Planning Atlas
AtlasPostcodeUB83AR
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Session
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Planning AtlasHillingdonColham & Cowley wardUB8 3AR
Postcode record · Hillingdon

UB8 3AR.

UB8 3AR has 57 known premises and 80 planning records — 56 approved of 75 decided (74.7%). 38 EPC records.

Postcode UB8 3AR · boundary not held, centred on the postcodeApprovedRefusedOther80 on the map — every match
At a glance · this postcodeHillingdon profile →
57
Premises
known addresses (UPRNs)
80
Applications
75 decided
74.7%
Approval rate
56 approved · 19 refused
58 days
Median decision time
average 73 days · 79 dated decisions
38
EPC records
ratings B 2 · C 13 · D 18 · E 4 · F 1
80
Mapped applications
inside the postcode shape
Postcode unit boundary from Ordnance Survey; premises and applications inside it. Aggregates describe the area, not any single premises.
Property

What is it?

UB8 3AR has 57 known premises and 80 planning records — 56 approved of 75 decided (74.7%). 38 EPC records.

Premises (18 of 57 shown)

Name
Details
UPRN 10095324659
UPRN 100021475353
Show all 10 rows
UPRN 100021475354
UPRN 100021475356
UPRN 100021475358
UPRN 100021475359
UPRN 100021475360
Planning

What happened?

80 planning applications across the postcode; 56 approved of 75 decided (74.7%). Latest 30 shown.

Reference
Proposal · address
Type
Outcome
Date · distance
Erection of replacement conservatory.
6 BOURN AVENUE UXBRIDGE · premises record
Planning Application
Other
2026-05-21
Erection of a single storey rear extension, a front porch, installation of 2no.bay windows and 3no. high level windows to front elevation, alterations to side facing fenestration arrangement, installation of 1no. rear facing window and a rendered finish.
46 BOURN AVENUE HILLINGDON · premises record
Planning Application
Approved
2026-03-03
Conversion of roof space to habitable use to include side dormer, 3 x roof lights, and gable end window to rear (Application for a Certificate of Lawful Development for a Proposed Development)
45 BOURN AVENUE HILLINGDON · premises record
Planning Application
Approved
2025-12-22
Erection of a single storey extension to the rear, conversion, and extension of roof space to habitable use to include, raising roof ridge, side rooflights and 5x dormers to the side (amended description)
34 BOURN AVENUE HILLINGDON · premises record
Officer Rhian Thomas
Planning Application
Approved
2025-05-30
Erection of a single storey rear extension with fenestration changes and removal of chimney
21 BOURN AVENUE HILLINGDON UB8 3AR · premises record
Planning Application
Approved
2025-03-31
Conversion of roof space to habitable use to include two side dormers and conversion of roof from hip to gable end.
21 BOURN AVENUE HILLINGDON UB8 3AR · premises record
Planning Application
Approved
2025-03-31
Conversion of roof space to habitable use including two side dormers and conversion from hip to gable end to the rear. Erection of an outbuilding to the rear. (Application for a Certificate of Lawful Development for a Proposed Development).
42 BOURN AVENUE HILLINGDON · premises record
Planning Application
Approved
2025-01-21
Erection of new single storey rear extension following demolition of the existing conservatory.
42 BOURN AVENUE HILLINGDON · premises record
Planning Application
Approved
2025-01-21
Demolition of existing outbuilding and construction of new outbuilding
38 BOURN AVENUE HILLINGDON MIDDLESEX · premises record
Officer Rhian Thomas
Planning Application
Approved
2024-03-20
Erection of a single storey extension to the rear of dwelling following demolition of existing conservatory. Erection of outbuilding to the rear garden.
48 BOURN AVENUE HILLINGDON · premises record
Planning Application
Approved
2023-03-14
Erection of replacement conservatory.
6 BOURN AVENUE UXBRIDGE · premises record
Other
2026-05-21
More
Planning Application
Erection of a single storey rear extension, a front porch, installation of 2no.bay windows and 3no. high level windows to front elevation, alterations to side facing fenestration arrangement, installation of 1no. rear facing window and a rendered finish.
46 BOURN AVENUE HILLINGDON · premises record
Approved
2026-03-03
More
Planning Application
Conversion of roof space to habitable use to include side dormer, 3 x roof lights, and gable end window to rear (Application for a Certificate of Lawful Development for a Proposed Development)
45 BOURN AVENUE HILLINGDON · premises record
Approved
2025-12-22
More
Planning Application
Show all 10 rows
Erection of a single storey extension to the rear, conversion, and extension of roof space to habitable use to include, raising roof ridge, side rooflights and 5x dormers to the side (amended description)
34 BOURN AVENUE HILLINGDON · premises record
Officer Rhian Thomas
Approved
2025-05-30
More
Planning Application
Erection of a single storey rear extension with fenestration changes and removal of chimney
21 BOURN AVENUE HILLINGDON UB8 3AR · premises record
Approved
2025-03-31
More
Planning Application
Conversion of roof space to habitable use to include two side dormers and conversion of roof from hip to gable end.
21 BOURN AVENUE HILLINGDON UB8 3AR · premises record
Approved
2025-03-31
More
Planning Application
Conversion of roof space to habitable use including two side dormers and conversion from hip to gable end to the rear. Erection of an outbuilding to the rear. (Application for a Certificate of Lawful Development for a Proposed Development).
42 BOURN AVENUE HILLINGDON · premises record
Approved
2025-01-21
More
Planning Application
Erection of new single storey rear extension following demolition of the existing conservatory.
42 BOURN AVENUE HILLINGDON · premises record
Approved
2025-01-21
More
Planning Application
Demolition of existing outbuilding and construction of new outbuilding
38 BOURN AVENUE HILLINGDON MIDDLESEX · premises record
Officer Rhian Thomas
Approved
2024-03-20
More
Planning Application
Erection of a single storey extension to the rear of dwelling following demolition of existing conservatory. Erection of outbuilding to the rear garden.
48 BOURN AVENUE HILLINGDON · premises record
Approved
2023-03-14
More
Planning Application

