Building Regulations approval in Northern Ireland explained

Building Regulations set minimum standards for building work. They cover areas such as structure, fire safety, moisture, drainage, ventilation, energy efficiency, glazing and access. Northern Ireland’s district councils deliver Building Control services.

Is Building Control the same as planning permission?

No. Planning considers whether development is acceptable in its location and context. Building Control considers whether the work complies with the Building Regulations. A project may need both, one or neither, depending on its nature.

What domestic work commonly needs an application?

Building Control NI identifies new homes, extensions and many smaller works as requiring applications. Examples can include structural alterations, roof-space conversions, attached garages, new roof windows, heating appliances, cavity-wall insulation and work affecting fire safety. Exemptions exist, but conditions can be precise.

What are the application routes?

The suitable route depends on the project. Full plans provide detailed information for assessment before construction. Other procedures may be available for particular domestic work. Ask the council’s Building Control team which route is appropriate before starting.

What happens during construction?

Notify Building Control at the required stages so inspections can take place. Inspections do not replace the responsibilities of the homeowner, designer or contractor, and they may not observe every element. Keep photographs of important concealed work and records for specified products and tests.

What should you receive at completion?

Confirm that all required inspections and information have been provided and ask Building Control about the applicable completion documentation. Also collect certificates for electrical, gas, oil, ventilation, glazing or other specialist work where relevant.

Keep a permanent project record

• Application forms, approved drawings and calculations.
• Planning decisions or confirmation where relevant.
• Inspection correspondence and completion documents.
• Test and commissioning certificates.
• Product data, warranties and photographs of concealed work.
• Designer, engineer and contractor details.

These records can be important when maintaining, altering, insuring or selling the property.