Helena House 348 - 352 High Street Sutton SM1 1PX Data via plota.co.uk

DM2026/00375 - Non-Material Amendment Approved
Admin / proceduralCommercial premises

Proposal

Non material amendment to approved application 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 change informative 1 (Approved Plans) to a condition. Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
23 Mar 2026
✓
Approved
20 Apr 2026

Approved on 20 Apr 2026 · Delegated Decision · Last checked 6 Jul 2026

Documents 5

Decision & officer reports 2

PDF DECISION NOTICE GRANT NMA Decision · 20 Apr 2026 View ↗ PDF OFFICER REPORT Officer Report · 20 Apr 2026 View ↗

Plans & drawings 1

PDF HHSSBPRAL 010P1 Site Location Plan Drawing · 23 Mar 2026 View ↗

Application forms 1

PDF Application Form (No personal data) Application Form · 23 Mar 2026 View ↗

Other documents 1

PDF Covering Letter Supporting Document · 23 Mar 2026 View ↗

All documents on the council site ↗

Associated applications 5

Site constraints 7

Air quality management area: Sutton AQMA
The council has declared the area as failing an air quality objective.
Schemes that add traffic, parking or combustion plant are assessed against the area's action plan and may need an air quality assessment.
Council record ↗
Town centre: Sutton
A designated centre in the London Plan.
Shops, services and active frontages are protected in centres, and main town centre uses are steered here first.
1 listed building within 150 m
Nearest: unnamed, 31 m away
The site itself is not listed. Listed building consent is needed for work that affects the special interest of a listed building, inside or out, on top of planning permission. Setting can be a consideration for buildings nearby; there is no fixed radius.
Historic England ↗
Also on the record
Local nature reserve 475 m away: Anton Crescent Wetland; Inside the Sutton (Sutton) built-up area; Public transport access: PTAL 5 (very good), TfL 2023, for the 100 m square; Designated open space 36 m away.
Not affected
Outside flood zones 2 and 3 · Not green belt · No scheduled monument at the site

Checked on 6 October 2026. Historic England, the Environment Agency, Natural England, Transport for London (public transport access levels, Powered by TfL Open Data, OGL v3.0, contains OS data © Crown copyright and database right 2025) and council datasets, Open Government Licence. A boundary can run through a site and the council holds the definitive record: confirm with the council before relying on this.

Building

Floor area2,081 m² (22,400 sq ft)
Energy ratingC (asset rating 70)
UseB1 Offices and Workshop businesses
HeatingAir Conditioning

From the energy performance certificate lodged in January 2019, the latest held for this property. The building may have changed since. View the certificate

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Important details

Council
Sutton
Application type
Non-Material Amendment
Postcode
SM1 1PX
Received
23 Mar 2026
Validated
23 Mar 2026
Ward
Sutton North
Case officer
Show
Decision
Application Granted
Decision date
20 Apr 2026
Decision level
Delegated Decision
Agent
Ella Hines

Consultation & key dates

Env. assessment
No

Historical activity at this location

50 previous applications on record - archival context, not part of the live application.

This property

Previous applications at this address

2024 Approved
Erection of a three-storey rear extension to existing stairwell, alterations to side and…
DM2024/01595
2023 Approved
Erection of a five storey front extension, provision of solar panels to roof, alterations…
DM2023/01269
2023
Alterations to the fenestrations including juliette balconies to the front and rear eleva…
DM2023/01608
2023 Approved
Temporary mast with associated cabinet equipment cabinet as illustrated on the enclosed d…
DM2023/01424
2023 Approved
Erection of single storey rear extension, provision of cycle and refuse stores and altera…
DM2023/00393
2022 Refused
Erection of a single storey rear extension and alterations to rear elevation.
DM2022/01960
2020 Refused
Demolition of existing building and the erection of a part-5, part-8 storey building to p…
DM2020/00476
2025
Application to vary condition 1 (Approved plans) and condition 2 (Occupation) of planning…
DM2025/01390
2025
Prior Approval for change of use of first-fifth floors from Use Class E to residential us…
DM2025/01162
2025 Approved
Application to clear condition 1 (Construction Logistics Plan) of approved application DM…
CLC2025/00105
2025 Approved
Application to clear condition 4 (Construction Logistics Plan) of approved application DM…
CLC2025/00108
2025 Approved
Application to clear condition 1 (Construction Logistics Plan) of approved application DM…
CLC2025/00107
2025 Approved
Application to clear condition 9 (Construction Logistics and Management Plan) of approved…
CLC2025/00106
2025
Application to clear condition 4 (construction logistics plan) of approved application DM…
CLC2025/00078
2025 Approved
Application to clear condition 4 (Construction Logistics Plan) of approved application DM…
CLC2025/00023
2025 Approved
Application to clear condition 12 (Tree Protection Measures) of approved application DM20…
CLC2025/00012
2024
Application to clear condition 1 (Construction Logistics Plan) of approved application DM…
CLC2024/00240
2024
Application to clear condition 1 (Construction Logistics Plan) of approved application DM…
CLC2024/00238
2024
Application to clear condition 9 (Construction Logistics Plan and Construction Management…
CLC2024/00239
2024
Application to clear condition 4 (Construction Logistics Plan) of approved application DM…
CLC2024/00221
2024
Application to clear condition 5 (Energy Statement) of approved application DM2023/00393.
CLC2024/00216
2024
Application to vary condition 1 (approved plans) of planning permission ref: DM2023/01269…
DM2024/01582
2024 Refused
Prior Approval in relation to the erection of 2 new floors to provide 12 self contained r…
DM2024/00476
2023 Approved
Prior Approval for change of use from Use Class E (Office) to Class C3 (Dwellings) on fir…
DM2023/00643
2022 Approved
Prior Approval change of use from Class E (Office) to Class C3 (Dwellings) on the second…
DM2022/01530
Within ~100m

