St Cuthberts House Diamond Terrace Durham DH1 5SU Data via plota.co.uk

DM/25/01967/CEU - Certificate of Lawfulness Existing Use Approved

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 and . Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
18 Jul 2025
✓
Validated
24 Sept 2025
✓
Consultation
8 Oct 2025
✓
Approved
4 Dec 2025

Approved on 4 Dec 2025 · Certificate of Lawfulness Existing · Last checked 12 Oct 2026

Documents 2

Decision & officer reports 1

PDF DELEGATED REPORT Delegated Report · 5 Dec 2025 View ↗

Other documents 1

PDF SITE NOTICE Site Notice · 23 Oct 2025 View ↗

All documents on the council site ↗

Associated applications 4

  • LawfulnessApprovedDM/25/01967/CEUThis application
    Application for certificate of lawful existing use in relation to Demolition of the Mainstreet USA offices, and the erection…
  • FullApprovedcouncil archive

    Conditions 10, 12, 16 awaiting decision · , varied

Site constraints 8

Grade II listed: Fram Well Head
List entry 1120637 · 20 m away
Listed building consent is needed for work that affects the special interest of a listed building, inside or out, on top of planning permission. Setting can be a consideration for buildings nearby; there is no fixed radius.
Historic England ↗
Coal mining development high risk area
Recorded coal mining features at or near the surface. Most planning applications here need a coal mining risk assessment.
From the Mining Remediation Authority, formerly the Coal Authority. The development high risk area marks recorded coal mining features at or near the surface: mine shafts and adits, shallow workings, mine gas and former opencast sites. Most planning applications there need a coal mining risk assessment; householder applications, changes of use and some minor works are exempt. Mine entry positions come from old plans and can be out by several metres, and unrecorded workings can exist anywhere in the coalfield.
Coal mining risk assessments ↗
Durham City conservation area
Demolition needs planning permission and permitted development is restricted.
The council must give weight to preserving or enhancing the area's character and appearance. Not every council has published its boundaries as open data.
Also on the record
Radon affected area, class 2; Local nature reserve 446 m away: Flass Vale; Inside the Durham built-up area; Green belt 65 m away: Tyne and Wear; Air quality management area 76 m away: Durham County Council Air Quality Management Area.
Not affected
Outside flood zones 2 and 3 · No scheduled monument at the site

Checked on 12 October 2026. Historic England, the Environment Agency, Natural England, the Mining Remediation Authority, the British Geological Survey and UK Health Security Agency (radon, contains BGS materials © UKRI) and council datasets, Open Government Licence. A boundary can run through a site and the council holds the definitive record: confirm with the council before relying on this.

Building

Floor area1,341 m² (14,434 sq ft)
Energy ratingB (asset rating 30)
UseB1 Offices and Workshop businesses
HeatingMixed-mode with Natural Ventilation

From the energy performance certificate lodged in February 2020, the latest held for this property. The building may have changed since. View the certificate

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Important details

Council
Durham
Application type
Certificate of Lawfulness Existing Use
Postcode
DH1 5SU
Received
18 Jul 2025
Validated
24 Sept 2025
Ward
Elvet, Gilesgate And Shincliffe
Parish
City Of Durham
Case officer
Show
Target decision
24 Dec 2025
Decision
Approved
Decision date
4 Dec 2025
Decision level
Certificate of Lawfulness Existing
Applicant
Show
Agent
MawsonKerr Architects Ltd
Freehold owner
Show

How this decision compares

Decided in 71 days from validation, 15 days slower than Durham's median of 56 for lawful development certificates. Approved, as 76% of lawful development certificates here are.

64%decided within 8 weeks
76%approved
84decided in the last year

Plota live figures for lawful development certificates decided by Durham in the last twelve months, from validation. Durham decision record →

Public comments

No public comments yet.

19 neighbours consulted · Last counted 12 Oct 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-14184526
Planning Portal ref
PP-14184526
Neighbours
8 Oct 2025
Consultation
8 Oct 2025
Comments by
13 Nov 2025
Site or press notice
23 Oct 2025
Statutory expiry
24 Dec 2025
Env. assessment
No

Historical activity at this location

29 previous applications on record - archival context, not part of the live application.

This property

Previous applications at this address

2025
Submission of details pursuant to Conditions 10, 12 and 16 of planning permission DM/21/0…
DM/25/01962/DRC
2024 Approved
Partial Discharge of condition 8 (Construction Management Plan) pursuant to DM/21/03682/F…
DM/24/00882/DRC
2022 Approved
Non-material amendment of DM/21/03682/FPA (new workspace building) to various conditions…
DM/22/02167/NMA
2021 Approved
Demolition of the Mainstreet USA offices, and the erection of a new build 2-4 storey work…
DM/21/03682/FPA
Within ~100m

