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Conservation areas in London Borough of Hillingdon

42 conservation areas and 150 Article 4 directions on the official register. If your property is in one, extensions, lofts, cladding, outbuildings and demolition follow stricter rules.

Council website

Conservation areas

Black Jacks Lock (ref. COA00000469)

Official record · ref. COA00000469

Rules & record

Black Jacks Lock (ref. CA-14)

Designated 1975 · ref. CA-14

Rules & record

Botwell: Nestles

Designated 1988 · ref. CA-17

Rules & record

Botwell: Thorn EMI

Designated 1988 · ref. CA-16

Rules & record

Bulls Bridge (ref. 3420)

Designated 1973 · ref. 3420

Rules & record

Bulls Bridge (ref. CA-31)

Designated 1973 · ref. CA-31

Rules & record

Copper Mill Lock

Designated 1980 · ref. 8989

Rules & record

Coppermill Lock (ref. COA00000500)

Official record · ref. COA00000500

Rules & record

Coppermill Lock (ref. CA-14A)

Official record · ref. CA-14A

Rules & record

Cowley Church (St. Laurence)

Designated 1998 · ref. CA-19

Rules & record

Cowley Lock

Designated 1975 · ref. CA-26

Rules & record

Cranford Park (ref. 3419)

Official record · ref. 3419

Rules & record

Cranford Park (ref. CA-30)

Designated 1991 · ref. CA-30

Rules & record

Denham Lock (ref. 3414)

Designated 1975 · ref. 3414

Rules & record

Denham Lock (ref. CA-24)

Designated 1975 · ref. CA-24

Rules & record

Eastcote (Morford Way)

Designated 1988 · ref. CA-34

Rules & record

Eastcote Park Estate

Designated 2005 · ref. CA-37

Rules & record

Eastcote Village

Designated 1970 · ref. CA-29

Rules & record

Harefield Village

Designated 2024 · ref. CA-1

Rules & record

Harlington Village

Designated 2005 · ref. CA-39

Rules & record

Harmondsworth Village

Designated 2046 · ref. CA-10

Rules & record

Hayes Village

Designated 2046 · ref. CA-8

Rules & record

Hillingdon Village

Designated 1973 · ref. CA-7

Rules & record

Ickenham Village

Designated 2046 · ref. CA-4

Rules & record

Longford Village

Designated 1970 · ref. CA-20

Rules & record

Northwood Town Centre, Green Lane

Designated 2009 · ref. CA-36

Rules & record

Northwood, Frithwood

Designated 1989 · ref. CA-15

Rules & record

Old Uxbridge / Windsor Street (ref. COA00000471)

Official record · ref. COA00000471

Rules & record

Old Uxbridge / Windsor Street (ref. COA00000513)

Official record · ref. COA00000513

Rules & record

Old Uxbridge / Windsor Street (ref. CA-5)

Designated 1973 · ref. CA-5

Rules & record

Old Uxbridge / Windsor Street (ref. CA-5A)

Designated 1973 · ref. CA-5A

Rules & record

Rockingham Bridge, Uxbridge

Designated 2012 · ref. CA-35

Rules & record

Ruislip Village

Designated 1827 · ref. CA-3

Rules & record

Ruislip, Manor Way

Designated 1989 · ref. CA-27

Rules & record

Springwell Lock

Designated 1975 · ref. CA-21

Rules & record

The Glen, Northwood (ref. 3408)

Official record · ref. 3408

Rules & record

The Glen, Northwood (ref. CA-38)

Designated 2007 · ref. CA-38

Rules & record

The Greenway

Designated 1975 · ref. CA-6

Rules & record

Uxbridge Lock

Designated 2003 · ref. CA-33

Rules & record

Uxbridge Moor

Designated 2003 · ref. CA-32

Rules & record

West Drayton Green

Designated 1827 · ref. CA-9

Rules & record

Widewater Lock

Designated 1988 · ref. CA-23

Rules & record

What a conservation area changes

Extensions

Side extensions, and rear extensions of more than one storey, are not permitted development — they need planning permission. Single-storey rear extensions keep their normal limits, but the Larger Home Extension prior-approval route is not available.

Lofts and roofs

Roof extensions such as dormers are not permitted development. Rooflights are usually fine if they don't project more than 15 cm.

Cladding

Cladding the outside of a house in stone, artificial stone, pebble dash, render, timber, plastic or tiles needs planning permission.

Outbuildings

Garden rooms, sheds and other outbuildings to the side of the house need planning permission.

Demolition

Demolishing a building larger than 115 m³ needs planning permission. Taking down a wall, gate or fence over 1 m high next to a road (or 2 m elsewhere) also needs permission.

Trees

You must give the council six weeks' notice before cutting down or pruning most trees (trunk over 7.5 cm across at 1.5 m high), even if they are not protected by a tree preservation order.

Article 4 directions

Councils can remove more permitted development rights — for example for windows, doors, porches or front boundaries — with an Article 4 direction. Check the council's list below.

Article 4 directions in London Borough of Hillingdon

These remove some permitted development rights in the areas they cover — check whether one applies to your property before you rely on permitted development.

