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First Floor and Second Floor Flat, 12 Onslow Road, Richmond TW10 6QF

PA26/0551Full ApplicationAwaiting decision
Full
Approximate location: the centre of the postcode, not the exact property.

Proposal

Internal amalgamation of the existing first and second-floor flats to form a single three-bedroom maisonette, including conservation-led window replacement.

Received
18 February 2026
Decision due
27 April 2026
Ward
South Richmond Ward [STR]
  1. Received18 Feb
  2. Validated2 Mar
  3. Consult.3 Apr
  4. Target27 Apr
  5. Decided

Have your say

Comments close on 3 April.

View on the council's site

About this application

This is a full planning application for window replacement at First Floor and Second Floor Flat, 12 Onslow Road, Richmond TW10 6QF. Richmond has handled 4,063 applications of this type. It has been with the council since 18 February 2026 and is still awaiting a decision. The site is in the St Matthias conservation area. There are no previous applications recorded at this address. In the past year there have been 367 applications across South Richmond Ward [STR]. We hold 2,190 applications in total for the TW10 postcode area.

83% of full 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
TW10 6QF
Application type
Full Application
Scale / size
Small
District
South

Planning application dates

Date validated
2 March 2026
Consultation expiry
3 April 2026
Consultation end
3 April 2026
Application expires
26 March 2026

Planning decision

Statutory period
56 days

Publicity

First advertised
13 March 2026
Site notice start
13 March 2026

Additional information

Planning Portal ID
PP-14382020
UPRN
MAN000000000827939
Documents
25

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

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

  • Conservation area: St Matthias
  • 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 (21)

flood storage 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.

Source: Richmond

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

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