Welcome to 606 Grinnell Street located in the heart of Old Town Key West, this charming duplex offers the perfect blend of classic Key West character and flexible living opportunities. The first-floor unit features 2 nice sized bedrooms and 1.5 baths, while the spacious second-floor unit offers 3 bedrooms and 1 bath, complete with a private rear balcony overlooking the backyard oasis. Both units feature full sized kitchens with great dining spaces, as well as living rooms too.A welcoming front porch adds to the home's island charm, creating the perfect spot to relax and enjoy the neighborhood atmosphere.Step outside to your private backyard retreat featuring a sparkling pool for your relaxation, ideal for entertaining, time off, or enjoying the Key West lifestyle year-round.Whether you're looking for an investment property, multi-generational living, or the option to live in one unit while renting the other, this versatile Old Town property offers endless potential. There's a convenient side door entrance for the 2nd unit upstairs, while having a lockout door in the first unit if you wanted access to upstairs. Nice thought for Indoor or Outdoor Access to upstairs.Just moments from world-famous Duval Street with lots of dining options, historical seaport, shopping, and nightlife experiences.
For sale
$1,750,000
606 Grinnell St, Key West, FL 33040
5beds
1,870sqft
Duplex, Multi Family
Built in 1901
-- sqft lot
$1,654,100 Zestimate®
$936/sqft
$-- HOA
What's special
Sparkling poolPrivate backyard retreatWelcoming front porchFull sized kitchensGreat dining spacesSpacious second-floor unit
- 52 days |
- 664 |
- 27 |
Zillow last checked:
Listing updated:
Listed by:
Christopher Orth 305-707-4821,
Berkshire Hathaway HomeServices Knight & Gardner Realty
Source: FLKMLS,MLS#: 619947
Originating MLS: Key West Association
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Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 5
- Bathrooms: 3
- Full bathrooms: 2
- 1/2 bathrooms: 1
Cooling
- Central Air, Ceiling Fans(s)
Appliances
- Included: Washer, Disposal, Oven, Range, Refrigerator, Dishwasher, Dryer
Features
- Flooring: Wood
Interior area
- Total interior livable area: 1,870 sqft
Property
Features
- Levels: Two
- Stories: 2
- Patio & porch: Deck, Patio
- Has private pool: Yes
- Pool features: In Ground
- Water view: None
- Waterfront features: None, Dockage: None
Lot
- Size: 2,613 Square Feet
- Dimensions: 33 x 91
- Features: Less Than 1/4 Acre
Details
- Parcel number: 00011190000000
- Zoning: HHDR
- Zoning description: Historic High Density Residential
Construction
Type & style
- Home type: MultiFamily
- Property subtype: Duplex, Multi Family
- Attached to another structure: Yes
Materials
- Frame
- Roof: Metal
Condition
- Updated/Remodeled
- New construction: No
- Year built: 1901
Utilities & green energy
- Sewer: Municipal Sewer, Public Sewer
- Utilities for property: FKAA, Buyer to Verify
Community & HOA
Community
- Subdivision: Old Town - Unlisted (1.0)
HOA
- Has HOA: No
- Services included: None
Location
- Region: Key West
Financial & listing details
- Price per square foot: $936/sqft
- Tax assessed value: $1,553,126
- Annual tax amount: $12,426
- Date on market: 5/18/2026
Estimated market value
$1,654,100
$1.57M - $1.74M
$5,801/mo
Price history
| Date | Event | Price |
|---|---|---|
| 5/18/2026 | Listed for sale | $1,750,000+75%$936/sqft |
Source: | ||
| 11/18/2016 | Sold | $1,000,000+2122.2%$535/sqft |
Source: | ||
| 7/27/1994 | Sold | $45,000$24/sqft |
Source: Public Record Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | $12,427 +4.9% | $1,448,074 +5.9% |
| 2024 | $11,841 +3.9% | $1,367,721 +5.8% |
| 2023 | $11,401 +24.7% | $1,292,478 +28.3% |
| 2022 | $9,142 +8.2% | $1,007,721 +10% |
| 2021 | $8,450 +5.9% | $916,110 +5.9% |
| 2020 | $7,978 | $865,205 +0.1% |
| 2019 | $7,978 -0.7% | $864,396 +2% |
| 2018 | $8,038 -0.1% | $847,154 -0.6% |
| 2017 | $8,043 -2.2% | $852,150 -18.5% |
| 2016 | $8,227 +4.5% | $1,046,033 +74.6% |
| 2015 | $7,872 | $598,984 |
Find assessor info on the county website
Monthly payment
Est. payment$--/mo
Payment breakdown
Explore the cost of this home by adjusting the details. Changes won't be saved.All calculations are estimates and provided by Zillow, Inc. for informational purposes only. Actual amounts may vary.
HOA fees may include property taxes on listings classified as Co-Ops. Contact the listing agent and/or owner for fee details.
Mortgage interest rates are dependent on a number of factors, including credit score, down payment, and repayment length. Interest rate data provided by Zillow Group Marketplace, Inc. as of 1/1/1970 from various mortgage lenders with which we have lead or other similar arrangements; the Estimated Payment is an average of those rates.
See how much you could borrow to make a competitive offer.
Climate risks
Neighborhood: Old Town
Nearby schools
GreatSchools rating
- 3/10Horace O'bryant SchoolGrades: PK-8Distance: 0.6 mi
- 4/10Key West High SchoolGrades: 9-12Distance: 1.3 mi
A local agent can set up tours, give advice and negotiate with sellers.
- Florida
- Monroe County
- Key West
- 33040
- Old Town
- 606 Grinnell St







