Helena House 348 - 352 High Street Sutton SM1 1PX

DM2026/00155Non-Material AmendmentApproved

Prior approval

Approved on 9 March 2026

Council decision: Application GrantedDelegated (officer decision)

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

Non material amendment to approved application DM2022/01530 which allowed the 'Prior Approval change of use from Class E (Office) to Class C3 (Dwellings) on the second to fifth floors providing 27 self contained units', to amend the proposal to read as 'Prior Approval change of use from Class E (Office) to Class C3 (Dwellings) on the second to fifth floors providing self contained residential units'.

Received: 9 February 2026
Decision level: Delegated (officer decision)
Council: London Borough of Sutton
Ward: Sutton North

ReceivedReceived9 Feb
ValidatedValidated9 Feb
Consult.Consultation
TargetTarget Date9 Mar
DecidedDecided9 Mar

Decided in 28 days (council typically 56)

About this application

This is an application to amend a permission at Helena House 348 - 352 High Street Sutton SM1 1PX. Sutton has handled 87 applications of this type. This one was decided in 28 days, 4 weeks quicker than Sutton's typical decision time. The site is in a conservation area. There have been 6 other applications at this address. In the past year there have been 77 applications across Sutton North. We hold 845 applications in total for the SM1 postcode area.

89% of amendment 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 1PX
Application type: Non-Material Amendment
Scale / size: Medium
Number of dwellings: 27

Planning application dates

Date validated: 9 February 2026
Target decision date: 9 March 2026

Applicant and agent

Agent address: c/o Savills 33 Margaret Street London W1G 0JD United Kingdom

Planning decision

Statutory period: 28 days

Additional information

Comments: 0
Documents: 5
Constraints: 75

Site constraints

Checking the site

2/3

Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

Brownfield land register: Helena HouseRegister site at or near this address
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.

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

2026
9 Feb
Non material amendment to approved application DM2022/01530
This applicationApprovedNon-material amendmentDM2026/00155
2026
5 Feb
Retention and completion of part change of use of first-fifth floors to Class C3 (Residential) involving…
ApprovedFull ApplicationFiled alongsideDM2026/00147

Planning history at this site

11 other applications at this property, newest first.

Source: Sutton

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

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