NOT LISTED FOR SALE

421 United St Key West, FL 33040

Old Town Neighborhood

Estimated Value: $1,758,956 - $1,856,000

3 Beds
2.5 Baths
2,205 Sq Ft
$813/Sq Ft Est. Value

Last Sold May 06, 2021

Last sale price $1,225,000 $556 Per Sq Ft

Est. 46% increase in value since last sale

Current estimated payment $10,438/month

363 Days on Market

Highlights

  • Concrete Pool
  • Whirlpool Bathtub
  • No HOA
  • Key West Architecture
  • Granite Countertops
  • 4-minute walk to Gato Village Pocket Park

About This Home

As of May 2021

This super cute historic Old Town Key West 2,205 sq. ft. Conch-style home is perfectly positioned just steps from famous Duval Street and one block from the ocean, South Beach, and the Southernmost Point. If you're seeking the best location in Key West--walkable, vibrant, and effortless--this property is unmatched. The sun-filled first floor showcases timeless Dade County pine, cherry floors, and an open layout designed for easy island living. The spacious living and dining areas flow naturally into the chef's kitchen, complete with Silestone countertops, stainless-steel appliances and custom wood cabinetry. A cozy sitting room offers a quiet retreat, while a half bath with stackable washer/dryer adds convenience.Step outside to your private backyard oasis--lush landscaping, a covered pergola perfect for dining or lounging, and a sparkling pool create the ideal setting for relaxing or entertaining after a day exploring Old Town.The second floor offers two guest bedrooms with a shared full bath, plus a beautiful front balcony with peek-a-boo ocean views and the iconic Southernmost House--an ideal spot to unwind at sunset.The entire third floor is a luxurious primary suite, offering maximum privacy with reclaimed wood finishes, spray foam insulation, a spacious walk-in closet, and a spa-inspired bath featuring double Kohler body jets and a ceiling-mounted rain shower.Homes in this location--quiet, charming, and mere steps from Key West's best restaurants, galleries, beaches, and nightlife--are incredibly rare. This is the perfect retreat for buyers who want to enjoy the island on foot and live in the heart of everything.Come experience the best of Key West living. You will love this Old Town gem!

Last Agent to Sell the Property

Adam Melanson

Sunshine State Realty Services Listed on: 04/01/2020

Last Buyer's Agent

Adam Melanson

Coastal Collection Real Estate Inc. License #3408274

Home Details

Home Type

  • Single Family

Est. Annual Taxes

  • $8,560

Year Built

  • Built in 1928 | Remodeled

Lot Details

  • 2,214 Sq Ft Lot
  • Fenced
  • Property is zoned HDR - High Density Residential

Home Design

  • Key West Architecture
  • Frame Construction
  • Metal Roof

Interior Spaces

  • 2,205 Sq Ft Home
  • Wet Bar
  • Bar
  • Ceiling Fan
  • Skylights
  • Shutters
  • Blinds
  • Fire and Smoke Detector

Kitchen

  • Oven
  • Range
  • Microwave
  • Ice Maker
  • Dishwasher
  • Wine Cooler
  • Stainless Steel Appliances
  • Granite Countertops

Bedrooms and Bathrooms

  • 3 Bedrooms
  • Walk-In Closet
  • Whirlpool Bathtub

Laundry

  • Dryer
  • Washer

Pool

  • Concrete Pool
  • In Ground Pool

Outdoor Features

  • Balcony
  • Exterior Lighting

Utilities

  • Ductless Heating Or Cooling System
  • Public Hookup Available For Sewer
  • Cable TV Available

Community Details

  • No Home Owners Association
  • Old Town Unrecord Subdivision
  • Rental Restrictions

Listing and Financial Details

  • Homestead Exemption
  • Minimum Rental Period: 28
  • Assessor Parcel Number 00028980-000000

