Planning application
25/02550/CPU
23 Cotsford Avenue New Malden KT3 5EU
Proposal
Erection of a single storey rear detached outbuilding to be used as a home office/garden room.
As published by the council, reference 25/02550/CPU
Timeline
Dates from the published record
-
30 Sep 2025
Received by Kingston upon Thames
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10 Dec 2025
Decision issued: Refuse
-
3 Aug 2026
Added to PlanIndex
What 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 lawful development applications
How this application type works
A lawful development certificate is a legal determination, not a planning judgement. It asks the council to confirm either that existing use or works are lawful, often through the passage of time, or that a proposal would not need planning permission at all. The applicant must prove the facts; the merits of the scheme are not considered.
Nearby applications
Within 500 metres
-
26/01304/FUL Awaiting decision
21 Cotsford Avenue New Malden KT3 5EU
Demolition of existing dwelling. Erection of replacement dwelling.
-
22/03912/HOU Granted
11 Cotsford Avenue New Malden KT3 5EU
Erection of single storey rear, front porch and side extension. Erection of roof extension and installation of 2nos front. 2nos rear and 3nos side rooflights to facilitate loft conversion. Relocation of main entrance door.
-
21/02662/NMA Granted
Lse Sports Ground Windsor Avenue New Malden KT3 5HB
Application for Non-Material Amendment to Planning Permission ref: 19/01336/FUL (Installation of a new cold water storage tank and pumps). Amendments to include forming separate housing enclosure units
-
21/04091/FUL Withdrawn
71 Windsor Avenue New Malden KT3 5HE
Erection of a 2 storey new dwelling house to the rear of the property with associated parking, cycle storage and bin storage
-
21/02087/FUL Granted
71 Windsor Avenue New Malden KT3 5HE
Erection of 2 storey house to rear of existing property with formation of vehicular crossover, associated parking, amenity space, cycle parking and refuse/recycling store.
-
21/02314/CLC Granted
5 Cotsford Avenue New Malden KT3 5EU
Details required for Condition 14 (Construction Logistics Plan) of planning permission 20/01830/FUL (Erection of two-storey dwelling house and attached garage (following demolition of existing house, garage and outbuilding) with associated cycle storage and refuse enclosure)
Other lawful development applications
In Kingston upon Thames
-
26/01186/CPU Granted
116 Deacon Road Kingston Upon Thames KT2 6LU
Erection of hip to gable roof extension with rear dormer and installation of 2nos front rooflights.
-
26/01097/CPU Granted
3 Sherwood House Kingston Vale London SW15 3PP
Use of home for administration of private hire vehicle operating centre
-
26/01085/CPU Granted
96 Thornhill Road Tolworth KT6 7TH
Erection of hip to gable rear dormer roof extension, installation of 2no front roof lights and 1 new gable end window.
-
26/01648/CPUF Awaiting decision
66 Douglas Road Kingston Upon Thames KT1 3PT
Erection of a single storey detached domestic garden outbuilding
-
26/01052/CPU Granted
5 Burberry Close New Malden KT3 3AR
Conversion of an existing garage into habitable room with associated alteration to fenestration