If you are thinking of building an extension, a new home or even a change of building use then you may need planning consent.
Our Supplementary Planning Document Design of Residential Extensions and New Residential Development (pdf, 1.74 MB) explains the design principles we look at when making decisions on proposed extensions to residential property and new residential development.
The Spelthorne Local Plan 2024-2039-40 (March 2026) sets out the planning policies we consider when making a planning decision.
View, comment or object to planning applications provides information on how you can look up planning applications on our website and send us your comments.
The planning publications list identifies all the planning documents we publish and can be viewed on this website.