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1 Upper Grotto Road Twickenham TW1 4NG

23/0463/PS192Section 192 Permitted DevelopmentApproved
Outline / PiP

Approved on 17 April 2023

Delegated (officer decision)

Approximate location: the centre of the postcode, not the exact property.

Proposal

Hip to gable roof extension, construction of rear dormer to main roof and rear dormer on outrigger. Rooflights to front roofslope (amended description).

Received
22 February 2023
Decision level
Delegated (officer decision)
Ward
SOUTH TWICKENHAM WARD
  1. Received22 Feb
  2. Validated22 Feb
  3. Consult.
  4. Target19 Apr
  5. Decided17 Apr

Decided in 54 days (council typically 49)

About this application

This is an outline application for a dormer extension at 1 Upper Grotto Road Twickenham TW1 4NG. Richmond has handled 2,078 applications of this type. This one was decided in 54 days, 5 days longer than Richmond's typical decision time. There has been 1 other application at this address. We hold 1,488 applications in total for the TW1 postcode area.

87% of outline applications at London Borough of Richmond upon Thames were approved. Across all application types, the council typically decides in about 7 weeks (median).

Based on decided applications received in the last 3 years.Planning something similar? See what gets approved on your street

Application details

Postcode
TW1 4NG
Application type
Section 192 Permitted Development
Scale / size
Small

Planning application dates

Date validated
22 February 2023
Target decision date
19 April 2023

Applicant and agent

Agent address
Mark Smith 7 Greenwood Cottages Lawson Way Ascot SL5 0LL United Kingdom

Planning decision

Statutory period
56 days

Additional information

Documents
8

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations at the address point. Ones next to the site may also apply.

  • Flood zone 1: Low probability (rivers and sea)

Not published by this council, so not checked: Article 4 directions. Ask the council if these matter.

Possibly incomplete for this council: tree preservation orders.

Also checked, none recorded (22)

flood storage areas, conservation areas, listed buildings, green belt, scheduled monuments, World Heritage Sites, World Heritage Site buffer zones, registered parks and gardens, registered battlefields, Heritage at Risk entries, nutrient neutrality catchments, national parks, National Landscapes, SSSIs, Special Areas of Conservation, Special Protection Areas, Ramsar sites, ancient woodland, national nature reserves, local nature reserves, heritage coasts and brownfield registers.

A guide only, from official open data; it is not a planning search. Flood zones cover rivers and sea, not surface water.

Data © Crown copyright and others · sources and licences

Contains public sector information from planning.data.gov.uk (MHCLG and local planning authorities), licensed under the Open Government Licence v3.0. © Crown copyright and database right 2026.

© Historic England 2026. Contains Ordnance Survey data © Crown copyright and database right 2026. The Historic England GIS Data contained in this material was obtained on 2026-11-03. The most publicly available up to date Historic England GIS Data can be obtained from HistoricEngland.org.uk.

© Natural England copyright. Contains Ordnance Survey data © Crown copyright and database right 2026.

© Environment Agency copyright and/or database right 2026. All rights reserved. Flood Map for Planning, Open Government Licence v3.0.

Contains Ordnance Survey data © Crown copyright and database right 2026.

Source: Office for National Statistics licensed under the Open Government Licence v.3.0. Contains OS data © Crown copyright and database right 2026.

Planning history at this site

1 other application at this property, newest first.

  1. 2023
    25 Apr

    Pitched roof over rear two storey outrigger

    ApprovedHouseholder23/1097/HOT

Source: Richmond

Contains public sector information from the Planning London Datahub, licensed under the Open Government Licence v3.0.

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