Postcode record · Hillingdon
HA4 9QQ.
HA4 9QQ has 27 known premises and 27 planning records — 17 approved of 24 decided (70.8%). 10 EPC records.
Postcode HA4 9QQ · boundary not held, centred on the postcodeApprovedRefusedOther27 on the map — every match
At a glance · this postcodeHillingdon profile →
27
Premises
known addresses (UPRNs)
27
Applications
24 decided
70.8%
Approval rate
17 approved · 7 refused
56 days
Median decision time
average 58 days · 27 dated decisions
10
EPC records
ratings C 2 · D 6 · E 2
27
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 9QQ has 27 known premises and 27 planning records — 17 approved of 24 decided (70.8%). 10 EPC records.
Premises (18 of 27 shown)
Name
Details
UPRN 768010002
UPRN 100021456518
UPRN 100021456520
UPRN 100021456522
UPRN 100021456524
UPRN 100021456526
UPRN 100021456528
UPRN 100021456530
UPRN 100021456532
UPRN 100021456534
UPRN 768010002
UPRN 100021456518
UPRN 100021456520
Show all 10 rows
UPRN 100021456522
UPRN 100021456524
UPRN 100021456526
UPRN 100021456528
UPRN 100021456530
UPRN 100021456532
UPRN 100021456534
Planning
What happened?
27 planning applications across the postcode; 17 approved of 24 decided (70.8%). Latest 27 shown.
Reference
Proposal · address
Type
Outcome
Date · distance
Erection of a front porch and a single storey rear extension.
37 CASTLETON ROAD RUISLIP · premises record
Officer Becky Smith
Planning Application
Approved
2024-11-14
Conversion of roof space to habitable use to include a rear dormer with juliette balcony, 3 front roof lights and conversion from hip to gable end with new gable end window (Application for a Certificate of Lawful Development for a Proposed Development)
19 CASTLETON ROAD RUISLIP · premises record
Officer Katherine Mills
Planning Application
Approved
2024-10-16
Erection of a single storey rear extension and a front porch.
37 CASTLETON ROAD RUISLIP · premises record
Officer Becky Smith
Planning Application
Refused
2024-08-29
Single storey rear extension
33 CASTLETON ROAD RUISLIP MIDDX HA4 9QQ · premises record
Officer Katherine Mills
Planning Application
Approved
2021-04-16
Single storey rear extension involving demolition of existing extension
47 CASTLETON ROAD RUISLIP HA4 9QQ · premises record
Officer Liz Arnold
Planning Application
Approved
2019-05-07
Application for a non-material amendment to planning permission Ref: 73145/APP/2018/1784 dated 23/07/2018 (Single storey side/rear extension) to allow for additional rooflights
11 CASTLETON ROAD RUISLIP HA4 9QQ · premises record
Officer Liz Arnold
Planning Application
Approved
2018-10-09
Porch to front (Application for a Certificate of Lawful Development for a Proposed Development)
11 CASTLETON ROAD RUISLIP HA4 9QQ · premises record
Officer Nicola Taplin
Planning Application
Refused
2018-06-21
Single storey side/rear extension
11 CASTLETON ROAD RUISLIP HA4 9QQ · premises record
Officer Liz Arnold
Planning Application
Approved
2018-05-14
Single storey side and part single storey, part two storey rear extension
13 CASTLETON ROAD RUISLIP MIDDX HA4 9QQ · premises record
Officer Liz Arnold
Planning Application
Approved
2018-05-14
Single storey rear extension including demolition of existing garage.
11 CASTLETON ROAD RUISLIP HA4 9QQ · premises record
Officer Nicola Taplin
Planning Application
Approved
2018-01-08
Erection of a front porch and a single storey rear extension.
37 CASTLETON ROAD RUISLIP · premises record
Officer Becky Smith
Approved
2024-11-14
More
Planning Application
Conversion of roof space to habitable use to include a rear dormer with juliette balcony, 3 front roof lights and conversion from hip to gable end with new gable end window (Application for a Certificate of Lawful Development for a Proposed Development)
19 CASTLETON ROAD RUISLIP · premises record
Officer Katherine Mills
Approved
2024-10-16
More
Planning Application
Erection of a single storey rear extension and a front porch.
37 CASTLETON ROAD RUISLIP · premises record
Officer Becky Smith
Refused
2024-08-29
More
Planning Application
Show all 10 rows
Single storey rear extension
33 CASTLETON ROAD RUISLIP MIDDX HA4 9QQ · premises record
Officer Katherine Mills
Approved
2021-04-16
More
Planning Application
Single storey rear extension involving demolition of existing extension
47 CASTLETON ROAD RUISLIP HA4 9QQ · premises record
Officer Liz Arnold
Approved
2019-05-07
More
Planning Application
Application for a non-material amendment to planning permission Ref: 73145/APP/2018/1784 dated 23/07/2018 (Single storey side/rear extension) to allow for additional rooflights
11 CASTLETON ROAD RUISLIP HA4 9QQ · premises record
Officer Liz Arnold
Approved
2018-10-09
More
Planning Application
Porch to front (Application for a Certificate of Lawful Development for a Proposed Development)
11 CASTLETON ROAD RUISLIP HA4 9QQ · premises record
Officer Nicola Taplin
Refused
2018-06-21
More
Planning Application
Single storey side/rear extension
11 CASTLETON ROAD RUISLIP HA4 9QQ · premises record
Officer Liz Arnold
Approved
2018-05-14
More
Planning Application
Single storey side and part single storey, part two storey rear extension
13 CASTLETON ROAD RUISLIP MIDDX HA4 9QQ · premises record
Officer Liz Arnold
Approved
2018-05-14
More
Planning Application
Single storey rear extension including demolition of existing garage.
11 CASTLETON ROAD RUISLIP HA4 9QQ · premises record
Officer Nicola Taplin
Approved
2018-01-08
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 27 premises each one covers.
Designation
Coverage
Article 4 Direction Area
Residential extensions · reference A8177 · covers 27 of 27 premises. Some normally permitted changes may require planning permission.
Article 4 Direction Area
Residential extensions · reference A8177 · covers 27 of 27 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).
Cleves Way0 mAragon Drive0 mCastleton Road0 mCranmer Close0 mBoleyn Drive2 mCardinal Road11 mR169 Public Footpath Cranmer Close To Seymour Gardens52 mR170 Public Footpath Roxbourne Park Miniature Railway To Borough Boundary60 m
People
Who is involved?
Named on the latest 27 applications in this postcode — the party who applied, not the owner or occupier.
Name
Details
Case officer on 6 applications
Case officer on 6 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 1 application
Case officer on 6 applications
Case officer on 6 applications
Case officer on 3 applications
Show all 10 rows
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 1 application
Development
What could it become?
Planning precedent27 applications and 27 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy10 EPC records; ratings C: 2, D: 6, E: 2.
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.