Planning and design for home extensions, conversions and change of use

Plandome is a planning and design consultancy, part of WBM Property Investments Ltd. These pages explain the local rules, how the council decides applications and what the work costs, using published sources that are linked on every page.

Services

• Double-storey extension: fixed fee £3,000 (VAT_WORDING_TBC)
• Single-storey rear extension: fixed fee £1,500 (VAT_WORDING_TBC)
• Loft conversion: fixed fee £1,500 (VAT_WORDING_TBC)
• HMO conversion: fixed fee £3,000 (VAT_WORDING_TBC)
• Commercial-to-residential change of use: fixed fee £3,000 (VAT_WORDING_TBC)

Councils covered so far

• Leeds
• Birmingham
• Richmond upon Thames

Each page is general information, last checked 14 November 2026. Read how we make these pages.