Building control

Building regulations drawings in London.

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 calcs coordinated.

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From £840 fixed fee 98% first-time approval All London boroughs
Building Regulations in London
What's included

Fully end-to-end, nothing extra to add.

Full construction drawings

Plans, sections and elevations at 1:50 with full annotation, material specification and construction detail.

Thermal (Part L) calculations

U-values for walls, roof, floor and glazing; SAP or SBEM where required; compliance statement.

Structural calculations

Chartered engineer sign-off on beams, pad foundations, lintels, roof structure, CDM coordination.

Fire safety (Part B) strategy

Escape routes, compartmentation, smoke alarms, fire-rated construction — critical for flats and HMOs.

Drainage & services layout

Soil and vent pipe routes, MVHR coordination, EV charging provision (Part S).

Building Control submission

Full Plans submission to LABC or approved inspector; inspections coordination through to completion certificate.

Building Regulations FAQs

Common questions.

Every case is different. Call 020 7946 0000 for a five-minute chat.

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Do I need building regs if I have planning?

Yes — planning and building regs are separate regulatory regimes. Planning governs what you can build (design, use, visual impact); building regs govern how it's built (safety, structure, energy). Almost every extension, loft and conversion needs both.

LABC or approved inspector — which is better?

LABC (Local Authority Building Control) is often cheaper and preferred by smaller builders. Approved inspectors are private and typically faster with more consistent inspectors. We submit to either. Post-Grenfell, LABC is mandatory for high-risk buildings.

When are structural calculations needed?

Whenever you remove or modify load-bearing structure: opening up a wall, cutting a floor for a staircase, extending at ground floor. Our Complete package includes calcs; Essentials doesn't.

What about Part F ventilation and Part O overheating?

Both are included in the compliance package. Part O (overheating, 2022) is particularly relevant for flat conversions and south-facing loft conversions — we model it routinely.

Can you submit retrospectively?

Yes — a Regularisation Certificate application covers work built without building regs. We inspect, draft compliance drawings and apply. Price from £560 plus LABC fees.

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Fixed fee from £840. Free quote in 60 seconds. Covers every London borough.

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