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$600,000
Marathon, FL 33050
MLS# 622074
2 beds | 2 baths | 916 sqft
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Property Description
3.75% ASSUMABLE MORTGAGE OPPORTUNITY in Marathon (Grassy Key)! Set amid lush tropical greenery on a 7,500-square-foot corner lot, this elevated 2-bedroom, 2-bath home offers a cool tropical treehouse vibe, natural screening on three sides, and a peaceful island setting. Qualified buyers, including non-veterans, may apply to assume the existing mortgage (approx. $479,000 balance as of Nov. 2026), subject to lender approval. Buyer must fund the difference between the loan balance and purchase price, plus applicable costs. MAJOR IMPROVEMENTS: Metal roof, updated kitchen and bathrooms, and vinyl plank flooring (2017); Samsung smart washer/dryer (2021); 2.5-ton central A/C and water heater (2024); GE refrigerator and Samsung range (2025). Walls, ceilings, doors, baseboards and trim have been freshly painted in 2026. Decks were refinished, the downstairs storage room repainted, and the yard leveled and refreshed with weed-blocking fabric and decorative rock. Inside, enjoy cathedral ceilings, granite countertops, stainless appliances and an open living/dining/kitchen layout. Relax on the elevated screened front porch amid tropical foliage, or gather on the covered deck below. Two covered parking spaces plus ample yard space accommodate multiple vehicles, a boat, trailer or RV. Enclosed ground-level storage is separate from the home's living area. NO HOA! Accordion hurricane shutters and municipal sewer with no outstanding assessments. Flood Zone AE; per the 2021 elevation certificate, the elevated living level is 13.24 ft NGVD 1929 versus the documented 10-ft base flood elevation. Just a few blocks from a neighborhood park and community boat ramp, near Marathon dining, shopping and Sombrero Beach. Enjoy Florida Bay and Atlantic Ocean fishing, diving, snorkeling and boating. Offered unfurnished; primary-closet chandelier, portable bedroom A/C, TV on patio and all potted plants (Pineapples!) may remain if buyer desires. Experience the laid-back Florida Keys life
Details
Maps
Contract Information
Listing Board: Florida Keys
As is Rght to Inspct: Yes
Species List: No
Current Price: $600,000
Listing Date: 2026-11-13
List Price: $600,000
Location, Tax & Legal
City: MARATHON
Mile Marker: 58.9
Marathon Neighborhood: Grassy Key
Side: Median
Flood Zone: AE
Alternate Key #: 1455024
Handicap Access: No
Parcel #: 00371930-000000
Zoning: RM - Residential Medium
Deed Restrictions: No
Legal: BK 41 LT 16 CRAINS SUBD OF GRASSY KEY PB 1-51 PT SECS 24-25-26 TWP 65S R 33E G19-164-165 OR145-29/52 OR1033-763/765 OR91
Taxes: 4989.05
Tax Year: 2025
Pub Sewer HkUp: Yes
Street #: 309
Street Name: Avocado
Street Suffix: Avenue
Key/Island: Marathon
State/Province: FL
Zip Code: 33050
County: Monroe
Subdivision: Grassy Key (58.9)
Area: 19 - Crawl Key & Grassy Key
General Property Description
Realtor.COM Type: Residential - Single Family
Waterfront: No
Control Depth: 0
Lot Size: 60 X 125
Lot SqFt: 7500
Pool: No
Total Units: 0
Acres: 0.17
SqFt Source: Seller
Rentals Allowed: With Restrictions
Min Rental Days: 7
Style: Single Family
Year Built: 1989
Living Apx SqFt: 916
Total Bedrooms: 2
Full Baths: 2
Total Baths: 2
Remarks & Misc
Remarks – Consumer: 3.75% ASSUMABLE MORTGAGE OPPORTUNITY in Marathon (Grassy Key)! Set amid lush tropical greenery on a 7,500-square-foot corner lot, this elevated 2-bedroom, 2-bath home offers a cool tropical treehouse vibe, natural screening on three sides, and a peaceful island setting. Qualified buyers, including non-veterans, may apply to assume the existing mortgage (approx. $479,000 balance as of Nov. 2026), subject to lender approval. Buyer must fund the difference between the loan balance and purchase price, plus applicable costs.
MAJOR IMPROVEMENTS: Metal roof, updated kitchen and bathrooms, and vinyl plank flooring (2017); Samsung smart washer/dryer (2021); 2.5-ton central A/C and water heater (2024); GE refrigerator and Samsung range (2025). Walls, ceilings, doors, baseboards and trim have been freshly painted in 2026. Decks were refinished, the downstairs storage room repainted, and the yard leveled and refreshed with weed-blocking fabric and decorative rock.
Inside, enjoy cathedral ceilings, granite countertops, stainless appliances and an open living/dining/kitchen layout. Relax on the elevated screened front porch amid tropical foliage, or gather on the covered deck below. Two covered parking spaces plus ample yard space accommodate multiple vehicles, a boat, trailer or RV. Enclosed ground-level storage is separate from the home's living area.
NO HOA! Accordion hurricane shutters and municipal sewer with no outstanding assessments. Flood Zone AE; per the 2021 elevation certificate, the elevated living level is 13.24 ft NGVD 1929 versus the documented 10-ft base flood elevation.
