341 St Margarets Road Twickenham TW1 1PW Data via plota.co.uk

PA25/4392 - Section 192 Permitted Development Approved

Proposal

Installation of a single story timber clad garden building to be used as an art/ pottery studio. Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
9 Dec 2025
✓
Approved
14 Jan 2026

Approved on 14 Jan 2026 · Delegated Decision · Last checked 7 Oct 2026

Documents

View the documents on the council's website ↗

Site constraints 7

St Margaret's Estate 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 ↗
Air quality management area: Richmond 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 ↗
Habitat network: Network Enhancement Zone 2
Where habitat is joined up enough to work as a network. Context, not a constraint on its own.
Also on the record
Local nature reserve 384 m away: Isleworth Ait; National infrastructure project 291 m away: Expansion of Heathrow Airport (Third Runway), at pre-application; Inside the Richmond upon Thames built-up area; Public transport access: PTAL 1b (very poor), TfL 2023, for the 100 m square.
Not affected
Outside flood zones 2 and 3 · Not green belt · No listed building 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.

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Other new applications on this street

4 Nov 2026Pending

289 St Margarets Road Twickenham TW1 1PN

T1 & T2: Olives - Crown reduce the height by 30% (approx. 2.5m) ...

PA26/3769
26 Oct 2026Pending

44 St Margarets Road Twickenham TW1 2LW

Construction of L-shaped rear dormer with two Juliet balconies, hip to a gable ...

PA26/3609
16 Oct 2026Approved

297 St Margarets Road Twickenham TW1 1PN

FRONT GARDEN T1 Cherry (Prunus spp) Reduce back to previous reduction point

PA26/3491
29 Sept 2026

69, Flat 1, St Margarets Road, Twickenham, TW1 2LL

Construction of new rear extension. Integral reconfigurations. Removal of existi...

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Nearby new applications

4 Nov 2026Pending

289 St Margarets Road Twickenham TW1 1PN

T1 & T2: Olives - Crown reduce the height by 30% (approx. 2.5m) ...

PA26/3769
4 Nov 2026Pending

20, St Margarets Drive, Twickenham, TW1 1QN

T1 Eucalyptus tree to selectively thin removing heavier limbs to relieve canopy ...

PA26/3758
28 Oct 2026Pending

30, St Georges Road, Twickenham, TW1 1QR

Details pursuant to condition C12. BNG implementation (non-significant) of plann...

PA26/3683
27 Oct 2026Approved

17, Ailsa Road, Twickenham, TW1 1QJ

Erection of Garden room

PA26/3663
27 Oct 2026Pending

20 St Peters Road Twickenham TW1 1QX

construction of outdoor swimming pool.

PA26/3479
22 Oct 2026Pending

Garages Adjacent to,20 Byfield Road,Isleworth,TW7 7AF

Details of Condition 13 (Boundary treatment and landscaping drawing) submitted p...

P/2026/2993

Important details

Council
Richmond upon Thames
Application type
Section 192 Permitted Development
Postcode
TW1 1PW
Received
9 Dec 2025
Validated
9 Dec 2025
Ward
St. Margarets & North Twickenham Ward [SMN]
Case officer
Show
Target decision
3 Feb 2026
Decision
Granted Permission
Decision date
14 Jan 2026
Decision level
Delegated Decision
Applicant
Show
Agent
Green Retreats Ltd

How this decision compares

Decided in 36 days from validation, 8 days faster than Richmond upon Thames's median of 44 for lawful development certificates. Approved, as 90% of lawful development certificates here are.

89%decided within 8 weeks
90%approved
450decided in the last year

Plota live figures for lawful development certificates decided by Richmond upon Thames in the last twelve months, from validation. Richmond upon Thames decision record →

Consultation & key dates

Alt. reference
PP-14551417

Historical activity at this location

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

This property

Previous applications at this address

2020 Approved
Construction of rear dormer to facilitate loft conversion; addition of three front roof w…
20/0862/HOT
Within ~100m

