Postcode record · Westminster
W1J 5AX.
W1J 5AX has 18 known premises and 13 planning records — 9 approved of 10 decided (90%). 11 EPC records.
Postcode W1J 5AX · boundary not held, centred on the postcodeApprovedRefusedOther13 exact1 approximate14 on the map — every match
At a glance · this postcodeWestminster profile →
18
Premises
known addresses (UPRNs)
13
Applications
10 decided
90%
Approval rate
9 approved · 1 refused
11
EPC records
ratings C 6 · D 2 · E 3
14
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?
W1J 5AX has 18 known premises and 13 planning records — 9 approved of 10 decided (90%). 11 EPC records.
Premises
Name
Details
UPRN 10033613609
UPRN 10033636866
UPRN 100023473573
UPRN 100023473574
UPRN 100023473575
UPRN 100023473576
UPRN 100023473577
UPRN 100023473578
UPRN 100023473579
UPRN 100023473580
UPRN 10033613609
UPRN 10033636866
UPRN 100023473573
Show all 10 rows
UPRN 100023473574
UPRN 100023473575
UPRN 100023473576
UPRN 100023473577
UPRN 100023473578
UPRN 100023473579
UPRN 100023473580
Planning
What happened?
13 planning applications across the postcode; 9 approved of 10 decided (90%). Latest 13 shown.
Reference
Proposal · address
Type
Outcome
Date · distance
Replacement of existing windows with double glazed windows.
Flat I And Flat J 48 Berkeley Square London W1J 5AX · premises record
Full Planning Permission Application
Approved
2026-02-09
Installation of an awning within the courtyard at ground floor level.
48 Berkeley Square London W1J 5AX · premises record
Full Planning Permission Application
Approved
2020-09-03
Installation of an air conditioning unit within an existing plant enclosure in the courtyard at ground floor level.
Basement, Ground And Mezzanine Floor 48 Berkeley Square London W1J 5AX · premises record
Full Planning Permission Application
Approved
2020-09-03
Approval of details pursuant to Condition 6 of plaiing permission dated 13 November 2014 (RN: 14/07908), namely the submission of detailed drawings (scale 1:20 and 1:5) showing the provision of acoustic plant screening.
Flat A 48 Berkeley Square London W1J 5AX · premises record
Approval of Details (Full PP)
Approved
2015-02-02
Installation of air conditioning unit within the rear lightwell and installation of new windows at front first floor level (Retrospective).
Flat A 48 Berkeley Square London W1J 5AX · premises record
Full Planning Permission Application
Approved
2014-08-11
Installation of an air conditioning unit within the external stairwell.
Flat I And Flat J 48 Berkeley Square London W1J 5AX · premises record
Full Planning Permission Application
Approved
2012-10-01
Use of part basement, ground and mezzanine floor levels as an estate agent (Class A2).
48 Berkeley Square London W1J 5AX · premises record
Full Planning Permission Application
Approved
2012-02-06
Retention of a single external condensing unit in rear lightwell at fifth floor level (Flat G)
48 Berkeley Square London W1J 5AX · premises record
Full Planning Permission Application
Approved
2009-07-27
Display for a temporary period of six months of a non-illuminated 'to let' board attached to the railings in front of the building at street level and measuring 0.6 x 0.45m.
48 Berkeley Square London W1J 5AX · premises record
Advert Application-Regulat. 7 Area (AD7)
Approved
2006-05-22
Erection of conservatory to rear elevation
Flat L 48 Berkeley Square London W1J 5AX · premises record
Full Planning Permission Application
Withdrawn
2000-01-04
Replacement of existing windows with double glazed windows.
Flat I And Flat J 48 Berkeley Square London W1J 5AX · premises record
Approved
2026-02-09
More
Full Planning Permission Application
Installation of an awning within the courtyard at ground floor level.
48 Berkeley Square London W1J 5AX · premises record
Approved
2020-09-03
More
Full Planning Permission Application
Installation of an air conditioning unit within an existing plant enclosure in the courtyard at ground floor level.
