Five UK house renovations designed to improve energy efficiency

Architects Sarah Wigglesworth's and Piers Taylor's self-designed renovations feature in this roundup of British houses that have recently been retrofitted and insulated to improve their energy efficiency.
The UK's housing is among the oldest and most poorly insulated in Europe, with the majority also depending on gas for heating.
With spiralling energy costs and increased awareness about the industry's environmental impact, this poor energy performance has come under scrutiny in recent months.Re