A construction-ready drawing package compliant with every Approved Document — Part A structure, Part B fire, Part L thermal, Part M accessibility — submitted to LABC or your approved inspector with structural calculations coordinated.
A construction-ready drawing package compliant with every Approved Document — Part A structure, Part B fire, Part L thermal, Part M accessibility — submitted to LABC or your approved inspector with structural calculations coordinated.
Housing stock in Lambeth: Victorian terraces in Clapham, Brixton, Herne Hill; Edwardian villas; 1930s and post-war estates in parts of Streatham; Georgian in Kennington.
Character: Mix of dense Victorian residential and post-war estate; strong conservation area coverage; generally design-led planning decisions.
Article 4: Borough-wide Article 4 for HMO conversions; plus office-to-residential restrictions.
Plans, sections and elevations at 1:50 with full annotation and material specification.
U-values for walls, roof, floor and glazing; SAP or SBEM where required; compliance statement.
Chartered engineer sign-off on beams, pad foundations, lintels, roof structure.
Escape routes, compartmentation, smoke alarms, fire-rated construction detail.
Soil and vent pipe routes, MVHR coordination, EV charging (Part S).
Full Plans submission to Lambeth Council Building Control or an approved inspector with inspections coordinated through to completion certificate.
Single planning or regs submission.
Planning + building regs + structural.
Listed, conservation, complex sites.
Direct answers to the questions Lambeth homeowners ask every week about building regulations drawings.
Start a free quote →In Lambeth, you can submit building regulations applications to either Lambeth Council's in-house Building Control (LABC route) or to a private approved inspector. Both routes produce the same legally-valid completion certificate. We submit to whichever suits your project and builder.
Fixed fees in Lambeth start at £840 for a straightforward extension or loft. Complex projects (HMOs, basement conversions, flat splits) range £1,500–£2,500. Structural calculations are £350–£1,050 depending on the intervention.
Yes — every habitable loft conversion in Lambeth (and across England) requires Building Regulations approval covering fire escape, floor structure, insulation and staircase. This is independent of whether you also need planning permission.
Part L of the Building Regulations sets minimum energy-efficiency standards — insulation, glazing U-values, air permeability, heating efficiency. New extensions in Lambeth must meet the 2025 uplift (Future Homes Standard transition). We include full Part L calculations and a compliance statement in every Complete package.
Once submitted, Lambeth Council Building Control reviews Full Plans within 5–8 weeks. Approved inspectors typically review in 2–4 weeks. On-site inspections run through the build — typically 6–10 visits depending on scope.
In Lambeth, building regulations are required for: loft conversions, extensions, structural alterations, roof replacements, new openings in walls, and any work to a flat. Some minor works (like-for-like replacements, small porches) are exempt. We confirm at the free site visit.
A completion certificate from Lambeth Council Building Control (or an approved inspector) confirms your works comply with Building Regulations. It is essential for selling or re-mortgaging — lenders and conveyancers require it. We manage the inspection sequence and close out sign-off as part of every Complete package.
Extensions and loft conversions in Lambeth that change the building's energy characteristics require an updated EPC (or SAP/SBEM calculation as part of Part L compliance). We include Part L calculations in every Complete and Bespoke package.
We cover every London borough with the same fixed-fee approach. If your property sits on a boundary, here are the neighbouring options.
We cover every architectural technology service in Lambeth with one chartered team.
From £840. A fixed-fee, end-to-end service — measured survey, scaled drawings, Design & Access Statement where required, Planning P...
From £1,225. Every loft type across every Lambeth roof line — dormer, mansard, hip-to-gable, L-shape, Velux. LDC or full planning rou...
From £1,225. The whole spectrum — rear extensions, side returns, wraparounds, double-storey, basement digs. Planning-led design with ...
From £1,575. Lambeth's most space-efficient loft solution when PD-route dormers are blocked. Our chartered team designs mansards that...
From £995. Turn your unused Lambeth garage into a bedroom, home office or open-plan kitchen-diner. Planning route assessment, full ...
From £1,950. Full architectural technology service for basement digs and cellar conversions in Lambeth — structural underpinning desi...
From £350. Chartered structural engineer calculations for every residential intervention in Lambeth — steel beams, lintels, pad fou...
From £540. Fixed-fee measured surveys across Lambeth from £540 — floor plans, elevations and sections to ±3mm accuracy. Leica Disto...
From £450. End-to-end Party Wall Act 1996 service for Lambeth — Section 1, 3 and 6 notices, schedule of condition surveys, party wa...
From £1,225. London's most popular loft type — the full-width rear dormer. Planning or Permitted Development route assessed for your ...
Leave your number and an Architectural technologist will call you back within 30 minutes during working hours.
No obligation. No sales pressure. Just expert advice about building regulations drawings in Lambeth.
Free quote in 60 seconds. Fixed fee from £840. MCIAT chartered.
Get my free quote →