Make an application

Types of Building Control Applications
There are a number of ways applications can be submitted to Building Control. These include:

1. Full Plans Applications
A Full Plans Application is required for:

• New build dwellings
• Extensions
• All non‑domestic applications
• Roof space conversions

It is recommended that designers or architects prepare full plans applications. These submissions should include detailed drawings, elevations, sections, and, where applicable, structural engineering reports and SAP (Standard Assessment Procedure) calculations. This documentation enables Building Control to assess compliance with the NI Building Regulations 2012 and subsequent amendments.

2. Building Notice Applications
A Building Notice Application is suitable for minor domestic work such as:

• Internal alterations or renovations
• Very small minor extensions (less than 10 sq.m)
• Installation or replacement of building services

In many cases, full formal working drawings are not required. However, depending on the complexity of the work, a Building Control Surveyor may request additional information such as sketches or structural assessments. For example, an internal wall removal requires a Building Control application, which can be submitted under a Building Notice with accompanying structural engineer’s information.

Note: A Building Notice cannot be submitted for non‑domestic work.

3. Regularisation Applications
If building work is completed without the appropriate Building Control application, this is referred to as unauthorised work. To rectify this, a Regularisation Application can be submitted. This application carries a 20% higher fee than a Full Plans or Building Notice application.

It is important to note that unauthorised work can lead to costly remedial work, and the Building Control Surveyor may require parts of the structure to be opened for inspection to confirm it meets regulatory standards.

Examples of Works Requiring a Building Control Application
The following works require a Building Control application (Full Plans, Building Notice, or Regularisation). If in doubt, always check with your local Building Control office. This list is not exhaustive and we would recommend you contact your local Building Control office if you are unsure.