Planning Atlas
AtlasPostcodeSW1X7BB
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Planning Atlas›Westminster›…Knightsbridge & Belgravia ward›SW1X 7BB
Postcode record · Westminster

SW1X 7BB.

SW1X 7BB has 40 known premises and 200 planning records — 128 approved of 146 decided (87.7%). 15 EPC records.

Postcode SW1X 7BB · boundary not held, centred on the postcodeApprovedRefusedOther202 on the map — every match
At a glance · this postcodeWestminster profile →
40
Premises
known addresses (UPRNs)
200
Applications
146 decided
87.7%
Approval rate
128 approved · 18 refused
57 days
Median decision time
average 88 days · 182 dated decisions
15
EPC records
ratings C 5 · D 6 · E 3 · F 1
202
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?

SW1X 7BB has 40 known premises and 200 planning records — 128 approved of 146 decided (87.7%). 15 EPC records.

Premises (18 of 40 shown)

Name
Details
UPRN 10033523502
UPRN 10033562431
UPRN 10033562597
UPRN 10033562598
UPRN 10033572036
UPRN 10033578715
UPRN 10033582804
UPRN 10033591486
UPRN 10033601532
UPRN 10033601533
UPRN 10033523502
UPRN 10033562431
UPRN 10033562597
Show all 10 rows
UPRN 10033562598
UPRN 10033572036
UPRN 10033578715
UPRN 10033582804
UPRN 10033591486
UPRN 10033601532
UPRN 10033601533
Planning

What happened?

200 planning applications across the postcode; 128 approved of 146 decided (87.7%). Latest 30 shown.

Reference
Proposal · address
Type
Outcome
Date · distance
Replacement of existing rear extension at first, second and third with a new rear extension (first to third floor level) with flat roof. Erection of an extension at rear ground floor level. Removal of the existing kitchen rooflight and extension of existing terrace at first floor level. Replacement of existing windows and French doors with new; and alterations to French door width at rear first floor level.
12 Chester Street London SW1X 7BB · premises record
Listed Building Consent Application
Pending
2026-05-01
Variation of Condition 1 and removal of Conditions 3, 4 and 9 of planning permission dated 24 July 2025 (RN 24/05883/FULL) (as amended by 26/00535/NMA dated 16 March 2026) for: replacement of existing rear extension at first, second and third with a new rear extension (first to third floor level) with flat roof. Erection of an extension at rear ground floor level. Removal of the existing kitchen rooflight and extension of existing terrace at first floor level. Replacement of existing windows and French doors with new; namely, to omit the approved basement, lightwell at rear lower ground floor and railings at rear ground floor; amendment to the French door width at rear first floor level.
12 Chester Street London SW1X 7BB · premises record
Full Planning Permission Application
Approved
2026-03-09
Installation of air conditioning units within an acoustic enclosure at roof level and replacement of the existing lead flat roof with a new lead flat roof.
12 Chester Street London SW1X 7BB · premises record
Listed Building Consent Application
Approved
2025-12-22
Installation of air conditioning units within an acoustic enclosure at roof level and replacement of the existing lead flat roof with a new lead flat roof.
12 Chester Street London SW1X 7BB · premises record
Full Planning Permission Application
Approved
2025-12-22
Details of brickwork repointing and cleaning specification and methodology pursuant to Condition 5 (i) of listed building consent dated 29 February 2024 (RN: 23/08042/LBC).
17 Chester Street London SW1X 7BB · premises record
Approval of Details (ADLBC)
Approved
2024-10-07
Details of brickwork repointing and cleaning specification and methodology pursuant to Condition 4 (i) of planning permission dated 29 February 2024 (RN: 23/08041/FULL).
17 Chester Street London SW1X 7BB · premises record
Approval of Details (Full PP)
Approved
2024-10-07
Excavation of a new basement level. Replacement of existing rear extension at first, second and third with a new rear extension (first to third floor level) with flat roof. Erection of an extension at rear ground floor level. Removal of the existing kitchen rooflight and extension of existing terrace at first floor level. Replacement of existing windows and French doors with new. Associated internal alterations including installation of a lift between basement to third floor level.
12 Chester Street London SW1X 7BB · premises record
Listed Building Consent Application
Approved
2024-08-22
Excavation of a new basement level. Replacement of existing rear extension at first, second and third with a new rear extension (first to third floor level) with flat roof. Erection of an extension at rear ground floor level. Removal of the existing kitchen rooflight and extension of existing terrace at first floor level. Replacement of existing windows and French doors with new.
12 Chester Street London SW1X 7BB · premises record
Full Planning Permission Application
Approved
2024-08-22
Details of new windows and external doors, acoustic enclosure, cavity drain system, details of FCUs and any changes to floor levels/build up purusant to condition 5 (ii, iii, iv, v and vi) of listed building consent dated 29 February 2024 (RN: 23/08042/LBC).
17 Chester Street London SW1X 7BB · premises record
Approval of Details (ADLBC)
Approved
2024-08-01
Details of new windows and external doors, acoustic enclosure and supplementary acoustic report purusant to conditions 4 (ii and iii) and 8 of planning permission dated 29 February 2024 (RN: 23/08041/FULL).
17 Chester Street London SW1X 7BB · premises record
Approval of Details (Full PP)
Approved
2024-08-01
Replacement of existing rear extension at first, second and third with a new rear extension (first to third floor level) with flat roof. Erection of an extension at rear ground floor level. Removal of the existing kitchen rooflight and extension of existing terrace at first floor level. Replacement of existing windows and French doors with new; and alterations to French door width at rear first floor level.
12 Chester Street London SW1X 7BB · premises record
Pending
2026-05-01
More
Listed Building Consent Application
Variation of Condition 1 and removal of Conditions 3, 4 and 9 of planning permission dated 24 July 2025 (RN 24/05883/FULL) (as amended by 26/00535/NMA dated 16 March 2026) for: replacement of existing rear extension at first, second and third with a new rear extension (first to third floor level) with flat roof. Erection of an extension at rear ground floor level. Removal of the existing kitchen rooflight and extension of existing terrace at first floor level. Replacement of existing windows and French doors with new; namely, to omit the approved basement, lightwell at rear lower ground floor and railings at rear ground floor; amendment to the French door width at rear first floor level.
12 Chester Street London SW1X 7BB · premises record
Approved
2026-03-09
More
Full Planning Permission Application
Installation of air conditioning units within an acoustic enclosure at roof level and replacement of the existing lead flat roof with a new lead flat roof.
12 Chester Street London SW1X 7BB · premises record
Approved
2025-12-22
More
Listed Building Consent Application
Show all 10 rows
Installation of air conditioning units within an acoustic enclosure at roof level and replacement of the existing lead flat roof with a new lead flat roof.
12 Chester Street London SW1X 7BB · premises record
Approved
2025-12-22
More
Full Planning Permission Application
Details of brickwork repointing and cleaning specification and methodology pursuant to Condition 5 (i) of listed building consent dated 29 February 2024 (RN: 23/08042/LBC).
17 Chester Street London SW1X 7BB · premises record
Approved
2024-10-07
More
Approval of Details (ADLBC)
Details of brickwork repointing and cleaning specification and methodology pursuant to Condition 4 (i) of planning permission dated 29 February 2024 (RN: 23/08041/FULL).
17 Chester Street London SW1X 7BB · premises record
Approved
2024-10-07
More
Approval of Details (Full PP)
Excavation of a new basement level. Replacement of existing rear extension at first, second and third with a new rear extension (first to third floor level) with flat roof. Erection of an extension at rear ground floor level. Removal of the existing kitchen rooflight and extension of existing terrace at first floor level. Replacement of existing windows and French doors with new. Associated internal alterations including installation of a lift between basement to third floor level.
12 Chester Street London SW1X 7BB · premises record
Approved
2024-08-22
More
Listed Building Consent Application
Excavation of a new basement level. Replacement of existing rear extension at first, second and third with a new rear extension (first to third floor level) with flat roof. Erection of an extension at rear ground floor level. Removal of the existing kitchen rooflight and extension of existing terrace at first floor level. Replacement of existing windows and French doors with new.
12 Chester Street London SW1X 7BB · premises record
Approved
2024-08-22
More
Full Planning Permission Application
Details of new windows and external doors, acoustic enclosure, cavity drain system, details of FCUs and any changes to floor levels/build up purusant to condition 5 (ii, iii, iv, v and vi) of listed building consent dated 29 February 2024 (RN: 23/08042/LBC).
17 Chester Street London SW1X 7BB · premises record
Approved
2024-08-01
More
Approval of Details (ADLBC)
Details of new windows and external doors, acoustic enclosure and supplementary acoustic report purusant to conditions 4 (ii and iii) and 8 of planning permission dated 29 February 2024 (RN: 23/08041/FULL).
17 Chester Street London SW1X 7BB · premises record
Approved
2024-08-01
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 40 premises each one covers.

