Planning application
1 Colonial Avenue Twickenham TW2 7EE
Works: Extension Loft or dormer
Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.
Proposal
Hip to gable loft extension. Rear dormer loft extension. Rooflights to front elevation
As published by the council, reference PA26/3346
Application record
- Reference
- PA26/3346
- Type
- Section 192 Permitted Development
- Status
- Registered
- Received
- 29 Sep 2026
- Validated
- 1 Oct 2026
- Ward
- Whitton Ward [WTT]
- Postcode
- TW2 7EE
Site history
Applications at this address on the Richmond upon Thames register
This site has had 3 applications since 2026: 0 approved, 1 refused.
-
PA26/2801 Withdrawn
1 Colonial Avenue Twickenham TW2 7EE
Hip to gable and L-shaped rear dormer roof extensions. Roof lights to the front roof slope. Replacing single storey rear/side extension. Removal of side chimneys. Associated alterations.
-
PA26/2668 Refused
1 Colonial Avenue Twickenham TW2 7EE
Hip to gable and rear dormer roof extensions. Roof lights to the front roof slope. Single storey rear/side extension. Removal of side chimneys.
Timeline
Dates from the published record
-
29 Sep 2026
Received by Richmond upon Thames
-
1 Oct 2026
Validated
Checked as complete and ready for consideration.
-
4 Oct 2026
Added to PlanIndex
-
Decision
Awaiting decision
Decision expected by 26 November 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 46 days over the applications it decided in the last year.
Documents
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.
Watch members (£5 a month) open the document list 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 prior approval applications in a median of 43 days. More in our guide to how long planning decisions take.
About prior approval applications
Prior approval applies where permitted development rights already grant the principle of the work, leaving the council only the specific matters the rules name, commonly within 56 days. More in our guide to planning application types.
Nearby applications
Within 0.3 miles
-
1 Colonial Avenue Twickenham TW2 7EE
Hip to gable and L-shaped rear dormer roof extensions. Roof lights to the front roof slope. Replacing single storey rear/side extension. Removal of side chimneys. Associated alterations.
Withdrawn Householder Extension Loft or dormer 8 docsSmall domestic -
1 Colonial Avenue Twickenham TW2 7EE
Hip to gable and rear dormer roof extensions. Roof lights to the front roof slope. Single storey rear/side extension. Removal of side chimneys.
Refused Prior approval Extension Loft or dormer 7 docsSmall domestic -
186 Kneller Road Twickenham Richmond Upon Thames TW2 7EF
Change Of Use From A Shop To Residential Use And External Alterations.
Refused Full applications 10 docs -
186 Kneller Road Twickenham Richmond Upon Thames TW2 7EF
Change Of Use From A Shop With Residential Accommodation To A Single Family House.
Granted Full applications 6 docs -
190 Kneller Road Twickenham Richmond Upon Thames TW2 7EF
Proposed formation of new first floor storey, removal of existing roof to bungalow and replacement with new pitched roof.
Granted Householder 10 docsDomestic -
Small domestic
Other prior approval applications
In Richmond upon Thames
-
PA26/2683 Granted
3, Pauline Crescent, Twickenham, TW2 6JD
Single storey rear extension
-
PA26/3420 Awaiting decision
129 Lower Mortlake Road Richmond TW9 2LP
Conversion of existing loftspace into habitable rooms with dormers to rear over main house and offshot
-
PA26/3160 Granted
2A Station Road Hampton Wick Middlesex KT1 4HG
Repair of the front dormer cheeks, involving the replacement of the existing hanging slates with traditional lead.
-
PA26/3423 Awaiting decision
95 Selkirk Road Twickenham TW2 6PT
Construction of single storey rear extension, 4.3m in depth, 3m in height and 3m in height to eaves.
-
PA26/3389 Awaiting decision
39, Shacklegate Lane, Teddington, TW11 8SF
The existing 4.55 m deep ground-floor rear extension is to be extended by 1.45 m. The existing pitched roof will also be extended, with the overall height remaining unchanged (6m overall depth, 2.41m eaves height, 3.78m overall height).