Building control

Building-control records are not yet collected for Hillingdon — the register is being gathered borough by borough (held so far: Lambeth, Brent, Ealing, Westminster, City and others).

Place

What affects it?

Every mapped designation touching a premises in this postcode, with how many of its 57 premises each one covers.

Designation
Coverage
Article 4 Direction Area
Houses of Multiple Occupation (HMOs) · reference HMO2796 · covers 57 of 57 premises. Some normally permitted changes may require planning permission.
Article 4 Direction Area
Residential extensions · reference A8177 · covers 57 of 57 premises. Some normally permitted changes may require planning permission.
Article 4 Direction Area
Houses of Multiple Occupation (HMOs) · reference HMO2796 · covers 57 of 57 premises. Some normally permitted changes may require planning permission.
Article 4 Direction Area
Residential extensions · reference A8177 · covers 57 of 57 premises. Some normally permitted changes may require planning permission.
People

Who is involved?

Named on the latest 30 applications in this postcode — the party who applied, not the owner or occupier.

Name
Details
Case officer on 7 applications
Case officer on 4 applications
Case officer on 4 applications
Case officer on 3 applications
Case officer on 2 applications
Case officer on 1 application
Case officer on 1 application
Case officer on 1 application
Case officer on 1 application
Case officer on 1 application
Case officer on 7 applications
Case officer on 4 applications
Case officer on 4 applications
Show all 10 rows
Case officer on 3 applications
Case officer on 2 applications
Case officer on 1 application
Case officer on 1 application
Case officer on 1 application
Case officer on 1 application
Case officer on 1 application
Development

What could it become?

Planning precedent80 applications and 80 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy38 EPC records; ratings B: 2, C: 13, D: 18, E: 4, F: 1.
What is not assertedNo capacity, value or ownership claim is made at area level; those belong to individual premises records and their evidence.

Intent signals

Planning Atlas Pro

Ownership, finance and market signals recorded at addresses in this postcode — each with date and source. Signals are evidence of change, not a prediction.

6 intent signals recorded in this postcode
EPC F/G · Long hold · Ageing director
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Boundary: OS Postcode Unit areas (Ordnance Survey), 2026-08-14. Planning records: canonical stage2. EPC: EPC register. Premises: OS AddressBase / UPRN.
UB8 3AR, Hillingdon: planning and property history | Planning Atlas