3 Chesham Street, London, SW1X 8ND Data via plota.co.uk

PP/26/04529 - Planning Permission Approved
Extensions & alterations

Proposal

Alterations and improvements to existing property including replacement of front windows from uPVC to painted timber sash, removal of water tank and flue at roof level and extension to width of existing roof extension, alterations to rear elevation including removal of existing external staircase, provision extensions at first and second floor level and restoring existing brickwork through tinting existing bricks. Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
21 Aug 2026
✓
Validated
26 Aug 2026
✓
Approved
20 Oct 2026

Approved on 20 Oct 2026 · Last checked 21 Oct 2026

Documents

View the documents on the council's website ↗

Site constraints 9

Hans Town conservation area
Demolition needs planning permission and permitted development is restricted.
The council must give weight to preserving or enhancing the area's character and appearance. Not every council has published its boundaries as open data.
Council document ↗
Article 4 direction
Article 4 - No 100. Named permitted development rights are withdrawn here.
An Article 4 direction withdraws particular permitted development rights, so work that would normally need no application needs one here. Not every council has published its directions.
Tree preservation order
Consent is needed before work on protected trees.
Not every council has published its orders as open data, so no order shown is not proof there is none.
Air quality management area: Kensington and Chelsea AQMA
The council has declared the area as failing an air quality objective.
Schemes that add traffic, parking or combustion plant are assessed against the area's action plan and may need an air quality assessment.
Council record ↗
20 listed buildings within 150 m
Nearest: 26,27 and 28, Chesham Place Sw1, Grade II, 13 m away · 20 Grade II
The site itself is not listed. Listed building consent is needed for work that affects the special interest of a listed building, inside or out, on top of planning permission. Setting can be a consideration for buildings nearby; there is no fixed radius.
Show all 20 with distances
Historic England ↗
National infrastructure project 694 m away: Thames Tideway Tunnel
The site is 694 m from the project boundary. Waste water treatment, decided. The project page says whether consent was granted. Also within 2 km: London Strategic Heat Main Project (at pre-application, the site is inside its boundary).
Nationally significant infrastructure projects (power stations, electricity lines, pipelines, major roads and railways, harbours, airports and reservoirs) are consented by a Secretary of State under the Planning Act 2008, after an examination by the Planning Inspectorate, rather than by the council. The boundary is the one the Inspectorate consults on and can change as the scheme does. Projects are shown within 2 km of the site.
Planning Inspectorate project page ↗
Registered park or garden 98 m away: Cadogan Place
Its setting is a consideration for work nearby.
Registered parks and gardens, battlefields, world heritage sites and protected wrecks are designated heritage assets: harm needs clear and convincing justification.
Historic England ↗
Also on the record
Inside the Kensington and Chelsea built-up area; Public transport access: PTAL 6a (excellent), TfL 2023, for the 100 m square.
Not affected
Outside flood zones 2 and 3 · Not green belt · No scheduled monument at the site

Checked on 2 November 2026. Historic England, the Environment Agency, Natural England, the Planning Inspectorate, Transport for London (public transport access levels, Powered by TfL Open Data, OGL v3.0, contains OS data © Crown copyright and database right 2025) and council datasets, Open Government Licence. A boundary can run through a site and the council holds the definitive record: confirm with the council before relying on this.

Building

Floor area557 m² (5,995 sq ft)
Energy ratingE (54 out of 100), could reach C
PropertyMid-terrace house, 11 habitable rooms
BuiltBefore 1900
HeatingBoiler and radiators, mains gas
WallsSolid brick, as built, partial insulation (assumed)

From the energy performance certificate lodged in July 2025, the latest held for this property, matched to this application by its address. The building may have changed since. View the certificate

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Important details

Council
Kensington and Chelsea
Application type
Planning Permission
Postcode
SW1X 8ND
Received
21 Aug 2026
Validated
26 Aug 2026
Ward
Brompton and Hans Town
Case officer
Show
Target decision
21 Oct 2026
Decision
Granted
Decision date
20 Oct 2026
Applicant
Show

How this decision compares

Decided in 55 days from validation, 23 days faster than Kensington and Chelsea's median of 78 for extensions. Approved, as 95% of extensions here are.

35%decided within 8 weeks
95%approved
1,595decided in the last year

Plota live figures for extensions decided by Kensington and Chelsea in the last twelve months, from validation. Kensington and Chelsea decision record →

Consultation & key dates

Comments by
25 Sept 2026

Historical activity at this location

25 nearby applications on record - archival context, not part of the live application.

