Postcode record · Westminster
W9 1AZ.
W9 1AZ has 66 known premises and 172 planning records — 104 approved of 126 decided (82.5%). 28 EPC records.
Postcode W9 1AZ · boundary not held, centred on the postcodeApprovedRefusedOther172 exact172 on the map — every match
At a glance · this postcodeWestminster profile →
66
Premises
known addresses (UPRNs)
172
Applications
126 decided
82.5%
Approval rate
104 approved · 22 refused
28
EPC records
ratings C 7 · D 18 · E 3
172
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 1AZ has 66 known premises and 172 planning records — 104 approved of 126 decided (82.5%). 28 EPC records.
Premises (18 of 66 shown)
Name
Details
UPRN 10033526633
UPRN 10033526634
UPRN 10033531782
UPRN 10033532549
UPRN 10033532550
UPRN 10033532551
UPRN 10033532552
UPRN 10033550991
UPRN 10033550992
UPRN 10033550993
UPRN 10033526633
UPRN 10033526634
UPRN 10033531782
Show all 10 rows
UPRN 10033532549
UPRN 10033532550
UPRN 10033532551
UPRN 10033532552
UPRN 10033550991
UPRN 10033550992
UPRN 10033550993
Planning
What happened?
172 planning applications across the postcode; 104 approved of 126 decided (82.5%). Latest 30 shown.
Reference
Proposal · address
Type
Outcome
Date · distance
Amalgamation of three residential units to provide one, one bedroom unit and one, three bedroom unit (Class C3); Demolition of existing conservatory and erection of glazed two storey extension to rear, use of the flat roof at third floor level as a terrace, associated plant; renewing, replacement and relocation of windows and associated works. (Linked to 25/08636/LBC)
28 Clarendon Gardens London W9 1AZ · premises record
Full Planning Permission Application
Pending
2025-11-26
Amalgamation of three residential units to provide one, one bedroom unit and one, three bedroom unit (Class C3); Demolition of existing conservatory and erection of glazed extension to rear, associated plant; renewing, replacement and relocation of windows and associated works. (Linked to 25/08635/FULL)
28 Clarendon Gardens London W9 1AZ · premises record
Listed Building Consent Application
Pending
2025-11-26
Demolition of a rear garden boundary wall and its like-for-like rebuilding on the same footprint, height and alignment, using matching materials and painted finish
18 Clarendon Gardens London W9 1AZ · premises record
Listed Building Consent Application
Approved
2025-11-26
Detailed drawings showing the revision to the window scheme including details on retaining and refurbishing sash boxes to all windows, omitting reglazing of two rear original windows and joinery profiles to reflect the original lamb's tongue bars, pursuant to Condition 3 of Listed Building Consent dated 16 April 2025 (RN: 24/03615/LBC).
26C Clarendon Gardens London W9 1AZ · premises record
Approval of Details (ADLBC)
Approved
2025-11-21
Detailed drawings showing the revision to the window scheme including details on retaining and refurbishing sash boxes to all windows, omitting reglazing of two rear original windows and joinery profiles to reflect the original lamb's tongue bars, pursuant to Condition 3 of Listed Building Consent dated 16 April 2025 (RN: 24/03615/LBC).
