Planning application
23 Upper Grotto Road Twickenham TW1 4NG
Works: Extension Windows or glazing Domestic
Read from the description, not a valuation. How we read the register
Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.
Proposal
Ground floor rear and side extension, internal alterations and minor alterations to fenestration
As published by the council, reference PA26/2971
Application record
- Reference
- PA26/2971
- Type
- Householder Application
- Status
- Registered
- Received
- 26 Aug 2026
- Validated
- 28 Aug 2026
- Ward
- South Twickenham Ward [STT]
- Postcode
- TW1 4NG
Timeline
Dates from the published record
-
26 Aug 2026
Received by Richmond upon Thames
-
28 Aug 2026
Validated
Checked as complete and ready for consideration.
-
8 Sep 2026
Added to PlanIndex
-
Decision
Awaiting decision
Decision expected by 23 October 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.
Richmond upon Thames took a median of 45 days over the applications it decided in the last year.
Documents
Plans, drawings, consultee responses and the officer's report
12 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 happens while it is decided
This application is with Richmond upon Thames for determination, against a statutory target of eight weeks. Over the last year Richmond upon Thames decided householder applications in a median of 55 days. More in our guide to how long planning decisions take.
About householder applications
Householder applications cover work to an existing house and its garden, such as extensions, lofts and outbuildings, and cannot create a separate dwelling or change what the building is used for. More in our guide to planning application types.
Nearby applications
Within 500 metres
-
23 Upper Grotto Road Twickenham Richmond Upon Thames TW1 4NG
Proposed Loft Conversion With Rear Dormer And Extension Over Rear Section.
Granted Prior approval Extension Loft or dormer 8 docs -
19 Upper Grotto Road Twickenham Richmond Upon Thames TW1 4NG
Proposed restructuring and extension to roof to provide a third floor to house.
Refused Householder Extension 6 docsDomestic -
28, Upper Grotto Road, Twickenham, TW1 4NF
Installation of air conditioning heat pump split system.
Granted Prior approval 12 docs -
24 Upper Grotto Road Twickenham TW1 4NF
Variation of condition U66223 (Approved Drawings) of planning permission 19/1735/HOT to allow for amendments to roof of approved side/rear extension and increase height of boundary wall with no. 26
Granted Amendments Extension 7 docsSmall domestic -
34 Upper Grotto Road Twickenham TW1 4NF
Proposed single storey rear / side extension.
Granted Householder Extension 17 docsSmall domestic -
39 Upper Grotto Road Twickenham TW1 4NG
Proposed single storey rear extension to detached house.
Granted Householder New dwelling Extension 19 docsSmall domestic
Other householder applications
In Richmond upon Thames
-
PA26/2452 Refused
50 Fairfax Road Teddington TW11 9BZ
Roof extension to create additional loft storey. Increase in height to eaves and ridge to part of existing roof.
-
PA26/3078 Awaiting decision
64 FIRST AVENUE MORTLAKE LONDON SW14 8SR
The demolition of the existing ground floor rear extension, construction of replacement ground floor rear extension and replacement windows to the rear of the property.
-
PA26/3057 Awaiting decision
23, Manderlea, The Avenue, Hampton, TW12 3RN
Single storey rear extension, single storey side extension, and the installation of an air conditioning unit
-
PA26/3068 Awaiting decision
27 Ranelagh Avenue Barnes London SW13 0BL
Single storey side return with a sloping rooflight. Incl replacement windows throughout.
-
PA26/3067 Awaiting decision
27 Ranelagh Avenue Barnes London SW13 0BL
Rear mansard roof extension.