Planning application
27 - 28 Newbury Street London EC1A 7HU
Works: Extension
Permission granted. Work must normally begin within three years of the decision or the permission lapses.
Proposal
Erection of a roof extension and partial change of use from Office (Class E) to create a residential unit (Class C3) and associated works.
As published by the council, reference 25/01371/FULL
Application record
- Reference
- 25/01371/FULL
- Type
- Full Planning Permission
- Status
- Decided
- Decision
- Approved
- Received
- 8 Oct 2025
- Validated
- 8 Oct 2025
- Decided
- 1 Jul 2026
- Ward
- Farringdon Within
- Decision by
- Delegated Decision
- Postcode
- EC1A 7HU
Timeline
Dates from the published record
-
8 Oct 2025
Received by City of London
-
1 Jul 2026
Decision issued: Approved
-
24 Jul 2026
Added to PlanIndex
Who's behind it
Company information only, from the register and Companies House
Block 9 Architects Agent, an architecture practice registered in Edinburgh
Active · incorporated 2014 · Edinburgh
3 applications on PlanIndex · across 3 councils
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See their track recordDocuments
Plans, drawings, consultee responses and the officer's report
39 documents on file for this application
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Open the documentsWhat this grant of permission means
City of London granted permission on 1 July 2026, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.
About full applications
A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.
Nearby applications
Within 500 metres
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3 Middle Street London EC1A 7JA
Refurbishment works compromising: (i) replacement of the existing windows. (ii) roof level extension. (iii) infill of courtyard, including rooflight.
Granted Full applications Extension Loft or dormer +1 13 docs -
3 Middle Street London EC1A 7JA
Submission of details pursuant to conditions 2, 4, 5 and 6 of planning permission 25/00568/FULL dated 23/10/2025.
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9 Newbury Street London EC1A 7HU
99% historically approved · decision due ~26 Aug
Extensions and alterations to the rear and interior of the existing office building (Use Class E) to provide (i) upgraded office space at lower ground and ground floors; (ii) conversion from office to one studio flat and one 1-bed dwelling (Use Class C3) at 1st to 3rd floors; and (iii) provision of a 1-bed dwelling within a newly created two storey roof extension at 4th and 5th floors with a roof terrace at 4th floor.
Awaiting decision Full applications Extension 22 docsDomestic -
Newbury House 10 - 13 Newbury Street London EC1A 7HU
100% historically approved · decision due ~18 Feb
Non-material amendment under Section 96A of the Town and Country Planning Act 1990 (as amended) to planning permission 22/00105/FULL dated 15 July 2022 to amend condition 16 to enable revisions to the internal layouts and reduction to southern curtain wall height.
Awaiting decision Amendments 19 docs -
Newbury House 10 - 13 Newbury Street London EC1A 7HU
Submission of a Fire Statement pursuant to condition 6 of planning permission 22/00105/FULL dated 15/07/2022.
Granted Conditions 10 docs -
Newbury House 10 - 13 Newbury Street London EC1A 7HU
100% historically approved · decision due ~30 Jan
Submission of details of a) Particulars and samples of all external materials and finishes; b) Details of the facade systems, including fenestration details, proposed for the roof extension; c) Details of the balustrades at roof level; and d) Details of the treatment of the ground floor frontage pursuant to condition 5 of planning permission 22/00105/FULL dated 15/07/2022.
Awaiting decision Conditions Extension Windows or glazing 42 docs
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