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48 Mount Park Carshalton SM5 4PS

DM2026/00270Certificate of Proposed UseApproved
Outline / PiP

Approved on 28 April 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 alterations to existing roofline, a dormer extension at rear, rooflights to front roofslope and alterations to fenestrations.

Received
4 March 2026
Ward
Wallington South
  1. Received4 Mar
  2. Validated4 Mar
  3. Consult.
  4. Target29 Apr
  5. Decided28 Apr

Decided in 55 days (council typically 56)

About this application

This is an outline application for a dormer extension at 48 Mount Park Carshalton SM5 4PS. Sutton has handled 404 applications of this type. This one was decided in 55 days. The site is in a conservation area. There has been 1 other application at this address. In the past year there have been 88 applications across Wallington South. We hold 645 applications in total for the SM5 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
SM5 4PS
Application type
Certificate of Proposed Use
Scale / size
Small

Planning application dates

Date validated
4 March 2026
Target decision date
29 April 2026

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
11
Constraints
6

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.

Associated applications

  1. 2026
    4 Mar

    Erection of a single storey side extension, formation of a front entrance porch, steps to rear and alteration…

    ApprovedHouseholderFiled alongsideDM2026/00269
  2. 2026
    4 Mar

    Conversion of loft space involving alterations to existing roofline, a dormer extension at rear, rooflights…

    This applicationApprovedOutlineDM2026/00270

Source: Sutton

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

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