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Planning Atlas›Westminster›…West End ward›W1K 3AT
AtlasWestminsterWest EndW1K 3AT
Postcode record · Westminster

W1K 3AT.

W1K 3AT has 4 known premises and 11 planning records — 8 approved of 8 decided (100%).

Westminster›West End›W1K 3AT
Postcode W1K 3AT · boundary not held, centred on the postcodeApprovedRefusedOther30 exact30 on the map — every match
At a glance · this postcodeWestminster profile →
4
Premises
known addresses (UPRNs)
11
Applications
8 decided
100%
Approval rate
8 approved · 0 refused
0
EPC records
none recorded
30
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 3AT has 4 known premises and 11 planning records — 8 approved of 8 decided (100%).

Premises

Planning

What happened?

11 planning applications across the postcode; 8 approved of 8 decided (100%). Latest 11 shown.

Reference
Proposal · address
Type
Outcome
Date · distance
External alterations including the installation of a ramped entrance in place of existing steps and consequential lowering of the external entrance door.
9 Carlos Place London W1K 3AT · premises record
Applicant Philo · Agent Gregori Chiarotti Projects · Officer Ms Priscilla Ogie
Full Planning Permission Application
Pending
2026-03-20
Installation of two ASHP units located in the ground floor rear courtyard area within an new acoustic enclosure at No. 9/10 Carlos Place; installation of three ASHP units located underneath the fire escape stairs on the lower ground floor level within a new acoustic screen at No. 11 Carlos Place and installation and replacement of existing ventilation/extract louvres/grilles on the rear elevation of Nos. 9-11 Carlos Place facing into the buildings rear lightwell. (Site includes 9, 10 and 11 Carlos Place).
9 Carlos Place London W1K 3AT · premises record
Applicant Grosvenor · Agent Designsplus Architects · Officer Ms Priscilla Ogie
Full Planning Permission Application
Approved
2025-07-01
Installation of new ground floor window, introduction of a platform lift within the front lightwell and associated alterations to lightwell railings, alterations to the stepped arrangement around the main entrance, Installation of new door within front lightwell, replacement of existing fans in windows with new glazing at no.10. Replacement of rear entrance doors at no.9 and no.11. (Site includes 9, 10 and 11 Carlos Place).
9 Carlos Place London W1K 3AT · premises record
Applicant Grosvenor · Agent Designsplus Architects · Officer Adam Jones
Full Planning Permission Application
Approved
2024-11-19
Display for a temporary period of six months of a non-illuminated 'to let' board on the face of the building, at no.9, at street level and measuring 0.6m x 0.45m.
9-10 Carlos Place London W1K 3AT · premises record
Applicant Cyril Leonard · Agent Combined Signs · Officer Ken Powell
Advert Application-Regulat. 7 Area (AD7)
Approved
2010-08-16
Display for a temporary period of six months of a non-illuminated 'to let' board on the face of the building, at no.9, at street level and measuring 0.6m x 0.45m.
9-10 Carlos Place London W1K 3AT · premises record
Applicant Kinney Green · Agent Combined Signs · Officer Ken Powell
Advert Application-Regulat. 7 Area (AD7)
Approved
2010-02-15
Erection of two stainless steel plaques on the ground floor front elevation measuring 0.6m x 0.2m.
9 - 10 Carlos Place London W1K 3AT · premises record
Advert Application (ADV)
Approved
2009-11-02
Display for a temporary period of six months of a non-illuminated 'to let' board on the face of the building, at no.9, at street level and measuring 0.6m x 0.45m
9 - 10 Carlos Place London W1K 3AT · premises record
Applicant Cyril Leonard · Agent Combined Signs · Officer Ken Powell
Advert Application-Regulat. 7 Area (AD7)
Approved
2008-12-22
3 RELOCATED & 1 NEW WALL MOUNTED CONDENSER UNITS TO BE CONCEALED WITHIN AN ACCOUSTIC LOUVRED ENCLOSURE WITHIN BASEMENT LEVEL COURTYARD
9 - 10 Carlos Place London W1K 3AT · premises record
Full Planning Permission Application
Approved
1997-10-02
ESTATE AGENTS BOARD AT 11
9 - 10 Carlos Place London W1K 3AT · premises record
Advert Application-Regulat. 7 Area (AD7)
Approved
1996-01-18
Display for a temporary period of six months of a non-illuminated 'to let' board on the face of the building at street level and measuring 0.6m x 0.45m
9 - 10 Carlos Place London W1K 3AT · premises record
—
Unknown
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External alterations including the installation of a ramped entrance in place of existing steps and consequential lowering of the external entrance door.
9 Carlos Place London W1K 3AT · premises record
Applicant Philo · Agent Gregori Chiarotti Projects · Officer Ms Priscilla Ogie
Pending
2026-03-20
More
Full Planning Permission Application