Nearby activity

2025
341 High Street Sutton SM1 1LW
Demolition of existing building and erection of a detached 6 storey mixed use building pr…
DM2025/01220
2024 Approved
B&Q Local 324 High Street Sutton SM1 1PR
Display of 2 internally illuminated projecting signs and 2 internally illuminated fascia…
DM2024/01282
2024 Approved
Telephone Kiosk Outside 366 High Street Sutton SM1 1QE
Installation of a freestanding multi-functional Communication Hub.
DM2024/01174
2024 Approved
Telephone Kiosk Outside 366 High Street Sutton SM1 1QE
Display of internally illuminated freestanding digital screen.
DM2024/01175
2023
21 Oakhill Road Sutton SM1 3AA
Erection of a single storey front extension, a part one, part two storey rear extension…
DM2023/01806
2023 Refused
21 Oakhill Road Sutton SM1 3AA
Erection of a part one part two storey rear extension, single storey front extension, con…
DM2023/01262
2023 Refused
B&Q Local 324-340 High Street Sutton SM1 1PR
Retrospective permission for the display of illuminated projecting signs and fascia signs.
DM2023/00933
2023 Approved
31 Lewis Road Sutton Sutton SM1 4EQ
Demolition of garage and erection of a single storey side extension.
DM2023/00537
2021 Refused
341 High Street Sutton SM1 1LW
Erection of a detached 4 storey building in rear car park to accommodate 9 self contained…
DM2021/00066
2021 Refused
341 High Street Sutton SM1 1LW
Redevelopment of the site comprising the erection of a 5 storey building to front High St…
DM2021/00043
2021 Refused
341 High Street Sutton SM1 1LW
Redevelopment of the site comprising the erection of a 6 storey building to front High St…
DM2021/00042
2023 Approved
33 Lewis Road Sutton Sutton SM1 4EQ
Erection of a two-storey side extension.
DM2023/00163
2022 Refused
31 Lewis Road Sutton Sutton SM1 4EQ
Demolition of existing garage and erection of a single storey side/rear extension.
DM2022/02180
2022 Approved
14 Oakhill Road Sutton SM1 3AB
Erection of a single storey extension to the rear and side. Provision of replacement wind…
DM2022/01538
2022 Approved
10 Oakhill Road Sutton SM1 3AB
Application to vary conditions 1 (Approved Drawings) and 3 (Materials) of planning permis…
DM2022/00952
2021 Decided
Telecommunication Mast 33554 Helena House 348 - 352 High Street Sutton SM1 1PU
Removal and replacement of 3no. antennas with 3no. new antennas, the re location of 3no…
DM2021/02537
2021 Refused
348-352 Helena House High Street Sutton SM1 1PX
Change of use of the existing building from Class E (office) to C3 (residential) to provi…
DM2021/00899
2021 Decided
Telecommunication Mast 33554 Helena House 348 - 352 High Street Sutton SM1 1PU
The proposed upgrade consists of the replacement of 3No. existing antennas with 3No. new…
DM2021/00783
2020 Decided
Telecommunication Mast 33554 Helena House 348 - 352 High Street Sutton SM1 1PU
The removal and replacement of 3No. Existing antennas with 3No. Upgraded antennas, the re…
DM2020/01958
2020 Approved
The Prince Regent 324 - 346 High Street Sutton
Demolition of the existing public house and the erection of a 6 storey mixed use developm…
DM2020/00532
2016 Approved
1 The Green Sutton SM1 1QT
Erection of a detached two storey building comprising of two 1-bedroomed self contained f…
B2016/75193
2016 Approved
33 Lewis Road Sutton SM1 4EQ
Demolition of existing garage and erection of a single storey rear extension. Replacement…
B2016/75367
2016 Refused
Helena House 348-352 High Street Sutton SM1 1PX
Change of use from an office to a residential use providing 38 residential units with 21…
B2016/74886
2016 Approved
324-340 High Street Sutton SM1 1PR
Variation of condition 2 (drawings) of previously approved application B2013/67198/FUL fo…
B2016/74661
2016 Withdrawn
324-340 High Street Sutton SM1 1PS
variation of condition 2 (drawing numbers) of previously approved application No. B2013/6…
B2016/73725
Sutton
Planning Authority Score
8.2/10
Excellent
#23 of 296 councils
Relevant to this application:
Change of use

Sutton is one of the fastest councils in England for householder decisions, ranking #14 out of 296. Only 13% of applications have the time limit extended, well below the 41% national average - the council usually decides on time. Householder applications are slightly more likely to be approved here (93%) than the national average (90%).

Among the fastest councils in England
for householder decisions
These figures are council-wide context, not a prediction for this application. View full council performance
Sutton decision statistics
Based on MHCLG data, the year to March 2026
90%
Overall approval rate
Above avg (87%) #118 of 296
93%
Householder approved
Above avg (90%) #138 of 296
91%
Decided in 8 weeks
Above avg (63%) #14 of 296
13%
Extended time limit
Below avg (41%) #8 of 296
71%
Minor dwellings approved
85 decided (1-9 homes)
89%
Major dwellings approved
9 decided (10+ homes)
81%
Change of use approved
26 decided
891
Total decisions
93 refused in the year to March 2026
Source: MHCLG planning statistics · See full council rankings

Energy performance: Energy performance certificates from the Energy Performance of Buildings Register, Ministry of Housing, Communities and Local Government. Contains public sector information licensed under the Open Government Licence v3.0. © Crown copyright 2026.