09.08.2023:
Upward Extension to Existing Housing using New PD rights
We are working on the design of a single-storey upward extension to an existing three-storey
mixed-use building in Reading.
Working with a planning consultant we are considering applying for the
new Permitted Development (PD) rights introduced in 2020.
This new PD rights for upward extension allows us to build up to two storeys
on top of an existing housing without a planning permission, if certain conditions are met.
Some of the main conditions for an existing building to qualify as Class AA
'new dwelling houses on detached buildings in commercial or mixed use'
of Town and Country Planning (General Permitted Development) (England) (2015 with 2020 amendment) are as follows;
- Detached building
- Equal or more than three storeys in height
- The building was constructed between 1st July 1948 and 5th March 2018
- On 5th March 2018 the building was in use as one of the use class A1, A2, A3 or B1 etc.(commercial use), or a mixed use of these, or one or more of these plus Class C3 dwellinghouses.
A prior approval application to the local planning authority is required to confirm if all the conditions are met by the proposal.
Similar PD rights for upward extensions are also introduced for private houses, detached blocks of flats, terrace and detached buildings.