Building in Balham.
Balham is known for its tree-lined streets full of family-sized Victorian terraces. Most families solve space constraints by extending to the rear or converting the loft.
- Postcode SW12
- Borough Wandsworth
- Projects —
- Travel Under 45 min
What we deliver in Balham.
Each Balham street has its own typical layout — Victorian terrace, Edwardian semi, 1930s detached. We adapt the recommendation to the house, the planning context and how you actually want to live.
Rear extensions with French doors and rooflights create open kitchen-diner spaces; two-storey extensions add bedrooms.
Mansard and dormer conversions respect the proportions of Victorian terraces and deliver generous new rooms.
Occasionally we develop modern homes on side plots; design always reflects the local streetscape.
SERVICE 01 House extensions in Balham
A house extension is the biggest investment you can make in your home — it should transform how your family lives, not just add square metres. We design every extension around how you actually use your space, with a fixed, itemised price and stage-based payments so you stay in control from first sketch to handover.
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SERVICE 02 Loft conversions in Balham
A loft conversion adds an entire floor without losing any garden. We design lofts as proper rooms — full-height ceilings, generous windows, en-suite bathrooms — not afterthoughts squeezed into the rafters.
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SERVICE 03 New builds in Balham
New build is the most ambitious thing you can do — a chance to design exactly the home you want from the ground up. We have delivered single houses on infill plots, full plot developments, and demolition + rebuild projects. We work with leading architects or your own.
View serviceRecent work in Balham.
Balham projects include a two-bedroom loft conversion and a two-storey rear extension with a first-floor terrace.
Common Balham questions.
Things you might need to know about building in Balham.
Do I need planning permission for an extension in Balham?
Many extensions in Balham fall under permitted development. We assess your property type, council restrictions and any conservation status on the first visit.
How long does a project in Balham typically take?
From first consultation to handover: 6–9 months for a single-storey extension or loft, 9–14 months for double-storey or wrap-around. We give you a tighter estimate after the survey.
Are there conservation areas in Balham?
Possibly — many Wandsworth streets are within conservation areas which restrict materials and detailing. We have approved schemes in conservation areas across the borough.
What is a typical extension cost in Balham?
Build cost in this part of London runs £2,500–£4,000 per square metre for a finished extension including kitchen and finishes. Our calculator gives a personalised estimate.
Other Wandsworth neighbourhoods.
We deliver projects across the borough — same team, same pricing, same fixed-price contract.
Ready to start your Balham project?
Free quote in 2 minutes — no callbacks, no commitment. Or talk to a real human on 0800 0432 333.