40 Radnor Walk, London, SW3 4BN Data via plota.co.uk

PP/25/05107 - Planning Permission Approved

Proposal

Lowering of existing lower ground floor level and provision of front pavement light to provide habitable space at this level. Proposed two storey rear infill extension. Provision of terrace above existing rear wing. Removal of chimney at/on boundary with no. 38, and alterations to rear fenestration. Data via plota.co.uk

Track application Save this application and get an email when its status or decision changes. Alerts nearby Get email alerts for new planning applications near this address.
View original council record ↗Last checked

Application progress

✓
Received
18 Aug 2025
✓
Approved
17 Mar 2026

Approved on 17 Mar 2026 · Last checked 23 Oct 2026

Documents

View the documents on the council's website ↗

Associated applications 2

Site constraints 11

Royal Hospital 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 Named permitted development rights are withdrawn here.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.
In flood zones plus climate change
Inside the extent flood zones 2 and 3 could reach with climate change: the Central allowance for the 2080s on rivers, the Upper End allowance for sea level rise to 2125. From the sea. Defences are not counted.
The Environment Agency flood map for planning. Councils use it to decide when a flood risk assessment and the sequential test are needed. It is indicative and does not show whether a particular property will flood.
Flood map ↗
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 ↗
National infrastructure project about 293 m away: Thames Tideway Tunnel
The site is about 293 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, about 637 m).
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 ↗
5 listed buildings within 150 m of the postcode pin
Nearest: 9-37, Shawfield Street Sw3, Grade II, about 18 m from the postcode pin · 5 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 5 with distances
Historic England ↗
Also on the record
Registered park or garden about 227 m away: ROYAL HOSPITAL, CHELSEA and RANELAGH GARDENS; Inside the Kensington and Chelsea built-up area; Public transport access: PTAL 4 (good), TfL 2023, for the 100 m square; Town centre about 87 m away: King's Road (east).
Not affected
Outside flood zones 2 and 3 · Not green belt · No scheduled monument at the site

Checked on 2 November 2026. The pin for this application is the centre of its postcode rather than the building, so distances to nearby designations are measured from the postcode and can be out by the width of the postcode area. 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.

Work with planning data?

Every application in Kensington and Chelsea - and every UK council - as a live feed, an API, or a bulk CSV export.

About Plota's data service

Other new applications on this street

20 Oct 2026Pending

30 Radnor Walk, London, SW3 4BN

Prune 1 x Sycamore tree in rear garden.

ARB/26/05662
3 Jun 2026Approved

34 Radnor Walk, London, SW3 4BN

Erection of a rear extension at second floor level, reduction of existing roof t...

PP/26/02929
25 Sept 2026Approved

Ground Floor, 15 Radnor Walk, London, SW3 4BP

Installation of retractable awning to front elevation, manually operated by hand...

PP/26/05161

Nearby new applications

3 Nov 2026Pending

21 Oakley Gardens, London, SW3 5QH

FELL 1 x Cherry (front)

ARB/26/05887
2 Nov 2026Pending

Ground Floor, 69 King's Road, London, SW3 4NT

Installation of new serving hatch to the Smith Street elevation, comprising an a...

PP/26/05711
30 Oct 2026Pending

Royal Hospital, Royal Hospital Road, London, SW3 4SR

FELL and prune various as specified

ARB/26/05894
29 Oct 2026Pending

Flat 2, 11 Chelsea Embankment, London, SW3 4LE

Details required by condition 2a-g (submission of details) of listed building co...

CON/26/05895
29 Oct 2026Pending

241-245 King's Road, London, SW3 5EL

Installation of 2no. externally illuminated fascia signs and 1no. non-illuminate...

CA/26/05898
28 Oct 2026Pending

11 Redburn Street, London, SW3 4DA

To install meter bank in left vault to feed 2 meters, for ground floor and 1st f...

PP/26/04869

Important details

Council
Kensington and Chelsea
Application type
Planning Permission
Postcode
SW3 4BN
Received
18 Aug 2025
Validated
18 Aug 2025
Ward
Royal Hospital
Case officer
Show
Target decision
13 Oct 2025
Decision
Granted
Decision date
17 Mar 2026
Applicant
Show

How this decision compares

Decided in 211 days from validation, 133 days slower than Kensington and Chelsea's median of 78 for full applications. Approved, as 94% of full applications here are.

36%decided within 8 weeks
94%approved
1,540decided in the last year

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

Consultation & key dates

Comments by
26 Sept 2025

Historical activity at this location

27 previous applications on record - archival context, not part of the live application.

