterior Features

Exterior Home Features
Roof: MetalOther Structures: LivableExterior: BalconyHas a Private Pool
Parking & Garage
No GarageHas Open ParkingParking: Driveway
Pool
Pool: Private PoolPool
Frontage
WaterfrontWaterfront: Canal Front, Canal, Ocean AccessOn Waterfront
Water & Sewer
Sewer: Public Sewer, Public Sanitation, Sewer
Farm & Range
Frontage Length: 205Not Allowed to Raise Horses
Surface & Elevation
Elevation Units: Feet

Days on Market

Days on Market: 154

Property Information

Year Built
Year Built: 1977
Property Type / Style
Property Type: ResidentialProperty Subtype: Single Family ResidenceStructure Type: HouseArchitecture: House
Building
Building Name: Key Colony Sub 4Construction Materials: Concrete Block Construction
Property Information
Parcel Number: 00335550000000

Price & Status

Price
List Price: $1,700,000Price Per Sqft: $1,363
Status Change & Dates
Possession Timing: Funding, Long Closing Preferred, Negotiable

Active Status

MLS Status: Active

Media

Location

Direction & Address
City: MarathonCommunity: Key Colony Sub 4, Key Colony

Agent Information

Listing Agent
Listing ID: F10543646

Community

Community Features: None, No Subdiv/Park Info

HOA

Association for this Listing: BeachesMLSNo HOA

Lot Information

Lot Area: 10125 sqft

Listing Info

Special Conditions: Short Sale

Offer

Listing Terms: All Cash

Miscellaneous

Mls Number: F10543646Water ViewWater View: Canal

Additional Information

HOA Amenities: Boat Dock,NoneSource Internet Entire Listing Display
Last check for updates: about 11 hours ago
Listing courtesy of Kenneth L Beckett, (954) 815-8818
Beckett Realty Advisors, LLC
Originating MLS: BeachesMLS
Source: MIAMI, MLS#F10543646
Also Listed on BeachesMLS, BeachesMLS.

Market trends in Marathon

Last updated April 2026
Buyer'sMarketSeller'sMarket
Avg. sale price
—
Sale-to-List Price
—
Price per sq ft
—
Available listings
274
26MoM

Price History for 10999 3rd Ave

DatePriceEventSource
01/06/2026$1,700,000Listed For SaleBeachesMLS #F10543646
08/07/2023$988,000Sold
N/A
08/19/2022$1,225,000Sold
FLKMLS #599206
08/03/2022$1,699,999PendingFLKMLS #599206
08/03/2022$1,699,999PendingToActiveKey West AOR #599206
06/17/2022$1,699,999ContingentKey West AOR #599206
02/02/2022$1,699,999PriceChange
Key West AOR #599206
01/15/2022$1,699,000Listed For SaleFLKMLS #599206
05/06/2008$580,000Sold
N/A
09/05/1995$213,000Sold
N/A

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Property Tax and Assessment

Year2025
Tax$10,682
Assessment$1,113,907
Home facts updated by county records

Comparable Sales for 10999 3rd Ave

Address
Distance
Property Type
Sold Price
Sold Date
Bed
Bath
Sqft
11280 1st Ave, Marathon, FL
0.11
Single-Family Home
$982,000
12/04/25
3
2.5
1,842
11270 3rd Ave, Marathon, FL
0.10
Single-Family Home
$1,260,000
06/01/26
3
2
1,424
11284 3rd Avenue Ocean Ave, Marathon, FL
0.23
Single-Family Home
$1,100,000
08/18/25
3
2
1,152
208 E Bruce Ct, Marathon, FL
0.58
Single-Family Home
$985,000
03/11/26
2
3
1,080
11282 2nd Ave, Marathon, FL
0.21
Single-Family Home
$875,000
08/26/25
2
2
1,038
11257 5th Ave, Marathon, FL
0.10
Single-Family Home
$1,450,000
06/30/25
4
3.5
2,565
298 116th St, Marathon, FL
0.32
Single-Family Home
$1,055,000
06/08/26
2
2
808
11243 3rd Ave, Marathon, FL
0.07
Single-Family Home
$1,500,000
10/16/25
5
4
2,416
10824 1st Ave, Marathon, FL
0.09
Single-Family Home
$475,000
10/09/25
2
2
783

Nearby homes

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Assigned Schools

These are the assigned schools for 10999 3rd Ave.
View nearby schools on GreatSchools
The GreatSchools Rating compares schools on a variety of school quality indicators including test scores, college readiness, equity and more. Learn more.

