Postcode record · Westminster
W9 3HH.
W9 3HH has 86 known premises and 44 planning records — 22 approved of 35 decided (62.9%). 34 EPC records.
Postcode W9 3HH · boundary not held, centred on the postcodeApprovedRefusedOther44 exact1 approximate45 on the map — every match
At a glance · this postcodeWestminster profile →
86
Premises
known addresses (UPRNs)
44
Applications
35 decided
62.9%
Approval rate
22 approved · 13 refused
34
EPC records
ratings C 16 · D 15 · E 3
45
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?
W9 3HH has 86 known premises and 44 planning records — 22 approved of 35 decided (62.9%). 34 EPC records.
Premises (18 of 86 shown)
Name
Details
UPRN 10033526123
UPRN 10033549383
UPRN 10033560217
UPRN 10033560218
UPRN 10033560219
UPRN 10033560779
UPRN 10033563083
UPRN 10033563085
UPRN 10033563086
UPRN 10033563087
UPRN 10033526123
UPRN 10033549383
UPRN 10033560217
Show all 10 rows
UPRN 10033560218
UPRN 10033560219
UPRN 10033560779
UPRN 10033563083
UPRN 10033563085
UPRN 10033563086
UPRN 10033563087
Planning
What happened?
44 planning applications across the postcode; 22 approved of 35 decided (62.9%). Latest 30 shown.
Reference
Proposal · address
Type
Outcome
Date · distance
Erection of rear dormer with access door, creation of rear terrace and associated railings.
Second Floor Flat 25 Croxley Road London W9 3HH · premises record
Full
Approved
2025-10-01
Installation of two rooflights to front roofslope, a dormer and access door to the rear roofslope and the creation of a roof terrace.
Second Floor Flat 11 Croxley Road London W9 3HH · premises record
Applicant Mr George Arayes · Officer Kimia Khatmian
Full Planning Permission Application
Approved
2025-07-21
Creation of roof terrace to rear at second floor level, with associated railings; formation of access door; and associated boundary screening. Replacement of windows (Part retrospective).
Second Floor Flat 13 Croxley Road London W9 3HH · premises record
Full Planning Permission Application
Approved
2024-12-24
Loft conversion with rear dormer, replacement windows and new rooflights
Second Floor Flat 13 Croxley Road London W9 3HH · premises record
Full Planning Permission Application
Approved
2024-07-16
Retention of railings around rear flat roof and the continued use of the flat roof as a roof terrace.
7 Croxley Road London W9 3HH · premises record
Applicant Mr Michael Dickinson · Officer Frederica Cooney
Full Planning Permission Application
Approved
2020-03-04
Detailed elevations and sections of the dormer, windows and doors and terrace railings (condition 3); Detailed elevations of the terrace screen (condition 4); Details of waste and recycling storage (condition 5); Details of secure cycle storage (condition 6),pursuant to planning permission dated 25 September 2018 (RN: 18/06184/FULL).
35 Croxley Road London W9 3HH · premises record
Approval of Details (Full PP)
Approved
2019-06-10
Replacement of the existing windows with aluminium double glazed sash units to the rear elevation and timber double glazed sash to the front.
5 Croxley Road London W9 3HH · premises record
Full Planning Permission Application
Approved
2019-05-30
Replacement of front elevation windows with double glazed uPVC sash windows and replacement of the front door.
5 Croxley Road London W9 3HH · premises record
Full Planning Permission Application
Refused
2019-02-18
Use as three self contained flats, erection of single storey rear extension at ground floor level with terrace above at first floor level, installation of dormer window to rear roof slope, alterations to windows and doors, and erection of bin store in front garden.
35 Croxley Road London W9 3HH · premises record
Full Planning Permission Application
Approved
2018-07-20
Retention of railings to the rear flat roof area at second floor level.
Second Floor 9 Croxley Road London W9 3HH · premises record
Full Planning Permission Application
Refused
2018-03-25
Erection of rear dormer with access door, creation of rear terrace and associated railings.
Second Floor Flat 25 Croxley Road London W9 3HH · premises record
Approved
2025-10-01
More
Full
Installation of two rooflights to front roofslope, a dormer and access door to the rear roofslope and the creation of a roof terrace.
Second Floor Flat 11 Croxley Road London W9 3HH · premises record
Applicant Mr George Arayes · Officer Kimia Khatmian
Approved
2025-07-21
More
Full Planning Permission Application
Creation of roof terrace to rear at second floor level, with associated railings; formation of access door; and associated boundary screening. Replacement of windows (Part retrospective).
Second Floor Flat 13 Croxley Road London W9 3HH · premises record
Approved
2024-12-24
More
Full Planning Permission Application
Show all 10 rows
Loft conversion with rear dormer, replacement windows and new rooflights
Second Floor Flat 13 Croxley Road London W9 3HH · premises record
Approved
2024-07-16
More
Full Planning Permission Application
Retention of railings around rear flat roof and the continued use of the flat roof as a roof terrace.
7 Croxley Road London W9 3HH · premises record
Applicant Mr Michael Dickinson · Officer Frederica Cooney
Approved
2020-03-04
More
Full Planning Permission Application
Detailed elevations and sections of the dormer, windows and doors and terrace railings (condition 3); Detailed elevations of the terrace screen (condition 4); Details of waste and recycling storage (condition 5); Details of secure cycle storage (condition 6),pursuant to planning permission dated 25 September 2018 (RN: 18/06184/FULL).
35 Croxley Road London W9 3HH · premises record
Approved
2019-06-10
More
Approval of Details (Full PP)
Replacement of the existing windows with aluminium double glazed sash units to the rear elevation and timber double glazed sash to the front.
5 Croxley Road London W9 3HH · premises record
Approved
2019-05-30
More
Full Planning Permission Application
Replacement of front elevation windows with double glazed uPVC sash windows and replacement of the front door.
5 Croxley Road London W9 3HH · premises record
Refused
2019-02-18
More
Full Planning Permission Application
Use as three self contained flats, erection of single storey rear extension at ground floor level with terrace above at first floor level, installation of dormer window to rear roof slope, alterations to windows and doors, and erection of bin store in front garden.
35 Croxley Road London W9 3HH · premises record
Approved
2018-07-20
More
Full Planning Permission Application
Retention of railings to the rear flat roof area at second floor level.
Second Floor 9 Croxley Road London W9 3HH · premises record
Refused
2018-03-25
More
Full Planning Permission Application
Building control
Building-control records are not yet collected for Westminster — 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 86 premises each one covers.
Designation
Coverage
Article 4 Direction Area
Article 4 Basement Development Permitted Rights Removed · reference 23/00006/REG_4 · covers 86 of 86 premises. Some normally permitted changes may require planning permission.
Article 4 Direction Area
Article 4 Basement Development Permitted Rights Removed · reference 23/00006/REG_4 · covers 86 of 86 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
Applicant on 5 applications
Applicant on 2 applications
Applicant on 2 applications
Applicant on 2 applications
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Agent on 3 applications
Agent on 2 applications
Agent on 2 applications
Applicant on 5 applications
Applicant on 2 applications
Applicant on 2 applications
Show all 10 rows
Applicant on 2 applications
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Agent on 3 applications
Agent on 2 applications
Agent on 2 applications
Development
What could it become?
Planning precedent44 applications and 45 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy34 EPC records; ratings C: 16, D: 15, E: 3.
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.
Thinking about a project here?
Boundary: OS Postcode Unit areas (Ordnance Survey), 2026-08-14. Planning records: canonical stage2. EPC: EPC register. Premises: OS AddressBase / UPRN.