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240 Ashridge Way Sunbury-on-Thames TW16 7RS

26/00152/CPDCert. of Lawful Proposed Use and DevAwaiting decision
Outline / PiP
Site boundary (council red line)

Proposal

Certificate of lawfulness for proposed hip to gable roof alteration and rear facing dormer. 3 no. roof lights on front plane of roof.

Received
19 February 2026
Decision due
16 April 2026
Decision level
Delegated (officer decision)
Ward
Sunbury Common
Agent
DH Design and Build Ltd
  1. Received19 Feb
  2. Validated19 Feb
  3. Consult.18 Mar
  4. Target16 Apr
  5. Decided

Have your say

Comments close on 18 March.

Comment on the council's siteDocuments (10)

About this application

This is an outline application for a dormer extension at 240 Ashridge Way Sunbury-on-Thames TW16 7RS. Spelthorne has handled 482 applications of this type. It has been with the council since 19 February 2026 and is still awaiting a decision. There are no previous applications recorded at this address. In the past year there have been 25 applications across Sunbury Common. We hold 329 applications in total for the TW16 postcode area.

88% of outline applications at Spelthorne 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.See what's approved near your address

Application details

Postcode
TW16 7RS
Application type
Cert. of Lawful Proposed Use and Dev
Scale / size
Small
Parish
Sunbury Common And Ashford Common ED

Planning application dates

Date validated
19 February 2026
Consultation expiry
18 March 2026
Last date for comments
18 March 2026

Applicant and agent

Agent
DH Design and Build Ltd
Architect profile
D.H. DESIGN & BUILD LIMITED
Agent address
35 New Haw Road New Haw KT15 2BZ

Planning decision

Statutory period
56 days

Publicity

Last advertised
25 February 2026
Advertisement expiry
18 March 2026

Additional information

Comments
0
Documents
10
Constraints
7

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Flood zone 2: Medium probability (rivers and sea)
Also checked, none recorded (24)

flood storage areas, conservation areas, listed buildings, Article 4 directions, tree preservation orders, 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: Spelthorne

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Before the decision

You may need a flood risk assessment. Drainage & flood risk consultants near this site

The site is in flood zone 2 (Environment Agency).

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