Home Details

Home Type

Single Family

Est. Annual Taxes

$8,560

Year Built

Built in 1928 | Remodeled

Lot Details

2,214 Sq Ft Lot

Listing Details

  • Property Type: Residential
  • Style: Single Family
  • First Right of Refusal: No
  • Mandatory HOA: No
  • Fee Includes: None
  • Key Island: Key West
  • K W Neighborhood: Old Town-S of Truman
  • Limited Representation: No
  • Marathon Neighborhood: N/A
  • Mile Marker: 1.00
  • Min Rental Days: 28.00
  • M L S Identifier: 20060123165453488875000000
  • Pets: Pets Allowed
  • Property Group I D: 19990816212109142258000000
  • Sale Terms: Cash
  • Side: Median
  • State Province: FL
  • Taxes: 8560.03
  • Title: Negotiable
  • Year Built: 1928
  • Alternate Key Number: 1029769
  • Building Style: Conch
  • Cooling Heating: Ceiling Fans(s), Ductless
  • Lot Sq Ft: 2214.00
  • Pool Info: Concrete, In Ground
  • Porch Balcony: Open Porch/Balcony
  • Shutters: Panel
  • Tax Exemptions: Homestead
  • Building Style Above Flood: Unknown
  • Estimated Living Sq Ft: 2205.00
  • Pre Wired: Cable
  • Property Condition: Updated/Remodeled
  • Sewer Hook Up: Yes
  • Statistical Purposes Only: No
  • Special Features: None
  • Property Sub Type: Detached

Interior Features

  • Interior Amenities: Bar, Sky Light(s), Window Treatments, Whirlpool Bath Tub, Wet Bar, Walk-in Closet(s), Smoke Alarms, Granite Counter Top, Dade County Pine, Drapes/Blinds Incl
  • Total Bathrooms: 3.00
  • Full Bathrooms: 2
  • Appliances: Dishwasher, Microwave, Wine Cooler, Washer, Stainless Steel Appliance(s), Refrigerator, Range, Oven, Ice Machine, Dryer
  • Half Bathrooms: 1
  • Total Bedrooms: 3

Exterior Features

  • Dockage: None
  • Waterfront: None
  • Waterfront: No
  • Construction: Frame
  • Exterior Features: Fencing, Lighting
  • Roof: Metal Roof
  • Waterview: No Waterview
  • Pool: Yes

Utilities

  • Utilities: FKAA, Municipal Sewer

Lot Info

  • Deed Restrictions: Unknown
  • Flood Zone: AE
  • Parcel Number: 00028980-000000
  • Land Size: Less Than 1/4 Acre
  • Acres: 0.05

Rental Info

  • Rentals Allowed: With Restrictions
  • Furnished: Negotiable

Tax Info

  • Tax Year: 2019

Ownership History

Date Name Owned For Owner Type

Purchase Details

Closed on
Jan 29, 2026
Sold by
Sheriff Of Monroe County
Bought by
Delgado Carolyn M and Delgado William J
Current Estimated Value
$1,792,739

Purchase Details

Closed on
Oct 8, 2025
Sold by
Sheriff Of Monroe County Florida
Bought by
Delgado Carolyn M and Delgado William J

Purchase Details

Closed on
Jun 9, 2025
Sold by
Sheriff Of Monroe County Florida
Bought by
Delgado Carolyn M and Delgado William J

Purchase Details

Listed on
Apr 1, 2020
Closed on
May 5, 2021
Sold by
Bryant Paul
Bought by
Delgado William J and William J Delgado Revocable Tr
Seller's Agent
Adam Melanson
Sunshine State Realty Services
Buyer's Agent
Adam Melanson
Sunshine State Realty Services
List Price
$1,275,000
Sold Price
$1,225,000
Premium/Discount to List
-$50,000
-3.92%

Home Financials for this Owner

Home Financials are based on the most recent Mortgage that was taken out on this home.
Avg. Annual Appreciation
8.13%

Purchase Details

Listed on
Mar 7, 2013
Closed on
Sep 27, 2013
Sold by
Keenan Terance E and Keenan Gwen L
Bought by
Bryant Paul
Seller's Agent
Ocean Sotheby's International Realty
Buyer's Agent
Stephen Pointer
Century 21 Schwartz Realty (KW)
List Price
$725,000
Sold Price
$625,000
Premium/Discount to List
-$100,000
-13.79%

Home Financials for this Owner

Home Financials are based on the most recent Mortgage that was taken out on this home.
Avg. Annual Appreciation
9.25%

Purchase Details

Closed on
Jun 13, 2003
Sold by
Ulchar John E
Bought by
Keenan Terrance E and Keenan Gwen L

Home Financials for this Owner

Home Financials are based on the most recent Mortgage that was taken out on this home.
Original Mortgage
$322,700
Interest Rate
5.2%
Mortgage Type
Unknown

Purchase Details

Closed on
Aug 27, 2002
Sold by
John M Conrad I
Bought by
Teel David

Purchase Details

Closed on
Jun 24, 1993
Sold by
Dadd Eric T and Dadd Ann M
Bought by
Ulchar John E

