RARE Solar-Powered Waterfront Tropical Gem with TESLA Solar Storage Banks on Prestigious Sugarloaf Key! A rare opportunity to own a fully solar-powered waterfront residence featuring 26 solar panels and two Tesla Solar Powerwall storage banks, offering exceptionally low energy costs, backup power, and the potential to earn credits by supplying excess energy back to the grid. This elevated 3 BD, 2 BA, 1,764 SF home sits on exclusive Southpoint—only three homes from open water and just 20 minutes to Key West. Step inside to a breathtaking cathedral Cupola, soaring above the open living, dining, and great room. Impact-glass windows fill the space with natural light, highlighting the home's tropical architecture and warm coastal finishes. The kitchen is designed for effortless entertaining with a double island, stainless steel appliances, and new quartz countertops. The split floor plan creates exceptional privacy. The primary suite features a large walk-in shower, jacuzzi tub, double vanity, and a spacious walk-in closet that connects to a versatile laundry/fitness/office room—also home to the Tesla storage banks. The opposite wing offers two guest bedrooms and a dual-access bathroom with two private vanities. Enhance your waterfront lifestyle with an impressive concrete boat ramp for jet skis, boats, kayaks, and paddleboards, plus a newly installed 10,000 lb boat lift on a deep, wide, crystal-clear canal providing fast access to both the Gullf and Atlantic. The oversized 15,000 SF lot bursts with vibrant tropical landscaping and includes a newly completed tropical pool with natural rock feature. Enjoy sunset views and star-filled nights from the rooftop observation deck. Additional features include Andersen impact windows and sliding glass doors, low insurance costs, covered parking, and excellent storage below the home. A rare Keys offering combining sustainable energy, modern resilience, and luxurious waterfront living—an exceptional opportunity in today's market
Single-familyProperty Type
1991Year Built
0.34 acresLot Size
$904Price/Sq.Ft.
Listed by Lisa Swanson• The Agency Florida Keys
Bought with Cheryl Billings• Berkshire Hathaway HomeServices Keys Real Estate - Lower Keys
Est. $4,768 per month, based on comparable rentals
Sale and tax history for 16640 Cypress Rd
Sale History
Tax History
Date
Event
Price
FLKMLS #617675
Jul 24, 2026
Sold
$1,595,000
$904/sq ft
Jul 3, 2026
Contingent
—
Jun 26, 2026
Relisted
—
Jun 16, 2026
Contingent
—
May 4, 2026
Price Changed
$1,595,000
$904/sq ft
Apr 3, 2026
Price Changed
$1,695,000
$961/sq ft
Mar 27, 2026
Price Changed
$1,745,000
$989/sq ft
Mar 2, 2026
Price Changed
$1,795,000
$1,018/sq ft
Feb 22, 2026
Price Changed
$1,839,000
$1,043/sq ft
Feb 5, 2026
Price Changed
$1,875,000
$1,063/sq ft
Dec 11, 2025
Listed
$1,939,000
$1,099/sq ft
FLKMLS #602749
Mar 27, 2023
Sold
$1,610,000
$913/sq ft
Feb 11, 2023
Contingent
—
Feb 3, 2023
Price Changed
$1,745,000
$989/sq ft
Dec 29, 2022
Price Changed
$1,795,000
$1,018/sq ft
Oct 14, 2022
Listed
$1,895,000
$1,074/sq ft
+99
RARE SOLAR POWERED waterfront Tropical Gem with TESLA storage banks! This ''Off The Grid'' gorgeous 3 bed 2 bath 1,764 SF stilted home has minimal energy bills & potential to earn energy credits by supplying excess energy back to the ''grid''. 26 solar panels with 2 Tesla power storage banks make this home highly energy efficient giving you peace of mind during a storm & no worries during power outages. Located on prestigious Southpoint, Sugarloaf Key only 3 homes from open water & only 20 minutes from Key West, this gorgeous home greets you with a breathtaking Cupola as you step inside. The soaring cathedral Cupola with impact side windows takes the center stage above the open plan living, dining and great room. The kitchen features a double island, stainless steel appliances & granite countertops. Split bedroom floorplan with the primary suite on the west side with a large walk-in shower, jacuzzi tub & double vanity. The spacious closet leads from the primary bed into the laundry/fitness/office where the Tesla storage banks are housed. On the opposite side of the home you will find 2 guest beds with a large dual access bathroom complete with 2 separate private vanities. There is an impressive extra large concrete ramp for you to launch your boat, jetskis, paddleboards, kayaks & water toys. Dock your boat alongside the long composite dock or on the floating dock in this deep crystal clear wide canal. Quick access to the Gulf & Atlantic Ocean. The oversized 15,000 SF lot is beautifully landscaped with lush foliage bursting with vibrant colors & there is plenty of room for a pool. Enjoy spectacular views, sunsets & star gaze at night from the rooftop open deck. Low insurances. Equipped with expensive Andersen impact windows & glass sliding doors. Storage & covered parking under the home. Check out the awesome live video to satisfy your virtual showing requests. A true rare find in the Keys home market!
