Postcode record · Westminster
SW1W 9DS.
SW1W 9DS has 13 known premises and 12 planning records — 7 approved of 9 decided (77.8%). 7 EPC records.
Postcode SW1W 9DS · boundary not held, centred on the postcodeApprovedRefusedOther12 on the map — every match
At a glance · this postcodeWestminster profile →
13
Premises
known addresses (UPRNs)
12
Applications
9 decided
77.8%
Approval rate
7 approved · 2 refused
64 days
Median decision time
average 65 days · 11 dated decisions
7
EPC records
ratings D 4 · E 3
12
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?
SW1W 9DS has 13 known premises and 12 planning records — 7 approved of 9 decided (77.8%). 7 EPC records.
Premises
Name
Details
UPRN 10033550211
UPRN 10033656387
UPRN 10091844480
UPRN 10091844481
UPRN 100022734802
UPRN 100022734803
UPRN 100022734804
UPRN 100022734805
UPRN 100022734806
UPRN 100022734807
UPRN 10033550211
UPRN 10033656387
UPRN 10091844480
Show all 10 rows
UPRN 10091844481
UPRN 100022734802
UPRN 100022734803
UPRN 100022734804
UPRN 100022734805
UPRN 100022734806
UPRN 100022734807
Planning
What happened?
12 planning applications across the postcode; 7 approved of 9 decided (77.8%). Latest 12 shown.
Reference
Proposal · address
Type
Outcome
Date · distance
Details showing the provision of electric vehicle charging facilities, available for use within the garage, detailed drawings (elevations and sections at a scale of 1:10 or 1:20) of the construction and window details of the new dormers to the mews, new garage doors and new window and door to the ground floor mews elevation and details of how waste is to be stored on site and how materials for recycling will be stored separately pursuant to condition 4, 8 and 9 of planning permission dated 23rd January 2025 (RN:24/08100/FULL)
3 Chester Square Mews London SW1W 9DS · premises record
Officer Nikki Mitchell
Approval of Details (Full PP)
Pending
2026-05-18
Detailed drawings of construction and window details of the new dormers to the mews; new garage doors; and New window and door to the ground floor mews elevation pursuant to conditon 4, a, b, c of listed building consent dated 22nd January 2025 (RN 24/08101/LBC)
3 Chester Square Mews London SW1W 9DS · premises record
Officer Nikki Mitchell
Approval of Details (ADLBC)
Approved
2026-05-18
Details of the completed Appendix A checklist from the Code of Construction Practice pursuant to Condition 3 of planning permission dated 23 January 2025 (RN:24/08100/FULL).
3 Chester Square Mews London SW1W 9DS · premises record
Officer Nikki Mitchell
Approval of Details (Full PP)
Approved
2025-07-16
Excavation to create new basement level; erection of mansard roof addition and reconfiguration of internal space at ground floor level.
3 Chester Square Mews London SW1W 9DS · premises record
Officer Zulekha Hosenally
Listed Building Consent Application
Approved
2024-11-20
Excavation to create new basement level and erection of mansard roof addition to create self-contained maisonette to the upper floors of 3 Chester Square Mews; reconfiguration at ground floor level to facilitate use of ground floor and new basement as storage and parking by 78 Chester Square.
3 Chester Square Mews London SW1W 9DS · premises record
Officer Zulekha Hosenally
Full Planning Permission Application
Approved
2024-11-20
Excavation to create new basement level; erection of mansard roof addition and reconfiguration of internal space at ground floor level.
3 Chester Square Mews London SW1W 9DS · premises record
Officer Zulekha Hosenally
Listed Building Consent Application
Refused
2024-08-23
Excavation to create new basement level and erection of mansard roof addition to create self-contained maisonette to the upper floors of 3 Chester Square Mews; reconfiguration at ground floor level to facilitate use of ground and new basement as storage and parking by 78 Chester Square.
3 Chester Square Mews London SW1W 9DS · premises record
Officer Zulekha Hosenally
Full Planning Permission Application
Refused
2024-08-23
Notification for Prior Approval for change of use of ground floor from Class E into one bedroom flat (Class C3) under Schedule 2, Part 3, Class MA of the Town and Country Planning (General Permitted Development) (England) Order 2015 (as amended).
9A Chester Square Mews London SW1W 9DS · premises record
Officer Jonathon Metcalfe
Prior Approval Class E to Dwellings (MA)
Approved
2024-05-13
Alterations to the ground floor front elevation, including replacement of windows and a door set, removal of a window/increase in the associated opening and application of rendered details.
9 Chester Square Mews London SW1W 9DS · premises record
Officer Allison Borden
Full Planning Permission Application
Withdrawn
2023-05-18
Replacement of metal windows with powder coated aluminium windows (site includes 9A and 9B).
