Planning application
51 Heathcroft Avenue Sunbury-on-Thames TW16 7SR
Works: Loft or dormer Windows or glazing
Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.
Proposal
Certificate of lawfulness for proposed loft conversion with wraparound roof dormer from joint hip-end pitched dormer, and flat roof rear dormer, velux window on front roof slope and obscured non-operable side window
As published by the council, reference 26/00856/CPD
Application record
- Reference
- 26/00856/CPD
- Status
- Awaiting decision
- Received
- 11 Aug 2026
- Validated
- 11 Aug 2026
- Ward
- Sunbury Common
- Parish
- Sunbury Common And Ashford Common ED
- Decision by
- Delegated Decision
- Postcode
- TW16 7SR
Timeline
Dates from the published record
-
11 Aug 2026
Received by Spelthorne
-
19 Aug 2026
Added to PlanIndex
-
Decision
Awaiting decision
Decision expected by 6 October 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.
Spelthorne took a median of 56 days over the applications it decided in the last year.
Who's behind it
Company information only, from the register and Companies House
Agent on file, an architecture practice registered in Ruislip
42 applications on PlanIndex · across 13 councils · 69% granted
Trade members see who it is, their full track record, and every application they have filed.
See who's behind itDocuments
Plans, drawings, consultee responses and the officer's report
9 documents on file for this application
A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.
Trade members open them from here.
Open the documentsWhat happens while it is decided
The process from here
This application is with Spelthorne for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.
The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.
About this record
Reading the register
This page mirrors an entry on the statutory planning register that Spelthorne is required to keep. The published feed for this record does not state which type of application it is, which is common for older entries and for some council systems; the register entry on the council portal will say, alongside the case officer and any consultation dates.
Every planning application follows the same broad path: submission, validation, publicity, then a decision by officers or committee. Our guide to planning application types explains the common types and what each can approve.
Nearby applications
Within 500 metres
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51 Heathcroft Avenue Sunbury-on-Thames TW16 7SR
86% historically approved · decision due ~6 Oct
Prior Approval Notification for a single storey rear extension extending 5.5 metres beyond the rear wall of the original house, with a maximum height of 2.93 metres and a height of 2.67 metres to the eaves.
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49 Heathcroft Avenue Sunbury-on-Thames TW16 7SR
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57A Staines Road West Sunbury-on-Thames TW16 7AH
Proposed rear and roof extensions to facilitate conversion of the upper parts in 6 no. residential dwelling flats (2x 1-bed, 3 x 2-ded and 1 X 3-bed) with accociated landscaping, parking and bin and cycle storage.
Granted Full applications New dwelling Extension 26 docsDomestic -
Crownage Court 99 Staines Road West Sunbury-on-Thames TW16 7AE
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Decided Conditions 13 docs