Postcode record · Hillingdon
HA4 6AF.
HA4 6AF has 21 known premises and 44 planning records — 37 approved of 43 decided (86%). 14 EPC records.
Postcode HA4 6AF · boundary not held, centred on the postcodeApprovedRefusedOther44 on the map — every match
At a glance · this postcodeHillingdon profile →
21
Premises
known addresses (UPRNs)
44
Applications
43 decided
86%
Approval rate
37 approved · 6 refused
56 days
Median decision time
average 65 days · 44 dated decisions
14
EPC records
ratings C 4 · D 6 · E 4
44
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?
HA4 6AF has 21 known premises and 44 planning records — 37 approved of 43 decided (86%). 14 EPC records.
Premises (18 of 21 shown)
Name
Details
UPRN 100021469179
UPRN 100021469180
UPRN 100021469181
UPRN 100021469182
UPRN 100021469183
UPRN 100021469184
UPRN 100021469185
UPRN 100021469186
UPRN 100021469187
UPRN 100021469188
UPRN 100021469179
UPRN 100021469180
UPRN 100021469181
Show all 10 rows
UPRN 100021469182
UPRN 100021469183
UPRN 100021469184
UPRN 100021469185
UPRN 100021469186
UPRN 100021469187
UPRN 100021469188
Planning
What happened?
44 planning applications across the postcode; 37 approved of 43 decided (86%). Latest 30 shown.
Reference
Proposal · address
Type
Outcome
Date · distance
Non-material amendment to planning permission ref. 26362/APP/2025/692, dated 14-05-2025 (Demolition of the existing rear extension and erection of a single-storey rear and side extension with four rooflights. Conversion of roof space to habitable use, including a hip to gable conversion to both side
14 SUNNYDENE AVENUE RUISLIP · premises record
Officer Sharon Singh
Planning Application
Approved
2025-08-06
Demolition of the existing rear extension and erection of a single-storey rear and side extension with four rooflights. Conversion of roof space to habitable use, including a hip to gable conversion to both sides, removal of chimney, construction of a rear dormer and installation of three rooflights
14 SUNNYDENE AVENUE RUISLIP · premises record
Officer Mitchell Heaven
Planning Application
Approved
2025-03-12
Erection of a single storey extension to the rear following the demolition of the existing conservatory. Conversion of integral garage to habitable accommodation with amendments to fenestrations and rendering of external walls.
5 SUNNYDENE AVENUE RUISLIP HA4 6AF · premises record
Officer Becky Smith
Planning Application
Approved
2024-11-21
Erection of a single storey rear extension, raising of ridge height, conversion of garage to habitable use and roof to be raised, application of render, and existing conservatory to be demolished.
5 SUNNYDENE AVENUE RUISLIP HA4 6AF · premises record
Officer Becky Smith
Planning Application
Approved
2024-08-05
Conversion of roof space to habitable use to include a rear dormer with Juliette balcony, 2 front roof lights and conversion of roof from hip to gable end (Application for a Certificate of Lawful Development for a Proposed Development)
5 SUNNYDENE AVENUE RUISLIP HA4 6AF · premises record
Officer Becky Smith
Planning Application
Approved
2024-08-05
Erection of single storey extension to rear (Application for a Certificate of Lawful Development for a Proposed Development)
18 SUNNYDENE AVENUE RUISLIP · premises record
Officer Katherine Mills
Planning Application
Approved
2023-03-21
Erection of a single storey rear extension (incorporating extension approved under application ref. 67395/APP/2021/4415) and loft conversion (identical to that approved under application ref. 67395/APP/2021/2999).
15 SUNNYDENE AVENUE RUISLIP · premises record
Officer Christos Chrysanthou
Planning Application
Approved
2022-01-26
Conversion of a bungalow to a two storey dwelling, involving the conversion of roof space to habitable use and the erection of 2 front and 2 rear dormers including fenestration changes.
