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$1,525,000 Just Listed

  • For Sale
  • Active
  • Condo
  • 2 Beds
  • 2 Full Baths
  • 1 Partial Bath
  • 2,004 Sq. Ft.
  • Updated 3 hours ago
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Introducing 8401 Gulf of Mexico Blvd #8401, an exceptional waterfront penthouse with Boat Slip #23, located in the prestigious Seawatch community of Marathon, Florida. Renovated in 2023 and meticulously maintained since, this top floor residence offers an impressive combination of comfort, style, boating access and one of the most captivating open water views in the community. From the moment you step inside, expansive impact windows frame breathtaking Gulf views and fill the living space with natural light. The spacious layout features two generous suites, an open living and dining area and a clean coastal feel designed for relaxed Florida Keys living. The 2023 renovation included thoughtful updates to the kitchen, bathrooms, flooring and interior finishes. The kitchen offers updated cabinetry and appliances, while the remodeled bathrooms feature updated tile and showers, creating a move in ready residence that has been carefully improved and maintained. Seawatch is known for one of the most impressive amenity packages in the Middle Keys, including a gated entrance, marina, resort style pool and spa, cabanas, fitness center, clubhouse/event room, tennis & pickleball courts, elevators, tropical landscaping, natural habitat areas, lake and generous open space rarely found in a condo community. Complete with protected dockage and a premier waterfront setting, this Seawatch penthouse is ideal as a full time residence, seasonal retreat, or low maintenance Florida Keys getaway. Enjoy boating, views, privacy and resort style amenities all in one of Marathon's most desirable waterfront communities.

Full Property Details for 8401 Gulf of Mexico Blvd #401

General

  • Price: $1,525,000
  • HOA FEE: $2,219/month
  • HOA FEE FREQ.: Quarterly
  • Taxes: $7,534 (2025)
  • Status: Active
  • Type: Condo
  • Source: 927
  • MLS ID: 620503
  • Updated: Today (7/2/2026)
  • Added to Site: Today

Interior

  • Interior Features: Walk-in Closet(s), Bar, Built-in Cabinets, Pantry, Split Bedroom, Storage, Gym
  • Appliances: Stainless Steel Appliance(s), Dishwasher, Dryer, Microwave, Oven, Refrigerator, Washer
  • Flooring: Tile

Rooms

Bathrooms

  • Total Bathrooms: 3
  • Full Bathrooms: 2
  • Half Bathrooms: 1

Bedrooms

  • Total Bedrooms: 2

Additional Information

  • Shared Amenities: Other Area Features, Manager on Premises, Bike Paths, Clubhouse, Pool, Airport/Runway
  • Pool: Yes
  • Pool Description: Concrete, Heated, In Ground
  • Security/Safety: Electric Gate, Secured Building

Exterior

  • Exterior Features: Tennis Court(s), Lighting, Chickee Hut, Fencing, Fruit Tree(s), Outdoor Shower, Storage, Boat Slip

Parking

  • Parking Features: Open, Guest, Off Street, Covered, Assigned

Location

  • Area: 16 - Sombrero Bch Rd to Vaca Cut - Oceanside
  • County: Monroe
  • Subdivision: Seawatch (53.5)
  • Driving Directions: From US-1, turn onto 117th Street, then right onto Gulf of Mexico Blvd. Once through the gate, take the second right toward Building #8

Community

  • Association: Yes
  • Assoc. Fees Include: Bldg Exterior Mnt, Building Insurance, Common Area Mnt, Exterminating, Security
  • Pets Allowed: Yes

Heating & Cooling

  • Central air: Yes
  • Air Conditioning: Yes
  • Cooling Type: Central Air, Ceiling Fans(s)

Structural Information

  • Architectural Style: Above Flood
  • Construction Status: Updated/Remodeled
  • Construction: CBS, Concrete
  • Roof: Concrete
  • Windows/Doors: Impact Rstnce Window, Shutters
  • Square Feet: 2,004
  • Sq. Ft. Source: Property Data Card
  • Year Built: 1983
  • Property Condition: Updated/Remodeled

Unit Information

  • Unit Type: Unit

Lot Features

  • Property View: Harbor/Marina View, Open Water View, Ocean, Bay
  • Lot Dimensions: x
  • Zoning: RM-1 - Residential Medium - 1

Water Features

  • Water Front: Yes
  • Water View: Yes
  • Water Front Desc.: Bay Front, Canal Front, Gulf Front, Open Water

Financial Considerations

  • Association Fee: Yes
  • Association Fee: $6,657
  • Assoc Fee Freq.: Quarterly
  • Tax Amount: $7,534.06
  • Tax Year: 2025

Disclosures and Reports

  • Legal Description: Unit 401 Seawatch At Marathon-Phase I A Condominium Bldg 8 & 1.428000% Common Elements
  • APN: 104131002900

Listed by Coldwell Banker Schmitt Real Estate Co., Jesus Parra (786) 282-9281

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Listing agent

— 8401 Gulf of Mexico Blvd #401 —

  • Jesus Parra

    Coldwell Banker Schmitt Real Estate Co.

Get Pre-Approved Today

Be ready to buy your new home!

with our affiliated lender
NMLS#: 1598647

Get Pre-Approved

Be ready to buy your new home!

with our affiliated lender
NMLS#: 1598647

Get Pre-Approved

Schools serving 8401 Gulf of Mexico Blvd #401

School District:Monroe County School District, Middle Torch Key, FL
NameGradesDistance
Stanley Switlik Elementary School
3400 Overseas Highway, Marathon, FL 33050
PK-54.3 mi
Marathon School
350 Sombrero Beach Road, Marathon, FL 33050
6-123.6 mi
Disclaimer: School attendance boundaries provided by ATTOM Data Solutions and are for reference only. Contact the school directly to verify enrollment eligibility.

Price & Sales History for 8401 Gulf of Mexico Blvd #401 Get Price Alerts and Save Property

Date
Details
Price
Change
Source
7/02/2026
Listed
$1,525,000
29.79%
MLS
6/08/2022
Sold
$1,175,000
—
Public Record
Get Price Alerts and Save Property
Disclaimer: Historical sales information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.

Tax History for 8401 Gulf of Mexico Blvd #401

Year
Property Taxes
Change
Tax Assessment
Change
2025
$7,534
-24%
$809,539
-22%
2024
$9,968
7%
$1,040,705
10%
2023
$9,294
305%
$944,630
431%
2021
$2,293
-37%
$177,971
-71%
2022
$3,635
46%
$611,402
202%
2019
$2,498
3%
$202,649
—
2018
$2,417
-22%
$202,649
-26%
2017
$3,086
-3%
$274,014
—
2016
$3,171
—
$274,014
—
2015
$3,177
-11%
$274,014
-10%
2014
$3,553
3%
$304,460
5%
2013
$3,433
—
$289,962
—
View All
Disclaimer: Historical tax information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.

Estimate the Cost for 8401 Gulf of Mexico Blvd #401

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NMLS#: 1598647

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Listed by Coldwell Banker Schmitt Real Estate Co., Jesus Parra (786) 282-9281

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8401 Gulf Of Mexico Boulevard #401, Marathon, FL 33050 (MLS# 620503) is a Condo property with 2 bedrooms, 2 full bathrooms and 1 partial bathroom. 8401 Gulf Of Mexico Boulevard #401 is currently listed for $1,525,000 and was received on July 02, 2026. Want to learn more about 8401 Gulf Of Mexico Boulevard #401? Do you have questions about finding other Condo real estate for sale in Marathon? You can browse all Marathon real estate or contact a Coldwell Banker agent to request more information.

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