Green Homes for Sale - Key Largo, Florida Green Home

Key Largo, Florida — Green Home For Sale

The owners of this Florida Keys Green home won the 2005 Sustainable Florida WCI Green Building Award for their efforts to build a home with limited impact in one of the world’s most environmentally sensitive areas.

Listing ID: 17991

  • Green Home
  • Healthy Home
  • Solar - Photovoltaic
Annual Property Tax $6,118
Annual Utility Cost $900
Home Area 2,450 sq ft
Bedrooms 3
Bathrooms 3
Total Property Area 43560 sq ft
Year Built 2002

Property Description

This bayfront "green" home is similar in concept to a hybrid automobile. It can run on public utilities or function equally as well on its own solar-powered electrical system and 7,500 gallon rainwater cistern. The entire home was built with the environment in mind while still offering all of the amenities of a luxury waterfront residence. It has been featured in numerous publications highlighting its energy-saving design. One of the home\'s best features is its location in a gated community, on one acre, with native hardwood forest and a natural white sand beach overlooking the watercolor views of the Gulf. There is a deep-water dock for your boats and a huge deck for enjoying the Florida Keys sunsets. Experience nature at its best.

What makes your home a Green or Healthy Home?

The home is solar-powered and grid-connected and features solar hot water and a 7,500-gallon rainwater cistern with a water purification system. It was built with “green” products. It is 2,583-square-feet under air with 1,488 square feet of porches. There’s a 360-square-foot shaded deck off the kitchen. A Cupola with operable windows works like a chimney to draw warm air up and out of the house. Operable windows on interior walls promote cross ventilation. Long overhangs of 3–5 feet shade walls, keep out the heat. High ceilings (10-foot) with window vents keep occupants cool. Light-colored exterior surfaces reflect the sun. White metal roof reflects heat. White metal storm shutters also are used to shade windows from afternoon summer sun.

Other features include granite kitchen countertops; bamboo, marble, and tile flooring; energy-efficient windows and French doors, energy-efficient appliances; non-formaldehyde insulation; and no- and low-VOC paints and stains; a kitchen recycling bin; xeriscape landscaping. Construction was completed in 2002.

Green Details:

Photovoltaic System (installed in 2002 & 2005)
2,800 watt, utility grid-tied system with battery back-up. Solar array consists of 24 Kyocera solar panels (each produces 120 watts at 48 volts), mounted on a UniRac mounting system and pitched at an angle of approximately 15 degrees facing southeast. Mounting hardware and installation specific to resist max uplift/wind-load rating, exceeding hurricane wind-load requirements.

—Trace SW5548 inverter enclosed in weatherproof metal box

—Eight 6-volt golf cart batteries 240 Ahr enclosed in weatherproof metal box

Air Conditioning, Heating and Fans
—Two Lennox Elite Series 14, 2.5-ton variable-speed, Seer 14.5 air conditioners (HS27 compressor) with Lennox Innovator Series Powermate Blower Coil Units (CB31MV).
—Most duct work in air-conditioned space
—Sealed, insulated duct work
—Honeywell CT 3600 Programmable Energy Star thermostats
—Honeywell F35F Media Air cleaner with Expandapac media filter
—Hampton Bay Windward II 54-inch ceiling fans, dimmable compact fluorescent light and remote control
—Fantech LS80 exhaust fans in bathrooms

—DCS 30-inch gas range and gas cooktop (propane) RG-304-L
—Miele low-energy, low-water dishwasher, quiet G 879-SC
—Miele Slide-Out Vent Hood DA329
—Kenmore front-loading (horizontal axis) washer, which uses less water and energy than top loading; earth-friendly laundry soaps and fabric softener and non-chlorine bleach
—Kenmore 27-in gas dryer, moisture-sensor minimizes energy use
—GE Profile Performance refrigerator
—Vacuflo built-in central vacuum system model 460

—7,500-gallon concrete incorporated within house walls
—Pura Big Boy 20-inch whole-house 3-filter system, a 1-micron sediment filter, carbon-block filter, and an ultra violet filter.
—Saferain First-Flush Diversion Valve to clean roof before water enters cistern (Australian)
—Myers pressure tank with Goulds 1/2-hp jet pump
—Copper gutters

—Low-flow faucet and showerheads

—Bamboo floors and interior stairs. Selected because bamboo is a sustainable, fast-growing product, that can be reharvested in 5 years vs. 20-40 for hardwoods. It’s as strong as maple, is dent and moisture resistant (important in the sub-tropics).
—Porcelain tile with marble trim on bathroom walls
—Tumbled marble on bathroom floors
—Marble accents on floors throughout

