Postcode record · Westminster
SW1X 9ET.
SW1X 9ET has 30 known premises and 43 planning records — 30 approved of 36 decided (83.3%). 4 EPC records.
Postcode SW1X 9ET · boundary not held, centred on the postcodeApprovedRefusedOther43 exact43 on the map — every match
At a glance · this postcodeWestminster profile →
30
Premises
known addresses (UPRNs)
43
Applications
36 decided
83.3%
Approval rate
30 approved · 6 refused
4
EPC records
ratings C 3 · E 1
43
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 9ET has 30 known premises and 43 planning records — 30 approved of 36 decided (83.3%). 4 EPC records.
Premises (18 of 30 shown)
Name
Details
UPRN 10033564669
UPRN 10033564670
UPRN 10033564671
UPRN 10033564672
UPRN 10033564673
UPRN 10033564674
UPRN 10033564675
UPRN 10033564676
UPRN 10033568479
UPRN 10033575672
UPRN 10033564669
UPRN 10033564670
UPRN 10033564671
Show all 10 rows
UPRN 10033564672
UPRN 10033564673
UPRN 10033564674
UPRN 10033564675
UPRN 10033564676
UPRN 10033568479
UPRN 10033575672
Planning
What happened?
43 planning applications across the postcode; 30 approved of 36 decided (83.3%). Latest 30 shown.
Reference
Proposal · address
Type
Outcome
Date · distance
Internal alterations on all floor levels and repair and redecoration to facades.
2 Lowndes Street London SW1X 9ET · premises record
Listed Building Consent Application
Approved
2023-09-25
Internal alterations at third and fourth floor levels (retrospective application).
Third Floor And Fourth Floor Maisonette 4 Lowndes Street London SW1X 9ET · premises record
Listed Building Consent Application
Approved
2022-08-05
Details of new windows and revised detail of dormer pursuant to Condition 4(ii) and 4(iii) of planning permission dated 11 January 2019 (RN: 18/05728).
Fourth Floor Flat 6 Lowndes Street London SW1X 9ET · premises record
Approval of Details (Full PP)
Approved
2020-10-23
Details of new rooflights pursuant to Condition 4(i) of planning permission dated 11 January 2019 (RN: 18/05728).
Fourth Floor Flat 6 Lowndes Street London SW1X 9ET · premises record
Approval of Details (Full PP)
Approved
2020-10-23
Details of the location of any ventilation grilles or similar associated with the internal fan coil units; the appearance of the proposed grilles or similar; and floor plans showing where existing original floorboards or floor structure is in place and floor plans showing where underfloor heating is proposed pursuant to Condition 4(i), (ii) and (iii) of listed building consent dated 11 January 2019 (RN: 18/05729/LBC).
Fourth Floor Flat 6 Lowndes Street London SW1X 9ET · premises record
Approval of Details (ADLBC)
Approved
2020-10-23
Details of (i) any new rooflights, showing the relationship to the roof structure and any historic roof structure proposed for removal; (ii) all new windows; and (iii) a revised detail of the dormer pursuant to Condition 4 of planning permission dated 11 January 2019 (RN: 18/05728/FULL).
6 Lowndes Street London SW1X 9ET · premises record
Approval of Details (Full PP)
Refused
2020-09-16
Details of any ventilation grilles or similar associated with the internal fan coil units; the proposed grilles; where existing original floorboards or floor structure is in place and where underfloor heating is proposed; and revised consistent drawings of chimneypiece and fireplaces pursuant to Condition 4 of listed building consent dated 11 January 2019 (RN: 18/05729/LBC).
6 Lowndes Street London SW1X 9ET · premises record
Approval of Details (ADLBC)
Refused
2020-09-16
Removal of mezzanine above kitchen and associated works.
6 Lowndes Street London SW1X 9ET · premises record
Listed Building Consent Application
Approved
2019-04-11
Removal of mezzanine above kitchen and associated works. (Linked to 19/02817/LBC)
6 Lowndes Street London SW1X 9ET · premises record
Full Planning Permission Application
Withdrawn
2019-04-11
Installation of external AC condenser with acoustic screen on roof level and internal fan coil units, internal refurbishment and replacement of existing windows and rooflights. . [Flat 6].
Fourth Floor Flat 6 Lowndes Street London SW1X 9ET · premises record
Listed Building Consent Application
Approved
2018-07-06
Internal alterations on all floor levels and repair and redecoration to facades.
2 Lowndes Street London SW1X 9ET · premises record
Approved
2023-09-25
More
Listed Building Consent Application
Internal alterations at third and fourth floor levels (retrospective application).