FLKMLS #91756
Aug 9, 2002
Sold
$395,000
$224/sq ft
May 31, 2002
Listed
$399,900
$227/sq ft
FLKMLS #511882
Aug 9, 2002
Sold
$395,000
$224/sq ft
May 31, 2002
Listed
$399,900
$227/sq ft
Wonderful & open canal front home! 3BD/2BA, cath. celings, tile, glass doors, concrete boat ramp & seawall & views of the water from your deck. Located in Southpoint Sugarloaf Shores, close to the ocean & well laid out.
Year
Property tax
Land + Additions
Assessment*
2025
$8,681 (−22.3%)
$614,100 + $365,608
$979,708
2024
$11,169 (+108.3%)
$941,175 + $360,562
$1,301,737
2023
$5,362 (+2.9%)
2022
$5,213 (−3.1%)
2021
$5,379 (+0.5%)
2020
$5,352 (−4.6%)
$293,700 + $283,682
$577,382
2019
$5,611 (−3.5%)
$293,700 + $283,682
$577,382
2018
$5,814 (+8.4%)
$361,125 + $248,240
$609,365
2017
$5,363 (+1.0%)
$273,375 + $252,565
$525,940
2015
$5,310 (+7.9%)
$424,003 + $227,634
$651,637
2014
$4,921
Public record
Public record
Zoning
Beds
3
Baths
2
Stories
2
Lot width
—
Lot depth
—
Lot size
0.34 Acres
Year renovated
2010
Sq. Ft.
1,764
Year built
1991
Style
Single Family Residential
County
Monroe County
APN
0367 27 00166976011000
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Oct 9, 2026.
IS
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
Property details
Parking
Parking / Garage Information
Vehicle Storage: Carport, Trailer Storage, RV Parking Open, Open Parking
Pool Information: In Ground, Concrete, Tidal/Salt Water
Pool Info: Other: Chiller and Heater,
Pool Info: Other Material: Waterfall feature
Porch/Balcony: Open Porch/Balcony, Deck, Widow's Walk
Shutters: Bahama, Panel
Security
Electric Gate
Property Features
On Waterfront
Waterfront Type: Canal Front
Waterview: Bay/Gulf View, Open Water View, Canal View
Property Information
Deed Restrictions: Unknown
Pets: Pets Allowed
Rentals Allowed: With Restrictions
Min Rental Days: 28
Lot Information
Acres: 0.34
Zoning: IS - Improved Subivision District
Land Size: 1/4 - 1/2 Acre
Control Depth: 3
Flood Zone: AE
Building Information
Year Built: 1,991
Sq. Ft. Source: Property Data Card
Building Style: Above Flood: Yes
Construction: Frame, Hardi Board Siding
Roof: Metal Roof
Subdivision/Neighborhood
Subdivision: Sugarloaf Shores (17.0)
Marathon Neighborhood: N/A
Financial
Tax Information
Taxes: $11,168.93
Tax Year: 2,024
Tax Exemptions: Homestead
Utilities
Utility Information
Utilities: FKAA, Solar Power, Municipal Sewer
Solar Panels
Has Public Sewer Hook-up
Location
Homeowners Association Information
Association Info: 1st Right of Refusal: No
Association Info: Association Fee $: 0.00
Fee Includes: None
Location Information
Side: Ocean
Mile Marker: 17.00
Public facts
Beds: 3
Baths: 2.0
Sq. Ft.: 1,764
Stories: 2.0
Lot Size: 0.34 acres
Style: Single Family Residential
Year Built: 1991
Year Renovated: 2010
County: Monroe County
APN: 0367 27 00166976011000
Home facts updated by county records on Oct 9, 2026
Around this home
Schools
Sugarloaf School
Public PreK-8 • Assigned • 2.8mi
6/10
Key West High School
Public 9-12 • Assigned • 14.3mi
4/10
Provided by GreatSchools
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
Heat Factor
We're working on getting current and accurate heat risk information for this home.
10/10 Wind Factor
99% chance of strong winds in next 30 years
1/10 Air Factor
0 unhealthy days expected this year, 0 days in 30 years
Provided by First Street
Historical weather
Sugarloaf Key, FL • 33042
Average low and high temperatures (°F)
74
64
77
67
81
70
83
74
89
80
91
81
92
83
91
81
88
80
85
77
81
72
78
69
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
99/ 100
Exceptional sunlight
Sunscore
This home ranks in the top 11% for direct sun exposure in Sugarloaf Key. There appears to be minimal shading by surrounding buildings, terrain, and vegetation.
9.4 hrs
7.2 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$1.47M – $1.78M
Sell confidently with a local market expert in Sugarloaf Key.