Planning Atlas
Planning AtlasWestminsterSt James's wardSW1Y 5AP
Postcode record · Westminster

SW1Y 5AP.

SW1Y 5AP has 16 known premises and 23 planning records — 20 approved of 21 decided (95.2%). 12 EPC records.

WestminsterSt James'sSW1Y 5AP
Postcode SW1Y 5AP · boundary not held, centred on the postcodeApprovedRefusedOther65 exact6 approximate71 on the map — every match
At a glance · this postcodeWestminster profile →
16
Premises
known addresses (UPRNs)
23
Applications
21 decided
95.2%
Approval rate
20 approved · 1 refused
12
EPC records
ratings B 2 · C 10
71
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?

SW1Y 5AP has 16 known premises and 23 planning records — 20 approved of 21 decided (95.2%). 12 EPC records.

Premises

Planning

What happened?

23 planning applications across the postcode; 20 approved of 21 decided (95.2%). Latest 23 shown.

Reference
Proposal · address
Type
Outcome
Date · distance
Amendments to planning permission dated 10 November 2020 (RN: 20/03097/FULL) for the demolition of the existing mansard roof and construction of two floors to create a duplex residential flat with roof terrace and associated works including installation of plant and landscaping works; Namely, alterations to the height of the approved duplex apartments, design of the fenestration and roof arrangement and alterations to the internal layouts at seventh and eighth floor levels.
24 Carlton House Terrace London SW1Y 5AP · premises record
Applicant Not disclosed · Agent DP9 Limited · Officer Zulekha Hosenally
Non-material amendments
Approved
2024-07-10
Amendments to planning permission dated 10 November 2020 (RN:20/03097/FULL) for demolition of the existing mansard roof and construction of two floors to create a duplex residential flat with roof terrace and associated works including installation of plant and landscaping works namely: to increase the height of the building, amendments to the window design, alterations to roof plant, demolition of seventh floor structure, omission of PV panels and alterations to internal layout at seventh and eighth floor levels.
24 Carlton House Terrace London SW1Y 5AP · premises record
Applicant Not disclosed · Agent DP9 Limited · Officer Zulekha Hosenally
Non-material amendments
Refused
2024-05-03
Demolition and removal of window openings on the north east (rear) elevation of the building (Confirmation that the works constitute a material operation sufficient to lawfully implement planning permission dated 10 November 2020 (RN: 20/03097/FULL).
24 Carlton House Terrace London SW1Y 5AP · premises record
Applicant C/0 Agent · Agent DP9 Limited · Officer Zulekha Hosenally
Certificate of Lawfulness (existing)
Approved
2023-12-01
Demolition of the existing mansard roof and construction of two floors to create a duplex residential flat with roof terrace and associated works including installation of plant and landscaping works.
24 Carlton House Terrace London SW1Y 5AP · premises record
Full
Unknown
2020-05-18
Demolition of the existing mansard roof and construction of two floors to create a duplex residential flat with roof terrace and associated works including a new rooftop plant area and extension to the existing internal lift.
24 Carlton House Terrace London SW1Y 5AP · premises record
Applicant Not disclosed · Agent DP9 Limited · Officer Amanda Jackson
Full Planning Permission Application
Approved
2016-03-18
Installation of new entrance doors and canopy to main entrance at ground floor level (Carlton House Terrace elevation).
24 Carlton House Terrace London SW1Y 5AP · premises record
Full Planning Permission Application
Approved
2006-07-05
Relocation of window to partially enclose balcony to Flat 12.
Flats 1 - 15 24 Carlton House Terrace London SW1Y 5AP · premises record
Applicant HICERNET CORPORATION · Agent DMG LTD
Full Planning Permission Application
Approved
1999-09-09
ERECTION OF ILLUMINATED ENTRANCE FOYER SIGNS.
Flats 1 - 15 24 Carlton House Terrace London SW1Y 5AP · premises record
Advert Application (ADV)
Approved
1999-08-26
CHANGE OF USE OF PART GROUND FLOOR FROM ART GALLERY TO B1 OFFICES. (REVISED SCHEME)
Flats 1 - 15 24 Carlton House Terrace London SW1Y 5AP · premises record
Full Planning Permission Application
Approved
1999-06-28
Installation of one condenser unit to balcony of Flat 5, at second floor level.
Flat 5 24 Carlton House Terrace London SW1Y 5AP · premises record
Full Planning Permission Application
Approved
1999-06-23
Amendments to planning permission dated 10 November 2020 (RN: 20/03097/FULL) for the demolition of the existing mansard roof and construction of two floors to create a duplex residential flat with roof terrace and associated works including installation of plant and landscaping works; Namely, alterations to the height of the approved duplex apartments, design of the fenestration and roof arrangement and alterations to the internal layouts at seventh and eighth floor levels.
