Can you imagine your house contributing $3,000 per month? It's not that far away. Innovative sustainable design has been able to provide that type of pay back from a very attractive floorplan.

The home of the future could slash your utility bills and generate enough money to help pay the mortgage. UK firm Koru Architects designed and built one such house, named the Lloyd House, that’s effectively zero-carbon and runs entirely on renewable energy. Tucked away on a quiet street in England’s East Sussex, this contemporary home generates more energy than it consumes and even brings in a net income of £2650 per year from solar photovoltaics, solar thermal, and a wood-chip biomass boiler.

Completed in 2011 as a case study, the Lloyd House is a large and contemporary three-bedroom home that only consumes around half the energy of a typical UK household thanks to its use of passive solar design, energy efficient appliances, effective insulation, and high airtightness. The home was built with mostly natural materials including sustainably sourced timber for the cladding and flooring, zinc roofing, hemp and wood-fiber insulation, recycled glass in the kitchen countertops, and lime-based natural plants. Sedum plants carpet the roof to add an additional layer of insulation and provide habitat to local insects and birds. A 4,700-liter Freewater UK Elite rainwater harvesting system collects rainwater for reuse in irrigation, the washing machine, and the dual-flush toilets.

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