Fitting, altering or replacing an external flue, chimney, or soil and vent pipe is normally considered to be permitted development, not requiring an application for planning permission, providing certain conditions are met.

Read about the conditions which must be met to comply with permitted development rules.

Building regulations apply to installing a flue, and installation should be carried out by a suitably qualified installer.

Read about building regulations for flue installation.

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In many cases, you can build a porch without planning permission under permitted development rights, provided certain criteria are met. To qualify as permitted development, your proposed porch must:

• Not exceed three square metres in external ground area

• Be no taller than three metres in height

• Be located at least two metres away from any boundary with a highway

Read more about porches on Planning Portal

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Your local planning authority will decide whether or not you need to apply for planning permission for an Airbnb or bed and breakfast. This helps them understand how the property is used and its impact on neighbours and the local community.

Rules are different in London and you should contact your local planning authority for further information.

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Maintenance of fascias and soffit boards such as replacement or painting generally does not require planning permission.

However, if you live in a listed building or designated area (conservation area, national park, area of outstanding natural beauty) you should check with your local planning authority before carrying out any work.

Building regulation approval is not normally required for this work, but you should ensure that the ventilation for the building is not impacted.

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Increasing the size of a window will often fall under permitted development rights, meaning an application for planning permission is not required to make the change, provided limits and conditions are met.

Any new window must be of similar appearance to the original which you are replacing.

Permitted development rights do not apply to flats. To increase the size of a window in a flat or maisonette you will require planning permission.

 If you live in a listed building, you will require listed building consent for any major changes.

Where the work has as significant impact on the external appearance of the house, especially on the principal elevation, planning permission may be required.

Building control approval will likely be required where the change impacts the structure of a building, this primarily occurs when an opening Is widened. When altering walls you may want to consult a structural engineer.

Building control will also consider energy efficiency, glazing, ventilation and fire safety.