25 Arderne Road Timperley Altrincham WA15 6HJ
Refused on 8 April 2026
Council decision: RefusalDelegated (officer decision)3 reasons for refusal
Proposal
Erection of a two storey side and a part single/part two storey rear extension with rendering to side and rear elevations.
- Received
- 30 January 2026
- Decision level
- Delegated (officer decision)
- Ward
- Timperley North
- Agent
- AT A. DESIGN
- ReceivedReceived30 Jan
- ValidatedValidated11 Feb
- Consult.Consultation6 Mar
- TargetTarget Date8 Apr
- DecidedDecided8 Apr
Decided in 56 days (council typically 56)
About this application
This is a full planning application for a two storey rear extension at 25 Arderne Road Timperley Altrincham WA15 6HJ. Trafford has handled 2,373 applications of this type. This one was decided in 68 days, 12 days longer than Trafford's typical decision time. There has been 1 other application at this address. In the past year there have been 37 applications across Timperley North. We hold 1,465 applications in total for the WA15 postcode area.
84% of full applications at Trafford Metropolitan Borough Council were approved. Across all application types, the council typically decides in about 8 weeks (median).
Based on decided applications received in the last 3 years.Planning something similar? See what gets approved on your street
Why it was refused
- The proposed hip-to-gable extension and roof design of the side extension, would disrupt the symmetry of this pair of semi-detached properties, resulting in an unbalanced and contextually unsympathetic addition, which would have a significant detrimental impact on the visual appearance of the semi-detached pair and the wider street-scene, contrary to Policy JP-P1 of Places for Everyone, the Council's adopted Supplementary Planning Document 4: A Guide for Designing House Extensions and Alterations, February 2012 and the National Planning Policy Framework.
- The proposed single and two storey rear extension, by reason of its scale, massing and siting in close proximity to the common boundary with no.27 Arderne Road, would give rise to an unacceptable overbearing impact and harmful sense of enclosure and overshadowing of the rear windows and amenity space of no. 27. Therefore, the proposed rear extensions are considered to be detrimental to the amenity that the occupants of no.27 Arderne Road could reasonably expect to enjoy. As such the proposal would be contrary to Policy L7 of the Trafford Core Strategy, the Council's adopted Supplementary Planning Document, SPD4: A Guide for Designing House Extensions & Alterations and the National Planning Policy Framework
- The proposed introduction of render to the side elevation would appear as incongruous and contextually inappropriate alteration, which would be to the detriment of the visual appearance and character of the existing property and street scene, contrary to Policy JP-P1 of Places for Everyone, the Council's adopted Supplementary Planning Document 4: A Guide for Designing House Extensions and Alterations, February 2012 and the National Planning Policy Framework
From the council's decision notice.
Application details
- Postcode
- WA15 6HJ
- Application type
- Householder application
- Scale / size
- Small
Planning application dates
- Date validated
- 11 February 2026
- Consultation expiry
- 6 March 2026
- Neighbour consultation start
- 13 February 2026
- Neighbour consultation end
- 6 March 2026
- Last date for comments
- 6 March 2026
- Target decision date
- 8 April 2026
Applicant and agent
- Agent
- AT A. DESIGN
- Agent address
- 12 Hastings Gardens Stockport Manchester SK5 8BF
Planning decision
- Statutory period
- 56 days
Site constraints
Designations at the address point. Ones next to the site may also apply.
- Flood zone 1: Low probability (rivers and sea)
Not published by this council, so not checked: Article 4 directions and tree preservation orders. Ask the council if these matter.
Also checked, none recorded (22)
flood storage areas, conservation areas, listed buildings, green belt, scheduled monuments, World Heritage Sites, World Heritage Site buffer zones, registered parks and gardens, registered battlefields, Heritage at Risk entries, nutrient neutrality catchments, national parks, National Landscapes, SSSIs, Special Areas of Conservation, Special Protection Areas, Ramsar sites, ancient woodland, national nature reserves, local nature reserves, heritage coasts and brownfield registers.
A guide only, from official open data; it is not a planning search. Flood zones cover rivers and sea, not surface water.
Data © Crown copyright and others · sources and licences
Contains public sector information from planning.data.gov.uk (MHCLG and local planning authorities), licensed under the Open Government Licence v3.0. © Crown copyright and database right 2026.
© Historic England 2026. Contains Ordnance Survey data © Crown copyright and database right 2026. The Historic England GIS Data contained in this material was obtained on 2026-11-03. The most publicly available up to date Historic England GIS Data can be obtained from HistoricEngland.org.uk.
© Natural England copyright. Contains Ordnance Survey data © Crown copyright and database right 2026.
© Environment Agency copyright and/or database right 2026. All rights reserved. Flood Map for Planning, Open Government Licence v3.0.
Contains Ordnance Survey data © Crown copyright and database right 2026.
Source: Office for National Statistics licensed under the Open Government Licence v.3.0. Contains OS data © Crown copyright and database right 2026.
Planning history at this site
1 other application at this property, newest first.
Source: Trafford
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For applicants and trades
Contractors near this project
Find contractors for extensions near this site- Undisputed Waste ServicesVerifiedManchesterHouse clearanceGarage clearance6.8 mi
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Planning something similar?
See what the council approved and refused for two-storey and first-floor extensions on your street. Pick your home and get the evidence before you pay for drawings.