Postcode record · Kensington And Chelsea
SW1X 9DT.
SW1X 9DT has 10 known premises and 30 planning records — 19 approved of 20 decided (95%). 8 EPC records.
Postcode SW1X 9DT · boundary not held, centred on the postcodeApprovedRefusedOther30 on the map — every match
At a glance · this postcodeKensington And Chelsea profile →
10
Premises
known addresses (UPRNs)
30
Applications
20 decided
95%
Approval rate
19 approved · 1 refused
51 days
Median decision time
average 51 days · 28 dated decisions
8
EPC records
ratings C 3 · D 5
30
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 9DT has 10 known premises and 30 planning records — 19 approved of 20 decided (95%). 8 EPC records.
Premises
Name
Details
UPRN 217008720
UPRN 217008721
UPRN 217008722
UPRN 217008723
UPRN 217008724
UPRN 217008725
UPRN 217008726
UPRN 217008727
UPRN 217008728
UPRN 217008729
UPRN 217008720
UPRN 217008721
UPRN 217008722
Show all 10 rows
UPRN 217008723
UPRN 217008724
UPRN 217008725
UPRN 217008726
UPRN 217008727
UPRN 217008728
UPRN 217008729
Planning
What happened?
30 planning applications across the postcode; 19 approved of 20 decided (95%). Latest 30 shown.
Reference
Proposal · address
Type
Outcome
Date · distance
Prune
No objection
2026-05-18
Partial reconstruction of single-storey rear extension, including installation of sliding doors and partially glazed roof; replacement of garage door with timber doors incorporating clerestory windows to facilitate conversion of garage to utility and cycle storage; reinstatement of rear first floor window, replacing French doors behind Juliet balcony; and insertion of two rooflights to the sloped and flat sections of the rear main roof
55 Cadogan Lane, London, SW1X 9DT · premises record
Officer Jake Brown
Planning Permission
Approved
2025-03-28
Erection of single storey rear extension at ground floor with 3no sliding doors; insertion of 3no. Velux rooflights to rear elevation main roof section; conversion of garage to utiity room at ground floor and internal reconfigurations
59 Cadogan Lane, London, SW1X 9DT · premises record
Officer Aaron Lau
Planning Permission
Approved
2022-05-05
Construction of single storey rear extension
59 Cadogan Lane, London, SW1X 9DT · premises record
Officer Matthew Woodhead
Planning Permission
Approved
2020-01-14
Prune 1 x Amelanchier 'Lamarkii' (rear garden)
55 Cadogan Lane, London, SW1X 9DT · premises record
Prune
Approved
2019-11-04
Construction of rear single storey extension. ***WITHDRAWN***
59 Cadogan Lane, London, SW1X 9DT · premises record
Planning Permission
Withdrawn
2019-11-04
Details required by condition 3 (CTMP) of planning permission 15/05349 (Creation of basement and living space)
53 Cadogan Lane, London, SW1X 9DT · premises record
Discharge of Conditions
Approved
2017-06-01
****WITHDRAWN*** Variation of condition 2 (approved drawings) of planning permission 15/05348 (first floor conservatory to incorporate part glazed roof terrace with lift overrun enclosure and creation of basement living space) to form new terrace at first floor level accessed from bedroom 2; to install mild steel railings and flat glass skylight to ground floor extension, replace first floor bedroom 2 windows with French doors to facilitate terrace; to replace second floor bedroom 3 windows with French doors/new painted mild steel Juliet balconies (Amended Description)
51 Cadogan Lane, London, SW1X 9DT · premises record
Planning Permission
Withdrawn
2017-03-22
Details required by condition 8 (structural engineer appointment) of planning permission 15/05348 (First floor conservatory to incorporate part glazed roof terrace with lift overrun enclosure and creation of basement living space)
51 Cadogan Lane, London, SW1X 9DT · premises record
Discharge of Conditions
Approved
2017-02-13
Details required by condition 7 (CTMP) of planning permission 15/05348(First floor conservatory to incorporate part glazed roof terrace with lift overrun enclosure and creation of basement living space).
