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Planning application

DM/25/03048/CEU

Sidegate House Sidegate Durham DH1 5SY

Granted County Durham Certificate of Lawfulness Existing Use

Proposal

Lawful development certificate to confirm that the development has commenced to trigger the commencement of the planning consent DM/21/01876/FPA (Demolition of existing house and construction of replacement house on same footprint) and DM/23/02530/FPA (Demolition of outbuildings, conservatory and retaining walls, erection of two storey side extension to south elevation, single storey front and side extensions to north and east elevations, raise roof height to facilitate first floor accommodation, alterations to openings and internal alterations)

As published by the council, reference DM/25/03048/CEU

Timeline

Dates from the published record

  1. 29 Oct 2025

    Received by County Durham

  2. 30 Oct 2025

    Validated

    Checked as complete and ready for consideration.

  3. 16 Jan 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/25/02202/TCA Awaiting decision

    15 Sidegate Durham DH1 5SY

    Birch (T1) prune back from property by 2-3m

    11 Aug 2025 46m away Trees
  • DM/26/00146/TCA Granted

    Radisson Blu Hotel Durham Framwelgate Waterside Durham DH1 5TA

    G002 common beech - reduce to 3m hedge G003 mixed species -Fell all ash to ground level T001 Goat willow - Remove low leaning limb over carpark T002 Black Elder - Prune to facilitate 1m clearance from streetlight T003 hawthorn - Prune to facilitate 1m clearance from streetlight T004 Sycamore - Fell to ground level T005, T006, T007, T008, T010, T012, T016 Common ash - Fell to ground level T009, T011 Silver birch - Fell to ground level T013 Grey Willow - Fell to ground level T014 Goat Willow - Reduce northern canopy by 1.5m to reduce strain on union, Crown Lift to 5.2 m to facilitate vehicular access T015 Grey willow - Prune to facilitate 1m clearance from streetlight T017 Sycamore - Prune to facilitate 1m clearance from streetlight

    20 Jan 2026 80m away Trees
  • DM/21/01375/TCA Granted

    9 Sidegate Durham DH1 5SY

    Reduce height by up to 2.5m to Conifer Screen (T1) and remove lowest 3 branches overhanging lawn/vegetable plot to 1no. Birch (T2)

    16 Apr 2021 84m away Trees
  • DM/26/01735/DRC Awaiting decision

    7 Diamond Terrace Durham DH1 5SX

    Discharge of conditions 5 (materials) pursuant to DM/26/00504/FPA

    6 Jul 2026 85m away Conditions
  • DM/26/01185/DRC Granted

    7 Diamond Terrace Durham DH1 5SX

    Discharge of conditions 3 (submisison of tree protection details) and 4 (railing details) pursuant to DM/26/00504/FPA (amended description)

    11 May 2026 85m away Conditions
  • DM/26/00504/FPA Granted

    7 Diamond Terrace Durham DH1 5SX

    Two storey side, rear and front extensions, sliding gate and garden alterations including railings, retaining walls and fencing (Resubmission of DM/25/00643/FPA)

    2 Mar 2026 85m 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