Permitted development rights are a set of national policies that permit householders to carry out certain improvement and extension work or repurpose their properties without applying for development permission from the local authority. With this pre-approved permission by the parliament, householders can extend or repurpose their properties to a certain extent without applying for full Development Permission, which saves time and money so far they act within the limits of relevant rules. This time, we will look into the permitted development rights and how wide or slim their limitations are.
What Are The Projects Covered By The Permitted Development Rights?
This right allows householders to embark on improvements and extension work on their residential and commercial properties as long as they act within the limits of the law.
Rear Extension Projects
Building work must not go beyond the existing property’s rear wall by 3 meters for an attached house, or 4 meters are for a detached house.
- Must use the same construction materials as the existing house
- Must occupy less than 50 per cent of the size of the land around the existing house
- Must be less than 4 meters in height or less than 3 meters if it is within 2 meters of a property boundary
- Must have eaves and a ridge not taller than the existing house
Side extension projects
It must be at the side of the existing house so far it does not face the highway.
- Must use the same construction materials to the existing house
- Must occupy less than 50 per cent of the size of the land around the existing house
- Must occupy less than 50 per cent of the width of the existing house
- Must be less than 4 meters in height or less than 3 meters if it is within 2 meters of a property boundary
- Must have eaves and a ridge not taller than the existing house
Wraparound Extension Projects
When it comes to building works that involve both the side and rear extension to create a ‘wraparound’, the permitted development rights restrictions will be evaluated using the criteria for both side and rear extensions individually. It makes it difficult for the projects to be covered by the permitted development rights.
Two-Storey Extension Projects
There should be no windows in the wall and roof slope of side elevation in different storeys.
- Must occupy than 50 per cent of the width of the existing house
- Must occupy less than 50 per cent of the size of the land around the existing house.
- Must use the same construction materials to the existing house
- Must have eaves and a ridge not taller than the existing house
- Terraces must be no more than 3.5 meters higher than the next most elevated terrace.
Garage Conversion Projects
Construction works must be internal.
- Must use the same construction materials to the existing house
- Must not enlarge the existing building
- If you are converting a detached garage into a bedroom, living room, or office, you may require a development right.
Loft Conversion Projects
Must have volume freedom of 50 cubic metres of additional roof space for detached and semi-detached houses
- Must use the same construction materials to the existing house
- Must not include a window in any section or roof slope creating a side rise of the dwelling
- The roof pitch of the primary part of the dwelling and the existing house\’s roof pitch must be the same.
- Must have a dormer wall that is set back at least 20 centimetres from the existing wall face
- Must have windows that are non-opening if less than 1.7 meters from the floor level
- Must have side windows that are obscured or frosted
Constructing A New Storey or Flat On Your Property
There can’t be windows in the wall or roof slope on added storeys.
- You may include up to two additional storeys on the topmost storey of a detached house of two storeys or more of the existing multi-storey properties,
- The newly extended house must have a maximum height limit of 18 metres.
- Terraces must not be more than 3.5 meters higher than the next tallest terrace.
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