Welcome to 203 Peachtree Avenue, a well-maintained 3-bedroom, 2-bath stilt home in Grassy Key offering peaceful salt pond views and plenty of space to enjoy the Florida Keys lifestyle. Set on a rare, fully fenced double lot, this property offers an exceptional amount of outdoor space that is hard to find in the Keys. Whether you envision room for pets to roam, space to garden, additional parking for trailers and recreational vehicles, or simply enjoying the privacy of a larger homesite, this oversized property provides endless possibilities. Inside, the home features 1,456 square feet of bright, open living space with wood-look flooring, a spacious kitchen with ample cabinetry and counter space, and a convenient laundry room. Large windows and sliding glass doors fill the home with natural light while opening to the expansive wraparound porch, where you can relax and enjoy tranquil salt pond views. The elevated design offers abundant covered parking and storage below, with column height tall enough to accommodate a boat, RV, or multiple vehicles. A metal roof, concrete pilings, tropical landscaping, and a private hot tub add to the home's appeal. Located just moments from Sunset Bay Park in Grassy Key, you'll enjoy a peaceful island setting while remaining close to Marathon's restaurants, shopping, marinas, and everyday conveniences. Whether you're searching for a full-time residence, weekend getaway, or island retreat with room to spread out, this unique property combines privacy, versatility, and the laid-back Florida Keys lifestyle.
Details
MLS #
620713
Listing Type
For Sale
Style
House
Sub-Type
Resale
Status
Under Contract
Year
2006
Days On Site
30
Listing Provided By
Coldwell Banker Schmitt Real Estate Co. | Samuel Davis Williams
Features
Bed(s)
3
Bath(s)
2 Total
SQ Feet
1,456
Zoning
RM-1 - Residential Medium - 1
Acreage
0.34
Water Front
None
Property View
Pond
Taxes
Property
4878
Area Information
State
FL
County
Monroe
City
MARATHON
Zip Code
33050
Area
19 Crawl Key & Grassy Key
Community Name
Crains Sub (58.0)
Listing VS Median (in Crains Sub (58.0))
Price: $699,000
low | high
Med: $2,627,500
100% of Average
sqft: 1,456
low | high
Med: 2,298
7.82967032967% of Average
$ / sqft: $480
low | high
Med: $1,130
85.336945753997% of Average
On site: 30
low | high
Med: 79.5
37.735849056604% of Average
Sourced by Back At You
Market Activity 33050
Date
Sales
Avg $ Per SqFt
Min Sale Price
Max Sale Price
Med Sale Price
Date: Jul 2026
Sales: 2
Avg $ Per SqFt: $755.67
Min Sale Price: $160,000
Max Sale Price: $2,100,000
Med Sale Price: $1,130,000
Date: Jun 2026
Sales: 3
Avg $ Per SqFt: $632.44
Min Sale Price: $410,000
Max Sale Price: $950,000
Med Sale Price: $565,000
Date: May 2026
Sales: 17
Avg $ Per SqFt: $816.13
Min Sale Price: $170,000
Max Sale Price: $3,475,000
Med Sale Price: $570,000
Date: Apr 2026
Sales: 18
Avg $ Per SqFt: $744.05
Min Sale Price: $160,000
Max Sale Price: $3,999,999
Med Sale Price: $878,500
Date: Mar 2026
Sales: 19
Avg $ Per SqFt: $628.51
Min Sale Price: $8,500
Max Sale Price: $1,825,000
Med Sale Price: $666,500
Date: Feb 2026
Sales: 26
Avg $ Per SqFt: $669.49
Min Sale Price: $9,500