This property

Previous applications at this address

2023 Approved
Proposed two storey rear infill extension. Provision of terrace above existing rear wing…
PP/23/02394
2022 Approved
Lowering of existing lower ground floor level and provision of front pavement light to pr…
PP/22/07330
Within ~100m

Nearby activity

2025
38 Smith Terrace, London, SW3 4DH
Demolition and rebuild of dwellinghouse behind retained fa?ade including removal and repl…
PP/25/06735
2025 Approved
20 Tedworth Square, London
Prune 2 x Maple (rear)
ARB/25/06062
2025
22 Radnor Walk, London, SW3 4BN
Creation of a single-storey basement beneath existing dwelling, extending to less than 50…
PP/25/06120
2025
49 Radnor Walk, London, SW3 4BT
Extension to rear at first and second floor to add an extra en-suite at first floor and a…
PP/25/04860
2025 Approved
4 Redesdale Street, London, SW3 4BH
Installation of 2no. roof mounted air conditioning units and changes to rear facing (nort…
PP/25/01905
2024 Withdrawn
4 Redesdale Street, LONDON, SW3 4BH
Installation of 4no. roof mounted air conditioning units, 9no. solar panels on upper pitc…
PP/25/00078
2024 Approved
42 Radnor Walk, London, SW3 4BN
Excavation of single storey basement with associated front and rear lightwell. Creation o…
PP/24/06234
2024 Approved
28 Smith Terrace, London, SW3 4DH
Reinstatement of section of party wall
PP/24/07727
2024 Approved
59 Radnor Walk, London, SW3 4BT
Variation of condition 2 (compliance with approved drawings) of planning permission 23/08…
PP/24/07384
2024 Withdrawn
59 Radnor Walk, LONDON, SW3 4BT
Variation of Condition 2 (Compliance with approved drawings) of planning permission PP/23…
PP/24/06465
2024 Approved
4 Redesdale Street, LONDON, SW3 4BH
Single storey side infill extension and replacement single storey rear extension at lower…
PP/24/05290
2024 Approved
60 Radnor Walk, LONDON, SW3 4BN
Demolition behind retained faτade; Lowering of underpavement and introduction of sash win…
PP/24/03686
2024 Approved
41 Flood Street, LONDON, SW3 5ST
Provision of two air condensing units within an acoustic enclosure on main roof. Removal…
PP/24/02670
2024 Approved
28 Smith Terrace, LONDON, SW3 4DH
Replacement of 3no. rear windows within extension.
PP/24/01493
2024 Approved
14 Redesdale Street, LONDON, SW3 4BH
Prune 1 x Magnolia Grandiflora in rear garden.
ARB/24/02139
2023 Approved
41 Flood Street, LONDON, SW3 5ST
Alterations to existing rear outrigger on ground level, and replacement single-story cons…
PP/23/08422
2024 Approved
41 Flood Street, LONDON, SW3 5ST
Extension to existing rear outrigger on second level with internal alterations and additi…
PP/24/00110
2024 Approved
60 Radnor Walk, LONDON, SW3 4BN
Construction of a basement beneath property and the rear extension (approved under ref. P…
PP/24/00076
2023 Approved
36 Shawfield Street, LONDON, SW3 4BD
Conversion of existing garage to residential accommodation, construction of rear dormer w…
PP/23/08457
2023 Approved
60 Radnor Walk, LONDON, SW3 4BN
Lowering of underpavement vaults to provide habitable accommodation including introductio…
PP/23/06069
2018 Withdrawn
40 Shawfield Street, LONDON, SW3 4BD
Installation and addition of two roof lights to front roof elevation (Retrospective appli…
PP/18/00953
2018 Approved
26 Shawfield Street, LONDON, SW3 4BD
Provision of air-conditioning unit to be enclosed within existing rooftop tank housing wi…
PP/18/00877
2018 Withdrawn
40 Shawfield Street, LONDON, SW3 4BD
Folding garage door to be recessed by 300mm internally at front elevation to allow enough…
PP/18/00549
2018 Approved
Twenty Seven and a Half, Smith Terrace, LONDON, SW3 4DH
Demolition of the existing building and rebuilding to the same massing with ground floor…
PP/18/00306
2017 Approved
6 Shawfield Street, LONDON, SW3 4BD
Erection of rear extension in place of conservatory at lower ground floor level
PP/17/07909
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