9 Chester Square Mews London SW1W 9DS · premises record
Officer Renee Clarke
Full Planning Permission Application
Approved
2014-04-16
Details showing the provision of electric vehicle charging facilities, available for use within the garage, detailed drawings (elevations and sections at a scale of 1:10 or 1:20) of the construction and window details of the new dormers to the mews, new garage doors and new window and door to the ground floor mews elevation and details of how waste is to be stored on site and how materials for recycling will be stored separately pursuant to condition 4, 8 and 9 of planning permission dated 23rd January 2025 (RN:24/08100/FULL)
3 Chester Square Mews London SW1W 9DS · premises record
Officer Nikki Mitchell
Pending
2026-05-18
More
Approval of Details (Full PP)
Detailed drawings of construction and window details of the new dormers to the mews; new garage doors; and New window and door to the ground floor mews elevation pursuant to conditon 4, a, b, c of listed building consent dated 22nd January 2025 (RN 24/08101/LBC)
3 Chester Square Mews London SW1W 9DS · premises record
Officer Nikki Mitchell
Approved
2026-05-18
More
Approval of Details (ADLBC)
Details of the completed Appendix A checklist from the Code of Construction Practice pursuant to Condition 3 of planning permission dated 23 January 2025 (RN:24/08100/FULL).
3 Chester Square Mews London SW1W 9DS · premises record
Officer Nikki Mitchell
Approved
2025-07-16
More
Approval of Details (Full PP)
Show all 10 rows
Excavation to create new basement level; erection of mansard roof addition and reconfiguration of internal space at ground floor level.
3 Chester Square Mews London SW1W 9DS · premises record
Officer Zulekha Hosenally
Approved
2024-11-20
More
Listed Building Consent Application
Excavation to create new basement level and erection of mansard roof addition to create self-contained maisonette to the upper floors of 3 Chester Square Mews; reconfiguration at ground floor level to facilitate use of ground floor and new basement as storage and parking by 78 Chester Square.
3 Chester Square Mews London SW1W 9DS · premises record
Officer Zulekha Hosenally
Approved
2024-11-20
More
Full Planning Permission Application
Excavation to create new basement level; erection of mansard roof addition and reconfiguration of internal space at ground floor level.
3 Chester Square Mews London SW1W 9DS · premises record
Officer Zulekha Hosenally
Refused
2024-08-23
More
Listed Building Consent Application
Excavation to create new basement level and erection of mansard roof addition to create self-contained maisonette to the upper floors of 3 Chester Square Mews; reconfiguration at ground floor level to facilitate use of ground and new basement as storage and parking by 78 Chester Square.
3 Chester Square Mews London SW1W 9DS · premises record
Officer Zulekha Hosenally
Refused
2024-08-23
More
Full Planning Permission Application
Notification for Prior Approval for change of use of ground floor from Class E into one bedroom flat (Class C3) under Schedule 2, Part 3, Class MA of the Town and Country Planning (General Permitted Development) (England) Order 2015 (as amended).
9A Chester Square Mews London SW1W 9DS · premises record
Officer Jonathon Metcalfe
Approved
2024-05-13
More
Prior Approval Class E to Dwellings (MA)
Alterations to the ground floor front elevation, including replacement of windows and a door set, removal of a window/increase in the associated opening and application of rendered details.
9 Chester Square Mews London SW1W 9DS · premises record
Officer Allison Borden
Withdrawn
2023-05-18
More
Full Planning Permission Application
Replacement of metal windows with powder coated aluminium windows (site includes 9A and 9B).
9 Chester Square Mews London SW1W 9DS · premises record
Officer Renee Clarke
Approved
2014-04-16
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 13 premises each one covers.
Designation
Coverage
Archaeological Priority Area
City of Westminster APA 3.2: Pimlico Summary and Definition: The APA covers the confluence of the Thames and Tyburn rivers. For much of its history this was a low lying marshy area that was sparsely populated until the 19th century when the la · reference 76643 · covers 13 of 13 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 13 of 13 premises. Some normally permitted changes may require planning permission.
Conservation Area
Belgravia · reference CONARA/1350 · covers 13 of 13 premises. Demolition, alterations, trees and design are subject to additional heritage controls.
Archaeological Priority Area
City of Westminster APA 3.2: Pimlico Summary and Definition: The APA covers the confluence of the Thames and Tyburn rivers. For much of its history this was a low lying marshy area that was sparsely populated until the 19th century when the la · reference 76643 · covers 13 of 13 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 13 of 13 premises. Some normally permitted changes may require planning permission.
Conservation Area
Belgravia · reference CONARA/1350 · covers 13 of 13 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 12 applications in this postcode — the party who applied, not the owner or occupier.
Name
Details
Case officer on 4 applications
Case officer on 3 applications
Case officer on 1 application
Case officer on 1 application
Case officer on 1 application
Case officer on 1 application
Case officer on 1 application
Case officer on 4 applications
Case officer on 3 applications
Case officer on 1 application
Show all 7 rows
Case officer on 1 application
Case officer on 1 application
Case officer on 1 application
Case officer on 1 application
Development
What could it become?
Planning precedent12 applications and 12 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy7 EPC records; ratings D: 4, 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.
3 intent signals recorded in this postcode
Repeat sale · Price decline · 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.