135 And 137 Brightside Avenue Staines-upon-Thames TW18 1NH Data via plota.co.uk
Proposal
Retrospective application for retention of roof extension including raised ridge height, rear facing dormers and 6 no roof lights on front roof plane. Part two storey part single storey side extension and single storey front and rear extension to 137 Brightside Avenue (as shown on location and block plan rec'd 18.02.2026 and E-01 Rev A and E-02 Rev A rec'd 20.07.2026). Data via plota.co.uk
Application progress
Refused on 14 Aug 2026 · Delegated Decision · Last checked 15 Aug 2026
Documents 8
Decision & officer reports 2
Plans & drawings 1
Application forms 1
Consultation & comments 3
Other documents 1
Site constraints 4
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.
Building
From the energy performance certificate lodged in April 2022, 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
- Full Application
- Postcode
- TW18 1NH
- Received
- 18 Feb 2026
- Validated
- 14 Apr 2026
- Ward
- Riverside And Laleham
- Parish
- Staines South And Ashford West ED
- Case officer
- Show
- Target decision
- 9 Jun 2026
- Decision
- Application Refused
- Decision date
- 14 Aug 2026
- Decision level
- Delegated Decision
- Applicant
- Show
- Agent
- Design Extension
How this decision compares
Decided in 122 days from validation, 67 days slower than Spelthorne's median of 55 for extensions. Refused, as 13% of extensions here are.
Plota live figures for extensions decided by Spelthorne in the last twelve months, from validation. Spelthorne decision record →
Public comments
100% object · above the UK average of 74%
7 neighbours consulted · Last counted 15 Aug 2026
Consultation & key dates
- Alt. reference
- PP-14677795
- Planning Portal ref
- PP-14677795
- Neighbours
- 27 Jul 2026
- Consultation
- 27 Jul 2026
- Comments by
- 10 Aug 2026
- Site or press notice
- 29 Apr 2026
- Statutory expiry
- 9 Jun 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%).
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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135 And 137 Brightside Avenue Staines-upon-Thames TW18 1NH
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