Nearby activity

2025 Approved
Land To The West Of National Probation Service Diamond Terrace Durham DH1 5SU
Remove 2 branches which are overhanging the building and doorway. Air Con Units - Cut bra…
DM/25/02929/TCA
2025
15 Sidegate Durham DH1 5SY
Birch (T1) prune back from property by 2-3m
DM/25/02202/TCA
2025
7 Diamond Terrace Durham DH1 5SX
Two storey side, rear and front extensions and demolition of garage. Alterations to garden
DM/25/00643/FPA
2024 Approved
8 Sidegate Durham DH1 5SY
T1 - Sycamore - Crown reduction by no more than 20% in volume, and reshape by 4-5m (amend…
DM/24/01682/TCA
2023 Approved
Sidegate House Sidegate Durham DH1 5SY
Demolition of outbuildings, conservatory and retaining walls, erection of two storey side…
DM/23/02530/FPA
2024 Approved
8 Sidegate Durham DH1 5SY
T1 Ash - Fell to ground level
DM/24/00320/TCA
2023 Approved
8 Sidegate Durham DH1 5SY
T1 - Poplar - Pollard to a height of approximately 8 metres
DM/23/03434/TCA
2023 Withdrawn
Land To The East Of Diamond Terrace Durham DH1 5SX
Car park with associated landscaping
DM/23/01772/FPA
2023 Approved
9 Sidegate Durham DH1 5SY
T1. Sycamore - Crown reduce and reshape by 3m
DM/23/01805/TCA
2023 Approved
Radisson Blu Hotel Durham Framwelgate Waterside Durham DH1 5TA
Beech Tree prune back branches overhanging 9 Sidegate, back to the boundary
DM/23/01806/TCA
2021 Approved
Sidegate House Sidegate Durham DH1 5SY
Demolition of existing house and construction of replacement house on same footprint
DM/21/01876/FPA
2022 Approved
1 Diamond Terrace Durham DH1 5SX
One and a half storey extension to side linking 1 Diamond Terrace to approved development…
DM/22/01027/FPA
2021 Refused
1 Diamond Terrace Durham DH1 5SX
Change of use from dwelling (use class C3) to house in multiple occupation (use class C4).
DM/21/04212/FPA
2021 Approved
16 And 17 Sidegate Durham DH1 5SY
Removal of existing single storey rear extensions to two C4 HMOs 16 & 17 Sidegate, erecti…
DM/21/00421/FPA
2021 Approved
9 Sidegate Durham DH1 5SY
Reduce height by up to 2.5m to Conifer Screen (T1) and remove lowest 3 branches overhangi…
DM/21/01375/TCA
2020 Approved
Sidegate House Sidegate Durham DH1 5SY
Felling and Removal or 40% Crown Reduction of 1No Ash Tree plus Felling and Removal or 30…
DM/20/02187/TCA
2020 Approved
8 Sidegate Durham DH1 5SY
Fell 1 no. Sycamore (T1) and 1no. Ash (T2)
DM/20/00860/TCA
2020 Approved
Overflow Car Park Railway Station Station Approach Durham DH1 4RB
Fell 2no. Sycamore trees (T2, T11), 1 group and 6no. Alder trees (G1, T1, T3, T4, T6, T10…
DM/20/00073/TCA
2019 Approved
Land At The Junction Of Diamond Terrace And Framwelgate Peth Durham
To prune trees located along a 200m stretch of the railway boundary in line with the rear…
DM/19/03813/TCA
2018 Approved
8 Sidegate Durham DH1 5SY
Fell 1no Ash tree
DM/18/03194/TCA
2018 Approved
Fram Well House Diamond Terrace Durham DH1 5SU
Crown reduce 1no Ash tree by 50%, crown reduce 1no Ash tree by 40% and fell 1no Sycamore…
DM/18/00044/TCA
2017 Approved
9 Sidegate Durham DH1 5SY
Crown reduce and reshape 1no. Sycamore tree by 4-5m
DM/17/02031/TCA
2017 Approved
15 Sidegate Durham DH1 5SY
Removal of branches of 3no. silver birch trees
DM/17/01488/TCA
2016 Approved
Land To The North Of Durham Railway Station Framwellgate Moor Durham
Listed Building Consent for the installation of a platform extension.
DM/16/03548/LB
2016 Approved
9 Sidegate Durham DH1 5SY
Prune 1no. Beech tree back from house by 3 - 4m
DM/16/00686/TCA
Durham
Planning Authority Score
5.2/10
Average
#137 of 296 councils
Relevant to this application:
Householder decisions

Durham ranks #190 out of 296 councils for householder decision speed. 48% of applications have the time limit extended, above the 41% national average. Householder applications are more likely to be approved here than most councils, with a 97% approval rate vs 90% nationally.

More permissive than most councils
97% approved vs 90% nationally
These figures are council-wide context, not a prediction for this application. View full council performance
Durham decision statistics
Based on MHCLG data, the year to March 2026
93%
Overall approval rate
Above avg (87%) #52 of 296
97%
Householder approved
Above avg (90%) #29 of 296
59%
Decided in 8 weeks
Below avg (63%) #190 of 296
48%
Extended time limit
Above avg (41%) #213 of 296
79%
Minor dwellings approved
95 decided (1-9 homes)
90%
Major dwellings approved
49 decided (10+ homes)
87%
Change of use approved
201 decided
1,706
Total decisions
113 refused in the year to March 2026
Source: MHCLG planning statistics · See full council rankings

Freehold boundary: © Crown copyright and database rights 2026, HM Land Registry. Polygons © Crown copyright and database rights 2026 Ordnance Survey 100026316. Conditions of use

Energy performance: Energy performance certificates from the Energy Performance of Buildings Register, Ministry of Housing, Communities and Local Government. Contains public sector information licensed under the Open Government Licence v3.0. © Crown copyright 2026.

Freehold owner: Information produced by HM Land Registry. © Crown copyright 2026. Source: HM Land Registry, UK and overseas companies that own property in England and Wales, September 2026 release.