Planning application
21 Erncroft Way Twickenham TW1 1DA
Works: Extension Loft or dormer
Permission granted. Work must normally begin within three years of the decision or the permission lapses.
Proposal
Hip to gable roof extension with rear roof slope dormer and rooflights to the front roof slope.
As published by the council, reference PA26/0095
Application record
- Reference
- PA26/0095
- Type
- Section 192 Permitted Development
- Status
- Decided
- Decision
- Granted Permission
- Received
- 12 Jan 2026
- Validated
- 12 Jan 2026
- Decided
- 9 Mar 2026
- Ward
- St. Margarets & North Twickenham Ward [SMN]
- Decision by
- Delegated Decision
- Postcode
- TW1 1DA
Site history
Applications at this address on the Richmond upon Thames register
This site has had 2 applications since 2026: 2 approved, 0 refused.
-
PA26/0094 Granted
21 Erncroft Way Twickenham TW1 1DA
Ground floor side and rear elevation extension, with part pitched and part flat roof.
Timeline
Dates from the published record
-
12 Jan 2026
Received by Richmond upon Thames
-
9 Mar 2026
Decision issued: Granted Permission
-
13 Aug 2026
Added to PlanIndex
Documents
Plans, drawings, consultee responses and the officer's report
11 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 this grant of permission means
Richmond upon Thames granted permission on 9 March 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.
Nearby applications
Within 500 metres
-
21 Erncroft Way Twickenham TW1 1DA
Ground floor side and rear elevation extension, with part pitched and part flat roof.
Granted Householder Extension 16 docsDomestic -
All Hallows Church Hall Erncroft Way Twickenham TW1 1DA
'Internal and external refurbishment including conversion of first floor storage area into a meeting room, cladding of the front west and side elevations, new heating system with potential renewables including PVs to the roof, new pedestrian and vehicular gates to the site entrance from Erncroft Way, new cycle storage, refuse storage enclosure and attenuated acoustic enclosure for a new air source heat pump.
Granted Full applications 24 docs -
All Hallows Church Hall, Erncroft Way, Twickenham
Details pursuant to condition U0152535 - construction management statement of planning approval 22/3759/FUL.
Granted Conditions 6 docs -
16 Erncroft Way Twickenham TW1 1DA
84% historically approved · decision due ~20 Oct
Erection of ground and first-floor side/rear extensions, conversion of the existing garage to habitable accommodation, alterations to the existing rear extension, and construction of a rear dormer roof extension to provide additional residential accommodation, together with associated external alterations.
Awaiting decision Householder Extension Loft or dormer 12 docsDomestic -
21 Glebe Side Twickenham Richmond Upon Thames TW1 1DB
Proposed Conversion Of Property To 3 Flats Involving A Two Storey Side Extension, A Single Storey Rear Extension And A Loft Conversion With Rear Dormer. Internal Alterations And Alterations To The Position Of The Existing Cross Over; Existing Out Building To Be Demolished.
Withdrawn Householder New dwelling Extension +2 17 docsSeveral homes -
21 Glebe Side Twickenham Richmond Upon Thames TW1 1DB
Proposed Conversion Of Property To 3 Flats Involving A Two Storey Side Extension, A Single Storey Rear And Side Extension And A Loft Conversion With Rear Dormer. Internal Alterations And Alterations To The Position Of The Existing Vehicular Access; Existing Out Building To Be Demolished.
Refused Full applications New dwelling Extension +2 28 docsSeveral homes
Other prior approval applications
In Richmond upon Thames
-
PA26/2437 Granted
119 Hampton Road Twickenham TW2 5QN
Erection of a single-storey rear extension and associated internal alterations.
-
PA26/2424 Granted
45 Selkirk Road Twickenham
Flat roof rear box dormer extension with wall tiles to match existing roof.
-
PA26/2409 Granted
15 Tudor Road Hampton TW12 2NH
Proposed single storey rear extension and rear ground floor opening alterations.
-
PA26/2615 Granted
30, Jubilee Avenue, Twickenham, TW2 6JB
Loft conversion with roof extension and proposed out building in the rear garden.
-
PA26/3058 Awaiting decision
253, Staines Road, Twickenham, TW2 5AY
Prior approval for larger household extension (6m depth, 2.3m eaves height, 4m overall height)