Dunsford, Devon

On the eastern edge of Dartmoor national park, and and just inside it, is a self-build home nestled in 2.7 hectares (6.7 acres) of pastures and woodland. It was constructed by the owners, who have lived there for three years. With four bedrooms and two bathrooms, it has impressive eco credentials with triple glazing, a ground source heat pump, solar panels and a heat recovery system – amounting to an energy performance certificate (EPC) rating of B. It is also a smart home with a fingerprint recognition entry system and electric blinds. £1.7m. Jackson-Stops, 01392 214 222

Dartmouth Park, London

The Arches is a red-brick terrace, conspicuous because of its arched windows and decorative masonry. One townhouse for sale has three double bedrooms, a study, a kitchen with a separate utility room, and a large living room with sliding doors on to the back garden. It has underfloor heating topped with oak flooring, and the highest possible EPC rating of A. Hampstead Heath is less than 10 minutes’ walk away, and it is on the doorstep of Swains Lane, at the heart of Dartmouth Park village, with boutiques, restaurants and cafes. £1.55m. Dexters, 020 7590 7299

Netherhampton, Wiltshire

Netherhampton Farm is a collection of 20 homes on the yard area of an old dairy farm. Made from hand-cut limestone blocks, the properties have been designed to fit in with the local agricultural and village landscape. There is a corner property for sale that faces south, with three bedrooms and as many bathrooms. It has an air source heat pump, solar panels, super-fast broadband and a double garage. The kitchen has sliding doors on to the garden and there are views to the east stretching to Salisbury Cathedral. £695,000. Strutt & Parker, 01722 344 018

Clehonger, Herefordshire

On the edge of this ancient village four miles from Hereford is a modern home that gently climbs over different levels. With four bedrooms and three bathrooms, it has a triple-aspect reception room overlooking wildflower meadows below. It has an EPC rating of A, earned by its well-sealed structure, air source heat pump, solar panels and green roof. There is a lift, too, from the integrated double garage into the house. Clehonger has a 12th-century church, a post office, a primary school and a village hall. £800,000. Knight Frank, 01905 746 884

Hastings, East Sussex

With views from the Juliet balcony over the dramatic coastline, is a detached house where efficiency of function meets design. The narrow, three-storey building is made of aluminium and has curved, vaulted ceilings to create extra space, yet the compact footprint is easy to heat. Even when the wind is blowing in off the sea, the temperature inside stays fairly constant because of underfloor heating, an air source heat pump and a mechanical ventilation and recovery system. A thick, minerals-based render on the walls aids insulation. £525,000. The Modern House, 020 3795 5920