26C Clarendon Gardens London W9 1AZ · premises record
Approval of Details (ADLBC)
Refused
2025-09-10
Details of railings, balconies, gate showing traditional detail of hinges, details of new rear infill extension including external doors, and roof glazing showing details of materiality and key junctions, external staircase, ladders, reflected ceiling plans showing light fittings , details of existing and proposed floor build ups, glazing samples, photographs and specifications of the paving material and detailed condition surveys pursuant to Conditions 5 (A,B,C,G and I), 6, 9 and 10 of Listed Building Consent dated 12 June 2025 (RN25/00028/LBC)
24 Clarendon Gardens London W9 1AZ · premises record
Approval of Details (ADLBC)
Approved
2025-08-19
Detailed drawings including sections, and method statements where applicable; of the railings, balconies, gate showing traditional detail of hinges- each type showing location and giving key details with adjacent fabric, details of new rear infill extension including new external doors, and roof glazing showing details of materiality and key junctions with existing fabric, external staircase, ladders reflected ceiling plans showing light fittings etc and coordinated integrated services, indicating new or retained existing ceiling constructions, a method statement further to investigative works for removal of modern ceilings and reinstatement of historic ceilings if applicable, must be included, details of existing and proposed floor build ups further to investigative works, cross referred on plans, details of sample photos showing materiality and technical specifications of any new glazing for the windows and details of sample photographs and specifications of the paving material at rear garden, infill rear extension including glazing, frames, staircase, landing pursuant to condition 4 (A), (B), (C), (G), (I), 5 & 7 of planning permission dated 12th June 2025 (RN:25/00027/FULL)
24 Clarendon Gardens London W9 1AZ · premises record
Approval of Details (Full PP)
Approved
2025-08-19
Internal alterations at lower ground floor level of maisonette apartment, including removal of non-original stud partition forming a lobby, replacement of non-original double door with new single door, and installation of a new bathroom.
18 Clarendon Gardens London W9 1AZ · premises record
Listed Building Consent Application
Approved
2025-08-05
Details of internal doors and associated joinery; new and retained fire surrounds, hearths and fire places; skirting and cornices; and replacement French Doors pursuant to conditions 4 (d, f, and h), and 6 of planning permission dated planning permission dated 12 June 2025 (RN: 25/00027/FULL). (Linked with 25/04639/ADLBC)
24 Clarendon Gardens London W9 1AZ · premises record
Approval of Details (Full PP)
Approved
2025-07-07
Details of internal doors and associated joinery; new and retained fire surrounds, hearths and fire places; skirting and cornices; replacement French Doors; and specification and method statements of waterproofing and tanking pursuant to conditions 5 (d, f, and h), 7, and 8 of listed building consent dated 12 June 2025 (RN: 25/00028/LBC). (Linked with 25/04645/ADFULL)
24 Clarendon Gardens London W9 1AZ · premises record
Approval of Details (ADLBC)
Approved
2025-07-04
Amalgamation of three residential units to provide one, one bedroom unit and one, three bedroom unit (Class C3); Demolition of existing conservatory and erection of glazed two storey extension to rear, use of the flat roof at third floor level as a terrace, associated plant; renewing, replacement and relocation of windows and associated works. (Linked to 25/08636/LBC)
28 Clarendon Gardens London W9 1AZ · premises record
Pending
2025-11-26
More
Full Planning Permission Application
Amalgamation of three residential units to provide one, one bedroom unit and one, three bedroom unit (Class C3); Demolition of existing conservatory and erection of glazed extension to rear, associated plant; renewing, replacement and relocation of windows and associated works. (Linked to 25/08635/FULL)
28 Clarendon Gardens London W9 1AZ · premises record
Pending
2025-11-26
More
Listed Building Consent Application
Demolition of a rear garden boundary wall and its like-for-like rebuilding on the same footprint, height and alignment, using matching materials and painted finish
18 Clarendon Gardens London W9 1AZ · premises record
Approved
2025-11-26
More
Listed Building Consent Application
Show all 10 rows
Detailed drawings showing the revision to the window scheme including details on retaining and refurbishing sash boxes to all windows, omitting reglazing of two rear original windows and joinery profiles to reflect the original lamb's tongue bars, pursuant to Condition 3 of Listed Building Consent dated 16 April 2025 (RN: 24/03615/LBC).
26C Clarendon Gardens London W9 1AZ · premises record
Approved
2025-11-21
More
Approval of Details (ADLBC)
Detailed drawings showing the revision to the window scheme including details on retaining and refurbishing sash boxes to all windows, omitting reglazing of two rear original windows and joinery profiles to reflect the original lamb's tongue bars, pursuant to Condition 3 of Listed Building Consent dated 16 April 2025 (RN: 24/03615/LBC).
