ACT Building Control
Based in Gloucester, Gloucestershire · Covers London, Birmingham, Bristol, Gloucester and Surrey; says it works throughout the UK Accreditation stated by provider: Registered Building Control ApproverOwn website
03 · Existing buildings & works · RBCA
Building control approver in London
17 providers offering building control approver in or across London, including national firms. Your council’s building control team, or a registered building control approver (in England and Wales).
Who needs oneAnyone doing building work covered by the Building Regulations, such as extensions, loft and garage conversions, structural alterations and new homes
Who can do itYour council’s building control team, or a registered building control approver (in England and Wales)
WhenArrange it before work starts; inspections happen at key stages during the build
17 building control approvers for London
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Showing all 17 providers
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Based in or covering London (15)
Approved Inspectors Ltd
Based in Lancaster, Lancashire · Covers England and Wales (offices in Lancashire, Cheshire, Manchester and the Midlands) Accreditation stated by provider: Registered Building Control Approver, ABCA, CABE affiliate, ISO 9001 (NQA, UKAS), Cyber EssentialsOwn website
Building Control Services (Approved Inspectors) Limited
Based in Chelmsford, Essex · Covers Essex, London and Hertfordshire Accreditation stated by provider: Registered Building Control Approver, ISO 9001, ABCA, CABEOwn website
Complete Building Control Ltd
Based in Birmingham, West Midlands · Covers London, the Midlands and Cheshire (offices in Birmingham, Loughton and Congleton) Accreditation stated by provider: Registered Building Control Approver, RICS regulated, CABE, ABCAOwn website
Compliance Building Control
Based in Hailsham, East Sussex · Covers London, Kent, Sussex, Essex, East Anglia and parts of Surrey Accreditation stated by provider: Registered Building Control Approver (BSR), ISO 9001Own website
Cook Brown Building Control Ltd
Based in Bristol, North Somerset · Covers England and Wales Accreditation stated by provider: Registered Building Control ApproverOwn website
Corporate Approved Inspectors Ltd
Based in Camberley, Surrey · Coverage not stated, so check with the provider Accreditation not yet checkedOwn website
H+O Consulting Ltd
Based in Farringdon, London · Coverage not stated, so check with the provider Accreditation stated by provider: Registered Building Control Approver (BSR), ISO 9001Own website
London Building Control Ltd
Based in London · Covers England and Wales Accreditation stated by provider: Registered Building Control Approver, RICS, CABE corporate partner, ISO 9001Own website
MC Plan & Site Services
Based in Poole, Dorset · Covers England and Wales Accreditation stated by provider: Registered Building Control Approver, ISO 9001, CIOB Chartered Building CompanyOwn website
MFA Building Control Ltd
Based in Derby, Derbyshire · Covers Commercial work across England and Wales; domestic work around its East Midlands and South Yorkshire offices Accreditation stated by provider: Registered Building Control ApproverOwn website
NHBC
Based in Milton Keynes, Buckinghamshire · Covers England and Wales (new homes) Accreditation stated by provider: Registered Building Control ApproverOwn website
Salus (Building Control & Fire Safety Consultants) Ltd
Based in Hinckley, Leicestershire · Covers England and Wales Accreditation stated by provider: Registered Building Control Approver (BSR), CABE affiliate partner, Constructionline, SafeContractor, ISO 9001Own website
Stroma Built Environment
Based in Wakefield, West Yorkshire · Covers UK-wide Accreditation verified 12 October 2026Own websiteUK-wide
Total Building Control Ltd
Based in Swansea, West Glamorgan · Covers Wales, the South West, London, the South East and the Midlands (offices in Swansea, Bath and Brighton) Accreditation stated by provider: Registered Building Control Approver, CABE, ABCA, ISO 9001:2015 (UKAS accredited)Own website
National providers (check they cover your area) (2)
enevo
Based in Birstall, West Yorkshire · Covers UK-wide (national network of local assessors) Accreditation verified 12 October 2026Own websiteUK-wide
HCD Group
Based in Cardiff · Covers UK-wide Accreditation stated by provider: Building Control Approved Inspector (as stated on site)Own websiteUK-wide
Building control approver in other regions
South East (14) East of England (13) South West (10) West Midlands (12) East Midlands (13) Yorkshire and the Humber (12) North West (11) North East (9) Wales (12)
Building control approver in London
This page lists building control approvers covering the 32 London boroughs and the City of London.
We list 15 firms for building control approver in London. All of them also cover other regions. Another 2 firms say they cover the whole UK.
Of the 15, 14 state an accreditation or membership, most often Registered Building Control Approver (13) and ISO 9001 (7). We have verified 1 of the 15 listings; the rest are as each firm states. See how we check listings.
Nearby regions for building control approver: South East and East of England. Other reports in London: structural engineer’s report, SAP calculations, air tightness testing and party wall surveyor.
About building control approver
Most building work, from extensions and loft conversions to new homes and conversions, has to be checked against the Building Regulations. In England and Wales you can usually choose who does that: your council’s building control team, or a private registered building control approver. Either way, the check needs to be arranged before work starts.
Getting signed off in England
In England, your council’s building control team or a registered building control approver checks the work. They issue a completion or final certificate once they have the reports they need, such as the as-built SAP, EPC, air test and any sound or ventilation test results.