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Planning application

10 Park Avenue Thornaby Stockton-on-Tees TS17 7JN

Awaiting decision Stockton-on-Tees 26/1538/CPL Certificate Proposed Lawful Use/Dev

Works: Extension Loft or dormer

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 the erection of a dormer extension to the side. (loft conversion)

As published by the council, reference 26/1538/CPL

Application record

Reference
26/1538/CPL
Type
Certificate Proposed Lawful Use/Dev
Status
Awaiting decision
Received
10 Aug 2026
Validated
12 Aug 2026
Ward
Mandale & Victoria
Parish
Thornaby Town Council
Decision by
Delegated
Postcode
TS17 7JN

Timeline

Dates from the published record

  1. 10 Aug 2026

    Received by Stockton-on-Tees

  2. 12 Aug 2026

    Validated

    Checked as complete and ready for consideration.

  3. 17 Aug 2026

    Added to PlanIndex

  4. Decision

    Awaiting decision

    Decision expected by 7 October 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

    Stockton-on-Tees took a median of 60 days over the applications it decided in the last year.

Documents

Plans, drawings, consultee responses and the officer's report

7 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.

Watch members (£5 a month) open the document list from here.

Open the documents

What happens while it is decided

This application is with Stockton-on-Tees for determination, against a statutory target of eight weeks. Over the last year Stockton-on-Tees decided lawful development applications in a median of 59 days. More in our guide to how long planning decisions take.

About lawful development applications

A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.

Nearby applications

Within 0.3 miles

  • 24 Park Avenue Thornaby Stockton-on-Tees TS17 7JN

    24/1233/FUL Submitted 15 Jul 2024 50 yards away

    Erection of detached double garage within rear garden

    Granted Full applications 11 docs

  • 32 Heslop Street Thornaby Stockton-On-Tees TS17 7HA

    26/1011/CPL Submitted 26 May 2026 100 yards away

    Certificate of lawfulness for the proposed change of use from dwellinghouse (C3) to a 5no bedroom HMO (C4) (for no more than six persons living together with shared facilities) (Window/door alterations to ground floor rear)

    Granted Lawful development Windows or glazing 12 docs
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  • 108 Acklam Road Stockton-on-Tees TS17 7JR

    26/1269/CPL Submitted 25 Jun 2026 100 yards away

    96% historically approved · decision due ~21 Aug

    Certificate of lawfulness for the proposed conversion of existing detached garage to storage area and cold room for online grocery business

    Awaiting decision Lawful development 8 docs

  • Harewood Primary School Eric Avenue Thornaby Stockton-on-Tees TS17 7JJ

    18/1198/LA Submitted 23 May 2018 100 yards away

    Single storey extension to the side.

    Granted Other Extension 10 docs
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  • 3 Imperial Avenue Thornaby TS17 7JG

    21/0110/FUL Submitted 14 Jan 2021 150 yards away

    Erection of extension to side, rear and front at ground floor under existing car port extension to include canopy to front

    Granted Full applications Extension 13 docs

  • 104 Mansfield Avenue Thornaby Stockton-On-Tees TS17 7HZ

    24/1352/X Submitted 31 Jul 2024 250 yards away

    Application to prune branches of 1no Sycamore (T1) towards the roof of 21 Salisbury Street of tree preservation order 869 (00.8.5.869)

    Granted Trees 5 docs

In Stockton-on-Tees

  • 26/1913/CPL Awaiting decision

    6 Railway Cottages Urlay Nook Road Eaglescliffe Stockton-on-Tees TS16 0JL

    Certificate of lawfulness application for the erection of single storey rear extension, part garage conversion and installation of rear ground floor window.

    Received 2 Oct, published by the council 5 Oct 2026 Lawful development
  • 26/1721/CPL Awaiting decision

    9 Burdon Garth Ingleby Barwick Stockton-on-Tees TS17 5AR

    Certificate of lawfulness for the erection of single storey rear extension.

    Received 7 Sep, published by the council 16 Sep 2026 Lawful development
  • 26/1572/CPE Awaiting decision

    The Barn Town End Farm Darlington Road Elton Stockton-On-Tees TS21 1AG

    Certificate of lawfulness application for the existing use of land as residential curtilage.

    Received 14 Aug, published by the council 29 Aug 2026 Lawful development
  • 26/1557/CPL Awaiting decision

    20 Westmoreland Grove Norton Stockton-On-Tees TS20 1PA

    Certificate of lawfulness for the erection of a dormer extension to the rear and roof light to the front and side (loft conversion).

    Received 12 Aug, published by the council 17 Aug 2026 Lawful development
  • 26/1035/CPE Refused

    38 Keithlands Avenue Norton Stockton-on-Tees TS20 2QP

    Certificate of lawfulness application for the existing use as a single dwellinghouse (C3)

    Received 28 May, published by the council 21 Jul 2026 Lawful development