51 Cadogan Lane, London, SW1X 9DT · premises record
Discharge of Conditions
Approved
2016-12-22
No objection
2026-05-18
More
Prune
Partial reconstruction of single-storey rear extension, including installation of sliding doors and partially glazed roof; replacement of garage door with timber doors incorporating clerestory windows to facilitate conversion of garage to utility and cycle storage; reinstatement of rear first floor window, replacing French doors behind Juliet balcony; and insertion of two rooflights to the sloped and flat sections of the rear main roof
55 Cadogan Lane, London, SW1X 9DT · premises record
Officer Jake Brown
Approved
2025-03-28
More
Planning Permission
Erection of single storey rear extension at ground floor with 3no sliding doors; insertion of 3no. Velux rooflights to rear elevation main roof section; conversion of garage to utiity room at ground floor and internal reconfigurations
59 Cadogan Lane, London, SW1X 9DT · premises record
Officer Aaron Lau
Approved
2022-05-05
More
Planning Permission
Show all 10 rows
Construction of single storey rear extension
59 Cadogan Lane, London, SW1X 9DT · premises record
Officer Matthew Woodhead
Approved
2020-01-14
More
Planning Permission
Prune 1 x Amelanchier 'Lamarkii' (rear garden)
55 Cadogan Lane, London, SW1X 9DT · premises record
Approved
2019-11-04
More
Prune
Construction of rear single storey extension. ***WITHDRAWN***
59 Cadogan Lane, London, SW1X 9DT · premises record
Withdrawn
2019-11-04
More
Planning Permission
Details required by condition 3 (CTMP) of planning permission 15/05349 (Creation of basement and living space)
53 Cadogan Lane, London, SW1X 9DT · premises record
Approved
2017-06-01
More
Discharge of Conditions
****WITHDRAWN*** Variation of condition 2 (approved drawings) of planning permission 15/05348 (first floor conservatory to incorporate part glazed roof terrace with lift overrun enclosure and creation of basement living space) to form new terrace at first floor level accessed from bedroom 2; to install mild steel railings and flat glass skylight to ground floor extension, replace first floor bedroom 2 windows with French doors to facilitate terrace; to replace second floor bedroom 3 windows with French doors/new painted mild steel Juliet balconies (Amended Description)
51 Cadogan Lane, London, SW1X 9DT · premises record
Withdrawn
2017-03-22
More
Planning Permission
Details required by condition 8 (structural engineer appointment) of planning permission 15/05348 (First floor conservatory to incorporate part glazed roof terrace with lift overrun enclosure and creation of basement living space)
51 Cadogan Lane, London, SW1X 9DT · premises record
Approved
2017-02-13
More
Discharge of Conditions
Details required by condition 7 (CTMP) of planning permission 15/05348(First floor conservatory to incorporate part glazed roof terrace with lift overrun enclosure and creation of basement living space).
51 Cadogan Lane, London, SW1X 9DT · premises record
Approved
2016-12-22
More
Discharge of Conditions
Building control
Building-control records are not yet collected for Kensington And Chelsea — 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 10 premises each one covers.
Designation
Coverage
Article 4 Direction Area
Article 4 - No 100 · reference 79 · covers 10 of 10 premises. Some normally permitted changes may require planning permission.
Tree Preservation Zone
Named designation not supplied · reference 21 · covers 10 of 10 premises. Protected-tree works may require consent or formal notice.
Conservation Area
Hans Town · reference 21 · covers 10 of 10 premises. Demolition, alterations, trees and design are subject to additional heritage controls.
Article 4 Direction Area
Article 4 - No 100 · reference 79 · covers 10 of 10 premises. Some normally permitted changes may require planning permission.
Tree Preservation Zone
Named designation not supplied · reference 21 · covers 10 of 10 premises. Protected-tree works may require consent or formal notice.
Conservation Area
Hans Town · reference 21 · covers 10 of 10 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 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 1 application
Case officer on 1 application
Show all 4 rows
Case officer on 1 application
Development
What could it become?
Planning precedent30 applications and 30 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy8 EPC records; ratings C: 3, D: 5.
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.
Boundary: OS Postcode Unit areas (Ordnance Survey), 2026-08-14. Planning records: canonical stage2. EPC: EPC register. Premises: OS AddressBase / UPRN.