Who are we and what do we do?

Welcome to CNC Building Control.

CNC provides the building control functions for the Local Authority areas of South Norfolk, King’s Lynn and West Norfolk, Fenland, Norwich City and Broadland. Building Control is a statutory requirement on the vast majority of building projects (including internal alterations and conversion works) irrespective of whether planning permission has been required or not.

It is the process of ensuring projects are completed in accordance with the Building Regulations and exists to ensure that the safety and well-being of any person is not compromised by changes or work that takes place.

In short, CNC are able to support you through your project from pre-planning and commencement through to project completion and issuing of certification.

We look forward to working with you.

Trusted advice for your home improvement

LABC FRONT DOOR
Visit LABC Front Door for practical guidance on home improvements, building regulations, planning permission, contracts, and working with builders and designers.

LABC represents local authority building control teams across England and Wales. Front Door provides independent information to help homeowners understand their responsibilities and make informed decisions.
Visit the LABC Front Door website

Building Safety Levy applies from 1 October 2026
From 1 October 2026, the Building Safety Levy will apply to relevant residential development in England. Applicants and developers must provide the required levy information as part of the building control process.

Read our Building Safety Levy guidance →

We can help you in numerous ways, including:

09/07/26 CNC Building Control Training Day – 16th September 2026 “Investing in Professional Excellence”

CNC Building Control would like to advise all customers, contractors, agents, architects, and developers that our surveying team will be attending a dedicated professional training day on Wednesday 16 September 2026. As a result, no site inspections will be undertaken on this date, and our surveying staff will be unavailable for routine inspection appointments. These... > Read More

06/05/26 Trainee Building Inspector Positions Available

Trainee Building Inspector Positions across England Salary:  £23,500 – £27,500 (dependent on experience)  Looking for an opportunity to earn while you learn and gain the qualifications needed to start a successful career in the construction industry? Having already recruited and trained 200 people, LABC, the organisation that represents all local authority building control teams in England and... > Read More

18/12/25 What to do if your Registered Building Control Approver can no longer control your work

What to Do If Your RBCA Can No Longer Act: A Guide to Reversion Applications If your Registered Building Control Approver (RBCA, formerly known as an Approved Inspector) is unable to continue overseeing your building project—perhaps due to ceasing trading or withdrawing from your project—there are important steps you need to follow to ensure your... > Read More

03/05/23 New Building Regulations/Approved Documents – Transitional Arrangements Update

There were substantial changes to the Building Regulations in June 2022 in respect of Part F (Ventilation), Part L (Conservation of Fuel & Power), new Part O (Overheating Mitigation) and new Part S (Infrastructure for Charging Electric Vehicles). Any application submitted prior to 15 June 2022, where the work does not commence before 15 June... > Read More

18/01/23 Leading the Way into 2023

Following the Grenfell tragedy and subsequent enquiry, there are reforms being introduced by the new Building Safety Regulator and regulatory changes passed by parliament.  One of these changes will see a requirement for all building control professionals to be accredited by April 2024.  The level of accreditation will correspond to the type of work they... > Read More