Home Automation
—Home is wired for sound with surround-sound speakers in living room and twin speakers in bedrooms
—Home is wired for automation throughout
—Honeywell programmable thermostats on air-conditioning systems
—Alarm system

Hurricane Shutters
—EZ Lock Shutters white colonial shutters
—Choice vented impact Bahama shutters on south windows
—Impact windows on less accessible windows

—Formaldehyde-free insulation in ceiling crawl space (R-19), exterior walls (R-35) and interior walls

—House qualifies for windstorm reduction allowance

—Landscaped with rock walls, native plants, drought-resistant plants and edible trees and herbs
—Drip-irrigation system, includes mist system for tree-hung orchids

—Compact fluorescent (interior and exterior), fluorescent and recessed low-voltage halogen (Halo) lights with dimmers and timers
—Natural daylighting from windows and French doors in every room

Paints and Stains
—Non-toxic and no- and low-VOC paints and stains: AFM Safecoat paint; OS One Coat Stain; OS Hardwax Oil; Benjamin Moore Eco-Spec paint

Photovoltaics System (Solar Electric)
—2.8 kW, 48-volt Florida Keys Electric Cooperative-interconnected photovoltaics system that uses 24 Kyocera 120-watt solar panels
—Trace SW5548 inverter
—Eight 6-volt golf cart batteries

—Galvalume 5V-crimp 26 g white metal roof stays cool (19%–70% percent cooler than dark surfaces),

Salvaged Material
—Architectural salvage materials used indoors (columns) and outdoors (corbels, railings, gates)

Solar Hot Water Heater
—Progressive Tube PT40 passive solar hot water heater (40 gallon)
—Aquastar propane-powered supplemental hot-water heater

—Metlund on-demand water recirculation system - circulates cool water sitting in hot-water line back to the water heater with the push of a button. Automatically cuts off when hot water is available at the bathroom fixtures throughout house.

Windows & Doors
—Kolbe & Kolbe Ultra Manor Outswing Doors: Energy-efficient French doors (wood interior, vinyl-clad exterior) with high-performance, low-E tinted, insulated glass, wood frames on the interior and vinyl-clad on the exterior. (Selected for its wood doors clad in vinyl with operable transom windows attached.) The transom windows above exterior doors promote cross ventilation for passive cooling.
—Andersen Narroline Double-Hung Windows, high-performance, low-E, tinted double-paned glass
—CGI impact glass kitchen clerestory windows
—Clerestory windows on interior walls promote cross ventilation

Neighborhood Description

Coral Coast is a small gated community on the Gulf side of the island of Key Largo near Mile Marker 97. It consists of 15 residential properties of one acre each. The entire area is considered a high quality hardwood hammock with many tropical hardwood trees such as lignum vitae, ironwood, soldierwood, buttonwood and mahogany as well as gumbo limbo, mangrove and many other protected species. Coral Coast and the surrounding areas are also part of a migrating bird flyway. All of the properties are required to keep 80% of the area as a natural preserve. It is not unusual to see hawks, osprey, herons and other wading birds including roseate spoonbills. Manatee and Atlantic bottlenose dolphin are regular visitors. The clear bay waters are home to soft corals, seagrasses and a huge assortment of tropical fish. An ideal way to observe them is by kayak.

Market Area

Like a string of pearls tossed casually into the sea, the Florida Keys are a series of islands linked together by 42 bridges with the Atlantic Ocean on one side, and Florida Bay and the Gulf of Mexico on the other.

Just one hour south of Miami sits Key Largo, home to North America\'s only living coral reef and John Pennekamp Coral Reef State Park. Snorkeling and diving the reef off the Keys is an unforgettable experience

School District

Key Largo


Coral Coast

Home Type or Land

Single Family - Two Story

Location of Home or Land


Elevation of Home

Sea Level

Building Details

Air Quality

Agriculture in Area No
Industry in Area No
Air Pollution in Area No
Pesticide Free Yes
Fragrance Free Yes
Cleaned with Green Products Yes

Interior Environment

Heating System Forced Air - Electric
Solar - Passive
Cooling System Conventional Forced Air - A/C
Ventilation System Other
Whole House Filtration HEPA filtration
Whole House Vacuum Yes

Energy & Water

Energy System Hybrid
Solar - Photovoltaic
Water System Municipal
Rain Water Collection
Wastewater System Septic System

Construction Information

Construction Type Masonry/Concrete
Exterior Finish Stucco
Interior Finish Cement Plaster
Interior Paint AFM
Floor Material Other
Roof Material Metal
Window Material Vinyl or Vinyl Clad
Wood Dual Glazed
Insulation Material Fiberglass

Garage / Car Port

Garage / Carport Yes
Garage Type Carport Attached
Number of Cars 2
Garage Area 2211 sqft