Third Floor And Fourth Floor Maisonette 4 Lowndes Street London SW1X 9ET · premises record
Approved
2022-08-05
More
Listed Building Consent Application
Details of new windows and revised detail of dormer pursuant to Condition 4(ii) and 4(iii) of planning permission dated 11 January 2019 (RN: 18/05728).
Fourth Floor Flat 6 Lowndes Street London SW1X 9ET · premises record
Approved
2020-10-23
More
Approval of Details (Full PP)
Show all 10 rows
Details of new rooflights pursuant to Condition 4(i) of planning permission dated 11 January 2019 (RN: 18/05728).
Fourth Floor Flat 6 Lowndes Street London SW1X 9ET · premises record
Approved
2020-10-23
More
Approval of Details (Full PP)
Details of the location of any ventilation grilles or similar associated with the internal fan coil units; the appearance of the proposed grilles or similar; and floor plans showing where existing original floorboards or floor structure is in place and floor plans showing where underfloor heating is proposed pursuant to Condition 4(i), (ii) and (iii) of listed building consent dated 11 January 2019 (RN: 18/05729/LBC).
Fourth Floor Flat 6 Lowndes Street London SW1X 9ET · premises record
Approved
2020-10-23
More
Approval of Details (ADLBC)
Details of (i) any new rooflights, showing the relationship to the roof structure and any historic roof structure proposed for removal; (ii) all new windows; and (iii) a revised detail of the dormer pursuant to Condition 4 of planning permission dated 11 January 2019 (RN: 18/05728/FULL).
6 Lowndes Street London SW1X 9ET · premises record
Refused
2020-09-16
More
Approval of Details (Full PP)
Details of any ventilation grilles or similar associated with the internal fan coil units; the proposed grilles; where existing original floorboards or floor structure is in place and where underfloor heating is proposed; and revised consistent drawings of chimneypiece and fireplaces pursuant to Condition 4 of listed building consent dated 11 January 2019 (RN: 18/05729/LBC).
6 Lowndes Street London SW1X 9ET · premises record
Refused
2020-09-16
More
Approval of Details (ADLBC)
Removal of mezzanine above kitchen and associated works.
6 Lowndes Street London SW1X 9ET · premises record
Approved
2019-04-11
More
Listed Building Consent Application
Removal of mezzanine above kitchen and associated works. (Linked to 19/02817/LBC)
6 Lowndes Street London SW1X 9ET · premises record
Withdrawn
2019-04-11
More
Full Planning Permission Application
Installation of external AC condenser with acoustic screen on roof level and internal fan coil units, internal refurbishment and replacement of existing windows and rooflights. . [Flat 6].
Fourth Floor Flat 6 Lowndes Street London SW1X 9ET · premises record
Approved
2018-07-06
More
Listed Building Consent 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 30 premises each one covers.
Designation
Coverage
Article 4 Direction Area
Article 4 Basement Development Permitted Rights Removed · reference 23/00006/REG_4 · covers 30 of 30 premises. Some normally permitted changes may require planning permission.
Conservation Area
Belgravia · reference CONARA/1350 · covers 30 of 30 premises. Demolition, alterations, trees and design are subject to additional heritage controls.
Article 4 Direction Area
Article 4 Basement Development Permitted Rights Removed · reference 23/00006/REG_4 · covers 30 of 30 premises. Some normally permitted changes may require planning permission.
Conservation Area
Belgravia · reference CONARA/1350 · covers 30 of 30 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 8 applications
Applicant on 5 applications
Applicant on 1 application
Applicant on 1 application
Agent on 8 applications
Agent on 5 applications
Agent on 1 application
Agent on 1 application
Case officer on 7 applications
Case officer on 6 applications
Applicant on 8 applications
Applicant on 5 applications
Applicant on 1 application
Show all 10 rows
Applicant on 1 application
Agent on 8 applications
Agent on 5 applications
Agent on 1 application
Agent on 1 application
Case officer on 7 applications
Case officer on 6 applications
Development
What could it become?
Planning precedent43 applications and 43 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy4 EPC records; ratings C: 3, E: 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.
2 intent signals recorded in this postcode
Struggling director · Price decline
Subscribe to see the signals →Thinking about a project here?
How long would a planning application take here? →
Westminster's real decision times and approval rates, measured from the record — not the statutory target.
Why do applications around here get refused? →
The most common refusal grounds in Westminster, by year and scheme type — the risks to know before applying.
Boundary: OS Postcode Unit areas (Ordnance Survey), 2026-08-14. Planning records: canonical stage2. EPC: EPC register. Premises: OS AddressBase / UPRN.