Build Your Dream Waterfront Home in Duck Key Today! ROGO Exempt with Active Building Permit in PlaceWelcome to 421 Harbour Drive, Duck Key--a rare opportunity to build your own island retreat without the wait! This ROGO-exempt, oversized 11,250 sq. ft. lot comes with an active building permit for a 3,000 sq. ft. waterfront home, allowing you to start construction immediately.Nestled in the heart of Duck Key, this stunning homesite offers breathtaking views of both the Atlantic Ocean and Gulf. Located on Harbour Drive--a street that feels like an island on an island--this property delivers unparalleled serenity while still being close to world-class amenities. Just moments away, you'll find the renowned Hawk's Cay Resort, offering fine dining and luxurious resort experiences, as well as the local HOA clubhouse with a pool, tennis courts, and pickleball.Wake up to crystal-clear waters, enjoy endless days of boating, fishing, and paddleboarding, and relax in the peaceful ambiance of one of the most coveted locations in the Florida Keys. Skip the long permitting process and start building your coastal dream home today!Don't miss this chance to own a slice of paradise--where island living meets effortless luxury.
Lot/land
Price cut: $200K (7/21)
$2,299,000
421 Harbour Dr, Duck Key, FL 33050
--beds
--baths
0.26Acres
Unimproved Land
Built in ----
0.26 Acres Lot
$-- Zestimate®
$--/sqft
$-- HOA
What's special
Waterfront homeBreathtaking viewsCrystal-clear waters
- 161 days
- on Zillow |
- 468 |
- 15 |
Zillow last checked: 7 hours ago
Listing updated: August 15, 2025 at 04:19am
Listed by:
Elizabeth Jolin 305-393-0994,
Coldwell Banker Schmitt Islamorada
Source: FLKMLS,MLS#: 614207
Originating MLS: Florida Keys

Travel times
Facts & features
Interior
Video & virtual tour
Property
Features
- Has view: Yes
- View description: Water, Bay, Ocean
- Water view: Water,Bay,Ocean
- Waterfront features: Oceanfront, Open Water, Gulf Front, Waterfront, Water Frontage, Seawall: Concrete, Dock: Wood, Dockage: Davits, Davit Pads
Lot
- Size: 0.26 Acres
- Dimensions: 75 x 150
- Features: 1/4 - 1/2 Acre, Cleared
Details
- Parcel number: 00376951003000
- Zoning: IS
- Zoning description: Improved Subivision District
Utilities & green energy
- Water: Water Meter
- Utilities for property: Electricity Connected
Community & HOA
Community
- Features: Clubhouse, Pool, Tennis Court(s)
- Subdivision: Harbour Island (61.0)
HOA
- Has HOA: No
Location
- Region: Duck Key
Financial & listing details
- Tax assessed value: $2,031,480
- Annual tax amount: $11,309
- Date on market: 3/17/2025
- Electric utility on property: Yes
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