Neighborhood · Marathon, Florida
Key Colony Beach 2nd Addition
Small-scale island living on Marathon's canals
2
Homes for sale
$492,000
Median list price
$513
Avg price / sqft
226
Median days on market
Key Colony Beach 2nd Addition sits in the middle of the Florida Keys, where the pace slows to match the water. Every active home here is on the waterfront and comes with a pool, so this is a neighborhood built for people who want boat access and easy afternoons rather than square footage. It's a compact pocket of Marathon homes for sale, close to the schools families rely on like Marathon School and Stanley Switlik Elementary School.
The market here is thin and patient, which is normal for a small Keys enclave. There are just 2 active listings right now with a median list price of $492,000, and homes take their time — the median days on market is 226. If you're serious, check the live map often, because inventory this limited moves on its own schedule.
Key Colony Beach 2nd Addition is a community in Marathon, Florida.
Quick facts
$399,000 – $585K price range
960 sqft median home
1 sold in 12 months
On the market now
Homes for sale in Key Colony Beach 2nd Addition
$399,000
101 11th Street # 19, Marathon FL 33050, MARATHON
2 bd · 2 ba · 960 sqft
$585,000
101 11th Street # 35, Marathon FL 33050, MARATHON
2 bd · 1.5 ba · 960 sqft
Every active listing inside the Key Colony Beach 2nd Addition boundary
Open full map search →Find your fit
Browse Key Colony Beach 2nd Addition
By feature — on the live map
Where the market lives
The numbers that matter
The Key Colony Beach 2nd Addition market
1
Sold, last 12 months
$2,237,500
Median sold price
95%
Sale-to-list ratio
What sellers actually get vs asking
78 days
Median time to sell
Key Colony Beach 2nd Addition vs Marathon
Median list price
Price per sqft
Days on market
Live Stellar MLS data — every listing and closed sale inside the Key Colony Beach 2nd Addition boundary. Rolling medians smooth single-month swings in small communities.
For the school run
Schools Key Colony Beach 2nd Addition is zoned for
Attendance boundaries overlapping this community — always verify zoning with the district.
What it really costs
Owning here
Owning the median Key Colony Beach 2nd Addition home
≈ $2,914/mo
$492,000 median · 20% down · 30-yr fixed at 6.9% · taxes/HOA from live listing data · insurance is a Florida estimate.
Population
140
Median age
75
Median income
$116,875
Median home value
$1,136,900
Beyond the listings
Living in Key Colony Beach 2nd Addition
Hobbies & Interests
Top 11% in the U.S.Wanderlust
Always thinking about their next destination, this population loves exploring new places abroad or right in their own backyard. They hold onto past trips by sharing their favorite memories and pictures year round.
Culture
Top 13% in the U.S.Sites to See
This population finds the most beautiful sites just by looking up. Sunrise, sunset or sometime in between, these people love to marvel at man-made and natural wonders.
Lifestyles
Top 16% in the U.S.Wealth Signaling
Interested in the finer things life has to offer, this population wants to display their lifestyle by discussing luxury products. Often references jewelry, cars, and home features.
Relationships
Happily Ever After
Whether it's the stress of wedding planning or looking back on that special day, this population has their eyes and hearts focused on lifelong commitment.
Beliefs
Local Engagement
These citizens want to make their neighborhood a better, more beautiful place to live. They're attentive to the needs and affairs of the local community.
Entertainment
Live & Local Music
This population follows the music. From local bands to current acts at the local venue, you can find these people researching band tours and how to get backstage passes.
Straight answers
Key Colony Beach 2nd Addition FAQs
Is Key Colony Beach 2nd Addition a good place to live?+
It suits buyers who want water access and a quiet, small-scale Keys setting — every active home here is waterfront with a pool. Families have nearby options in Marathon School and Stanley Switlik Elementary School. The trade-off is size: homes here run around 960 sqft, so it leans toward simplified island living.
Is it expensive to buy here?+
Prices are moderate for waterfront Keys property, with a median list price of $492,000 and active listings ranging from $399,000 to $585,000. At roughly $513 per square foot, you're paying for location and water access more than living space.
What do homes cost in Key Colony Beach 2nd Addition?+
Right now the two active listings sit between $399,000 and $585,000, with a $492,000 median. Note that the single sale in the past 12 months closed much higher at $2,237,500, which reflects a larger or premium waterfront property rather than the typical range you'll see today.
How is the market here?+
It's small and slow-moving, which is typical for a Keys micro-neighborhood — just 2 active listings and only 1 sale in the last 12 months. The median days on market is 226, and sellers are getting about 95% of asking on average. Watch the live map so you don't miss new inventory.
What about HOA fees and property taxes?+
Property taxes are low, with a median of about $1,339 per year. HOA data isn't available for the current listings, so confirm any dues or restrictions directly on the specific property you're considering.
Neighborhood boundary by edgeAI; listings matched to the polygon. 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. Data is deemed reliable but is not guaranteed accurate by Stellar MLS.
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