GS Renovation designs and builds extensions across Holland Park, from rear and side-return additions to full wrap-arounds on the area's bay-fronted Victorian and Edwardian terraces. Drawing on 30+ years in W11 and the wider Royal Borough of Kensington and Chelsea, we handle the groundworks, the steelwork, the roof and the full fit-out as one accountable project.
Side-return extensions in Holland Park
The classic Holland Park extension fills the side return, that narrow strip of outside space running alongside the rear closet wing on a Victorian or Edwardian terrace. Infilling it widens a cramped galley kitchen into a bright, open-plan room, often with rooflights and bifold or crittall-style doors onto the garden. We dig and pour new foundations, build up the walls and tie the new roof neatly into the existing back addition.
Because these plots sit within the dense W11 streetscape, we plan access, scaffolding and material deliveries carefully and keep the party wall with each neighbour protected throughout. A steel beam almost always forms the new opening between the old and new space, sized by an engineer and signed off by building control alongside the rest of the works.
Planning and permitted development in W11
Whether your Holland Park extension is permitted development or needs a full planning application depends entirely on the property. Many single storey rear extensions fall under permitted development rights, but Holland Park sits within the Royal Borough of Kensington and Chelsea, an area with conservation designations and many protected buildings, so those rights are often removed or restricted and a planning submission to the council may be required.
We assess your specific house early, tell you honestly which route applies and prepare the application where one is needed. Structural elements such as foundations and beams always need building regulations approval regardless of the planning position. Keeping these two approvals clearly separate, and starting both at the right time, is what keeps a Holland Park extension moving without costly surprises.
- Wrap-around extensions and infills
- Loft conversions and roof works
- Planning permission and permitted development
- Foundations, groundworks and steel frames
- Full fit-out, finishing and making good
Why Choose GS Renovation in Holland Park
Holland Park homeowners choose GS Renovation because we manage the whole extension under one roof, the design, the council planning where it applies, the party wall notices, the structure and the finish. You deal with one experienced team who understand W11's period stock and the Royal Borough's rules, backed by 30+ years of building in and around the area.
- 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