Skip to content

15 Colebrook Road Timperley Altrincham WA15 6NW

119493/HHA/26Householder applicationRefused
Householder

Refused on 2 September 2026

Council decision: Refusal2 reasons for refusal

Approximate location: the centre of the postcode, not the exact property.

Proposal

Erection of a part single/part two storey rear extension with garage conversion.

Received
2 July 2026
Ward
Timperley Central
Agent
Cube Design Solutions
  1. Received2 Jul
  2. Validated2 Jul
  3. Consult.29 Jul
  4. Target
  5. Decided2 Sep

Decided in 62 days (council typically 56)

About this application

This is a full planning application for a two storey rear extension at 15 Colebrook Road Timperley Altrincham WA15 6NW. Trafford has handled 2,373 applications of this type. This one was decided in 62 days, 6 days longer than Trafford's typical decision time. There are no previous applications recorded at this address. In the past year there have been 30 applications across Timperley Central. 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

  1. The proposed extension, by reason of its scale, massing and design, results in an excessively large form of development that is disproportionate to the existing property, appearing incongruous and overly dominant within the plot, detrimental to the character and appearance of the host property and being contextually inappropriate within the surrounding area. As such, the proposal would be contrary to Policy JP-P1 of the Places for Everyone Joint development Plan, the Council's adopted Supplementary Planning Document SPD4: A Guide for Designing House Extensions and Alterations and the National Planning Policy Framework.
  2. The proposed rear extension, by reason of its scale, massing, design and close proximity to the common boundary with No. 11a Colebrook Road, would have an unduly overbearing impact and result in an undue sense of enclosure in relation to the rear main habitable room windows and rear amenity spaces of this neighbouring property. The proposed development would therefore be detriment to the amenity that the occupants of this neighbouring dwelling 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 and Alterations and policies in the National Planning Policy Framework.

From the council's decision notice.

Application details

Postcode
WA15 6NW
Application type
Householder application
Scale / size
Small

Planning application dates

Date validated
2 July 2026
Consultation expiry
29 July 2026
Neighbour consultation start
8 July 2026
Neighbour consultation end
29 July 2026
Last date for comments
29 July 2026

Applicant and agent

Agent
Cube Design Solutions
Architect profile
CUBE DESIGN SOLUTIONS LTD
Agent address
4 Acresfield Road Timperley Altrincham WA15 6HU

Additional information

Planning Portal ID
PP-15055549
Comments
0
Documents
15
Constraints
7

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

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.

Source: Trafford

Track this application

Get email alerts when there is a planning decision or status change.

Get email alerts near WA15

New planning applications delivered to your inbox daily.

Around this site

Discuss this application on r/PlanningPermissionUK

For applicants and trades

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.

See what gets approved on your streetBuying this property? Report on this address