24 Carlton House Terrace London SW1Y 5AP · premises record
Applicant Not disclosed · Agent DP9 Limited · Officer Zulekha Hosenally
Approved
2024-07-10
More
Non-material amendments
Amendments to planning permission dated 10 November 2020 (RN:20/03097/FULL) for demolition of the existing mansard roof and construction of two floors to create a duplex residential flat with roof terrace and associated works including installation of plant and landscaping works namely: to increase the height of the building, amendments to the window design, alterations to roof plant, demolition of seventh floor structure, omission of PV panels and alterations to internal layout at seventh and eighth floor levels.
24 Carlton House Terrace London SW1Y 5AP · premises record
Applicant Not disclosed · Agent DP9 Limited · Officer Zulekha Hosenally
Refused
2024-05-03
More
Non-material amendments
Demolition and removal of window openings on the north east (rear) elevation of the building (Confirmation that the works constitute a material operation sufficient to lawfully implement planning permission dated 10 November 2020 (RN: 20/03097/FULL).
24 Carlton House Terrace London SW1Y 5AP · premises record
Applicant C/0 Agent · Agent DP9 Limited · Officer Zulekha Hosenally
Approved
2023-12-01
More
Certificate of Lawfulness (existing)
Show all 10 rows
Demolition of the existing mansard roof and construction of two floors to create a duplex residential flat with roof terrace and associated works including installation of plant and landscaping works.
24 Carlton House Terrace London SW1Y 5AP · premises record
Unknown
2020-05-18
More
Full
Demolition of the existing mansard roof and construction of two floors to create a duplex residential flat with roof terrace and associated works including a new rooftop plant area and extension to the existing internal lift.
24 Carlton House Terrace London SW1Y 5AP · premises record
Applicant Not disclosed · Agent DP9 Limited · Officer Amanda Jackson
Approved
2016-03-18
More
Full Planning Permission Application
Installation of new entrance doors and canopy to main entrance at ground floor level (Carlton House Terrace elevation).
24 Carlton House Terrace London SW1Y 5AP · premises record
Approved
2006-07-05
More
Full Planning Permission Application
Relocation of window to partially enclose balcony to Flat 12.
Flats 1 - 15 24 Carlton House Terrace London SW1Y 5AP · premises record
Applicant HICERNET CORPORATION · Agent DMG LTD
Approved
1999-09-09
More
Full Planning Permission Application
ERECTION OF ILLUMINATED ENTRANCE FOYER SIGNS.
Flats 1 - 15 24 Carlton House Terrace London SW1Y 5AP · premises record
Approved
1999-08-26
More
Advert Application (ADV)
CHANGE OF USE OF PART GROUND FLOOR FROM ART GALLERY TO B1 OFFICES. (REVISED SCHEME)
Flats 1 - 15 24 Carlton House Terrace London SW1Y 5AP · premises record
Approved
1999-06-28
More
Full Planning Permission Application
Installation of one condenser unit to balcony of Flat 5, at second floor level.
Flat 5 24 Carlton House Terrace London SW1Y 5AP · premises record
Approved
1999-06-23
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 16 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 16 of 16 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 16 of 16 premises. Some normally permitted changes may require planning permission.
Central Activities Zone
Named designation not supplied · reference CAZ00000005 · covers 16 of 16 premises. London Plan policies for the Central Activities Zone may apply.
Conservation Area
St James's · reference CONARA/1330 · covers 16 of 16 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 16 of 16 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 16 of 16 premises. Some normally permitted changes may require planning permission.
Central Activities Zone
Named designation not supplied · reference CAZ00000005 · covers 16 of 16 premises. London Plan policies for the Central Activities Zone may apply.
Show all 4 rows
Conservation Area
St James's · reference CONARA/1330 · covers 16 of 16 premises. Demolition, alterations, trees and design are subject to additional heritage controls.
People

Who is involved?

Named on the latest 23 applications in this postcode — the party who applied, not the owner or occupier.

Name
Details
Applicant on 3 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 3 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
Development

What could it become?

Planning precedent23 applications and 71 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy12 EPC records; ratings B: 2, C: 10.
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 Pro

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
Long hold
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.
SW1Y 5AP, Westminster: Planning and Property History | Planning Atlas