10 SUNNYDENE AVENUE RUISLIP · premises record
Officer Nesha Burnham
Planning Application
Approved
2021-12-14
Erection of a single storey rear extension, which would extend beyond the rear wall of the original house by 4 metres, for which the maximum height would be 3 metres, and for which the height of the eaves would be 2.93 metres
15 SUNNYDENE AVENUE RUISLIP · premises record
Officer Rhian Thomas
Planning Application
Approved
2021-12-02
Conversion of roof space to habitable use to include a rear dormer, 2 front roof lights and 3 rear roof lights (Application for a Certificate of Lawful Development for a Proposed Development)
15 SUNNYDENE AVENUE RUISLIP · premises record
Officer Zara Raza
Planning Application
Approved
2021-08-03
Non-material amendment to planning permission ref. 26362/APP/2025/692, dated 14-05-2025 (Demolition of the existing rear extension and erection of a single-storey rear and side extension with four rooflights. Conversion of roof space to habitable use, including a hip to gable conversion to both side
14 SUNNYDENE AVENUE RUISLIP · premises record
Officer Sharon Singh
Approved
2025-08-06
More
Planning Application
Demolition of the existing rear extension and erection of a single-storey rear and side extension with four rooflights. Conversion of roof space to habitable use, including a hip to gable conversion to both sides, removal of chimney, construction of a rear dormer and installation of three rooflights
14 SUNNYDENE AVENUE RUISLIP · premises record
Officer Mitchell Heaven
Approved
2025-03-12
More
Planning Application
Erection of a single storey extension to the rear following the demolition of the existing conservatory. Conversion of integral garage to habitable accommodation with amendments to fenestrations and rendering of external walls.
5 SUNNYDENE AVENUE RUISLIP HA4 6AF · premises record
Officer Becky Smith
Approved
2024-11-21
More
Planning Application
Show all 10 rows
Erection of a single storey rear extension, raising of ridge height, conversion of garage to habitable use and roof to be raised, application of render, and existing conservatory to be demolished.
5 SUNNYDENE AVENUE RUISLIP HA4 6AF · premises record
Officer Becky Smith
Approved
2024-08-05
More
Planning Application
Conversion of roof space to habitable use to include a rear dormer with Juliette balcony, 2 front roof lights and conversion of roof from hip to gable end (Application for a Certificate of Lawful Development for a Proposed Development)
5 SUNNYDENE AVENUE RUISLIP HA4 6AF · premises record
Officer Becky Smith
Approved
2024-08-05
More
Planning Application
Erection of single storey extension to rear (Application for a Certificate of Lawful Development for a Proposed Development)
18 SUNNYDENE AVENUE RUISLIP · premises record
Officer Katherine Mills
Approved
2023-03-21
More
Planning Application
Erection of a single storey rear extension (incorporating extension approved under application ref. 67395/APP/2021/4415) and loft conversion (identical to that approved under application ref. 67395/APP/2021/2999).
15 SUNNYDENE AVENUE RUISLIP · premises record
Officer Christos Chrysanthou
Approved
2022-01-26
More
Planning Application
Conversion of a bungalow to a two storey dwelling, involving the conversion of roof space to habitable use and the erection of 2 front and 2 rear dormers including fenestration changes.
10 SUNNYDENE AVENUE RUISLIP · premises record
Officer Nesha Burnham
Approved
2021-12-14
More
Planning Application
Erection of a single storey rear extension, which would extend beyond the rear wall of the original house by 4 metres, for which the maximum height would be 3 metres, and for which the height of the eaves would be 2.93 metres
15 SUNNYDENE AVENUE RUISLIP · premises record
Officer Rhian Thomas
Approved
2021-12-02
More
Planning Application
Conversion of roof space to habitable use to include a rear dormer, 2 front roof lights and 3 rear roof lights (Application for a Certificate of Lawful Development for a Proposed Development)
15 SUNNYDENE AVENUE RUISLIP · premises record
Officer Zara Raza
Approved
2021-08-03
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 21 premises each one covers.
Designation
Coverage
Article 4 Direction Area
Residential extensions · reference A8177 · covers 21 of 21 premises. Some normally permitted changes may require planning permission.
Article 4 Direction Area
Residential extensions · reference A8177 · covers 21 of 21 premises. Some normally permitted changes may require planning permission.
Nearby postcodes and streets
Walk to the next area — linked where the Atlas has a record for it (pilot borough only for now).
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 4 applications
Case officer on 3 applications
Case officer on 3 applications
Case officer on 3 applications
Case officer on 2 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 4 applications
Case officer on 3 applications
Case officer on 3 applications
Show all 10 rows
Case officer on 3 applications
Case officer on 2 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
Development
What could it become?
Planning precedent44 applications and 44 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy14 EPC records; ratings C: 4, D: 6, E: 4.
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 ProOwnership, finance and market signals recorded at addresses in this postcode — each with date and source. Signals are evidence of change, not a prediction.
Boundary: OS Postcode Unit areas (Ordnance Survey), 2026-08-14. Planning records: canonical stage2. EPC: EPC register. Premises: OS AddressBase / UPRN.