As a rule low energy designs that respond sensitively to context are considered a good thing. This house, in a conservation area in London’s leafy Streatham, meets the demanding Passivhaus standard and has been designed to respond and reflect the scale, massing, materials and detailing of the adjacent 19^th century homes.

According to our nominator the architect missed the mark. ‘With its garish colours, unremitting red brickwork, louvered windows and blockish design behind a solid 6 foot wall the house is a clumsy and alien blot on the streetscape. To add to the ugliness solar panels, not normally allowed in the conservation area, have been permitted.’