Rear, side-return and wrap-around extensions on Balham’s period homes, from first drawings to a finished room.
We build extensions for homeowners across Balham and SW12. Most are side-return and rear extensions on Victorian and Edwardian terraces, opening up the back of the house into a kitchen-diner or family room. We handle the drawings, planning, building control and the build itself, so you deal with one team from the first site visit to the final sign-off.
A rear or side-return extension is the most common way to add space to a Balham terrace without moving. Filling in the side return down the length of the kitchen, and pushing out at the back, usually turns a narrow galley kitchen and separate dining room into one open space with better light.
We take the job from design through to completion: measured survey, drawings, structural calculations, the planning or permitted development route, building control, and then the build with our own trades. You get one point of contact and a written quote and schedule before anything starts.
Typical build: 10 to 16 weeks on site
Planning: Permitted development or full application
Structural: Steels and calculations included
Covered: Balham and SW12, plus SW4 and SW17 edges
The right option depends on your house and how you use the space. We will talk it through on the first visit.
Balham is mostly Victorian and Edwardian terraces and semis, which suit side-return and rear extensions well. On the conversion flats and mansion blocks, ground-floor and garden flats can sometimes extend too, subject to the freeholder and lease. Parts of Balham sit in conservation areas, so we check your address and the planning position before any design work.
We visit, measure up and talk through what you want, then send a written quote.
We prepare drawings and structural calculations and handle the planning or permitted development route.
Our trades build the extension, with one point of contact and regular updates.
Building control signs the work off and we hand over the finished space.
Many single-storey rear extensions fall under permitted development, but Balham has conservation areas and a lot of flats where the rules are tighter. We check your address first and handle a full planning application if one is needed.
Most single-storey extensions in Balham take around 10 to 16 weeks on site, depending on size, groundworks and finish. You get a schedule with your quote.
Yes. Side-return extensions are one of the most common jobs we do on Balham terraces, usually combined with a rear extension to open up the kitchen.
Usually, yes, if you are building near or on a shared wall. We prepare the party wall notices for your neighbours as part of the job.
It depends on the size, the groundworks and the specification, so we give you a written quote after a site visit rather than a guess up front.
Rear Extensions is one of ten building services we offer across Balham and SW12. If your project needs more than one, we handle them as a single job.
Tell us about your property and preferred timeline and we will get you a quote.