Installation of two ASHP units located in the ground floor rear courtyard area within an new acoustic enclosure at No. 9/10 Carlos Place; installation of three ASHP units located underneath the fire escape stairs on the lower ground floor level within a new acoustic screen at No. 11 Carlos Place and installation and replacement of existing ventilation/extract louvres/grilles on the rear elevation of Nos. 9-11 Carlos Place facing into the buildings rear lightwell. (Site includes 9, 10 and 11 Carlos Place).
9 Carlos Place London W1K 3AT · premises record
Applicant Grosvenor · Agent Designsplus Architects · Officer Ms Priscilla Ogie
Approved
2025-07-01
More
Full Planning Permission Application
Installation of new ground floor window, introduction of a platform lift within the front lightwell and associated alterations to lightwell railings, alterations to the stepped arrangement around the main entrance, Installation of new door within front lightwell, replacement of existing fans in windows with new glazing at no.10. Replacement of rear entrance doors at no.9 and no.11. (Site includes 9, 10 and 11 Carlos Place).
9 Carlos Place London W1K 3AT · premises record
Applicant Grosvenor · Agent Designsplus Architects · Officer Adam Jones
Approved
2024-11-19
More
Full Planning Permission Application
Show all 10 rows
Display for a temporary period of six months of a non-illuminated 'to let' board on the face of the building, at no.9, at street level and measuring 0.6m x 0.45m.
9-10 Carlos Place London W1K 3AT · premises record
Applicant Cyril Leonard · Agent Combined Signs · Officer Ken Powell
Approved
2010-08-16
More
Advert Application-Regulat. 7 Area (AD7)
Display for a temporary period of six months of a non-illuminated 'to let' board on the face of the building, at no.9, at street level and measuring 0.6m x 0.45m.
9-10 Carlos Place London W1K 3AT · premises record
Applicant Kinney Green · Agent Combined Signs · Officer Ken Powell
Approved
2010-02-15
More
Advert Application-Regulat. 7 Area (AD7)
Erection of two stainless steel plaques on the ground floor front elevation measuring 0.6m x 0.2m.
9 - 10 Carlos Place London W1K 3AT · premises record
Approved
2009-11-02
More
Advert Application (ADV)
Display for a temporary period of six months of a non-illuminated 'to let' board on the face of the building, at no.9, at street level and measuring 0.6m x 0.45m
9 - 10 Carlos Place London W1K 3AT · premises record
Applicant Cyril Leonard · Agent Combined Signs · Officer Ken Powell
Approved
2008-12-22
More
Advert Application-Regulat. 7 Area (AD7)
3 RELOCATED & 1 NEW WALL MOUNTED CONDENSER UNITS TO BE CONCEALED WITHIN AN ACCOUSTIC LOUVRED ENCLOSURE WITHIN BASEMENT LEVEL COURTYARD
9 - 10 Carlos Place London W1K 3AT · premises record
Approved
1997-10-02
More
Full Planning Permission Application
ESTATE AGENTS BOARD AT 11
9 - 10 Carlos Place London W1K 3AT · premises record
Approved
1996-01-18
More
Advert Application-Regulat. 7 Area (AD7)
Display for a temporary period of six months of a non-illuminated 'to let' board on the face of the building at street level and measuring 0.6m x 0.45m
9 - 10 Carlos Place London W1K 3AT · premises record
Unknown
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More
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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 4 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 4 of 4 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 4 of 4 premises. Some normally permitted changes may require planning permission.
Central Activities Zone
Named designation not supplied · reference CAZ00000005 · covers 4 of 4 premises. London Plan policies for the Central Activities Zone may apply.
Conservation Area
Mayfair · reference CONARA/1270 · covers 4 of 4 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 4 of 4 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 4 of 4 premises. Some normally permitted changes may require planning permission.
Central Activities Zone
Named designation not supplied · reference CAZ00000005 · covers 4 of 4 premises. London Plan policies for the Central Activities Zone may apply.
Show all 4 rows
Conservation Area
Mayfair · reference CONARA/1270 · covers 4 of 4 premises. Demolition, alterations, trees and design are subject to additional heritage controls.
People

Who is involved?

Named on the latest 11 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
Agent on 4 applications
Agent on 2 applications
Agent 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
Agent on 4 applications
Agent on 2 applications
Agent on 1 application
Development

What could it become?

Planning precedent11 applications and 30 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 Plan

Ownership, finance and market signals recorded at addresses in this postcode — each with date and source. Signals are evidence of change, not a prediction.

1 intent signal recorded in this postcode
Portfolio seller
Subscribe to see the signals →
Boundary: OS Postcode Unit areas (Ordnance Survey), 2026-08-14. Planning records: canonical stage2. EPC: EPC register. Premises: OS AddressBase / UPRN.
W1K 3AT, Westminster: Planning and Property History | Planning Atlas