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Planning application

DM/26/00310/CPO

Maple Tree Seaton Lane Seaton Seaham SR7 0LP

Granted County Durham Certificate of Lawfulness Proposed Opera

Proposal

Single storey rear extension

As published by the council, reference DM/26/00310/CPO

Timeline

Dates from the published record

  1. 6 Feb 2026

    Received by County Durham

  2. 12 Feb 2026

    Validated

    Checked as complete and ready for consideration.

  3. 1 Apr 2026

    Decision issued: Approved

  4. 20 Jul 2026

    Added to PlanIndex

What a grant of permission means

The process from here

Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.

Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.

About lawful development applications

How this application type works

A lawful development certificate is a legal determination, not a planning judgement. It asks the council to confirm either that existing use or works are lawful, often through the passage of time, or that a proposal would not need planning permission at all. The applicant must prove the facts; the merits of the scheme are not considered.

More on lawful development applications in our guide

Nearby applications

Within 500 metres

  • DM/26/01331/FPA Awaiting decision

    1 South View Seaton Lane Seaton Seaham SR7 0LW

    Two storey side extension and rear first-floor extension, render external walls, demolish garage

    27 May 2026 49m away Full applications
  • 24/00756/CAA Decided

    Land To The East Of The Meadows Seaton SR7 0QB

    Full planning application for the development of 75no. new homes (Use Class C3) including affordable homes and associated access, landscaping and infrastructure (as amended) - Appeal Received. Reference DM/22/00039/FPA

    18 Apr 2024 171m away Outline
  • DM/25/02712/TPO Granted

    Burnbrae The Village Seaton Seaham SR7 0NA

    Elm (T1) - crown lift to provide 4m clearance and remove deadwood - amended description

    30 Sep 2025 304m away Trees
  • DM/21/01034/FPA Granted

    13 Seaton Crescent Seaham SR7 0JW

    Ground floor bay window and side porch (amended description)

    23 Mar 2021 365m away Full applications

In County Durham

  • DM/26/01728/CPO Awaiting decision

    East Farm House 127 Manor Road Medomsley Consett DH8 6QL

    Certificate of Lawfulness for the proposed change of use from a children's care home to an adults' care home (Use Class C2) for up to four adults with special needs, including associated internal alterations.

    6 Jul 2026 Lawful development
  • DM/26/01088/CPO Granted

    16 Wackerfield Darlington DL2 3AP

    Installation of roof-mounted solar photovoltaic (PV) panels and associated works

    29 Apr 2026 Lawful development
  • DM/26/01703/CPO Awaiting decision

    Aycliffe Village Primary School North Terrace Aycliffe Village Newton Aycliffe DL5 6LG

    Instillation of timber playground equipment.

    2 Jul 2026 Lawful development
  • DM/26/00515/CEU Refused

    17 Generation Place Consett DH8 5XT

    Use of dwellinghouse (C3) as a children's home for one child with two carers present at all times

    3 Mar 2026 Lawful development
  • DM/26/01642/CEU Awaiting decision

    17 Boyd Street Durham DH1 3DP

    Certificate of lawfulness for use of the property as a House in Multiple Occupation (Use class C4).

    25 Jun 2026 Lawful development