Nearby activity

2025 Approved
355, St Margarets Road, Twickenham, TW1 1PW
T1 Contorted Willow Rear Garden: Fell in sections to ground level and treat the stump wit…
PA25/3961
2025 Approved
357 St Margarets Road Twickenham TW1 1PW
T1. Olive Tree Front Garden: Carry out a structural thinning by 20% to help create a tree…
PA25/3798
2025 Approved
9 Kilmorey Gardens Twickenham TW1 1PU
Back Garden (Left Boundary) T1: Eucalyptus tree - Fell to ground level Current height sta…
PA25/2959
2025 Approved
357 St Margarets Road Twickenham TW1 1PW
Removal of conservatory and rear stairs to garden and replace with a single storey brick…
PA25/2553
2025 Refused
35 Haliburton Road Twickenham TW1 1PD
Two storey side extension with roof lights on front and rear roof slopes following demoli…
PA25/1995
2025 Approved
294 St Margarets Road Twickenham TW1 1PR
The tree in question is a Magnolia tree which is located in the front garden of 294 St Ma…
PA25/1066
2025 Approved
355 St Margarets Road Twickenham TW1 1PW
T1. Cherry Front Garden: Reduce height by 1m to suitable junctions or growth points to im…
PA25/0131
2024 Approved
3 Heron Road Twickenham TW1 1PQ
Proposed bay window and first floor window to replace existing bow windows. Proposed exte…
24/2514/HOT
2023 Approved
28 Haliburton Road Twickenham TW1 1PF
Proposed rear extension with replacement pitched roof, three roof lights and new entrance…
23/3268/HOT
2023 Approved
3 Heron Road Twickenham TW1 1PQ
Alterations to a terraced house and existing ground floor rear extension to include new f…
23/3056/HOT
2023 Approved
18 Haliburton Road Twickenham TW1 1PF
Single-storey rear extension of a maximum of 3m to match the depth of the neighbour.
23/2675/HOT
2023 Approved
7 Kilmorey Gardens Twickenham TW1 1PU
T1 Olive (Olea europaea) Crown Reduction - Reducing the height and spread of the tree by…
23/T0580/TCA
2023 Approved
355 St Margarets Road Twickenham TW1 1PW
T3 Corkscrew Willow (Salix matsudana tortuosa) Reduce crown to the most recent previous r…
23/T0612/TCA
2023 Approved
343 St Margarets Road Twickenham TW1 1PW
Proposed single storey rear side infill extension
23/1522/HOT
2022 Approved
9 Heron Road Twickenham TW1 1PQ
L-shape rear dormer roof extensions. Rooflights to front elevation
22/3190/PS192
2021 Approved
298 St Margarets Road Twickenham TW1 1PR
Change of use from existing Class E retail floorspace to a Class C3 residential use incor…
21/4169/FUL
2022 Approved
335 St Margarets Road Twickenham TW1 1PW
Construction of an infill between two rear dormers to form one continuous dormer. Removal…
22/0135/HOT
2021 Approved
9 Kilmorey Gardens Twickenham TW1 1PU
Back Garden (Left Boundary) T1: Eucalyptus tree - Reduce height by 2m, reduce sides by 1m…
21/T1148/TCA
2021 Approved
349 St Margarets Road Twickenham TW1 1PW
T1 Apple - Re-Pollard back to old historic pollard points removing approximately 3-4m of…
21/T1048/TCA
2021 Refused
335 St Margarets Road Twickenham TW1 1PW
Construction of an infill between two rear dormers to form one continuous dormer.
21/3469/HOT
2016 Approved
52 Haliburton Road Twickenham TW1 1PF
Proposed loft conversion with 'L-Shaped' rear dormer roof extension and insertion of 2 no…
16/0626/PS192
2016 Approved
51 Haliburton Road Twickenham TW1 1PD
Proposed loft conversion with rear dormer roof extension and insertion of 3 No.velux wind…
16/0054/PS192
2016 Approved
51 Haliburton Road Twickenham TW1 1PD
Proposed single storey rear extension.
16/0055/HOT
2016 Approved
Land Adjacent To 1 Heron Road Twickenham TW1
Details pursuant to condition RD09 (Site Levels) of planning permission 09/1396/HOT dated…
09/1396/DD01
2016 Approved
51 Haliburton Road Twickenham TW1 1PD
Proposed single storey rear extension
C/2016/0303
Richmond upon Thames
Planning Authority Score
4.4/10
Below average
#182 of 296 councils
Relevant to this application:
Householder decisions

Richmond upon Thames ranks #130 out of 296 councils for householder decision speed. Richmond upon Thames is also one of the strictest councils - it refuses more householder applications than almost any other, with only 82% approved vs 90% nationally.

One of the strictest councils
only 82% approved vs 90% nationally
These figures are council-wide context, not a prediction for this application. View full council performance
Richmond upon Thames decision statistics
Based on MHCLG data, the year to March 2026
81%
Overall approval rate
Below avg (87%) #257 of 296
82%
Householder approved
Below avg (90%) #268 of 296
69%
Decided in 8 weeks
Above avg (63%) #130 of 296
35%
Extended time limit
Below avg (41%) #104 of 296
68%
Minor dwellings approved
181 decided (1-9 homes)
100%
Major dwellings approved
3 decided (10+ homes)
47%
Change of use approved
17 decided
1,888
Total decisions
358 refused in the year to March 2026
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