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ActiveMLS listing sourceMIAMI REALTORS® MLS
ActiveMLS® A12114232
$1,199,000

285 Tropical Avenue, Marathon, FL 33050

Beds
4
Baths
3
Sqft
3,647
Est. payment$7,567/mo
Home type
Single Family Residence
Year built
2015
Lot size
14,810 sqft
Price / sqft
$329
HOA
$0/mo
Community
CRAINS SUBD

Property description

Tucked into the natural landscape of Grassy Key, 235 Tropical Avenue offers a unique combination of space, privacy and the unhurried character that defines life in the Middle Keys. Set on a 15,000-square-foot lot in Crains Subdivision, this concrete stilted residence offers more than 3,600 square feet of living space, impact windows and doors, and generous indoor-outdoor areas designed around the Florida Keys lifestyle. An expansive open layout creates room to gather, entertain and settle in comfortably, with multiple living spaces and an easy connection to the outdoors. Lush native vegetation surrounds the property, creating a remarkable sense of privacy and seclusion. The partially fenced backyard centers around an inviting in-ground pool with waterfall, tanning shelf and water features, setting the stage for long afternoons outside and evenings under the palms. Ample parking provides room for multiple vehicles and boat trailers, an especially valuable feature for enjoying life on the water. Above it all, a rooftop observation deck captures ocean views and a beautiful perspective across Grassy Key. Watch the light change over the horizon and native birds gather around the natural salt ponds behind the property. Crains Subdivision also offers a community sunset park, while a public boat ramp is just minutes away for convenient access to the surrounding waters. Centrally positioned between Marathon, Duck Key and Islamorada.

Listing activity

Days on market
58
Listed
Aug 31, 2026
MLS listing updated
Oct 28, 2026
Feed last checked
5 minutes ago

Listed by Michaela Marie Walters · Ocean Sothebys Intl Realty

Map

Map location is based on MLS-supplied coordinates. Verify the location before relying on it.

Facts & features

Interior

Bedrooms & bathrooms

Bedrooms
4
Bathrooms
3
Bathrooms (decimal)
2.5
Full bathrooms
2
Half bathrooms
1

Rooms & features

Rooms
2
Interior features
Storage
Flooring
Laminate
Appliances
Dishwasher, Disposal, Dryer, Electric Range, Microwave, Oven, Refrigerator, Washer
Window features
Blinds, Drapes, Rods

Heating & cooling

Heating
Central
Cooling
Central Air
Property

Parking

Garage spaces
0
Carport spaces
4
Carport
Yes
Covered spaces
4
Parking features
Boat, Attached Carport, Carport, Covered, Driveway, Golf Cart Garage, Guest, RV Access/Parking
Attached garage
No

Exterior

Stories
2
Building area
8,293 sqft
Entry level
2
Patio & porch
Porch - Open, Porch
Fencing
Fenced
Pool
Yes
Pool features
Concrete
View
Ocean, Lagoon, Pool, Other
Waterfront property
No

Lot

Lot size
14,810 sqft
Lot size (acres)
0.34 acres
Zoning
is
Road surface
Paved
Construction

Type & style

Home type
Single Family Residence
Year built
2015
New construction
No

Materials

Construction
CBS
Roof
Metal
Property condition
Resale
Levels
Two
Faces
Southwest
Utilities & green energy

Utilities

Sewer
Public Sewer
Water
Public
Community & HOA

Community

Subdivision
CRAINS SUBD
MLS area
5940 - Other Florida County
MLS subarea
Other
Pets allowed
Yes
55+ community
Yes

Association

Has association
No
Estimated monthly dues
$0
Amenities
Boating
Lease details

Not reported by the listing source.

Location

Area details

City
Marathon
County
Monroe
ZIP code
33050
Manufactured home details

Not reported by the listing source.

Financial & listing details

Listing

MLS number
A12114232
Possession
Close Of Escrow
Original list price
$1,199,000
Parcel number
00372830000000
Annual property tax
$8,952
Tax year
2025
Tax legal description
SQR 47 LTS 14-15 CRAINS SUBD OF GRASSY KEY PB 1-51 PT SECS 24-25-26 TWP 65S R 33E OR377-187/88 OR1931-479/80 OR2162-249/52 OR2584-469 OR2585
Additional MLS details

Reported by the listing source

Association Amenities
Boating
Association
No
Bathrooms Total Decimal
2.5
Bathrooms Total Integer
3
Building Area Total
8293
Construction Materials
CBS
County Or Parish
Monroe
Days On Market
58
Direction Faces
Southwest
Elementary School
Stanley Switlik
High School
Coral Shores
List Price
1199000
Listing Contract Date
2026-08-31
Living Area
3647
Lot Size Acres
0.34
Lot Size Area
15000
MLSArea Major
5940 - Other Florida County
MLSArea Minor
Other
Middle Or Junior School
Marathon
Mls Status
Active
On Market Date
2026-08-31
Patio And Porch Features
Porch - Open, Porch
Photos Count
57
Postal Code
33050
Property Sub Type
Single Family Residence
Property Type
Residential
Road Surface Type
Paved
Rooms Total
2
Senior Community
Yes
Standard Status
Active
State Or Province
FL
Status Change Timestamp
2026-08-31T04:00:00Z
Stories Total
2
Subdivision Name
CRAINS SUBD
Water Source
Public
Tax Annual Amount
8952
Bathrooms Full
2
Pool Private
Yes
Bedrooms Total
4
Waterfront
No
Bathrooms Half
1
General Property Information: Senior Community
Yes

Market value

Automated estimate—No licensed valuation source connected
Estimated sales range—Ask Karim for a local market analysis
Estimated rent—No licensed rental valuation source connected

Price history

DateEventPrice
Aug 31, 2026ListedMIAMI REALTORS® MLS$1,199,000$329/sqft

Public tax history

YearProperty taxesAssessment
2025$8,952—

Payment calculator

Estimated monthly payment$7,567/moIllustrative estimate, not a loan offer.
Principal & interest
$6,221
Property taxes
$746
Insurance
$600
Association dues
$0

Live national rate context is displayed below through Mortgage News Daily’s official widget. The calculator rate remains a separate assumption until licensed machine-readable access is connected. This is not a loan offer.

Neighborhood

Area

CRAINS SUBD

Marathon · Monroe County · 33050

Climate risk

—

No licensed climate-risk source is connected.

Nearby schools

Stanley SwitlikElementary
—
MarathonMiddle
—
Coral ShoresHigh
—
School names and districts are MLS-reported when available. Verify attendance boundaries with the school district. Ratings require a licensed ratings provider.

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MLS listing source

MIAMI REALTORS® MLS · Listing courtesy of Ocean Sothebys Intl Realty. All listings featuring the BMLS logo are provided by BeachesMLS, Inc. This information is not verified for authenticity or accuracy and is not guaranteed. Copyright ©2026 BeachesMLS, Inc. IDX information is provided exclusively for consumers’ personal, non-commercial use and may be used only to identify prospective properties they may be interested in purchasing or leasing. Terms of use · Equal Housing Opportunity.