Costs & contacts

Build costs £64,000

Kitchen £22,000

Bi-fold doors and lantern roof £21,000

Garden landscaping £10,000

Professional fees £3,500

Electronics £3,000

Architectural design Building Tectonics, 01908 366000, building-tectonics.co.uk Bi-fold doors IQ Glass,

0149 472 2880, iqglassuk.com Roof lantern Roof Maker, 0116 497 1254, roof-maker.co.uk Kitchen The Shaker Workshop, 0330 016 3572, theshakerworkshop.com Garden landscaping GC Landscapes, gc-landscapes.co.uk