GS Renovation designs and builds extensions across New Malden, where interwar semis in KT3 sit on the generous plots that make rear and side-return additions so worthwhile. Drawing on 30+ years in Kingston upon Thames, we handle the groundworks, steelwork, roof and full fit-out, turning tired 1930s layouts into bright, open family space.
Rear and side-return extensions in New Malden
The classic New Malden extension pushes into the back garden or fills the narrow side passage of a 1930s semi to create a large kitchen-diner across the rear. Because the original back wall is load-bearing, we install steel beams sized by a structural engineer, then pour proper foundations and manage the groundworks first, checking for the mature garden trees common on these generous interwar plots before we dig.
Some New Malden extensions fall under permitted development, while others need a full planning application to Kingston Council, and it depends on the size, height and position of your property, whether it has been extended before, and any local restrictions. We assess your specific KT3 home, advise honestly which route applies, and prepare the drawings and paperwork accordingly.
Double storey and wrap-around builds in KT3
The wide plots typical of New Malden's interwar streets often suit a wrap-around that combines a rear and side extension, or a double storey addition that adds a bedroom and en-suite over a bigger ground floor. These larger projects almost always need planning permission from Kingston Council rather than relying on permitted development, and we manage that application alongside the structural design.
Where the new build sits against the shared boundary of a semi, the Party Wall Act comes into play, so we serve notices on the adjoining owner before excavation begins. From foundations and steel frame through roofing, glazing and the full internal fit-out of plastering, wiring, plumbing and decoration, one GS Renovation team sees the whole KT3 extension through to completion.
- 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
The GS Renovation Difference in New Malden
Homeowners in New Malden choose GS Renovation because we manage the extension from first drawing to final coat. We tell you plainly whether your KT3 project is permitted development or needs a planning application, handle the party wall notices your semi requires, and build the structure and fit-out with one accountable team. Over 30 years in Kingston upon Thames stands behind the work.
- 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