Just a few blocks from a neighborhood park and community boat ramp, near Marathon dining, shopping and Sombrero Beach. Enjoy Florida Bay and Atlantic Ocean fishing, diving, snorkeling and boating. Offered unfurnished; primary-closet chandelier, portable bedroom A/C, TV on patio and all potted plants (Pineapples!) may remain if buyer desires. Experience the laid-back Florida Keys life
Directions: From Key Largo: US-1 S, R on Tropical Ave, R on Ferriere St, L on Avocado Ave.
From Key West: US-1 N, L on Tropical Ave, R on Ferriere St, L on Avocado Ave.
Association Info
Mandatory Home Owners Asc: No
Voluntary Home Owners Asc: No
1st Right of Refusal: No
Assoc Approval Req: No
Association Fee $: 0
Fee Includes
None: 1
Dockage
None: 1
Tax Exemptions
Homestead: 1
Appliances
Dryer: 1
Freezer: 1
Ice Machine: 1
Microwave: 1
Oven: 1
Refrigerator: 1
Stainless Steel Appliance(s): 1
Washer: 1
Pets
Pets Allowed: 1
Cooling
Ceiling Fans(s): 1
Central Air: 1
Heating
Central: 1
ENERGY STAR Qualified Equipment: 1
ENERGY STAR/ACCA RSI Qualified Installation: 1
Waterfront
None: 1
Waterview
No Waterview: 1
Floor
Vinyl: 1
Neighborhood Feature
Bike Paths: 1
Other Area Features: 1
Interior Features
Cathedral Ceilings: 1
Drapes/Blinds Incl: 1
Granite Counter Top: 1
Storage: 1
Walk-in Closet(s): 1
Property Condition
Updated/Remodeled: 1
Building Style
Above Flood: Yes
Stilt Column Height: Tall - 10Ft & Over
Windows/Doors
Other Windows/Doors: 1
Sliding Glass Doors: 1
Vehicle Storage
Covered Parking: 1
RV Parking Open: 1
Security
No Security: 1
Construction
Modular: 1
Land Size
Less Than 1/4 Acre: 1
Furnished
Unfurnished: 1
Terms
Assumable: 1
Cash: 1
Conventional: 1
No Seller Finance: 1
VA: 1
Utilities
Buyer to Verify: 1
Cable Available: 1
FKAA: 1
Municipal Sewer: 1
Porch/Balcony
Deck: 1
Patio: 1
Screened Patio: 1
Title
Title Ins - Seller: 1
Exterior Features
Storage: 1
Pre-Wired
Cable: 1
Roof
Metal Roof: 1
Financial Status
Standard Sale: Yes
Accessibility Feat
None: 1
Shutters
Accordion: 1
GF-Interior Features
Programmable Thermst: 1
Status Change Info
Status: Active
Property Features
Fee Includes: None
Tax Exemptions: Homestead
Waterfront: None
Waterview: No Waterview
Dockage: None
Property Condition: Updated/Remodeled
Vehicle Storage: Covered Parking; RV Parking Open
Furnished: Unfurnished
Cooling: Ceiling Fans(s); Central Air
Heating: Central; ENERGY STAR Qualified Equipment; ENERGY STAR/ACCA RSI Qualified Installation
Utilities: Buyer to Verify; Cable Available; FKAA; Municipal Sewer
Interior Features: Cathedral Ceilings; Drapes/Blinds Incl; Granite Counter Top; Storage; Walk-in Closet(s)
Pre-Wired: Cable
Appliances: Dryer; Freezer; Ice Machine; Microwave; Oven; Refrigerator; Stainless Steel Appliance(s); Washer
Exterior Features: Storage
Accessibility Feat: None
Construction: Modular
Shutters: Accordion
Floor: Vinyl
Roof: Metal Roof
Pets: Pets Allowed
Neighborhood Feature: Bike Paths; Other Area Features
Security: No Security
Land Size: Less Than 1/4 Acre
Terms: Assumable; Assumable; Cash; Conventional; No Seller Finance; VA
Title: Title Ins - Seller
GF-Interior Features: Programmable Thermst
Room Information
| Room Name | Length | Level | Width | Remarks |
| Full Bathroom | 96.00 | Main | 49.00 | 9' 6' into walk in shower |
| Other Room | 115.00 | Main | 3612.00 | Walk in closet of primary bedroom |
| Bedroom 1 | 115.00 | Main | 115.00 | Primary |
| Bedroom 2 | 115.00 | Main | 115.00 | Guest |
| Other Room | 45.00 | Main | 2.00 | Utility/Storage with water heater |
| Full Bathroom | 79.00 | Main | 41012.00 | Guest |
| Other Room | 74.00 | Main | 610.00 | Hallway |
| Living Room | 1612.00 | Main | 1141.20 | Vaulted Ceilings |
| Kitchen | 1312.00 | Main | 122.00 | Vaulted Ceilings |
Listing Office: Century 21 Circle- Islamorada
Last Updated: November - 15 - 2026
The data relating to real estate for sale on this web site comes in part from the Florida Keys MLS, Inc. Information provided is deemed reliable but not guaranteed. All properties are subject to prior sale, change or withdrawal. The information being provided is for consumers’ personal, non-commeral use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. IDX data is deemed reliable but is not guaranteed accurate by the MLS.