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For houses, replacing windows with double glazing usually doesn’t require planning permission, provided the style and appearance are similar to the original. However, if you live in a flat/maisonette, listed building, or a conservation area, planning permission or listed building consent may be required, especially if the changes affect the external appearance.
Read more about planning permission for windows and doors for houses
Read about planning permission for windows and doors for flats and maisonettes
Building a porch at ground level and under 30 square metres in floor area is normally exempt from the need for building regulations approval.
This is provided that glazing and any fixed electrical installations comply with the appropriate sections of building regulations.
To find out more about the building regulations for porches, visit Planning Portal.
Find out more about glazing and electrical installations
Adding a new driveway to an unclassified road for access to a house or business falls under permitted development rights, meaning no application for planning permission is required.
If you live in a listed building, you will have to apply for listed building consent for any significant works, whether internal or external.
You will have to apply to the relevant highway authority for a dropped kerb if you wish to cross a pavement to access your property.
Many homeowners choose to replace their traditional polycarbonate conservatory roof with a solid tiled roof for better thermal efficiency.
If the change significantly alters the structure or appearance of the roof, then planning permission may be required. Most alterations to roofs are considered permitted development, providing they meet the limits set out in legislation.
A new roof must comply with building regulations to ensure it is structurally safe, energy efficient and properly ventilated.
Whether raising the height of an external door requires planning permission depends on the location of the door, location of the property and how drastic the height change will be.
For smaller changes to the side and rear of the property, permitted development rights may apply, meaning no application or planning permission is required.
Where the height change will be substantial and have a significant impact on the building’s appearance, planning permission is likely to be required. Especially in cases where the door to be heightened is on the principal elevation of the property.
Principle elevation - The most visible or prominent side of a structure, typically facing a street or public area. While often considered the 'front' of the building, it may not always contain the main entrance.
In designated areas such as conservation areas, or on listed buildings you may require additional approvals such as listed building consent.
If you believe permitted development rights apply to a small change, you can apply for a lawful development certificate to ensure this is the case.
Building regulations 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.
Raising your garden level a small amount is likely to not require planning permission as it is likely to have minimal impact on the chances of flooding or overlooking your neighbours.
Increases of over 30cm may require planning permission as a significant change can impact drainage or your neighbours. If the changes are close to a boundary, you should consider whether it will overlook your neighbours or be intrusive.
You should contact your local planning authority to understand whether your proposed changes will require planning permission.