St Cuthberts House Diamond Terrace Durham DH1 5SU
Approved on 4 December 2025
Certificate of Lawfulness Existing
Boundary © HM Land Registry, © Ordnance Survey · details
This information is subject to Crown copyright and database rights 2026 and is reproduced with the permission of HM Land Registry. The polygons (including the associated geometry, namely x, y co-ordinates) are subject to Crown copyright and database rights 2026 Ordnance Survey AC0000851063. Conditions of use.
Proposal
Application for certificate of lawful existing use in relation to Demolition of the Mainstreet USA offices, and the erection of a new build 2-4 storey workplace building and associated landscaping as per planning references DM/21/03682/FPA and DM/22/02167/NMA.
- Received
- 18 July 2025
- Decision level
- Certificate of Lawfulness Existing
- Council
- Durham County Council
- Ward
- Elvet, Gilesgate And Shincliffe
- Agent
- MawsonKerr Architects Ltd
- ReceivedReceived18 Jul
- ValidatedValidated24 Sep
- Consult.Consultation29 Oct
- TargetTarget Date24 Dec
- DecidedDecided4 Dec
Decided in 71 days (council typically 56)
About this application
This is an application to amend a permission at St Cuthberts House Diamond Terrace Durham DH1 5SU. Durham has handled 488 applications of this type. This one was decided in 139 days, 12 weeks longer than Durham's typical decision time. The site is in the Durham City conservation area, with 1 listed building nearby. There are no previous applications recorded at this address. In the past year there have been 119 applications across Elvet, Gilesgate And Shincliffe. We hold 1,246 applications in total for the DH1 postcode area.
96% of amendment applications at Durham County 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.Planning something similar? See what gets approved on your street
Application details
- Postcode
- DH1 5SU
- Application type
- Certificate of Lawfulness Existing Use
- Scale / size
- Medium
- Parish
- City Of Durham
Planning application dates
- Date validated
- 24 September 2025
- Consultation expiry
- 13 November 2025
- Consultation start
- 8 October 2025
- Consultation end
- 29 October 2025
- Neighbour consultation start
- 8 October 2025
- Neighbour consultation end
- 29 October 2025
- Last date for comments
- 13 November 2025
- Target decision date
- 24 December 2025
- Decision issued
- 5 December 2025
- Permission expires
- 5 December 2030
Applicant and agent
- Agent
- MawsonKerr Architects Ltd
- Agent address
- 1 Charlotte Square Newcastle Upon Tyne NE1 4XF United Kingdom
Planning decision
- Statutory period
- 91 days
Publicity
- Site notice start
- 23 October 2025
- Site notice end
- 13 November 2025
Additional information
- Planning Portal ID
- PP-14184526
- Documents
- 8
Site constraints
Designations that overlap or adjoin the site outline.
- Conservation area: Durham City
- Flood zone 1: Low probability (rivers and sea)
Not published by this council, so not checked: Article 4 directions and tree preservation orders. Ask the council if these matter.
Also checked, none recorded (20)
flood storage areas, 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: Durham
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Around this site
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