Postcode record · Westminster
W1K 4QL.
W1K 4QL has 1 known premises and 14 planning records — 12 approved of 12 decided (100%).
Postcode W1K 4QL · boundary not held, centred on the postcodeApprovedRefusedOther16 exact16 on the map — every match
At a glance · this postcodeWestminster profile →
1
Premises
known addresses (UPRNs)
14
Applications
12 decided
100%
Approval rate
12 approved · 0 refused
0
EPC records
none recorded
16
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?
W1K 4QL has 1 known premises and 14 planning records — 12 approved of 12 decided (100%).
Premises
Name
Details
UPRN 100023474138
UPRN 100023474138
Planning
What happened?
14 planning applications across the postcode; 12 approved of 12 decided (100%). Latest 14 shown.
Reference
Proposal · address
Type
Outcome
Date · distance
Approval of details pursuant to Condition 5 of planning permission dated 3 March 2009 (RN: 09/00214), namely the submission of detailed drawings of visual screening for the air conditioning equipment.
23 Grosvenor Street London W1K 4QL · premises record
Approval of Details (Full PP)
Approved
2014-02-10
Retention of alterations including; installation of five new double glazed timber sash windows on the rear elevation; installation of two satellite dishes to the rear at roof level; replacement of garage door on the Brook's Mews elevation; installation of video entry to front and rear entrances; and installation of one air conditioning unit in the ground floor light-well.
23 Grosvenor Street London W1K 4QL · premises record
Applicant Not disclosed · Agent Sonnemann Toon Architects
Full Planning Permission Application
Approved
2012-04-04
Detailed drawings at 1:10 with full size sections through glazing bars of the new windows pursuant to Condition 3 of planning permission dated 23 March 2012 (RN: 12/00279).
23 Grosvenor Street London W1K 4QL · premises record
Approval of Details (Full PP)
Approved
2012-03-21
Replacement of existing windows on the front elevation with new multi-pane timber sliding sash windows.
23 Grosvenor Street London W1K 4QL · premises record
Conservation Area Consent Appl (CAC)
Not required
2012-01-13
Replacement of existing windows on the front elevation with new multi-pane timber sliding sash windows.
23 Grosvenor Street London W1K 4QL · premises record
Full Planning Permission Application
Approved
2012-01-13
Roofing over existing lightwell at rear ground floor level to provide additional office (Class B1) floorspace. Installation of four air conditioning units at ground floor and retention of two units fifth floor level.
23 Grosvenor Street London W1K 4QL · premises record
Full Planning Permission Application
Approved
2009-01-07
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 0.6m x 0.45m.
23 Grosvenor Street London W1K 4QL · premises record
Advert Application-Regulat. 7 Area (AD7)
Approved
2008-05-29
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.
23 Grosvenor Street London W1K 4QL · premises record
Advert Application-Regulat. 7 Area (AD7)
Approved
2006-11-13
Display for a temporary period of six months of a non-illuminated 'to let' board fixed to railings in front of the building at ground floor level and measuring 0.9m x 0.6m.
23 Grosvenor Street London W1K 4QL · premises record
Advert Application-Regulat. 7 Area (AD7)
Approved
2005-09-06
Display for a temporary period of six months of a non-illuminated 'to let' board fixed to railings in front of the building at ground floor level and measuring 0.9m x 0.6m.
23 Grosvenor Street London W1K 4QL · premises record
Advert Application-Regulat. 7 Area (AD7)
Approved
2004-06-22
Approval of details pursuant to Condition 5 of planning permission dated 3 March 2009 (RN: 09/00214), namely the submission of detailed drawings of visual screening for the air conditioning equipment.
23 Grosvenor Street London W1K 4QL · premises record
Approved
2014-02-10
More
Approval of Details (Full PP)
Retention of alterations including; installation of five new double glazed timber sash windows on the rear elevation; installation of two satellite dishes to the rear at roof level; replacement of garage door on the Brook's Mews elevation; installation of video entry to front and rear entrances; and installation of one air conditioning unit in the ground floor light-well.