Basement, Ground And Mezzanine Floor 48 Berkeley Square London W1J 5AX · premises record
Approved
2020-09-03
More
Full Planning Permission Application
Show all 10 rows
Approval of details pursuant to Condition 6 of plaiing permission dated 13 November 2014 (RN: 14/07908), namely the submission of detailed drawings (scale 1:20 and 1:5) showing the provision of acoustic plant screening.
Flat A 48 Berkeley Square London W1J 5AX · premises record
Approved
2015-02-02
More
Approval of Details (Full PP)
Installation of air conditioning unit within the rear lightwell and installation of new windows at front first floor level (Retrospective).
Flat A 48 Berkeley Square London W1J 5AX · premises record
Approved
2014-08-11
More
Full Planning Permission Application
Installation of an air conditioning unit within the external stairwell.
Flat I And Flat J 48 Berkeley Square London W1J 5AX · premises record
Approved
2012-10-01
More
Full Planning Permission Application
Use of part basement, ground and mezzanine floor levels as an estate agent (Class A2).
48 Berkeley Square London W1J 5AX · premises record
Approved
2012-02-06
More
Full Planning Permission Application
Retention of a single external condensing unit in rear lightwell at fifth floor level (Flat G)
48 Berkeley Square London W1J 5AX · premises record
Approved
2009-07-27
More
Full Planning Permission Application
Display for a temporary period of six months of a non-illuminated 'to let' board attached to the railings in front of the building at street level and measuring 0.6 x 0.45m.
48 Berkeley Square London W1J 5AX · premises record
Approved
2006-05-22
More
Advert Application-Regulat. 7 Area (AD7)
Erection of conservatory to rear elevation
Flat L 48 Berkeley Square London W1J 5AX · premises record
Withdrawn
2000-01-04
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 18 premises each one covers.
Designation
Coverage
Archaeological Priority Area
City of Westminster APA 2.5: Great Estates Summary and Definition The Great Estates APA covers an area bounded by Park Lane to the west, Green Park and St James’s Park to the south, Haymarket, Shaftesbury Avenue, Charing Cross Road and t · reference 76098 · covers 18 of 18 premises. Groundworks may require archaeological assessment or investigation.
Article 4 Direction Area
Article 4 Basement Development Permitted Rights Removed · reference 23/00006/REG_4 · covers 18 of 18 premises. Some normally permitted changes may require planning permission.
Central Activities Zone
Named designation not supplied · reference CAZ00000005 · covers 18 of 18 premises. London Plan policies for the Central Activities Zone may apply.
Conservation Area
Mayfair · reference CONARA/1270 · covers 18 of 18 premises. Demolition, alterations, trees and design are subject to additional heritage controls.
Archaeological Priority Area
City of Westminster APA 2.5: Great Estates Summary and Definition The Great Estates APA covers an area bounded by Park Lane to the west, Green Park and St James’s Park to the south, Haymarket, Shaftesbury Avenue, Charing Cross Road and t · reference 76098 · covers 18 of 18 premises. Groundworks may require archaeological assessment or investigation.
Article 4 Direction Area
Article 4 Basement Development Permitted Rights Removed · reference 23/00006/REG_4 · covers 18 of 18 premises. Some normally permitted changes may require planning permission.
Central Activities Zone
Named designation not supplied · reference CAZ00000005 · covers 18 of 18 premises. London Plan policies for the Central Activities Zone may apply.
Show all 4 rows
Conservation Area
Mayfair · reference CONARA/1270 · covers 18 of 18 premises. Demolition, alterations, trees and design are subject to additional heritage controls.
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 13 applications in this postcode — the party who applied, not the owner or occupier.
Name
Details
Applicant on 2 applications
Applicant on 2 applications
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 2 applications
Applicant on 2 applications
Applicant on 1 application
Show all 10 rows
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Development
What could it become?
Planning precedent13 applications and 14 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy11 EPC records; ratings C: 6, D: 2, 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
The Developer PlanOwnership, 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.