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12 Palmer Avenue North Cheam SM3 8EG

DM2025/01344Certificate of Proposed UseApproved
Outline / PiP

Approved on 11 December 2025

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 alterations to existing roofline, a dormer extension at rear and rooflights to front roofslope.

Received
27 October 2025
Ward
Worcester Park South
  1. Received27 Oct
  2. Validated27 Oct
  3. Consult.
  4. Target22 Dec
  5. Decided11 Dec

Decided in 45 days (council typically 56)

About this application

This is an outline application for a dormer extension at 12 Palmer Avenue North Cheam SM3 8EG. Sutton has handled 404 applications of this type. This one was decided in 45 days, 11 days quicker than Sutton's typical decision time. The site is in a conservation area. There are no previous applications recorded at this address. In the past year there have been 59 applications across Worcester Park South. We hold 511 applications in total for the SM3 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
SM3 8EG
Application type
Certificate of Proposed Use
Scale / size
Small

Planning application dates

Date validated
27 October 2025
Target decision date
22 December 2025

Applicant and agent

Agent
happy building
Agent address
12 station way sutton SM3 8SW United Kingdom

Planning decision

Statutory period
56 days

Additional information

Comments
0
Documents
10
Constraints
4

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • 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. 2025
    27 Oct

    Erection of a single storey side extension.

    ApprovedHouseholderDM2025/01343

Source: Sutton

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

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