Your Building Control Team

When your project might not need Building Regulations

Some building types and extensions are exempt from the building regulations. This means an application doesn’t need to be submitted to Building Control. You might still need planning permission though, so make sure you check first with your local council planning department.


A conservatory is normally exempt if it is:

Note - You will however need building regulations approval if you need to create a new structural opening between your new exempt conservatory and the rest of your home.


Are normally exempt if they are:

Garages & carports

Would not normally need building regulations if:

Detached buildings

Small detached buildings such as a garden shed or summerhouse in the garden will not normally require building regulations if the floor area of the building is less than 15m2.

If the floor area is between 15-30m2 you will not normally require building regulations providing that the building is either at least 1m from the boundary or it is constructed of substantially non-combustible material.

Getting the right information & advice

The tutorials and homeowner guides on our Library page helps explain these requirements in more detail.

Further guidance on common building projects is available on the LABC Front Door website.

Alternatiively, use the Planning Portal website's interactive house guide and the Planning Portal website's interactive terrace guide to find out whether your proposal requires building regulations approval, planning permission, neither of these or both. Please remember, the owner of the property or land, is legally responsible for complying with the relevant planning rules and building regulations. Shops and flats are included in the terrace guide.

We advise you to contact us and the relevant authority's planning team with details and sketches before proceeding too far. It is advisable to ensure that any proposed structure is not constructed so that it restricts ladder access to windows serving a room in the roof or upper floor. These may be needed as an emergency escape route in the case of fire.

Contact us with your building regulation enquiry. If your proposal is found to be exempt from Building Control Regulations, we can provide written confirmation that the work does not require approval. This service does incur a charge but you may find it useful to keep our response for future reference, particularly if you come to sell the property in the future.


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