Postcode record · Westminster
SW1Y 5AN.
SW1Y 5AN has 5 known premises and 39 planning records — 30 approved of 37 decided (81.1%).
Postcode SW1Y 5AN · boundary not held, centred on the postcodeApprovedRefusedOther65 exact6 approximate71 on the map — every match
At a glance · this postcodeWestminster profile →
5
Premises
known addresses (UPRNs)
39
Applications
37 decided
81.1%
Approval rate
30 approved · 7 refused
0
EPC records
none recorded
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 5AN has 5 known premises and 39 planning records — 30 approved of 37 decided (81.1%).
Premises
Name
Details
UPRN 10033642668
UPRN 10033653047
UPRN 10033661193
UPRN 10092071062
UPRN 100023349615
UPRN 10033642668
UPRN 10033653047
UPRN 10033661193
Show all 5 rows
UPRN 10092071062
UPRN 100023349615
Planning
What happened?
39 planning applications across the postcode; 30 approved of 37 decided (81.1%). Latest 30 shown.
Reference
Proposal · address
Type
Outcome
Date · distance
Installation of external lighting to the eighth and tenth floor terraces.
20 Carlton House Terrace London SW1Y 5AN · premises record
Full Planning Permission Application
Approved
2025-09-29
Details of manufacturer's specification of light fittings (labelled FL1-DZ4, F1-D27 on the Carlton House Terrace elevation, F3-DZ14 on the Warwick House Street elevation and F2-DZ10 and F2-DZ9 on the Cockspur Court Facade) pursuant to condition 5 of planning permission dated 04 November 2024 (RN: 24/01754/FULL).
20 Carlton House Terrace London SW1Y 5AN · premises record
Approval of Details (Full PP)
Approved
2025-08-29
Detailed design of the of entrance doors to the basement car park area including the vehicular entrance and exit to the basement car park area; and new staircase to Cockspur Court pursuant to Condition 9 (iv and vi) (partial) of planning permission dated 28 July 2023 (RN 23/02725/FULL).
20 Carlton House Terrace London SW1Y 5AN · premises record
Approval of Details (Full PP)
Approved
2025-08-15
Amendments to the glazed pavilion at tenth floor terrace level.
20 Carlton House Terrace London SW1Y 5AN · premises record
Full Planning Permission Application
Approved
2025-08-14
Retention of pergola structure at L8 terrace, new bi-fold doors at L8 terrace and new louvres at ground floor level fronting Cockspur Court and Warwick House Street.
20 Carlton House Terrace London SW1Y 5AN · premises record
Full
Approved
2025-08-12
Detail of land contamination Phase 4 validation report pursuant to condition 4 of planning permission dated 28th July 2023 (RN: 23/02725/FULL).
20 Carlton House Terrace London SW1Y 5AN · premises record
Approval of Details (Full PP)
Approved
2025-06-09
Details of manuafacturer's specification of light fittings (labelled FL1-DZ4, F1-D27 on the Carlton House Terrace elevation, F3-DZ14 on the Warwick House Street elevation and F2-DZ10 and F2-DZ9 on the Cockspur Court Facade) pursuant to condition 5 of planning permission dated 04 November 2024 (RN: 24/01754/FULL).
20 Carlton House Terrace London SW1Y 5AN · premises record
Approval of Details (Full PP)
Refused
2025-06-05
Detailed drawings of a hard and soft landscaping scheme to Cockspur Court, which includes the number, size, species and position of trees and shrubs; landscape management plan for Cockspur Court including construction method, layout, species, maintenance and watering regime; and detailed drawings and specifications of the rooting environment beneath the existing surface of Cockspur Court including details of any imported soil or soil crating system required to establish the new landscaping to Cockspur Court pursuant to Conditions 33 (partial - Cockspur Court), Condition 34 (partial - Cockspur Court) and 35 of planning permission dated 28th July 2023 (23/02725/FULL).
20 Carlton House Terrace London SW1Y 5AN · premises record
Approval of Details (Full PP)
Refused
2024-12-13
Detailed drawings of a hard and soft landscaping scheme to the eighth and tenth floor terrace areas, which includes the number, size, species and position of trees and shrubs and a management plan for the landscaping of the eighth and tenth floor terraces pursuant to Conditions 33 (partial) and Condition 34 (partial) of planning permission dated 28 July 2023 (23/02725/FULL).
20 Carlton House Terrace London SW1Y 5AN · premises record
Approval of Details (Full PP)
Approved
2024-12-11
Details of a) Private public realm works to Cockspur Court; b) detail design of the vehicle ramp gradients (minimum gradient - 1:8) including transition zones (1:10 and 1:20 as appropriate); c) signalling mechanisms to allow for vehicle flow in both directions; d) waiting and passing locations; e) appropriate protection to pedestrians (including location of seats and benches) and other users of the space from vehicular activity and measures to prioritise cycle access; f) details of the materials, drainage and lighting designs; and g) the minimum vertical clearance heights of any structure, including new stair core pursuant to Condition 6 (a-g) of planning permission dated 28 July 2023 (23/02725/FULL).
20 Carlton House Terrace London SW1Y 5AN · premises record
Approval of Details (Full PP)
Approved
2024-12-06
Installation of external lighting to the eighth and tenth floor terraces.
