Postcode record · Westminster
SW1W 9DU.
SW1W 9DU has 18 known premises and 226 planning records — 195 approved of 214 decided (91.1%). 12 EPC records.
Postcode SW1W 9DU · boundary not held, centred on the postcodeApprovedRefusedOther226 on the map — every match
At a glance · this postcodeWestminster profile →
18
Premises
known addresses (UPRNs)
226
Applications
214 decided
91.1%
Approval rate
195 approved · 19 refused
61 days
Median decision time
average 83 days · 218 dated decisions
12
EPC records
ratings C 1 · D 8 · E 1 · F 1 · G 1
226
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 9DU has 18 known premises and 226 planning records — 195 approved of 214 decided (91.1%). 12 EPC records.
Premises
Name
Details
UPRN 10033549706
UPRN 100022734777
UPRN 100022734778
UPRN 100022734779
UPRN 100022734780
UPRN 100022734781
UPRN 100022734782
UPRN 100022734783
UPRN 100022734784
UPRN 100022734785
UPRN 10033549706
UPRN 100022734777
UPRN 100022734778
Show all 10 rows
UPRN 100022734779
UPRN 100022734780
UPRN 100022734781
UPRN 100022734782
UPRN 100022734783
UPRN 100022734784
UPRN 100022734785
Planning
What happened?
226 planning applications across the postcode; 195 approved of 214 decided (91.1%). Latest 30 shown.
Reference
Proposal · address
Type
Outcome
Date · distance
Detailed drawings (sections and elevations at a scale of 1:10 and/or 1:20) of the new windows and doors (to be annotated to correspond to rooms and floor level) and detailed drawings of section drawing (scale of 1:10) through the mansard showing the dormer window and shoulder of the mansard (see informative 6) pursuant to condition 6 and 9 of planning permission dated 17th May 2024 (RN:24/00172/FULL)
78 Chester Square London SW1W 9DU · premises record
Officer Nikki Mitchell
Approval of Details (Full PP)
Pending
2026-05-18
detailed drawings (sections and elevations at a scale of 1:10 and/or 1:20) of the new windows and doors (to be annotated to correspond to rooms and floor level) and detailed drawings of section drawing (scale of 1:10) through the mansard showing the dormer window and shoulder of the mansard (see informative 3) pursuant to condition 3 (A), 6 of listed building dated 17th May 2024 (RN:24/00173/LBC)
78 Chester Square London SW1W 9DU · premises record
Officer Nikki Mitchell
Approval of Details (ADLBC)
Pending
2026-05-18
Details of new interior details, which must be appropriate to the period of the building and their location; pursuant to condition 3 (part iii) of Listed Building Consent dated 11th January 2023 (RN 22/05928/LBC)
79 Chester Square London SW1W 9DU · premises record
Officer Nikki Mitchell
Approval of Details (ADLBC)
Approved
2026-05-07
Details of new interior details, which must be appropriate to the period of the building and their location; pursuant to condition 5 (part iii) of planning permission dated 5th January 2023 (RN 22/05927/FULL)
79 Chester Square London SW1W 9DU · premises record
Officer Nikki Mitchell
Approval of Details (Full PP)
Approved
2026-05-07
Detailed drawings and a bio-diversity management plan in relation to the intensive green roof on extension at second floor level pursuant to Condition 9 (partial) of planning permission dated 5th January 2023 (RN: 22/05927/FULL)
79 Chester Square London SW1W 9DU · premises record
Officer Nikki Mitchell
Approval of Details (Full PP)
Approved
2026-05-06
Details of samples (photographs) of facing materials, including glazing; detailed methodologies for the repair of the render and brickwork; and detailed methodology and drawings to show precise locations for all structural repairs including the insertion of the helibars, pursuant to conditions 3, 4 and 5 of planning permission dated 16 January 2025 (RN:24/07270/FULL).
76 Chester Square London SW1W 9DU · premises record
Officer Nikki Mitchell
Approval of Details (Full PP)
Approved
2025-06-05
Details of samples (photographs) of facing materials,, including glazing; detailed methodologies for the repair of the render and brickwork; and detailed methodology and drawings showing precise locations for all structural repairs including the insertion of the helibars, pursuant to condition 3, 4 and 5 of listed building dated 16 January 2025 (RN:24/07271/LBC).
76 Chester Square London SW1W 9DU · premises record
Officer Nikki Mitchell
Approval of Details (ADLBC)
Approved
2025-06-05
Addition of a glazed roof/ infill extension within the rear light well at ground floor level, and relocation of the living wall to the rear mews elevation.
79 Chester Square London SW1W 9DU · premises record
Officer Charles Cooksley
Full Planning Permission Application
Approved
2025-02-28
Addition of a glazed roof/ infill extension within the rear light well at ground floor level, relocation of the living wall to the rear Mews elevation and internal removal of the glazed sliding doors.
79 Chester Square London SW1W 9DU · premises record
Officer Charles Cooksley
Listed Building Consent Application
Approved
2025-02-26
Details of the new basement staircase pursuant to condition 5 (iv) of planning permission dated 05 January 2023 (RN: 22/05927/FULL).