Max Sale Price: $4,495,000
Med Sale Price: $565,000
Date: Jan 2026
Sales: 13
Avg $ Per SqFt: $558.87
Min Sale Price: $255,000
Max Sale Price: $3,250,000
Med Sale Price: $815,000
Date: Dec 2025
Sales: 19
Avg $ Per SqFt: $700.61
Min Sale Price: $1,000
Max Sale Price: $4,600,000
Med Sale Price: $900,000
Date: Nov 2025
Sales: 17
Avg $ Per SqFt: $658.04
Min Sale Price: $120,000
Max Sale Price: $4,950,000
Med Sale Price: $590,000
Date: Oct 2025
Sales: 23
Avg $ Per SqFt: $796.4
Min Sale Price: $130,000
Max Sale Price: $4,500,000
Med Sale Price: $1,139,000
Date: Sep 2025
Sales: 10
Avg $ Per SqFt: $813.67
Min Sale Price: $10,600
Max Sale Price: $3,000,000
Med Sale Price: $1,012,500
Date: Aug 2025
Sales: 10
Avg $ Per SqFt: $560.94
Min Sale Price: $255,000
Max Sale Price: $2,200,000
Med Sale Price: $835,000
Sourced by Back At You
Jul 2026
Sales:
2
Avg $ Per SqFt:
$755.67
Min Sale Price:
$160,000
Max Sale Price:
$2,100,000
Med Sale Price:
$1,130,000
Jun 2026
Sales:
3
Avg $ Per SqFt:
$632.44
Min Sale Price:
$410,000
Max Sale Price:
$950,000
Med Sale Price:
$565,000
May 2026
Sales:
17
Avg $ Per SqFt:
$816.13
Min Sale Price:
$170,000
Max Sale Price:
$3,475,000
Med Sale Price:
$570,000
Apr 2026
Sales:
18
Avg $ Per SqFt:
$744.05
Min Sale Price:
$160,000
Max Sale Price:
$3,999,999
Med Sale Price:
$878,500
Mar 2026
Sales:
19
Avg $ Per SqFt:
$628.51
Min Sale Price:
$8,500
Max Sale Price:
$1,825,000
Med Sale Price:
$666,500
Feb 2026
Sales:
26
Avg $ Per SqFt:
$669.49
Min Sale Price:
$9,500
Max Sale Price:
$4,495,000
Med Sale Price:
$565,000
Jan 2026
Sales:
13
Avg $ Per SqFt:
$558.87
Min Sale Price:
$255,000
Max Sale Price:
$3,250,000
Med Sale Price:
$815,000
Dec 2025
Sales:
19
Avg $ Per SqFt:
$700.61
Min Sale Price:
$1,000
Max Sale Price:
$4,600,000
Med Sale Price:
$900,000
Nov 2025
Sales:
17
Avg $ Per SqFt:
$658.04
Min Sale Price:
$120,000
Max Sale Price:
$4,950,000
Med Sale Price:
$590,000
Oct 2025
Sales:
23
Avg $ Per SqFt:
$796.4
Min Sale Price:
$130,000
Max Sale Price:
$4,500,000
Med Sale Price:
$1,139,000
Sep 2025
Sales:
10
Avg $ Per SqFt:
$813.67
Min Sale Price:
$10,600
Max Sale Price:
$3,000,000
Med Sale Price:
$1,012,500
Aug 2025
Sales:
10
Avg $ Per SqFt:
$560.94
Min Sale Price:
$255,000
Max Sale Price:
$2,200,000
Med Sale Price:
$835,000
Samuel Davis Williams of Coldwell Banker Schmitt Real Estate Co. – (305) 289-6559 – swilliams@samdwilliams.com
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MLS Internet Data Exchange (IDX) information is provided exclusively for consumers’ personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing, and that the data is deemed reliable but is not guaranteed accurate by the Florida Keys Board of Realtors.
The data relating to real estate for sale on this web site come s in part from the Internet Data Exchange program of the Marathon and Lower Keys Association of REALTORS®, Inc. MLS. Real Estate listings held by brokerage firms other than Coldwell Banker Schmitt are marked with the MLS logo and detailed information about them includes the name of the listing broker’s office.
Samuel Davis Williams of Coldwell Banker Schmitt Real Estate Co. – (305) 289-6559 – swilliams@samdwilliams.com