4,478 Sq. Ft.
$758 / Sq. Ft.
4,478
Sq. Ft.
$758
per Sq. Ft.

Description

Exceptional canal-front opportunity with proven income potential. This expansive 7-bedroom, 7-bath residence offers outstanding flexibility as a legal duplex with an interior lockout, allowing it to function seamlessly as a large single-family home or as two separate living spaces. The configuration includes a generous 5BR/4BA main residence paired with a private 2BR/2BA guest wing, topped off by a convenient pool bath located in the game room, making it ideal for multigenerational living, guests,...Exceptional canal-front opportunity with proven income potential. This expansive 7-bedroom, 7-bath residence offers outstanding flexibility as a legal duplex with an interior lockout, allowing it to function seamlessly as a large single-family home or as two separate living spaces. The configuration includes a generous 5BR/4BA main residence paired with a private 2BR/2BA guest wing, topped off by a convenient pool bath located in the game room, making it ideal for multigenerational living, guests, or vacation rental use. The main living space welcomes you with a dramatic two-story entry, an open-concept great room, multiple dining areas, wet bar, and a well-appointed kitchen that flows to a waterside balcony. The lower-level unit features its own open living and kitchen area, providing privacy and versatility. Four bedrooms are ensuite, complemented by 2 primary suites overlooking the water. Recent upgrades include complete concrete spalling repairs and a fresh exterior repaint, adding peace of mind and refreshed curb appeal. Mediterranean-inspired design elements are carried throughout, along with impact windows and doors, multiple balconies, and inviting indoor-outdoor living spaces. Outside, enjoy a heated pool, spa, covered poolside lanai, and 75 feet of concrete dockage with quick boating access to both the Atlantic Ocean and the Gulf of America. Additional features include a two-car garage and ample off-street parking. This property has a strong, established vacation rental history and is currently an active rental.
  1. Listed by Nate Bartlett • Berkshire Hathaway HomeServices Keys Real Estate

Property Details for 580-590 10th Street

Waterfront
Canal Front
Waterfront
Yes
Zoning
R-2A - Key Colony Two Family
Subdivision
Key Colony Bch 1st Addn Amd Plat (53.5)
Directions
From HWY 1 travel down Sadowski Cswy, turn right on West Ocean, turn right on 10th St, house is on the right midway down 10th.
Vehicle Storage
Garage, Off Street Parking, Guest Parking
Pets
Pets Allowed
LISTING UPDATED: 02/07/2026 08:09 PM

Property Details for 580-590 10th Street

StatusActive
MLS #617788
Days on Market60
Taxes$19,308 / year
HOA Fees-
Condo/Co-op Fees-
Compass TypeMulti Family
MLS TypeResidential / Duplex
Year Built1985
Lot Size0.19 AC / 8,250 SF
CountyMonroe County

Location

Listing Courtesy of Berkshire Hathaway HomeServices Keys Real Estate
Add your commute

Building Information for 580-590 10th Street

Stories2Residences-Year Built1985Building Size-Lot Size0.19 AC / 8,250 SF

Payment Calculator

$18,156 per month

30 year fixed, 6.15% Interest

Principal and Interest

$16,547

Property Taxes

$1,609

HOA Dues

$0

The Payment Calculator is for illustrative purposes only.

Property Information for 580-590 10th Street

Summary
Location and General Information
  • Waterview: Canal View
  • Area: 17 - Vaca Cut - Both Sides Holiday Inn/Key Colony
  • Absolute Longitude: 81.024663
  • Control Depth: 5
  • Listing Board: Marathon/Lower Keys
  • Side: Ocean
  • Mile Marker: 53.5
  • Marathon Neighborhood: Marathon East - Gulf (Airport to Vaca)
  • Neighborhood Feature: Tennis Courts, Bike Paths, Beach
  • Key/Island: Key Colony
Taxes and HOA Information
  • Association Info: Mandatory Home Owners Asc: No
  • Association Info: 1st Right of Refusal: No
  • Fee Includes: None
  • Tax Year: 2025
  • Tax Exemptions: None
Property
Lot Information
  • Parcel #: 00075930-000000
  • Land Size: Less Than 1/4 Acre
Property and Assessments
  • Legal: BK10 LT 48 KEY COLONY BEACH FIRST ADDN AMENDED PLAT PB-4-11 SHELTER KEY OR341-309/10 OR566-245 OR722-402 OR1394-1921D/C
  • MLS Approved: Y
  • SqFt Source: Property Data Card
  • Flood Zone: Zone AE EL 7
  • Rentals Allowed: Yes
  • Deed Restrictions: Unknown
  • Picture Count: 75
  • Document Count: 2
  • Building Style: Above Flood: Unknown
  • Security: Patrolled Area
  • Title: Title Ins - Buyer
Utilities
  • Utilities: FKAA, Elect Separate Meter, Buyer to Verify, Municipal Sewer
  • Pub Sewer HkUp: Yes
  • Pool: Yes
  • Handicap Access: No
  • Pool Info: Heated: Yes
  • Pool Info: In Ground
  • Porch/Balcony: Open Porch/Balcony, Patio
Interior and Exterior Features
Interior Features
  • Floor: Tile, Carpet
  • Interior Features: Drapes/Blinds Incl, Built-in Cabinets, Window Treatments, Smoke Alarms, Granite Counter Top, Entrance Foyer, Wet Bar
  • Appliances: Washer, Stainless Steel Appliance(s), Microwave, Oven, Range, Refrigerator, Dishwasher, Dryer
Exterior Features
  • Roof: Metal Roof
  • Dockage: Dock Length: 75
  • Dockage: Dock: Concrete
  • Construction: CBS
  • Exterior Features: Fencing, Storage, Outdoor Shower, Lanai, Lighting, Hot Tub
  • Windows/Doors: Impact Rstnce Window, Impact Rstnce Doors
Room Information
  • Specialty Rooms: Laundry Room