23 Grosvenor Street London W1K 4QL · premises record
Applicant Not disclosed · Agent Sonnemann Toon Architects
Approved
2012-04-04
More
Full Planning Permission Application
Detailed drawings at 1:10 with full size sections through glazing bars of the new windows pursuant to Condition 3 of planning permission dated 23 March 2012 (RN: 12/00279).
23 Grosvenor Street London W1K 4QL · premises record
Approved
2012-03-21
More
Approval of Details (Full PP)
Show all 10 rows
Replacement of existing windows on the front elevation with new multi-pane timber sliding sash windows.
23 Grosvenor Street London W1K 4QL · premises record
Not required
2012-01-13
More
Conservation Area Consent Appl (CAC)
Replacement of existing windows on the front elevation with new multi-pane timber sliding sash windows.
23 Grosvenor Street London W1K 4QL · premises record
Approved
2012-01-13
More
Full Planning Permission Application
Roofing over existing lightwell at rear ground floor level to provide additional office (Class B1) floorspace. Installation of four air conditioning units at ground floor and retention of two units fifth floor level.
23 Grosvenor Street London W1K 4QL · premises record
Approved
2009-01-07
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 0.6m x 0.45m.
23 Grosvenor Street London W1K 4QL · premises record
Approved
2008-05-29
More
Advert Application-Regulat. 7 Area (AD7)
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.
23 Grosvenor Street London W1K 4QL · premises record
Approved
2006-11-13
More
Advert Application-Regulat. 7 Area (AD7)
Display for a temporary period of six months of a non-illuminated 'to let' board fixed to railings in front of the building at ground floor level and measuring 0.9m x 0.6m.
23 Grosvenor Street London W1K 4QL · premises record
Approved
2005-09-06
More
Advert Application-Regulat. 7 Area (AD7)
Display for a temporary period of six months of a non-illuminated 'to let' board fixed to railings in front of the building at ground floor level and measuring 0.9m x 0.6m.
23 Grosvenor Street London W1K 4QL · premises record
Approved
2004-06-22
More
Advert Application-Regulat. 7 Area (AD7)
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 1 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 1 of 1 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 1 of 1 premises. Some normally permitted changes may require planning permission.
Article 4 Direction Area
Article 4 Direction Class E To C3 In Central Activities Zone · reference 23/00004/REG_4 · covers 1 of 1 premises. Some normally permitted changes may require planning permission.
Central Activities Zone
Named designation not supplied · reference CAZ00000005 · covers 1 of 1 premises. London Plan policies for the Central Activities Zone may apply.
Conservation Area
Mayfair · reference CONARA/1270 · covers 1 of 1 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 1 of 1 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 1 of 1 premises. Some normally permitted changes may require planning permission.
Article 4 Direction Area
Article 4 Direction Class E To C3 In Central Activities Zone · reference 23/00004/REG_4 · covers 1 of 1 premises. Some normally permitted changes may require planning permission.
Show all 5 rows
Central Activities Zone
Named designation not supplied · reference CAZ00000005 · covers 1 of 1 premises. London Plan policies for the Central Activities Zone may apply.
Conservation Area
Mayfair · reference CONARA/1270 · covers 1 of 1 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 14 applications in this postcode — the party who applied, not the owner or occupier.
Name
Details
Applicant on 5 applications
Applicant on 4 applications
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Agent on 6 applications
Agent on 4 applications
Agent on 1 application
Agent on 1 application
Applicant on 5 applications
Applicant on 4 applications
Applicant on 1 application
Show all 10 rows
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Agent on 6 applications
Agent on 4 applications
Agent on 1 application
Agent on 1 application
Development
What could it become?
Planning precedent14 applications and 16 mapped decisions in this postcode — precedent for what has been permitted and refused here.
EnergyNo EPC records joined yet.
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.
No intent signal is currently recorded in this postcode.
Boundary: OS Postcode Unit areas (Ordnance Survey), 2026-08-14. Planning records: canonical stage2. EPC: EPC register. Premises: OS AddressBase / UPRN.