Planning application
420 Middleton Road Carshalton SM5 1HP
Works: Extension Small domestic
Read from the description, not a valuation. How we read the register
Permission granted. Work must normally begin within three years of the decision or the permission lapses.
Proposal
Erection of a single storey rear extension and conversion of garage into habitable room with associated external work.
As published by the council, reference DM2025/01458
Application record
- Reference
- DM2025/01458
- Type
- Householder Application
- Status
- Application Granted
- Decision
- Application Granted
- Received
- 25 Nov 2025
- Validated
- 25 Nov 2025
- Decided
- 15 Jan 2026
- Ward
- St Helier East
- Decision by
- Delegated Decision
- Postcode
- SM5 1HP
Timeline
Dates from the published record
-
25 Nov 2025
Received by Sutton
-
15 Jan 2026
Decision issued: Application Granted
-
13 Aug 2026
Added to PlanIndex
Who's behind it
Company information only, from the register and Companies House
Agent on file, a design practice
7 applications on PlanIndex · across 2 councils
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
14 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 a grant of permission means
The process from here
Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.
Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.
About householder applications
How this application type works
Householder applications cover work to an existing house and its garden: extensions, loft and garage conversions, porches, outbuildings and similar alterations within the boundary of the home. They cannot be used to create a separate dwelling or change what the building is used for. Councils aim to decide them within eight weeks, and immediate neighbours are usually notified and given a chance to comment.
Nearby applications
Within 500 metres
-
386 - 390 Middleton Road Carshalton SM5 1HP
Alteration to shopfront and provision of AC unit and extractor fan to rear.
Granted Full applications Windows or glazing 19 docs -
386 - 390 Middleton Road Carshalton SM5 1HP
89% historically approved · decision due ~17 Oct
Display of illuminated fascia signs and projecting sign.
Awaiting decision Advertising 6 docs -
440 Middleton Road Carshalton Sutton SM5 1HP
Prior Approval for single storey rear extension projecting from the rear of the original house by 4m.
Refused Householder Extension 9 docsSmall domestic -
203 Thornton Road Carshalton SM5 1NG
Prior Approval for a single storey rear extension projecting from the rear of the original house by 5.98m.
Granted Householder Extension 10 docsSmall domestic -
199 Thornton Road Carshalton SM5 1NG
Erection of a single storey rear extension, provision of a front entrance porch and alteration to the ground floor front and flank fenestrations.
Granted Householder Extension 9 docsSmall domestic -
66 Sherborne Crescent Carshalton SM5 1JX
Conversion of loft space involving alterations to existing roofline, a dormer extension at rear, a window to flank roofslope and rooflights to front roofslope.
Granted Outline Extension Loft or dormer +1 13 docs
Other householder applications
In Sutton
-
DM2026/00825 Refused
4 Oakwood Wallington SM6 0RD
Prior Approval for a single storey upwards extension projecting from the original house by 2.81m.
-
DM2026/00600 Granted
5 Waterer Rise Wallington SM6 9DN
Erection of front boundary gates with walls, piers and railings.
-
DM2026/00544 Granted
18 Cheviot Close Sutton SM2 5SB
Erection of a single storey front, side and rear extension.
-
DM2026/00083 Granted
53 Oxford Road Carshalton SM5 3QZ
Erection of a part one, part two storey side and rear extension. Conversion of loft space involving alterations to existing roofline, a dormer extension at rear and rooflights to front roofslope.
-
DM2026/00644 Granted
37 Farm Way Worcester Park KT4 8RZ
Erection of a single storey rear extension and conversion of the garage to a habitable room with associated external works.