HomeWho & WhereWhat We DoSystemsProjectsBuilding RegulationsBlogRequest a Quote
Building Regulations

Use the official documents as a starting point.

Building Regulations depend on the property, the proposed work, and the route agreed with Building Control. This page keeps the source documents easy to find and gives a practical way to start reading them before speaking to a professional.

View Documents Talk to Byrecroft
Documents

Start with these references.

Open the source documents directly, then use your browser or PDF reader search for exact phrases such as "Part L", "ventilation", "fire safety", or "material alteration".

Official guidance

The Merged Approved Documents

The full combined Approved Documents PDF, updated October 2024, covering the practical guidance for the main technical parts.

Open PDF GOV.UK Page
Statutory instrument

The Building Regulations 2010

The legal regulations setting out requirements, procedures, definitions, exemptions, and schedules for building work.

Open Legislation
Process guide

Manual to the Building Regulations

A guide to the regulatory framework and building control process, useful before getting into the technical Approved Documents.

Open PDF GOV.UK Page
How To Use

A practical reading order.

  1. Define the work.Be specific: extension, renovation, loft conversion, roof work, drainage, structural alteration, electrical work, or change of use.
  2. Find the likely parts.Use the table on this page to identify the Approved Documents that are usually relevant.
  3. Search exact terms.Use the PDF search tool for phrases like "means of escape", "thermal element", "controlled service", or "notifiable work".
  4. Check interactions.One piece of work can trigger several parts. Structure, fire, ventilation, insulation, drainage, and electrics often overlap.
  5. Confirm before building.Agree the route with Building Control and get specialist input where drawings, calculations, or inspections are needed.
Common Starting Points

Which parts usually matter?

This is not a final compliance checklist. It is a sensible first scan for domestic projects before the details are checked.

Extensions

Part A, B, C, F, L, M and P depending on structure, fire, moisture, ventilation, energy, access and electrics.

Loft Conversions

Part A, B, K, L and P, with close attention to structure, escape routes, stairs, insulation and electrical work.

Roof Work

Part A, C and L are common starting points for structure, weather resistance and insulation upgrades.

Renovations

Part L, F, P and sometimes B or C depending on thermal elements, ventilation, services, fire and damp considerations.

Drainage

Part H covers foul water, rainwater, waste storage and related drainage considerations.

Electrical Work

Part P applies to electrical safety in dwellings, including when work is notifiable and how certification is handled.