August 26, 2026

At a glance A loft conversion adding a genuine double bedroom and bathroom lifts a typical Beckenham three-bed home’s value by up to 24%, worth somewhere between £90,000 and £155,000 at today’s Beckenham property prices. For planning purposes, 15% to 20% as a more cautious Beckenham range, or roughly £90,000 to £120,000 on a £600,000