509 United St, Key West, FL 33040
OFF MARKET

509 United St
Key West, FL 33040

Upper Duvall
  • Studio

$1,338,500

Trulia Estimate
as of Aug 23, 2026
Est. Refi. Payment $7,885/mo*

$1,338,500

Trulia Estimate
as of Aug 23, 2026
Est. Refi. Payment $7,885/mo*
Studio

Home Value

Trulia Estimate
$1.34M
Since last month
Decreased$68K (-4.8%)
Since last year
Increased$88K (+7%)
Learn more about this home's value by checking out its Trulia Estimate, the value of nearby homes, and how much similar homes have sold for.

Trulia Estimate

The of this home's value decreased by -19% in the last 10 years
MonthEstimated value
2026
August 2026$1.34M
July 2026$1.41M
June 2026$1.36M
May 2026$1.35M
April 2026$1.48M
March 2026$1.62M
February 2026$1.82M
January 2026$1.21M
2025
2024

Comparable sales

These are recently sold homes that have a similar location or other similar features to this home, like bedrooms, bathrooms, and square footage. Get a sense of the expected prices in the area by viewing these homes.
Address
Distance
Property Type
Sold Price
Sold Date
Bed
Bath
Sqft
0.09
Single-Family Home
$4,300,000
04/09/26
4
4.5
3,624
0.09
Single-Family Home
$2,200,000
10/15/25
3
3
1,391
0.09
Single-Family Home
$2,765,000
02/25/26
1
1
1,064
0.09
Single-Family Home
$2,500,000
07/15/26
2
2.5
1,120
0.11
Single-Family Home
$4,225,000
03/16/26
5
5.5
3,434
0.13
Single-Family Home
$1,300,000
06/24/26
3
2
1,051
0.13
Single-Family Home
$1,725,000
04/22/26
3
3
1,750
0.14
Single-Family Home
$2,180,000
03/24/26
3
3.5
1,820
0.15
Single-Family Home
$1,442,400
06/26/26
2
2
837
0.16
Single-Family Home
$3,050,000
04/07/26
4
2.5
1,440

Nearby home prices

Get a sense of expected prices in the area by checking the value of nearby homes.
Address
Distance
Price
Bed
Bath
Sqft
Status
0.03
$750,000
2
2
712
For Sale
0.04
$821,000
2
2
888
Off Market
0.07
$3,700,000
3
3.5
1,366
For Sale
0.06
$1,552,700
5
4
-
Off Market
0.09
$2,500,000
2
2.5
1,120
Recently Sold
0.09
$2,765,000
1
1
1,064
Recently Sold
0.08
$1,238,500
2
2
877
Off Market
0.09
$2,196,900
3
3
1,391
Off Market
0.11
$4,225,000
5
5.5
3,434
Recently Sold
0.08
$4,173,000
5
3.5
3,042
Off Market
0.09
$4,300,000
4
4.5
3,624
Recently Sold
0.13
$1,425,000
2
2
1,092
Recently Sold

Local Information

  • Map ViewExplore the area around 509 United St.
  • Schools1 Preschool School1 Elementary School1 Middle School1 High School
  • Shop & Eat
-- mins to
Commute Destination

About this House

509 United St is in the Upper Duvall neighborhood in Key West, FL and in ZIP code 33040.
509 United St, Key West, FL 33040 is a studio property in Upper Duvall. It is currently off market. The Trulia Estimate is $1,338,500, with a rent estimate of $4,631/month.

Market trends in Key West

Last updated July 2026
Buyer'sMarketSeller'sMarket
Avg. sale price
$1.28M
$50K
MoM
Sale-to-List Price
95.1%
0.5%
MoM
Price per sq ft
$933
$26
MoM
Available listings
271
17
MoM

Neighborhood Overview

Neighborhood stats provided by third party data sources.

What Locals Say about Upper Duvall

At least 25 Trulia users voted on each feature.
  • 90 % Say it's walkable to restaurants

  • 87 % Say it's dog friendly

  • 77 % Say there are sidewalks

  • 74 % Say it's walkable to grocery stores

  • 74 % Say people would walk alone at night

  • 72 % Say streets are well-lit

  • 60 % Say there's holiday spirit

  • 59 % Say yards are well-kept

  • 58 % Say it's quiet

  • 52 % Say there's wildlife

  • 44 % Say they plan to stay for at least 5 years

  • 43 % Say there are community events

  • 41 % Say kids play outside

  • 38 % Say neighbors are friendly

  • 22 % Say parking is easy

  • 10 % Say car is needed

Sourced by Trulia users. Learn more about our methodology.
  • Trulia User
    "Sunset Carnival and walkability. Beautiful houses and sidewalks. Many houses have gardens and are very well maintained. "
  • Trulia User
    "Very beautiful, most people are really nice and cordial. Also very walkable to shops, the marina, and restaurants/bars. But I am just visiting and walking around for a few days."
  • Marjoe55
    "We live on Shanty Creek, wish flows into Maumee bay. We face East on a tiny peninsula of forty houses."

LGBTQ Local Legal Protections

Frequently asked questions about 509 United St

  • What is 509 United St estimated to be worth?
    Trulia's estimated value for 509 United St in Key West, FL is $1,338,500.
  • Is Key West a buyer's or seller's market?
    Key West is currently a buyer's market, based on recent for-sale activity.
  • What's the median sale price in Key West?
    The median sale price in Key West is $1.28M. That is up $50K from the prior month.
  • What do residents say about the Upper Duvall neighborhood?
    Residents describe the Upper Duvall neighborhood in Key West, FL as walkable to restaurants, dog-friendly, and pedestrian-friendly. See recently sold homes in Upper Duvall, Key West.

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Apartments for Rent

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Off Market Homes Near 509 United St

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Homes for sale near 509 United St

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