# The Planning (General Permitted Development) (Amendment) Order (Northern Ireland) 2023, Paragraph 3

Extent: N.I.

For Class F and Class G substitute—
“
Class F
Permitted development
F.
The provision of a ground or water source heat pump within the curtilage of a dwellinghouse.
Development not permitted
F.1
Development is not permitted by Class F if—
(a) any part of the heat pump or its housing would be within 3 metres of the boundary of the curtilage of the dwellinghouse and would exceed 4 metres in height;
(b) it would involve the provision of any heat pump within an area of special scientific interest or a site of archaeological interest.
Class G
Permitted development
G.
The installation, alteration or replacement of an air source heat pump within the curtilage of a dwellinghouse.
Development not permitted
G.1
Development is not permitted by Class G if—
(a) it would result in the presence within the curtilage of more than one air source heat pump;
(b) any part of the air source heat pump would be installed within 1 metre of the boundary of the curtilage of another dwelling house;
(c) any part of the air source heat pump would be situated on land forward of a wall which—
(i) faces onto a road; and
(ii) forms either the principal elevation or a side elevation of the original dwellinghouse.
(d) in the case of a dwellinghouse within a World Heritage Site or conservation area any part of the air source heat pump faces onto and is visible from a road;
(e) the external unit of the air source heat pump would exceed 3 metres in height;
(f) the air source heat pump would be installed on a roof;
(g) the air source heat pump would be situated within the curtilage of a listed building unless listed building consent for the development has previously been granted.
Conditions
G.2
Development is permitted by Class G subject to the following conditions—
(a) the air source heat pump would be used to provide heat for use within the curtilage of the dwellinghouse;
(b) when no longer used to provide heat it shall be removed as soon as reasonably practicable; and
(c) the air source heat pump must comply with MCS planning standards or equivalent standards.
Interpretation of Class G
G.3
In Class G “MCS Planning Standards” means the product and installation standards for air source heat pumps specified in the Microgeneration Certification Scheme MCS 020 .
”

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Source: https://www.legislation.gov.uk/nisr/2023/95/schedule/paragraph/3 (the official version)
Page: https://openlegislation.uk/planning-general-permitted-development-amendment-order-northern-ireland-2023/schedule/paragraph-3
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.