Planning application
33 Onslow Avenue Cheam SM2 7ED
Works: Extension Loft or dormer Roofing Windows or glazing Small domestic
Read from the description, not a valuation. How we read the register
Refused. Only the applicant can appeal, within the statutory time limit, and a revised scheme can be submitted instead.
Proposal
Non material amendment to approved application DM2023/01555 which allowed the 'Erection of a two-storey rear extension and conversion of existing garage into a habitable room, formation of a front entrance canopy and alterations to fenestration to all elevations, conversion of loft space, involving alterations to the existing roof line, increase of the ridge height of the main roof, two dormers to rear roofslope and a rooflight to front roofslope' to allow the formation of a front entrance porch, alterations to the front entrance door detail, alterations to fenestrations and external finish, installation of an air source heat pump to rear and installation of rooflights to ground floor flank utility room together with roof alterations.
As published by the council, reference DM2025/01060
Application record
- Reference
- DM2025/01060
- Type
- Non-Material Amendment
- Status
- Application Refused
- Decision
- Application Refused
- Received
- 13 Aug 2025
- Validated
- 15 Sep 2025
- Decided
- 8 Oct 2025
- Ward
- Cheam
- Decision by
- Delegated Decision
- Postcode
- SM2 7ED
Timeline
Dates from the published record
-
13 Aug 2025
Received by Sutton
-
15 Sep 2025
Validated
Checked as complete and ready for consideration.
-
8 Oct 2025
Decision issued: Application Refused
-
13 Aug 2026
Added to PlanIndex
Who's behind it
Company information only, from the register and Companies House
Agent on file, an architecture practice registered in Heathrow
53 applications on PlanIndex · across 22 councils · 93% granted
Trade members see who it is, their full track record, and every application they have filed.
See who's behind itDocuments
Plans, drawings, consultee responses and the officer's report
6 documents on file for this application
A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.
Trade members open them from here.
Open the documentsWhat refusal means
The process from here
The council refused this application for the reasons set out on the decision notice, which the council portal holds in full. Only the applicant can appeal a refusal; the time limit runs from the decision date and is shorter for householder schemes.
Refusal does not prevent a fresh attempt. Applicants often address the reasons for refusal and resubmit, so a refused scheme is not necessarily the end of proposals for the site.
About amendments applications
How this application type works
An amendment application changes a permission that already exists. Non-material amendments cover small adjustments with no wider effect, while minor material amendments, usually made by varying a condition, allow modest design changes without a fresh application. Anything beyond that needs a new permission, so the scope here is deliberately narrow.
Nearby applications
Within 500 metres
-
33 Onslow Avenue Cheam SM2 7ED
Non material amendment to approved application DM2024/00527 which allowed the 'Erection of a single storey rear extension,' to allow for alterations to rear extension roof eaves and verge and installation of two air conditioning units to rear elevation.
Refused Amendments Extension 6 docsSmall domestic -
33 Onslow Avenue Cheam SM2 7ED
Retention of a front entrance porch, installation of rooflights to the single storey flank extension, alteration to the single storey rear extension roof detail, installation of an air source heat pump and two air conditioning units to ground floor rear elevation, alterations to front boundary treatment/forecourt and rear terrace with steps leading up to rear garden land, alteration to front, side and rear fenstrations and alteration to external finishes.
Granted Householder Extension Loft or dormer 17 docsSmall domestic -
33 Onslow Avenue Cheam SM2 7ED
Erection of a single storey rear extension, conversion of garage into habitable room and a front entrance porch.
Granted Householder Extension 12 docsSmall domestic -
1 Scarborough Close Cheam Surrey SM2 7EA
Erection of a conservatory at rear.
Granted Householder ExtensionSmall domestic -
6 Scarborough Close Cheam SM2 7EA
Rebuilding of garage with extension over, erection of a two storey bay extension and enlargement of dormer extension at front.
Granted Householder Extension Loft or dormerDomestic -
9 Scarborough Close Cheam SM2 7EA
Erection of part one, part two storey front/side extensions including dormer extensions at front and the formation of a front entrance porch, erection of a single storey side/rear extension and provision of a new flank chimney breast and stack.
Refused Householder Extension Loft or dormer 12 docsSmall domestic
Other amendments applications
In Sutton
-
DM2026/00577 Withdrawn
Unit 3 Level1 Times Square Shopping Centre High Street Sutton SM1 1LF
Non material amendment to approved application DM2023/01793 which allowed ''Erection of a fifth floor extension to provide a bar, restaurant and spa including rooftop terraces and other associated works including additional plant and landscaping.'' to remove the hospitality from the change of use, to only offer a spa and to provide a smaller extension, alterations to materials used and the fenestrations, modifications to the internal layout and associated updates to the fire safety statement.
-
DM2026/00585 Withdrawn
101 Epsom Road Sutton SM3 9EY
Application to delete condition 5 (installation of solar panels) of planning permission Ref: DM2024/01437 to allow for the omission of solar panels as the energy statement.
-
DM2026/00757 Granted
44 Birchwood Avenue Wallington SM6 7EN
Application to delete condition 2 (garage use) of planning permission Ref: 86/29540 for the 'Enlargement of existing garage' to allow for flexibility for future garage use.
-
DM2026/00683 Granted
34 Link Lane Wallington SM6 9EB
Application to vary condition 1 (approved drawings) of planning permission Ref: DM2025/01441 for the 'Erection of a part one, part two storey front and side extension including the formation of a front entrance porch, conversion of loft space involving a dormer window and a dormer extension at rear and alteration to the first floor flank fenestration' to allow alterations to the front porch window detail and external material finish of the front elevation.
-
DM2026/00637 Granted
70 West Street Carshalton SM5 2PR
Retention of detached garage.