Lambeth · London
Kitchen Extension in Lambeth
Mix of Victorian terraces and post-war stock — side returns and lofts dominate.
Lambeth
Kitchen Extension specialists across Lambeth.
We deliver kitchen extension projects across the full Lambeth postcode set — SW2, SW4, SW8, SW9, SW11, SW12, SE11, SE24, SE27. Mix of Victorian terraces and post-war stock — side returns and lofts dominate.
A kitchen extension combines a structural extension — side return, rear or wraparound — with a complete kitchen design and installation as a single fixed-price project. It's the most common instruction we receive across London: a homeowner who wants an open-plan kitchen-diner with garden views but doesn't want to manage a builder and a kitchen supplier separately. We handle design, consent, structural build, kitchen supply and installation start to finish. One contract, one project manager, one fixed price.
Every Lambeth project includes a free desk-based planning assessment before we quote. We know the local planning officers, party wall surveyors and approved inspectors by name.
Costs
Kitchen Extension cost in Lambeth 2026.
| Configuration | Cost range | Timeline |
|---|---|---|
| Side return extension + kitchen (3m wide) | £65,000–£90,000 | 10–13 wks |
| Rear extension + kitchen (3–4m deep) | £75,000–£105,000 | 11–14 wks |
| Rear extension + kitchen (5–6m deep) | £90,000–£120,000 | 12–15 wks |
| Wraparound + premium kitchen | £110,000–£130,000 | 14–16 wks |
Local advantage
Eight years of kitchen extension work in Lambeth.
Familiarity with Lambeth's planning officers, party wall surveyors and approved inspectors cuts weeks off the approval timeline. We deliver consistent quality across all 9 postcodes the borough covers.
Recent Lambeth work
Kitchen Extension examples.
Builderr vs other London builders.
The construction industry has a wide distribution of operators. Here's what changes between a directly-employed, fixed-scope outfit and the alternatives.
| Criterion | Builderr | Typical London builder | Cowboy outfit |
|---|---|---|---|
| Labour model | Directly employed team (PAYE) | Mixed subcontract gangs | Day-rate cash labour |
| Pricing | Fixed-scope itemised quote | Estimate + provisional sums | Verbal price + variations |
| Design & engineering | In-house architect + SE | Outsourced, separate billing | Builder draws on the back of an envelope |
| Planning + LDC handled | Yes — included in price | Often charged extra | Builder asks you to apply |
| Party wall surveyors | Instructed by us | Your responsibility | Skipped (illegal) |
| Building control | Plans + site inspections booked by us | Building Notice route | Not registered |
| Project management | Dedicated PM, weekly photo updates | Foreman doubles up | Owner-manager juggles 5 jobs |
| Payment schedule | Stage payments against signed-off milestones | Weekly invoices | Cash up front |
| Insurance | £10M PL + 10yr structural warranty | £2–5M PL only | No documented cover |
| Snags at handover | <3 typical | 20–30 typical | Walk-off mid-job common |
| Variation creep | 0% — fixed scope | +15–25% over original quote | +40%+ regularly |
Save £19,500–£43,875 on a kitchen extension in Lambeth.
Industry data (FMB, RICS, Which? Trusted Trader 2024) shows the average London construction project overruns by 18–22% on cost and 25–35% on time. Fixed-scope contracts with a single accountable team eliminate that variance. The savings above assume a typical project at £97,500.
FAQ
Kitchen Extension in Lambeth.
How much does a kitchen extension cost in Lambeth?+
Kitchen Extension projects in Lambeth typically cost £65,000–£130,000. Lambeth sits across postcodes SW2, SW4, SW8, SW9; local rates align with the wider London market.
Do kitchen extensions in Lambeth need planning permission?+
Mix of Victorian terraces and post-war stock — side returns and lofts dominate. We carry out a free desk-based planning assessment for your specific address before quoting, identifying whether permitted development, prior approval, or full planning applies.
Do you work across all Lambeth postcodes?+
Yes — we deliver kitchen extension projects across all Lambeth postcodes including SW2, SW4, SW8, SW9, SW11, SW12, SE11, SE24, SE27.
How much does a kitchen extension cost in London 2026?+
A kitchen extension combining structural build and kitchen fit-out typically costs £65,000–£130,000 in London. A side return + standard kitchen runs £65–90k; a rear extension + premium kitchen + premium glazing sits at £100–130k+.
Do I need planning permission for a kitchen extension?+
Most single-storey kitchen extensions fall under permitted development (up to 3m deep) or the Larger Home Extension scheme (up to 6m). Conservation areas and Article 4 zones need full planning. We assess your specific address on every quote.
Get a Lambeth kitchen extension quote.
Senior consultant call within one business hour. Fixed-scope quote for your Lambeth project — no provisional sums.
Other types in Lambeth
Explore other build types in Lambeth.
Kitchen Extension across London