20 Carlton House Terrace London SW1Y 5AN · premises record
Approved
2025-09-29
More
Full Planning Permission Application
Details of manufacturer's specification of light fittings (labelled FL1-DZ4, F1-D27 on the Carlton House Terrace elevation, F3-DZ14 on the Warwick House Street elevation and F2-DZ10 and F2-DZ9 on the Cockspur Court Facade) pursuant to condition 5 of planning permission dated 04 November 2024 (RN: 24/01754/FULL).
20 Carlton House Terrace London SW1Y 5AN · premises record
Approved
2025-08-29
More
Approval of Details (Full PP)
Detailed design of the of entrance doors to the basement car park area including the vehicular entrance and exit to the basement car park area; and new staircase to Cockspur Court pursuant to Condition 9 (iv and vi) (partial) of planning permission dated 28 July 2023 (RN 23/02725/FULL).
20 Carlton House Terrace London SW1Y 5AN · premises record
Approved
2025-08-15
More
Approval of Details (Full PP)
Show all 10 rows
Amendments to the glazed pavilion at tenth floor terrace level.
20 Carlton House Terrace London SW1Y 5AN · premises record
Approved
2025-08-14
More
Full Planning Permission Application
Retention of pergola structure at L8 terrace, new bi-fold doors at L8 terrace and new louvres at ground floor level fronting Cockspur Court and Warwick House Street.
20 Carlton House Terrace London SW1Y 5AN · premises record
Approved
2025-08-12
More
Full
Detail of land contamination Phase 4 validation report pursuant to condition 4 of planning permission dated 28th July 2023 (RN: 23/02725/FULL).
20 Carlton House Terrace London SW1Y 5AN · premises record
Approved
2025-06-09
More
Approval of Details (Full PP)
Details of manuafacturer's specification of light fittings (labelled FL1-DZ4, F1-D27 on the Carlton House Terrace elevation, F3-DZ14 on the Warwick House Street elevation and F2-DZ10 and F2-DZ9 on the Cockspur Court Facade) pursuant to condition 5 of planning permission dated 04 November 2024 (RN: 24/01754/FULL).
20 Carlton House Terrace London SW1Y 5AN · premises record
Refused
2025-06-05
More
Approval of Details (Full PP)
Detailed drawings of a hard and soft landscaping scheme to Cockspur Court, which includes the number, size, species and position of trees and shrubs; landscape management plan for Cockspur Court including construction method, layout, species, maintenance and watering regime; and detailed drawings and specifications of the rooting environment beneath the existing surface of Cockspur Court including details of any imported soil or soil crating system required to establish the new landscaping to Cockspur Court pursuant to Conditions 33 (partial - Cockspur Court), Condition 34 (partial - Cockspur Court) and 35 of planning permission dated 28th July 2023 (23/02725/FULL).
20 Carlton House Terrace London SW1Y 5AN · premises record
Refused
2024-12-13
More
Approval of Details (Full PP)
Detailed drawings of a hard and soft landscaping scheme to the eighth and tenth floor terrace areas, which includes the number, size, species and position of trees and shrubs and a management plan for the landscaping of the eighth and tenth floor terraces pursuant to Conditions 33 (partial) and Condition 34 (partial) of planning permission dated 28 July 2023 (23/02725/FULL).
20 Carlton House Terrace London SW1Y 5AN · premises record
Approved
2024-12-11
More
Approval of Details (Full PP)
Details of a) Private public realm works to Cockspur Court; b) detail design of the vehicle ramp gradients (minimum gradient - 1:8) including transition zones (1:10 and 1:20 as appropriate); c) signalling mechanisms to allow for vehicle flow in both directions; d) waiting and passing locations; e) appropriate protection to pedestrians (including location of seats and benches) and other users of the space from vehicular activity and measures to prioritise cycle access; f) details of the materials, drainage and lighting designs; and g) the minimum vertical clearance heights of any structure, including new stair core pursuant to Condition 6 (a-g) of planning permission dated 28 July 2023 (23/02725/FULL).
20 Carlton House Terrace London SW1Y 5AN · premises record
Approved
2024-12-06
More
Approval of Details (Full PP)
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 5 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 5 of 5 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 5 of 5 premises. Some normally permitted changes may require planning permission.
Central Activities Zone
Named designation not supplied · reference CAZ00000005 · covers 5 of 5 premises. London Plan policies for the Central Activities Zone may apply.
Conservation Area
St James's · reference CONARA/1330 · covers 5 of 5 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 5 of 5 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 5 of 5 premises. Some normally permitted changes may require planning permission.
Central Activities Zone
Named designation not supplied · reference CAZ00000005 · covers 5 of 5 premises. London Plan policies for the Central Activities Zone may apply.
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Conservation Area
St James's · reference CONARA/1330 · covers 5 of 5 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 9 applications
Applicant on 4 applications
Applicant on 1 application
Agent on 8 applications
Agent on 3 applications
Agent on 3 applications
Case officer on 19 applications
Case officer on 9 applications
Applicant on 9 applications
Applicant on 4 applications
Applicant on 1 application
Show all 8 rows
Agent on 8 applications
Agent on 3 applications
Agent on 3 applications
Case officer on 19 applications
Case officer on 9 applications
Development
What could it become?
Planning precedent39 applications and 71 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
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.
No intent signal is currently recorded in this postcode.
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.