The Town and Country Planning (General Permitted Development) (England) (Amendment) (No 2) Order 2020
This Order makes various amendments to the GPDO 2015 and allows for existing houses to be extended to provide more living space by constructing up to two additional storeys. It also introduces permanent permitted development (PD) Rights to allow the construction of up to two additional storeys on detached buildings and on buildings in a terrace that are houses or in certain commercial uses, to create additional self-contained homes.
The first set of amendments to the GPDO introduces a series of new classes of permitted development into Parts 1 and 20 of Schedule 2 of the 2015 Order (as amended), coming into force at 9.00am on 31 August 2020.
The principle in each case is that the construction of up to two additional storeys of new residential accommodation (or one storey if the case of an existing building that is only single-storey) is permitted development subject to the prior approval of certain matters by the local planning authority. Where the new accommodation is an extension to an existing dwelling it may be to enlarge the dwelling (Part 1, Class AA) or to create additional dwellings in the form of flats (Part 20, Classes AC and AD).
The permission in Part 1 is subject to a number of conditions and limitations. They include that the prior approval of the local planning authority must be obtained for certain detailed matters, that the permission is only available in the case of existing dwellings constructed between 1 July 1948 and 28 October 2018 (other than those developed as a result of a change of use in accordance with other provisions in the GPDO which are excluded) and that the permission is subject to an overall limitation on height and/or on the overall increase in height and on the maximum floor to ceiling height of the extension. The scope of prior approval under Part 1 includes the impact on the amenity of any adjoining premises, the external appearance of the dwellinghouse, air traffic and defence asset impacts and impacts on certain protected views.
The permissions in the new classes in Part 20 are only available in the case of buildings constructed between 1 July 1948 and 5 March 2018 and are subject to similar conditions and limitations, including that prior approval must be obtained for various detailed matters and that the permission is subject to limits on overall height etc. The scope of prior approval under Part 20 includes in relation to extensions to commercial buildings, impacts from noise from any commercial premises on the intended occupiers of the new dwellings and impacts from an increase in residential use on the carrying out of any trade, business or other use in the area.
In summary, the changes are:
In Part 1
Class AA – enlargement of a dwellinghouse by the construction of additional storeys
In Part 20
Class AA – new dwellinghouses on detached buildings in commercial or mixed use
Class AB – new dwellinghouses on terrace buildings in commercial or mixed use
Class AC – new dwellinghouses on terrace buildings in use as dwellinghouses
Class AD – new dwellings on detached buildings in use as dwellinghouses
- PD Rights for upwards extension of existing houses which are detached, semi-detached or in a terrace can be extended upwards to provide additional living space (amongst other things):
- Allows the construction of up to 2 additional storeys on the topmost storey of houses of 2 storeys or more, or 1 additional storey on houses of 1 storey, above ground level.
- Subject to a maximum height limit for the newly extended house of 18 metres, and where the house is in a terrace its height cannot be more than 3.5 metres higher than the roof of every other building in the row.
- Does not apply to Listed Buildings and Scheduled Monuments (or land within their curtilages), as well as Article 2(3) Land (Conservation Areas, World Heritage Sites, National Parks, etc.)
- Does not apply to dwelling-houses built before 1July 1948 or after 28 October 2018
- For upwards extensions to dwelling-houses, a condition is imposed that the materials used in any exterior work must be of similar appearance of the materials used in the construction of the existing house.
- For upwards extensions to detached buildings in commercial or mixed use; or terraced buildings, prior approval is required as to the external appearance of the building
- Prior approval is required for all upwards extensions in this PD right, although the provisions vary they do include amongst other things:
- the design and architectural features of the extension
- impact on the amenity of the neighbouring premises including overlooking, privacy and the loss of light
- PD Rights for the construction of new self-contained homes by allowing additional storeys to be constructed on detached buildings and on buildings in a terrace in certain commercial uses, and in mixed uses with an element of housing. They also allow additional storeys to be constructed on existing houses which are detached or in a terrace (which includes semi-detached houses) to create new self-contained homes (amongst other things):
- Up to 2 additional storeys of new homes can be constructed on the topmost storey of existing, detached, free-standing commercial or mixed use
- Buildings of 3 storeys or more above ground level. This is subject to a maximum height limit for the newly extended building of 30m.
- Where buildings are in a terrace (of 2 or more attached buildings) it allows upwards extensions to create new self-contained homes: up to 2 additional storeys of new homes can be constructed on the topmost storey of a building of 2 storeys or more above ground level, or 1 additional storey on a building of 1 storey. The overall height of the building when it is extended cannot be greater 18 metres and no more than 3.5 metres higher than the highest part of the roof of every other building in the row of the terrace.
- Exemptions and Prior Notifications are as above: i.e. Listed Buildings, SAMs, Conservation Areas and WHSs, etc. are excluded.
The Town and Country Planning (General Permitted Development) (England) (Amendment) (No 3) Order 2020
This Order amends the GPDO 2015 in England by inserting into Part 20 a new permitted development right Class ZA. This introduces a new PD Right to allow for the demolition of certain types of buildings and construction of a replacement building as residential, while allowing for local consideration of key planning matters.
The second set of amendments to the GPDO introduces a new Class ZA to Schedule 2, Part 20 of the GPDO coming into force at 10:00am on 31 August 2020 under the heading: ‘demolition of buildings and construction of new dwellinghouses in their place’.
The permitted development within the class is the demolition of one or other of a single purpose-built detached block of flats and any other single detached building comprising premises established for B1 use and existing on 12 March 2020 together with its replacement by a single building consisting of one or other of a purpose-built detached block of flats or a purpose-built detached dwellinghouse and the associated operations.
- The right will apply to vacant (for at least 6 months before prior approval application) free-standing buildings that fell within the B1(a) offices, B1 (b) research and development, B1 (c) industrial processes (light industrial), and free-standing purpose-built residential blocks of flats (C3) use classes. The right therefore does not apply to terraced buildings, detached dwelling houses, or to mixed use buildings other than those above.
- The right will apply to those buildings constructed before 1 January 1990.
- The right does not require detailed consideration of the condition of the building in respect of redundancy. It allows for redevelopment of a single new building within the footprint of buildings with a footprint of up to 1,000 square metres.
- The height of the new residential building should not exceed the lower of 7 metres above the height of the old building, or 18 metres above ground level.
- It does not apply to Listed Buildings and Scheduled Monuments (and within their curtilages, as well as Article 2(3) Land (Conservation Areas, World Heritage Sites, National Parks, etc.)
- Prior approval is required for, amongst other things:
- the design of the new building
- external appearance of the new building
- transport and highway impacts
- impact from noise from commercial premises
- the impact of the development on the amenity of the new building and of neighbouring premises, including overlooking, privacy and light
- the impact of the development on heritage and archaeology
- method of demolition of the existing building