Within ~100m

Nearby activity

2025
52 Cadogan Place & 54 Cadogan Lane, London, SW1X
Proposed demolition and replacement with extensions at No.54 Cadogan Lane. New lower grou…
PP/26/00076
2025 Approved
Chalfont House, 19-21 Chesham Street, London, SW1X 8NG
Prune 9x various as specified
ARB/25/05684
2025 Approved
75 Eaton Place London SW1X 8DR
Amalgamation of nos.75 and 77 Eaton Place by creating a doorway at lower-ground floor lev…
25/06138/LBC
2025 Approved
Flat 3, Pembroke House, 7-9 Chesham Street, London, SW1X 8NE
Installation of A/C unit with acoustic enclosure on existing recessed rear balcony at fir…
PP/25/02705
2025
8 Chesham Street London SW1X 8DT
Demolition of existing lightwell stairs and repositioning of the the new stone steps on a…
25/03774/LBC
2025
8 Chesham Street London SW1X 8DT
Demolition of existing lightwell stairs and repositioning of the new stone steps on adjac…
25/03773/FULL
2025 Withdrawn
38 Cadogan Place, London, SW1X 9RX
Addition of sub-basement below rear extension; new stair from existing basement to new lo…
LB/25/00808
2025 Withdrawn
38 Cadogan Place, London, SW1X 9RX
Addition of sub-basement below rear extension; new stair from existing basement to new lo…
PP/25/00807
2025 Approved
55 Cadogan Lane, London, SW1X 9DT
Partial reconstruction of single-storey rear extension, including installation of sliding…
PP/25/02240
2025 Approved
4 Lyall Street London SW1X 8DW
Installation of passenger lift from lower ground to fifth floor level with raised platfor…
25/01989/LBC
2025 Approved
9 Pont Street, London, SW1X 9EJ
Variation of condition 6 (tables and chairs - limited period) of planning permission 22/0…
PP/25/01136
2025 Approved
Chalfont House, 19-21 Chesham Street, London SW1X 8NG
Prune 1 x Cherry (Prunus spp)(T1) in rear garden.
ARB/25/01008
2025
20 Chesham Place, London, SW1X 8HQ
Informal notification under Schedule 2, part 13, Class A of the Town and Country Planning…
NOT/25/00913
2024 Approved
7-9 Pont Street, London, SW1X 9EJ
Prune 1 x Japanese Cherry 'Kanzan' (front)
ARB/24/08003
2024 Approved
Flat 13 and 14, Chalfont House, 19-21 Chesham Street, London, SW1X 8NG
Replacement of single glazed Crittall windows with double glazed Crittall windows
PP/24/07351
2024 Approved
Flat 11, Chalfont House, 19-21 Chesham Street, LONDON, SW1X 8NG
Replacement single glazed Crittall windows with double glazed Crittall windows
PP/24/07169
2024
75 Eaton Place London SW1X 8DR
Internal alterations to partitions including amendments to the layout of spaces within th…
24/08438/LBC
2024 Approved
Flat 29, Chalfont House, 19-21 Chesham Street, LONDON, SW1X 8NG
Replacement of 3 windows within light well, with 3 double glazed Crittal style windows
PP/24/05273
2024 Approved
Flat 34 and 35, Chalfont House, 19-21 Chesham Street, LONDON, SW1X 8NG
Replacement of existing single glazed crittall windows with double glazed aluminium to ma…
PP/24/03318
2024 Approved
3 Chesham Close London SW1X 8DN
Erection of roof extension and external alterations.
24/03227/FULL
2018
Communication Station for Cell 98182, EE Ltd Site, 20 Chesham Place, LONDON, SW1X 8HQ
Removal of 3x antennas, to be replaced with 3x upgraded antennas, alongside ancillary equ…
NOT/18/00673
2017 Approved
Chesham House 30-31 Chesham Place London SW1X 8DL
Reinstatement of entrance doors and double portico to Chesham Place elevation.
17/06999/FULL
2017 Approved
Chesham House 30-31 Chesham Place London SW1X 8DL
Reinstatement of entrance doors and double portico to Chesham Place elevation. Internal a…
17/07000/LBC
2017 Withdrawn
Flat 21, Chalfont House, 19-21 Chesham Street, LONDON, SW1X 8NG
Construction of a two storey structure at ground floor and first floor levels to rear of…
PP/17/07112
2017 Approved
Flat 4, 17 Chesham Street, LONDON, SW1X 8ND
Replacement of one double-glazed, painted timber frame sash window to rear facade (at thi…
PP/17/05275
Kensington and Chelsea
Planning Authority Score
5.1/10
Average
#144 of 296 councils
Relevant to this application:
Householder decisions

Kensington and Chelsea ranks #174 out of 296 councils for householder decision speed. Householder applications are slightly more likely to be approved here (94%) than the national average (90%).

These figures are council-wide context, not a prediction for this application. View full council performance
Kensington and Chelsea decision statistics
Based on MHCLG data, the nine months to December 2025
93%
Overall approval rate
Above avg (87%) #58 of 296
94%
Householder approved
Above avg (90%) #110 of 296
61%
Decided in 8 weeks
Below avg (63%) #174 of 296
40%
Extended time limit
Below avg (41%) #152 of 296
94%
Minor dwellings approved
455 decided (1-9 homes)
87%
Change of use approved
53 decided
1,839
Total decisions
135 refused in the nine months to December 2025
Source: MHCLG planning statistics · See full council rankings

Freehold boundary: © Crown copyright and database rights 2026, HM Land Registry. Polygons © Crown copyright and database rights 2026 Ordnance Survey 100026316. Conditions of use

Energy performance: Energy performance certificates from the Energy Performance of Buildings Register, Ministry of Housing, Communities and Local Government. Contains public sector information licensed under the Open Government Licence v3.0. © Crown copyright 2026.