Planning application
21 Mayfair Avenue Twickenham TW2 7JG
Works: Loft or dormer Windows or glazing
Permission granted. Work must normally begin within three years of the decision or the permission lapses.
Proposal
HIP TO GABLE LOFT CONVERSION, ERECTION OF A REAR ROOF DORMER, PARTIAL REMOVAL OF CHIMNEY STACK, INSERTION OF TWO VELUX ROOFLIGHTS TO FRONT ROOFLSOPE AND ALTERATIONS TO FENESTRATION ON FLANK ELEVATION
As published by the council, reference PA26/1943
Application record
- Reference
- PA26/1943
- Type
- Section 192 Permitted Development
- Status
- Decided
- Decision
- Granted As published: Granted Permission
- Received
- 3 Jun 2026
- Validated
- 3 Jun 2026
- Decided
- 15 Jul 2026
- Ward
- Whitton Ward [WTT]
- Decision by
- Delegated Decision
- Postcode
- TW2 7JG
Timeline
Dates from the published record
-
3 Jun 2026
Received by Richmond upon Thames
-
15 Jul 2026
Decision issued: Granted Permission
-
26 Jul 2026
Added to PlanIndex
Documents
Plans, drawings, consultee responses and the officer's report
16 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.
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Open the documentsWhat this grant of permission means
Richmond upon Thames granted permission on 15 July 2026, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.
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.
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21 Mayfair Avenue Twickenham Richmond Upon Thames TW2 7JG
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13 Mayfair Avenue Twickenham TW2 7JG
Hip-to-gable loft conversion with rooflights to the front roof.
Granted Prior approval Loft or dormer 17 docs -
13 Mayfair Avenue Twickenham TW2 7JG
Demolition of existing single storey rear extension and rear bay window and erection of a full width single storey rear extension with part flat/part hipped roof.
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8 Oaklands Constance Road Twickenham Richmond Upon Thames TW2 7JQ
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11 Mayfair Avenue Twickenham Richmond Upon Thames TW2 7JG
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Other prior approval applications
In Richmond upon Thames
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PA26/2560 Granted
32 Fortescue Avenue Twickenham TW2 5LS
Construction of a hip to gable and rear dormer roof extension, rooflights to front elevation and single storey rear extension
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PA26/3175 Awaiting decision
146, Waldegrave Road, Teddington, TW11 8NA
CONSTRUCTION OF HIP TO GABLE AND REAR DORMER EXTENSIONS,INSERTION OF ROOFLIGHTS,ONE OBSCURE GLAZED SIDE WINDOW AND ALTERATIONS TO THE SOIL VENT PIPE. RESUBMISSION OF PREVIOUS REFUSED APPLICATION REF. PA26/2122.
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PA26/2193 Refused
5, The Hermitage, Richmond, TW10 6SH
ASHP unit to rear flat roof, AOV (automatic opening vent) - flue to rear flat roof
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PA26/2454 Granted
11 Collingwood Close Twickenham TW2 7AE
Hip to gable and rear dormer roof extensions and insertion of 2x rooflights to the front roof slope.
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PA26/0893 Granted
21, Gloucester Road, Twickenham, TW2 6NF
PROPOSED OUT BUILDING TO BE USED FOR STORAGE, SUMMER HOUSE AND GYMNASIUM