House Extensions
in Kingston

Canbury's late Victorian houses are mostly two storeys, on grid streets that mix terraces, semis and detached houses, and some were extended as early as the Edwardian period. A new rear extension there may need to work around, or replace, an older addition. Around Knights Park and Fairfield West, the three-storey Victorian villas are semi-detached, which can leave space at the side as well as the rear. In Coombe, the post-war cul-de-sac houses sit on smaller plots than the large houses before them, so the garden can set the size of the extension.

Where an application is needed, the Royal Borough of Kingston upon Thames looks to its Residential Design SPD, which suggests a single-storey rear extension should generally be no deeper than 3 to 3.5 metres and should leave at least half of the rear garden. Flood zones matter too, particularly in the town centre: basement bedrooms and self-contained basement dwellings are not allowed in Flood Zones 2 and 3a, even when created by an extension. On a terrace or semi, party wall notice is likely for work on or near the boundary. Your house's planning route is checked before any drawings are made, and every project starts with a free, itemised Cost Proposal.