GS Renovation designs and builds extensions throughout Merton, working with the bay-fronted Victorian and Edwardian terraces and larger suburban homes near Wimbledon Common and Morden Hall Park. Across SW19, SW20, CR4 and SM4 we have over 30 years of experience turning tight rear yards and unused side returns into bright, well-built living space.
Side-return and rear extensions in Merton
The side return alongside the rear closet wing is the classic opportunity on a Merton terrace. Infilling that narrow strip and pushing the back wall out creates the open-plan kitchen-diner that suits family life near Wimbledon and Mitcham. We handle the groundworks and foundations, the steel beams that carry the original rear wall, the roof with its rooflights, and the full fit-out inside.
Wrap-around extensions combine the side return with a rear addition for a larger footprint, while double-storey options add a bedroom above. On the generous plots found around Morden and the leafier SW20 streets there is often room to extend more ambitiously, always built to sit correctly against the existing solid-wall structure.
Planning and party walls with Merton Council
Whether your extension is permitted development or needs a full planning application depends on the property. Many single-storey rear extensions fall under permitted development, but larger schemes, side extensions, corner plots and anything near a conservation area may require permission from Merton Council. We assess your specific house first and prepare the right application rather than assume.
Every extension also brings building regulations for the foundations, steel and drainage, inspected as the work proceeds. Where your new footings or walls sit against the shared party wall, the Party Wall Act applies too, so we serve the notices your neighbours are entitled to and keep the whole approvals process moving in one coordinated programme.
- Side-return and rear extensions
- Wrap-around extensions and infills
- Loft conversions and roof works
- Planning permission and permitted development
- Foundations, groundworks and steel frames
Trusted House Extensions in Merton
Merton families choose GS Renovation because we manage the extension end to end, from the first structural drawings and the Merton Council application through to the finished kitchen. One accountable team means tidy working in an occupied home, honest pricing and a build that respects the period fabric, backed by 30+ years across the borough.
- Free, no-obligation quotations
- Over 30 years of hands-on experience
- Dedicated project management
- Fully insured and guaranteed work
- Building control and planning support
- Clean, tidy and reliable tradespeople