What Locals Say about Marathon

At least 61 Trulia users voted on each feature.

  • 83 % Say car is needed

  • 79 % Say people would walk alone at night

  • 76 % Say parking is easy

  • 72 % Say it's quiet

  • 70 % Say it's dog friendly

  • 70 % Say yards are well-kept

  • 68 % Say there's holiday spirit

  • 61 % Say it's walkable to restaurants

  • 53 % Say there's wildlife

  • 53 % Say they plan to stay for at least 5 years

  • 51 % Say there are community events

  • 48 % Say kids play outside

  • 44 % Say neighbors are friendly

  • 37 % Say it's walkable to grocery stores

  • 36 % Say there are sidewalks

  • 29 % Say streets are well-lit

Sourced by Trulia users. Learn more about our methodology.
  • 4yrv5tc4qr
    "Seafood festival, theater, music festival, turtle releases, homecoming parade, 4th of July fireworks on the beach"
    1
    Flag
  • Ingridfox
    "people love walking dogs on the beach and dog dog park at Sombrero Beach. A lot of restaurants are dog friendly. This is a great place for dog owners. "
    1
    Flag
  • C E.
    "There is no place for kids to hang out really except for the skate park. There are no malls, no skating rinks, no places for kids to meet safely. "
    1
    Flag
  • Jan M.
    "We have basic public transportation. I’d take a taxi anywhere in town. .............................,,"
    0
    Flag
  • Erin F.
    "There’s plenty of grass, sidewalks and quiet roads to walk along.. plus the public beach is always a dogs favorite adventure.. just pick up after your dog!"
    2
    Flag
  • Thurmankolb
    "Yes! Dog park just down the street. Lots of neighbors know each other by our dogs. Great vets n Marathon and good groomer."
    6
    Flag
  • Thurmankolb
    "Lots of community events and activities. Fishing tournaments, seafood festival, school carnivals, etc... "
    2
    Flag
  • Jamie B.
    "Everyone gets together for the kids at Halloween. We have a community park with special events planned for the kids and the beach is the sight for a special 4th of July. "
    0
    Flag
  • Abiezer31
    "Of course ,the neighbors the owner and dog are very nice I’m very proud living in my house.and this neighborhood "
    3
    Flag
  • Darren S.
    "I live off the beaten path across the street from a golf course. It's very quiet and tranquil. throb marinas surrounding the property and can walk to All shops and stores."
    0
    Flag
  • Cyndiepalmer
    "We are a friendly neighborhood. You walk your street and say Hi anytime. It is a safe street to live "
    0
    Flag
  • Ksperkinson
    "Safe clean near ocean good police pet friendly hospital is coming along in the construction have contract here at hospital looking forward to finding a good place for 3 months"
    0
    Flag
  • Stephanie M.
    "A lot of kids and cars. A fire station that is noisey but nice. Lizards everywhere. There is one hotel on this small island. There are A lot of Vacation homes here and crab catchers. When it rains you can't see the road."
    0
    Flag
  • Lb2071
    "water front community , is a small island called Flamingo Island. We have a 9 hole golf course and just 5 minutes from Publix and Kmart. Sombrero beach is right at the outset of the canals on the Atlantic ocean and the people are very loving and friendly."
    0
    Flag
  • Gonzalez8834
    "Marathon is a great place to life and have a family, very safe, quiet and full of great people. ......"
    0
    Flag
  • Tom A. C. M.
    "I live here (14 years) and love the area. Close accessibility to shopping, schools, churches, golf, beach, walking, biking. "
    0
    Flag
  • Anne K.
    "Lived here for many years and is one of the best places to live in Marathon. Conveniently located near schools, parks, shopping and beach just minutes away."
    0
    Flag
  • Debra G.
    "Only 8 miles from Marathon. Away from the winter traffic, airport noise. Crystal clean, flow through canals. Great place to vacation and a great place to live. "
    0
    Flag

LGBTQ Local Legal Protections

Kenneth L Beckett, Beckett Realty Advisors, LLC
Agent Phone: (954) 815-8818
IDX information is provided exclusively for personal, non-commercial use, and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Information is deemed reliable but not guaranteed.
10999 3rd Ave, Marathon, FL 33050 is a 2 bedroom, 3 bathroom, 1,247 sqft single-family home built in 1977. This property is currently available for sale and was listed by MIAMI on Jun 9, 2026. The MLS # for this home is MLS# F10543646.