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25 Strathearn Road Sutton SM1 2RS

DM2026/00885Certificate of Proposed UseApproved
Outline / PiP

Approved on 16 September 2026

Approximate site (title boundary)
Boundary © HM Land Registry, © Ordnance Survey · details

This information is subject to Crown copyright and database rights 2026 and is reproduced with the permission of HM Land Registry. The polygons (including the associated geometry, namely x, y co-ordinates) are subject to Crown copyright and database rights 2026 Ordnance Survey AC0000851063. Conditions of use.

Proposal

Conversion of loft space involving a dormer extension at rear.

Received
22 July 2026
Ward
Sutton West & East Cheam
Agent
Arkiplan Architectural Ltd
  1. Received22 Jul
  2. Validated22 Jul
  3. Consult.
  4. Target
  5. Decided16 Sep

Decided in 56 days (council typically 56)

About this application

This is an outline application for a dormer extension at 25 Strathearn Road Sutton SM1 2RS. Sutton has handled 404 applications of this type. This one was decided in 56 days. The site is in a conservation area. There have been 2 other applications at this address. In the past year there have been 83 applications across Sutton West & East Cheam. We hold 845 applications in total for the SM1 postcode area.

82% of outline applications at London Borough of Sutton were approved. Across all application types, the council typically decides in about 8 weeks (median).

Based on decided applications received in the last 3 years.See what's approved near your address

Application details

Postcode
SM1 2RS
Application type
Certificate of Proposed Use
Scale / size
Small

Planning application dates

Date validated
22 July 2026

Applicant and agent

Agent
Arkiplan Architectural Ltd
Architect profile
ARKIPLAN ARCHITECTURAL LIMITED
Agent address
Lychett House, 13 Freeland Park Wareham Road Poole BH16 6FA GB

Additional information

Comments
0
Documents
7
Constraints
13

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Brownfield land register: Sutton West Centre, Robin Hood LaneRegister site at or near this address · +1 more
  • 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, 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 and heritage coasts.

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: Sutton

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

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