Last edited 11 Oct 2020

Full plans application


The Building Regulations set out what qualifies as ‘building work’ and so falls under the control of the regulations, the notification procedures that must be followed when starting, carrying out, and completing building work, and requirements for specific aspects of building design and construction. Building Regulations approvals can be sought either from the building control department of the local authority or from an approved inspector.

There are two possible routes for obtaining building regulations approval:

When submitting a full plans application, a completed application form should be included along with the appropriate charge that is required. A location plan or block plan (to scale 1:1,250) is required if the project is a new building or extension. In addition, two copies of the plans, with floor plans, elevations and sections (to scale no less than 1:100) should be included. These may need to ba accompanied by supporting calculations such as structural calculations.

On receiving the application, the local authority will check the plans and, if appropriate, consult other relevant authorities, e.g. fire, sewerage, health, etc. They must issue a decision within five weeks or a maximum of two months from the date of deposit (if an extension is agreed by the applicant). NB: Where demolition work is proposed, the owner must give the local authority building control department six weeks’ notice under Section 80 of the Building Act.

If the submitted plans are deemed to comply with the building regulations, then a notice will be issued stating that they have been approved. Alternatively, applicants may be requested to make amendments or provide further details. A conditional approval might also be issued which requests further plans to be submitted or modifications to be made before approval can be formally given. If the application is rejected then the reasons will be stated in the notice.

In the event of disagreement about an approval, a ‘determination’ can be sought (before the works start) from the Secretary of State for Communities and Local Government or from Welsh Ministers in the Welsh Assembly Government. It is also possible to seek relaxation or dispensation of the regulations from the building control department of the local authority under certain circumstances (see Department for Communities and Local Government guidance).

Full plans approvals are also subject to inspection during the course of the works at stages decided by the local authority (typically during the construction of foundations, damp proof courses and drains and perhaps other key stages), but as long as the work is carried out in accordance with the approved design, the risk of problems is very much reduced compared to a building notice application.

A full plans approval notice is valid for three years from the date of deposit of the plans. This can be very important given the speed at which the regulations change, meaning that a building which has been approved, but not built may require re-design and further approval if construction is delayed and the regulations change. If the three years expires without building work commencing, the local authority may send a notice to declare that the approval is ‘of no effect’, i.e. is no longer valid.

Failure to comply with the Building Regulations can result in a fine and/or an enforcement notice requiring rectification of the works. There is also a regularisation process for getting approval for works that have been carried out without approval.

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