Designation
Coverage
Article 4 Direction Area
Article 4 Basement Development Permitted Rights Removed · reference 23/00006/REG_4 · covers 40 of 40 premises. Some normally permitted changes may require planning permission.
Conservation Area
Belgravia · reference CONARA/1350 · covers 34 of 40 premises. Demolition, alterations, trees and design are subject to additional heritage controls.
Central Activities Zone
Named designation not supplied · reference CAZ00000005 · covers 6 of 40 premises. London Plan policies for the Central Activities Zone may apply.
Article 4 Direction Area
Article 4 Basement Development Permitted Rights Removed · reference 23/00006/REG_4 · covers 40 of 40 premises. Some normally permitted changes may require planning permission.
Conservation Area
Belgravia · reference CONARA/1350 · covers 34 of 40 premises. Demolition, alterations, trees and design are subject to additional heritage controls.
Central Activities Zone
Named designation not supplied · reference CAZ00000005 · covers 6 of 40 premises. London Plan policies for the Central Activities Zone may apply.
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 8 applications
Case officer on 7 applications
Case officer on 4 applications
Case officer on 2 applications
Case officer on 2 applications
Case officer on 2 applications
Case officer on 1 application
Case officer on 1 application
Case officer on 1 application
Case officer on 8 applications
Case officer on 7 applications
Case officer on 4 applications
Show all 9 rows
Case officer on 2 applications
Case officer on 2 applications
Case officer on 2 applications
Case officer on 1 application
Case officer on 1 application
Case officer on 1 application
Development

What could it become?

Planning precedent200 applications and 202 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy15 EPC records; ratings C: 5, D: 6, E: 3, F: 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 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.

3 intent signals recorded in this postcode
Price decline · EPC F/G · Long hold
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Boundary: OS Postcode Unit areas (Ordnance Survey), 2026-08-14. Planning records: canonical stage2. EPC: EPC register. Premises: OS AddressBase / UPRN.
SW1X 7BB, Westminster: planning and property history | Planning Atlas