Planning application
26/00308/HOU
173 Thornhill Road Tolworth KT6 7TG
Proposal
Erection of rear dormer roof extension with installation of 3nos. front rooflights to facilitate loft conversion. Installation of roof lantern to existing single storey rear extension, internal alterations and changes to rear fenestrations
As published by the council, reference 26/00308/HOU
Timeline
Dates from the published record
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11 Feb 2026
Received by Kingston upon Thames
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20 Apr 2026
Validated
Checked as complete and ready for consideration.
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2 Jul 2026
Decision issued: Application Granted
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26 Jul 2026
Added to PlanIndex
What 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
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22/00206/CPU Granted
200 Thornhill Road Tolworth Surbiton KT6 7TF
Erection of rear dormer roof extension with installation of 2no front rooflights to facilitate loft conversion
-
21/02647/HOU Refused
62 Tankerton Road Tolworth Surbiton KT6 7LG
Erection of rear piggyback roof extension to facilitate loft conversion. Raising 1no chimney stack and removal of 1no chimney stack
-
21/03747/FUL Refused
175 Red Lion Road Tolworth Surbiton KT6 7RG
Change of Use from Use Class E(a) to Hot Food/Take Away (Sui Generis) and installation of extractor flue pipe
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26/00410/FUL Awaiting decision
167 Red Lion Road Tolworth KT6 7RG
Erection of two storey mixed use development comprising a ground floor car showroom and 1no 2bed flat above. Alteration to existing rear outbuilding for sales office.
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21/02875/FUL Granted
45 Tankerton Road Tolworth Surbiton KT6 7LF
Demolition of existing bungalow and erection of 2no. x three-bedroom dwelling houses with associated refuse storage, amenity space and cycle stand
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21/02860/CPU Granted
172 Red Lion Road Tolworth Surbiton KT6 7QY
Erection of hip-to-gable and rear dormer roof extensions, raising chimney stack with installation of 2no front rooflights to facilitate loft conversion
Other householder applications
In Kingston upon Thames
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26/00654/HOU Granted
25A Motspur Park New Malden KT3 6PS
Erection of single storey rear extension
-
26/01665/PAEXT Awaiting decision
34 Rose Walk Surbiton KT5 8HS
Erection of single storey rear extension (5.22m in depth, maximum height of 3.68m and eaves height of 3.04m)
-
26/01050/HOU Granted
59 Poplar Grove New Malden KT3 3DN
Demolition of existing rear extension and erection of a single storey rear and side extension
-
26/01337/HOUF Refused
63 Highdown Worcester Park KT4 7JA
Demolition of an existing detached garage and side extension, erection of a single storey front porch, side and rear wraparound extension. First floor rear extension with juliet balcony.
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26/01649/PAEXTF Awaiting decision
66 Douglas Road Kingston Upon Thames KT1 3PT
Erection of single storey rear extension (5m in depth, maximum height of 4m and eaves height of 3m)