For sale

$1,100,000

Est. $7,641/mo

Land

•

6,000

sq ft (lot)

21 Harbor Dr, Key Largo, FL 33037

About this home

ROGO ALLOCATION AWARDED • APPROVED BUILDING PLANS • DIRECT BAY ACCESS! Exceptional opportunity to build your dream waterfront home in the desirable Sunset Waterways subdivision of Key Largo! This 6,000 sq. ft. waterfront lot offers 60 feet of waterfrontage with direct Bay access and the significant advantage of an awarded Monroe County ROGO allocation. Approved building plans are included, with U. S. Army Corps of Engineers and Florida DEP approvals pending payment of required mitigation fees which seller will satisfy, offering buyers a tremendous head start toward building their Florida Keys retreat. The current owner is a licensed architect and can modify the existing plans to accommodate a buyer's preferences for a reasonable fee, subject to applicable approvals and ROGO requirements. Located in an established waterfront community with excellent boating access, this property presents a rare opportunity to acquire a waterfront homesite with substantial planning and permitting already completed. Bring your vision to life and enjoy the ultimate Florida Keys waterfront lifestyle!

Vacant landProperty Type

6,000 sq ftLot Size

$183Price/Sq.Ft.

Listed by Mirtha Perez • The Listing Office, LLC.

•786-246-0192 (agent)

•Mirtha@TheListingOffice.com (agent)

•786-999-9837 (broker)

•amanda@thelistingoffice.com (broker)

Listing updated: Oct 16, 2026 at 07:18pm

Redfin checked: 2 minutes ago

•Source:MARMLS #A12104841

Payment calculator

$7,641 per month

Principal and interest$6,078

Property taxes

$234

HOA dues

Home insurance

$1,329

Utilities

Add

Affordability tools

Open houses

No upcoming open houses.

Nearby open houses (4)

Around this home

Schools

K - 12
Preschool & daycare

Key Largo School

Public PreK-8 • Assigned • 4.1mi

8/10

Coral Shores High School

Public 9-12 • Assigned • 10.5mi

5/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Property details

Exterior

Exterior features
Canal frontage
East-facing

Utilities
Electricity available

Sale and tax history for 21 Harbor Dr

Sale History
Tax History

Public record

Public record
Zoning

Beds

—

Baths

—

Stories

—

Lot width

—

Lot depth

—

Lot size

6,000 Sq. Ft.

Year renovated

—

Finished Sq. Ft.

—

Unfinished Sq. Ft.

—

Total Sq. Ft.

—

Year built

—

Style

Vacant Land

County

Monroe County

APN

2861 39 00530060000000

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Jul 10, 2026.

III

Improved Subdivision District

The purpose of the IS district is to accommodate the legally vested residential development rights of the owners of lots in subdivisions that were lawfully established and improved prior to the adoption of this LDC. For the purpose of this section, improved lots are those that are served by a dedicated and accepted existing road of porous or nonporous material, that have an approved potable water supply, and that have sufficient uplands to accommodate the proposed use in accordance with the required setbacks. This district is not intended to be used for new land use districts of this classification within the county.

Zone overlays

Tier III Overlay District

Permitted uses

Include but are not limited to:

Housing-Multiple units
Infrastructure

Climate risks

10/10 Flood Factor

Estimated 80%+ chance of a flood reaching the building in the next 30 years

1/10 Fire Factor

Unlikely to be in a wildfire in next 30 years

10/10 Heat Factor

7 days above 107° expected this year, 31 days in 30 years

10/10 Wind Factor

99% chance of strong winds in next 30 years

2/10 Air Factor

1 unhealthy days expected this year, 1 days in 30 years

Provided by First Street

Historical weather

Key Largo, FL • 33037

Average low and high temperatures (°F)

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Sun exposure

98/ 100

Exceptional sunlight

Sunscore

This home ranks in the top 13% for direct sun exposure in Key Largo. There appears to be minimal shading by surrounding buildings, terrain, and vegetation.

9.7 hrs

7.4 hrs

JuneDecember

Provided by Shadowmap

Redfin Estimate for 21 Harbor Dr

$1,070,157

$30K under list price of $1.10M

Nearby comparable homes

The Redfin Estimate uses 6 recent nearby sales, priced between $295K to $1.3M.

SOLD AUG 26, 2026
$1,125,000 Last sold price
3 beds2 baths2,052 sq ft
227 Atlantic Blvd, Key Largo, FL 33037
larger lot
SOLD JUL 21, 2026
$695,000 Last sold price
4 beds3 baths2,109 sq ft
21 Tina Pl, Key Largo, FL 33037
SOLD JUN 16, 2026
$1,300,000 Last sold price
4 beds2 baths2,196 sq ft
174 Corrine Pl, Key Largo, FL 33037
larger lot
SOLD JAN 5, 2026
$735,000 Last sold price
4 beds3 baths1,652 sq ft
1 Orange Dr, Key Largo, FL 33037
smaller lot
SOLD JUL 17, 2026
$620,000 Last sold price
3 beds2 baths1,568 sq ft
56 Tina Pl, Key Largo, FL 33037
smaller lot
SOLD MAY 8, 2026
$295,000 Last sold price
1 bed1 bath400 sq ft
19 Judy Pl, Key Largo, FL 33037

Contact listing agent

Mirtha Perez

The Listing Office, LLC.

786-246-0192

Mirtha@TheListingOffice.com

At this time, Redfin doesn't have an agent available to help you with this home.