26C Clarendon Gardens London W9 1AZ · premises record
Refused
2025-09-10
More
Approval of Details (ADLBC)
Details of railings, balconies, gate showing traditional detail of hinges, details of new rear infill extension including external doors, and roof glazing showing details of materiality and key junctions, external staircase, ladders, reflected ceiling plans showing light fittings , details of existing and proposed floor build ups, glazing samples, photographs and specifications of the paving material and detailed condition surveys pursuant to Conditions 5 (A,B,C,G and I), 6, 9 and 10 of Listed Building Consent dated 12 June 2025 (RN25/00028/LBC)
24 Clarendon Gardens London W9 1AZ · premises record
Approved
2025-08-19
More
Approval of Details (ADLBC)
Detailed drawings including sections, and method statements where applicable; of the railings, balconies, gate showing traditional detail of hinges- each type showing location and giving key details with adjacent fabric, details of new rear infill extension including new external doors, and roof glazing showing details of materiality and key junctions with existing fabric, external staircase, ladders reflected ceiling plans showing light fittings etc and coordinated integrated services, indicating new or retained existing ceiling constructions, a method statement further to investigative works for removal of modern ceilings and reinstatement of historic ceilings if applicable, must be included, details of existing and proposed floor build ups further to investigative works, cross referred on plans, details of sample photos showing materiality and technical specifications of any new glazing for the windows and details of sample photographs and specifications of the paving material at rear garden, infill rear extension including glazing, frames, staircase, landing pursuant to condition 4 (A), (B), (C), (G), (I), 5 & 7 of planning permission dated 12th June 2025 (RN:25/00027/FULL)
24 Clarendon Gardens London W9 1AZ · premises record
Approved
2025-08-19
More
Approval of Details (Full PP)
Internal alterations at lower ground floor level of maisonette apartment, including removal of non-original stud partition forming a lobby, replacement of non-original double door with new single door, and installation of a new bathroom.
18 Clarendon Gardens London W9 1AZ · premises record
Approved
2025-08-05
More
Listed Building Consent Application
Details of internal doors and associated joinery; new and retained fire surrounds, hearths and fire places; skirting and cornices; and replacement French Doors pursuant to conditions 4 (d, f, and h), and 6 of planning permission dated planning permission dated 12 June 2025 (RN: 25/00027/FULL). (Linked with 25/04639/ADLBC)
24 Clarendon Gardens London W9 1AZ · premises record
Approved
2025-07-07
More
Approval of Details (Full PP)
Details of internal doors and associated joinery; new and retained fire surrounds, hearths and fire places; skirting and cornices; replacement French Doors; and specification and method statements of waterproofing and tanking pursuant to conditions 5 (d, f, and h), 7, and 8 of listed building consent dated 12 June 2025 (RN: 25/00028/LBC). (Linked with 25/04645/ADFULL)
24 Clarendon Gardens London W9 1AZ · premises record
Approved
2025-07-04
More
Approval of Details (ADLBC)
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 66 premises each one covers.
Designation
Coverage
Article 4 Direction Area
Article 4 Basement Development Permitted Rights Removed · reference 23/00006/REG_4 · covers 66 of 66 premises. Some normally permitted changes may require planning permission.
Conservation Area
Maida Vale · reference 08/01080/CONARA · covers 66 of 66 premises. Demolition, alterations, trees and design are subject to additional heritage controls.
Article 4 Direction Area
Article 4 Basement Development Permitted Rights Removed · reference 23/00006/REG_4 · covers 66 of 66 premises. Some normally permitted changes may require planning permission.
Conservation Area
Maida Vale · reference 08/01080/CONARA · covers 66 of 66 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 30 applications in this postcode — the party who applied, not the owner or occupier.
Name
Details
Applicant on 6 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 6 applications
Agent on 2 applications
Agent on 2 applications
Applicant on 6 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 6 applications
Agent on 2 applications
Agent on 2 applications
Development
What could it become?
Planning precedent172 applications and 172 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy28 EPC records; ratings C: 7, D: 18, 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.
6 intent signals recorded in this postcode
Portfolio seller · Price decline · Long hold · Ageing director
Subscribe to see the signals →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.