How Much Does Building Control Cost UK

Why Fees Are Charged

Building control is a statutory service, but it is not free. Fees are charged to cover the cost of plan checks, site inspections, and issuing certificates. Whether you use your local authority or a private approved inspector, charges will apply. These fees vary depending on the type, size, and complexity of the work, but they are an important part of ensuring the project is safe and compliant with Building Regulations.

Cost for Small Projects

For minor works, such as removing a non load bearing wall, installing a lintel, or converting part of a garage, building control fees are typically in the region of £200 to £400. This usually covers the submission and all necessary inspections. If the work is straightforward and only requires one or two site visits, the cost will be at the lower end of the scale.

Cost for Extensions and Loft Conversions

For larger domestic projects like single storey extensions, loft conversions, or significant structural alterations, building control costs usually range between £500 and £900. The fee reflects the number of inspections required at different stages, such as foundations, insulation, and fire safety measures. More complex projects that involve multiple elements will be at the higher end of the scale.

Cost for New Builds

For a new build house, building control costs are higher due to the number of checks and site visits required. Fees typically range from £1,000 to £2,000 or more, depending on the size of the property. Larger or bespoke homes may be subject to individually assessed fees, as they require more detailed plan checking and more frequent inspections during the build.

Local Authorities vs Approved Inspectors

Both local authority building control teams and private approved inspectors set their own fees. Local authorities usually publish standard charges on their websites, while approved inspectors often provide a bespoke quote based on your project. In some cases, using an approved inspector can be slightly more expensive, but homeowners and builders sometimes prefer them for their flexibility and speed of service.

Why Paying the Fee Matters

Paying building control fees is not just a formality. It ensures your work is inspected and signed off, giving you a completion certificate at the end of the project. Without this certificate, you may struggle to sell or remortgage your home in the future. The cost of building control is small compared to the overall value of most projects and provides reassurance that the work has been carried out to legal standards.

Conclusion

Building control costs in the UK vary widely depending on the scale of the project. Small works can be covered for a few hundred pounds, while new builds may cost several thousand. Whether you use your local authority or an approved inspector, these fees are a necessary part of ensuring your property is safe, compliant, and properly documented.