Property History for 580-590 10th Street

DateEvent & SourcePriceAppreciation
Dec 22, 2025

Price Change

FKMLS #617788

$3,650,000
Dec 22, 2025

Listed (Active)

FKMLS #617788

$3,395,000
Dec 10, 2024

Expired

FKMLS #609274

Mar 19, 2024

Listed (Active)

FKMLS #609274

$3,980,000
Jul 15, 2014

Expired

FKMLS #560110

May 27, 2014

Sold

FKMLS #560109

$930,000
May 23, 2014

Pending

FKMLS #560109

Jan 18, 2013

Listed (Active)

FKMLS #560110

$1,245,000
Jan 18, 2013

Listed (Active)

FKMLS #560109

$1,245,000
DateEvent & SourcePrice
12/22/2025

Price Change

FKMLS #617788

$3,650,000
12/22/2025

Listed (Active)

FKMLS #617788

$3,395,000
12/10/2024

Expired

FKMLS #609274

03/19/2024

Listed (Active)

FKMLS #609274

$3,980,000
07/15/2014

Expired

FKMLS #560110

05/27/2014

Sold

FKMLS #560109

$930,000
05/23/2014

Pending

FKMLS #560109

01/18/2013

Listed (Active)

FKMLS #560110

$1,245,000
01/18/2013

Listed (Active)

FKMLS #560109

$1,245,000

For completeness, Compass often displays two records for one sale: the MLS record and the public record.

Schools near 580-590 10th Street

This home is within Monroe.
Rating
School
Type
Grades
Distance
Public - PK to 5
Public - 6 to 12
Public - 9 to 12
Charter - PK to 5
Rating
School
Distance
Stanley Switlik Elementary School
PublicPK to 5

Marathon School
Public6 to 12

Coral Shores High School
Public9 to 12

Big Pine Academy
CharterPK to 5

School ratings and boundaries are provided by GreatSchools.org and Pitney Bowes. This information should only be used as a reference. Proximity or boundaries shown here are not a guarantee of enrollment. Please reach out to schools directly to verify all information and enrollment eligibility.

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580-590 10th Street is a multi-family home for sale in Key Colony Beach, FL 33051. This property was listed for sale on December 22, 2025 by Berkshire Hathaway HomeServices Keys Real Estate, it's currently listed at $3,395,000. It has been on the market for a total of 60 days and was last sold on May 27, 2014. This listing's school district is Monroe. Nearby schools include Stanley Switlik Elementary School, Marathon School and Coral Shores High School. 580-590 10th Street is a 7-bed, 7-bath, 4,478 sqft multi-family home built in 1985.

No guarantee, warranty or representation of any kind is made regarding the completeness or accuracy of descriptions or measurements (including square footage measurements and property condition), such should be independently verified, and Compass, Inc., its subsidiaries, affiliates and their agents and associated third parties expressly disclaims any liability in connection therewith. Photos may be virtually staged or digitally enhanced and may not reflect actual property conditions. Offers of compensation are subject to change at the discretion of the seller. No financial or legal advice provided. Equal Housing Opportunity. Subject to change at any time. Compass makes no guarantee, warranty or representation regarding the accuracy of any waterfront feature, water view or waterfront view.

Listing Courtesy of Berkshire Hathaway HomeServices Keys Real Estate

Based on information from one of the following Multiple Listing Services: Beaches Multiple Listing Service, Inc., Martin County REALTORS® of the Treasure Coast, Inc., Miami Association of REALTORS®. Information being provided is for the visitor’s personal, noncommercial use and may not be used for any purpose other than to identify prospective properties visitor may be interested in purchasing. The data contained herein is copyrighted by Beaches Multiple Listing Service, Inc., Martin County REALTORS® of the Treasure Coast, Inc., Miami Association of REALTORS® is protected by all applicable copyright laws. Any dissemination of this information is in violation of copyright laws and is strictly prohibited. Property information referenced on this web site comes from the Internet Data Exchange (IDX) program of the MLS. This web site may reference real estate listing(s) held by a brokerage firm other than the broker and/or agent who owns this web site. For the avoidance of doubt, the accuracy of all information, regardless of source, is deemed reliable but not guaranteed and should be personally verified through personal inspection by and/or with the appropriate professionals.