Planning - Permitted Development Rights
Wales
New planning rules that make it easier for people to install microgeneration equipment in their homes came into effect from the beginning of September 2009. Permitted Development Rights are extended to allow a greater range of domestic microgeneration equipment to be installed without requiring planning permission, subject to specific criteria. The Welsh Assembly Government have published a leaflet for households explaining the changes - Domestic microgeneration permitted development: A guide for Householders.
Scotland and Northern Ireland
Permitted Development and planning policy in general is a devolved responsibility. The Scottish Government and Northern Ireland Government are currently all considering changes to their legislation on permitted developments, to facilitate installations of microgeneration technologies.
Until then, householders in Scotland and Northern Ireland must consult with their local authority regarding planning permission.
England
The permitted development rights for low carbon and renewable technologies were changed on the 6th April 2008, lifting the requirements for planning permission for the technologies detailed below.
To read "The Town and Country Planning (General Permitted Development) (Amendment) (England) Order 2008" please click here. The General Permitted Development Order has been extended to include:
Solar PV and Solar Thermal (roof mounted):
Permitted unless;
- panels, when installed, protrude more than 200mm
- it would result in the highest part of the solar PV or solar thermal equipment being higher than the highest part of the roof (excluding any chimney)
- they would be placed on a wall forming the principal or side elevation of the dwellinghouse and would be visible from a highway in buildings in Conservation Areas and World Heritage Sites
Solar PV and Solar Thermal (stand alone):
Permitted unless:
- more than 4 metres in height
- installed less than 5 metres away from any boundary
- above a maximum area of array of 9m2
- situated within any part of the curtilage of the dwelling house or would be visible from the highway in conservations areas and World Heritage Sites
Biomass Boilers and Stoves, and CHP:
Permitted unless:
- flue exceeds 1m above the roof height
- installed on the principal elevation and visible from a road in buildings in conservation areas and World Heritage Sites.
Ground Source Heat Pumps:
Permitted.
Water Source Heat Pumps:
Permitted.
Micro Wind
Due to legal technicalities the current statutory instrument (SI) does not cover micro wind. Once these issues have been resolved, it is expected that roof mounted and free standing micro wind turbines will be permitted at detached properties that are not in conservation areas. Further legislation is expected later this year.
Until then, you must consult with your local authority regarding planning permission.
Air Source Heat Pumps (ASHP):
ASHP is in a similar situation to micro wind. Once the legal technicalities have been resolved, it is expected that air source heat pumps will be permitted developments. Again, further legislation is expected later this year.
Until then, you must consult with your local authority regarding planning permission.
(Note that the permitted development rights are not extended to Listed Buildings which are covered by other planning regulations.)
The UK Planning Portal's Greener Homes section, supported by the Energy Saving Trust, can assist as an informal guide to planning. Visit the Greener Homes section.
For specific questions regarding planning in your local area you must ask your local planning authority. Click here to find your local planning authority (external website).