Home Financials for this Owner

Home Financials are based on the most recent Mortgage that was taken out on this home.
Original Mortgage
$90,000
Interest Rate
7.52%

Purchase Details

Closed on
Jul 1, 1989
Bought by
Bryant Paul

Purchase Details

Closed on
Jun 1, 1987
Bought by
Bryant Paul

Purchase Details

Closed on
Jun 1, 1984
Bought by
Bryant Paul

Purchase Details

Closed on
Jul 1, 1978
Bought by
Bryant Paul
Source: Public Records

Range of Values:

--
Value Increase
--
Percent Increase
--
Adjusted for Inflation
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Average Value
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List Price
Sold Price
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Home Values in the Area

Source: Public Records

Average Home Value in this Area

Source: Public Records

Purchase History

Date Buyer Sale Price Title Company
Delgado Carolyn M -- --
Delgado Carolyn M -- --
Delgado Carolyn M -- --
Delgado Carolyn M -- --
Delgado William J $1,225,000 Attorney
Bryant Paul $625,000 None Available
Keenan Terrance E $515,000 First American Title Ins Co
Teel David -- --
Ulchar John E $151,500 --
Bryant Paul $170,000 --
Bryant Paul $137,500 --
Bryant Paul $185,000 --
Bryant Paul $70,000 --
Source: Public Records

Mortgage History

Date Status Borrower Loan Amount
Previous Owner Keenan Terrance E $322,700
Previous Owner Teel David $50,000
Previous Owner Ulchar John E $90,000
Source: Public Records

Property History

Date Event Price List to Sale Price per Sq Ft Prior Sale
01/09/2026 01/09/26 Price Changed $1,795,000 -5.3% $814 / Sq Ft
01/02/2026 01/02/26 Price Changed $1,895,000 -2.6% $859 / Sq Ft
12/22/2025 12/22/25 Price Changed $1,945,000 -2.5% $882 / Sq Ft
12/05/2025 12/05/25 Price Changed $1,995,000 -5.0% $905 / Sq Ft
11/15/2025 11/15/25 For Sale $2,100,000 +71.4% $952 / Sq Ft
05/06/2021 05/06/21 Sold $1,225,000 0.0% $556 / Sq Ft
03/30/2021 03/30/21 Pending -- -- --
08/19/2020 08/19/20 Price Changed $1,225,000 -2.0% $556 / Sq Ft
06/26/2020 06/26/20 Price Changed $1,250,000 -2.0% $567 / Sq Ft
04/01/2020 04/01/20 For Sale $1,275,000 +104.0% $578 / Sq Ft
09/27/2013 09/27/13 Sold $625,000 -13.8% $266 / Sq Ft View Prior Sale
07/25/2013 07/25/13 Pending -- -- --
03/07/2013 03/07/13 For Sale $725,000 -- $309 / Sq Ft
Source: Florida Keys Board of REALTORS®

Tax History

Year Tax Paid Tax Assessment Tax Assessment Total Assessment is a certain percentage of the fair market value that is determined by local assessors to be the total taxable value of land and additions on the property. Land Improvement
2025 $12,097 $1,379,927 $777,025 $602,902
2024 $11,140 $1,371,422 $773,235 $598,187
2023 $11,140 $1,220,586 $648,153 $572,433
2022 $9,125 $1,038,440 $502,224 $536,216
2021 $9,845 $1,091,713 $371,456 $720,257
2020 $8,894 $960,195 $368,613 $591,582
2019 $8,560 $974,445 $388,513 $585,932
2018 $8,203 $949,573 $342,081 $607,492
2017 $7,953 $956,209 $0 $0
2016 $7,343 $776,805 $0 $0
2015 $6,400 $557,433 $0 $0
2014 $6,500 $544,920 $0 $0
Source: Public Records

Agents Affiliated with this Home

  • T

    Seller's Agent in 2025

    Timothy Swanson

    The Agency Florida Keys

    (305) 916-1297

    Timothy Swanson
    Section Image

  • A

    Seller's Agent in 2021

    Adam Melanson

    Sunshine State Realty Services

  • S

    Buyer's Agent in 2013

    Stephen Pointer

    Century 21 Schwartz Realty (KW)

See All Agents

Map

Source: Florida Keys Board of REALTORS®

MLS Number: 590445

Florida Keys Board of REALTORS®

APN: 00028980-000000

Florida Monroe County Key West 33040 Old Town

421 United St, Key West, FL

Not Listed for Sale

Detached

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