79 Chester Square London SW1W 9DU · premises record
Officer Nikki Mitchell
Approval of Details (Full PP)
Approved
2025-01-29
Detailed drawings (sections and elevations at a scale of 1:10 and/or 1:20) of the new windows and doors (to be annotated to correspond to rooms and floor level) and detailed drawings of section drawing (scale of 1:10) through the mansard showing the dormer window and shoulder of the mansard (see informative 6) pursuant to condition 6 and 9 of planning permission dated 17th May 2024 (RN:24/00172/FULL)
78 Chester Square London SW1W 9DU · premises record
Officer Nikki Mitchell
Pending
2026-05-18
More
Approval of Details (Full PP)
detailed drawings (sections and elevations at a scale of 1:10 and/or 1:20) of the new windows and doors (to be annotated to correspond to rooms and floor level) and detailed drawings of section drawing (scale of 1:10) through the mansard showing the dormer window and shoulder of the mansard (see informative 3) pursuant to condition 3 (A), 6 of listed building dated 17th May 2024 (RN:24/00173/LBC)
78 Chester Square London SW1W 9DU · premises record
Officer Nikki Mitchell
Pending
2026-05-18
More
Approval of Details (ADLBC)
Details of new interior details, which must be appropriate to the period of the building and their location; pursuant to condition 3 (part iii) of Listed Building Consent dated 11th January 2023 (RN 22/05928/LBC)
79 Chester Square London SW1W 9DU · premises record
Officer Nikki Mitchell
Approved
2026-05-07
More
Approval of Details (ADLBC)
Show all 10 rows
Details of new interior details, which must be appropriate to the period of the building and their location; pursuant to condition 5 (part iii) of planning permission dated 5th January 2023 (RN 22/05927/FULL)
79 Chester Square London SW1W 9DU · premises record
Officer Nikki Mitchell
Approved
2026-05-07
More
Approval of Details (Full PP)
Detailed drawings and a bio-diversity management plan in relation to the intensive green roof on extension at second floor level pursuant to Condition 9 (partial) of planning permission dated 5th January 2023 (RN: 22/05927/FULL)
79 Chester Square London SW1W 9DU · premises record
Officer Nikki Mitchell
Approved
2026-05-06
More
Approval of Details (Full PP)
Details of samples (photographs) of facing materials, including glazing; detailed methodologies for the repair of the render and brickwork; and detailed methodology and drawings to show precise locations for all structural repairs including the insertion of the helibars, pursuant to conditions 3, 4 and 5 of planning permission dated 16 January 2025 (RN:24/07270/FULL).
76 Chester Square London SW1W 9DU · premises record
Officer Nikki Mitchell
Approved
2025-06-05
More
Approval of Details (Full PP)
Details of samples (photographs) of facing materials,, including glazing; detailed methodologies for the repair of the render and brickwork; and detailed methodology and drawings showing precise locations for all structural repairs including the insertion of the helibars, pursuant to condition 3, 4 and 5 of listed building dated 16 January 2025 (RN:24/07271/LBC).
76 Chester Square London SW1W 9DU · premises record
Officer Nikki Mitchell
Approved
2025-06-05
More
Approval of Details (ADLBC)
Addition of a glazed roof/ infill extension within the rear light well at ground floor level, and relocation of the living wall to the rear mews elevation.
79 Chester Square London SW1W 9DU · premises record
Officer Charles Cooksley
Approved
2025-02-28
More
Full Planning Permission Application
Addition of a glazed roof/ infill extension within the rear light well at ground floor level, relocation of the living wall to the rear Mews elevation and internal removal of the glazed sliding doors.
79 Chester Square London SW1W 9DU · premises record
Officer Charles Cooksley
Approved
2025-02-26
More
Listed Building Consent Application
Details of the new basement staircase pursuant to condition 5 (iv) of planning permission dated 05 January 2023 (RN: 22/05927/FULL).
79 Chester Square London SW1W 9DU · premises record
Officer Nikki Mitchell
Approved
2025-01-29
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 18 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 18 of 18 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 18 of 18 premises. Some normally permitted changes may require planning permission.
Conservation Area
Belgravia · reference CONARA/1350 · covers 18 of 18 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 18 of 18 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 18 of 18 premises. Some normally permitted changes may require planning permission.
Conservation Area
Belgravia · reference CONARA/1350 · covers 18 of 18 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
Case officer on 22 applications
Case officer on 2 applications
Case officer on 2 applications
Case officer on 1 application
Case officer on 22 applications
Case officer on 2 applications
Case officer on 2 applications
Show all 4 rows
Case officer on 1 application
Development
What could it become?
Planning precedent226 applications and 226 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy12 EPC records; ratings C: 1, D: 8, E: 1, F: 1, G: 1.
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.
6 intent signals recorded in this postcode
Portfolio seller · Repeat sale · Price decline · EPC F/G · 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.