Changes of use from commercial, business and service uses to dwellinghouses (27 March 2024)
Changes of use from commercial, business and service uses to dwellinghouses (27 March 2024)
Changes of use from commercial, business and service uses to dwellinghouses (27 March 2024)
Changes of use from commercial, business and service uses to dwellinghouses (27 March 2024)
Changes of use from commercial, business and service uses to dwellinghouses (27 March 2024)
Changes of use from commercial, business and service uses to dwellinghouses (27 March 2024)
Changes of use from commercial, business and service uses to dwellinghouses (27 March 2024)
Changes of use from commercial, business and service uses to dwellinghouses (27 March 2024)
Changes of use from commercial, business and service uses to dwellinghouses (27 March 2024)
Changes of use from commercial, business and service uses to dwellinghouses (27 March 2024)
Changes of use from commercial, business and service uses to dwellinghouses (27 March 2024)
Changes of use from commercial, business and service uses to dwellinghouses (27 March 2024)
Changes of use from commercial, business and service uses to dwellinghouses (27 March 2024)
Changes of use from commercial, business and service uses to dwellinghouses (27 March 2024)
Changes of use from commercial, business and service uses to dwellinghouses (27 March 2024)
Changes of use from commercial, business and service uses to dwellinghouses (27 March 2024)
Changes of use from commercial, business and service uses to dwellinghouses (27 March 2024)
Changes of use from commercial, business and service uses to dwellinghouses (27 March 2024)
Changes of use from commercial, business and service uses to dwellinghouses (27 March 2024)
Changes of use from commercial, business and service uses to dwellinghouses (27 March 2024)
Changes of use from commercial, business and service uses to dwellinghouses (27 March 2024)
Changes of use from commercial, business and service uses to dwellinghouses (27 March 2024)
Changes of use from commercial, business and service uses to dwellinghouses (27 March 2024)
Changes of use from commercial, business and service uses to dwellinghouses (27 March 2024)
Changes of use from commercial, business and service uses to dwellinghouses (27 March 2024)
Changes of use from commercial, business and service uses to dwellinghouses (27 March 2024)
Changes of use from commercial, business and service uses to dwellinghouses (27 March 2024)
Changes of use from commercial, business and service uses to dwellinghouses (27 March 2024)
Changes of use from commercial, business and service uses to dwellinghouses (27 March 2024)
Changes of use from commercial, business and service uses to dwellinghouses (27 March 2024)
Changes of use from commercial, business and service uses to dwellinghouses (27 March 2024)
Changes of use from commercial, business and service uses to dwellinghouses (27 March 2024)
Changes of use from commercial, business and service uses to dwellinghouses (27 March 2024)
Changes of use from commercial, business and service uses to dwellinghouses (27 March 2024)
Changes of use from commercial, business and service uses to dwellinghouses (27 March 2024)
Changes of use from commercial, business and service uses to dwellinghouses (27 March 2024)
Changes of use from commercial, business and service uses to dwellinghouses (27 March 2024)
Changes of use from commercial, business and service uses to dwellinghouses (27 March 2024)
Changes of use from commercial, business and service uses to dwellinghouses (27 March 2024)
Changes of use from commercial, business and service uses to dwellinghouses (27 March 2024)
Changes of use from commercial, business and service uses to dwellinghouses (27 March 2024)
Changes of use from commercial, business and service uses to dwellinghouses (27 March 2024)
Changes of use from commercial, business and service uses to dwellinghouses (27 March 2024)
Changes of use from commercial, business and service uses to dwellinghouses (27 March 2024)
Changes of use from commercial, business and service uses to dwellinghouses (27 March 2024)
Changes of use from commercial, business and service uses to dwellinghouses (27 March 2024)
Changes of use from commercial, business and service uses to dwellinghouses (27 March 2024)
Changes of use from commercial, business and service uses to dwellinghouses (27 March 2024)
Changes of use from commercial, business and service uses to dwellinghouses (27 March 2024)
Changes of use from commercial, business and service uses to dwellinghouses (27 March 2024)
Changes of use from commercial, business and service uses to dwellinghouses (27 March 2024)
Changes of use from commercial, business and service uses to dwellinghouses (27 March 2024)
Changes of use from commercial, business and service uses to dwellinghouses (27 March 2024)
Changes of use from commercial, business and service uses to dwellinghouses (27 March 2024)
Changes of use from commercial, business and service uses to dwellinghouses (27 March 2024)
Changes of use from commercial, business and service uses to dwellinghouses (27 March 2024)
Changes of use from commercial, business and service uses to dwellinghouses (27 March 2024)
Changes of use from commercial, business and service uses to dwellinghouses (27 March 2024)
Changes of use from commercial, business and service uses to dwellinghouses (27 March 2024)
Changes of use from commercial, business and service uses to dwellinghouses (27 March 2024)

Showing 60 of 150. The full list is on the council's website.

Conservation area and Article 4 data: planning.data.gov.uk. Contains public sector information licensed under the Open Government Licence v3.0. Always confirm boundaries and rules with the council before starting work. General information, not legal advice.

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