39 Avondale Avenue Staines-upon-Thames TW18 2PL Data via plota.co.uk
Proposal
Erection of single storey side and rear extension, new roof with ridge height increase, extension of front bay and changes to fenestration. Data via plota.co.uk
Application progress
Under consideration
No decision has been issued yet. Plota predicted a decision around 9 Oct 2026; it is now day 57.
Documents 4
Plans & drawings 1
Application forms 1
Other documents 2
Site constraints 3
Checked on 6 October 2026. Historic England, the Environment Agency, Natural England, the Planning Inspectorate and council datasets, Open Government Licence. A boundary can run through a site and the council holds the definitive record: confirm with the council before relying on this.
Sales history 2
Last sold for £448,000 in July 2016. Detached house, freehold.
Sale prices from HM Land Registry's price paid record, matched to this application by its address.
Building
From the energy performance certificate lodged in September 2013, the latest held for this property. The building may have changed since. View the certificate
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Important details
- Council
- Spelthorne
- Application type
- Householder Application
- Postcode
- TW18 2PL
- Received
- 24 Jul 2026
- Validated
- 13 Aug 2026
- Ward
- Riverside And Laleham
- Parish
- Staines ED
- Case officer
- Show
- Target decision
- 8 Oct 2026
- Decision level
- Delegated Decision
- Applicant
- Show
- Agent
- Calypso Studios
Decision outlook
Day 57, past the statutory target. 96% of extensions in Spelthorne are decided within thirteen weeks, which runs to 12 Nov 2026; extensions of time are common, and the council need not decide on the day. Last seen undecided on 7 Oct 2026.
Plota live figures for extensions decided by Spelthorne in the last twelve months, from validation. Spelthorne decision record →
Public comments
No public comments yet.
3 neighbours consulted · Last counted 7 Oct 2026
Consultation & key dates
- Alt. reference
- PP-15066852
- Planning Portal ref
- PP-15066852
- Neighbours
- 19 Aug 2026
- Consultation
- 19 Aug 2026
- Comments by
- 10 Sept 2026
- Site or press notice
- 19 Aug 2026
- Statutory expiry
- 8 Oct 2026
- Env. assessment
- No
Historical activity at this location
25 nearby applications on record - archival context, not part of the live application.
Nearby activity
Spelthorne ranks #124 out of 296 councils for householder decision speed. Householder applications are slightly less likely to be approved here (88%) than the national average (90%).
Sale prices: Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.
Freehold boundary: © Crown copyright and database rights 2026, HM Land Registry. Polygons © Crown copyright and database rights 2026 Ordnance Survey 100026316. Conditions of use
Energy performance: Energy performance certificates from the Energy Performance of Buildings Register, Ministry of Housing, Communities and Local Government. Contains public sector information licensed under the Open Government Licence v3.0. © Crown copyright 2026.
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39 Avondale Avenue Staines-upon-Thames TW18 2PL
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The consultation period closed on 10 Sept 2026.