Planning application
28 Dorset Street London W1U 8AR
Works: Extension Domestic
Read from the description, not a valuation. How we read the register
Permission granted. Work must normally begin within three years of the decision or the permission lapses.
Proposal
Amendments to planning permission dated 22nd May 2024 (RN:23/07147/FULL) for Use of office accommodation (Class E) to a single residential dwelling (Class C3) including rebuilding of rear extension at rear lower ground floor level, provision of external plant within rear courtyard; and other associated works, all in connection with the land use swap with 1-2 Berkeley Mews namely, to amend the description of development in so far as it refers to the location of the approved plant.
As published by the council, reference 25/06072/NMA
Application record
- Reference
- 25/06072/NMA
- Type
- Non-material amendments
- Status
- Decided
- Decision
- Granted As published: Application Permitted
- Received
- 26 Aug 2025
- Validated
- 4 Sep 2025
- Decided
- 29 Sep 2025
- Ward
- Marylebone
- Decision by
- Delegated Decision
- Postcode
- W1U 8AR
Site history
Applications at this address on the Westminster register
This site has had 4 applications since 2025: 3 approved, 0 refused.
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26/00965/ADFULL Awaiting decision
28 Dorset Street London W1U 8AR
Detailed drawings (including elevation and section drawings) of the new windows (including window profiles and glazing bars at 1:10 and 1:5) and front door (at 1:10), double glazing to be slimline in character and metal balconettes (at 1:10) pursuant to condition 4 of planning permission dated 14th November 2025 (RN:25/06073/FULL)
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25/06705/ADFULL Granted
28 Dorset Street London W1U 8AR
Detailed drawings including elevation and section drawings of the new front basement area steps pursuant to condition 5 of planning permission dated 22nd May 2024 (RN: 23/07147/FULL)
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25/06073/FULL Granted
28 Dorset Street London W1U 8AR
Variation of Condition 1 of planning permission dated 22nd May 2024 (RN:23/07147/FULL) for the Use of office accommodation (Class E) to a single residential dwelling (Class C3) including rebuilding of rear extension at rear lower ground floor level, provision of external plant; and other associated works, all in connection with the land use swap with 1-2 Berkeley Mews (RN:23/07126/FULL), NAMELY; the relocation of the condenser from the rear courtyard to the main roof and removal of the existing front bay window.
Timeline
Dates from the published record
-
26 Aug 2025
Received by Westminster
-
4 Sep 2025
Validated
Checked as complete and ready for consideration.
-
29 Sep 2025
Decision issued: Application Permitted
-
21 Jul 2026
Added to PlanIndex
Who's behind it
Company information only, from the register and Companies House
Newmark LLP Agent
921 applications on PlanIndex · across 40 councils · 97% granted
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See their track recordDocuments
Plans, drawings, consultee responses and the officer's report
12 documents on file for this application
A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.
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Open the documentsWhat this grant of permission means
Westminster granted permission on 29 September 2025, 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 amendment applications
An amendment application makes limited changes to a permission that already exists; anything beyond modest adjustment needs a fresh application. More in our guide to planning application types.
Nearby applications
Within 0.3 miles
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28 Dorset Street London W1U 8AR
Variation of Condition 1 of planning permission dated 22nd May 2024 (RN:23/07147/FULL) for the Use of office accommodation (Class E) to a single residential dwelling (Class C3) including rebuilding of rear extension at rear lower ground floor level, provision of external plant; and other associated works, all in connection with the land use swap with 1-2 Berkeley Mews (RN:23/07126/FULL), NAMELY; the relocation of the condenser from the rear courtyard to the main roof and removal of the existing front bay window.
Granted Full applications Extension Windows or glazing 32 docsDomestic -
28 Dorset Street London W1U 8AR
Detailed drawings including elevation and section drawings of the new front basement area steps pursuant to condition 5 of planning permission dated 22nd May 2024 (RN: 23/07147/FULL)
Granted Full applications 8 docs -
28 Dorset Street London W1U 8AR
87% historically approved · decision due ~13 Apr
Detailed drawings (including elevation and section drawings) of the new windows (including window profiles and glazing bars at 1:10 and 1:5) and front door (at 1:10), double glazing to be slimline in character and metal balconettes (at 1:10) pursuant to condition 4 of planning permission dated 14th November 2025 (RN:25/06073/FULL)
Awaiting decision Full applications Windows or glazing 19 docs -
Flat 2 70 Gloucester Place London W1U 8HP
Internal alterations including refurbishments; replacement of sound insulation within the floor structure; new kitchen and bathroom fittings; electrical and mechanical systems upgraded; and other associated works.
Refused Heritage and listed buildings 12 docs -
Flat 4 Second Floor 66 Gloucester Place London W1U 8HW
Internal alterations to the second and third floor duplex property with the inclusion of a new boiler flue penetration to the rear addition.
Granted Heritage and listed buildings 12 docs -
70 Gloucester Place London W1U 8HP
90% historically approved · decision due ~5 Jan
Waterproofing of underpavement vaults using cavity membrane system.
Awaiting decision Heritage and listed buildings 8 docs
Other amendment applications
In Westminster
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26/06232/NMA Awaiting decision
37 Trevor Place London SW7 1LE
Amendments to planning permission dated 17th July 2026 (RN 26/03030/FULL) for the Alterations including enlargement of louvres and installation of new plant in basement; landscaping of roof terrace; second floor windows replaced with door sets; partial demolition at ground and first floor levels to create new lightwell and landscaped courtyard. NAMELY, addition of a free-standing sauna to the second-floor roof terrace.
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26/06256/NMA Awaiting decision
Queens Court Queensway London W2 4QN
Amendments to planning permission dated 21st May 2026 (RN:25/05013/FULL) for Variation of conditions 1, 3, 8, 9 and 17 of planning permission dated 11th May 2022 (RN 18/09765/FULL) for the Change of use of rear part of Queensway Market to Retail, Financial and Professional services, Office and Restaurant (within Class E) use and 5 residential units facing Princes Court, reconfiguration of retail units along Queensway including introduction of Retail uses at Nos.23 and 33 (current entrances to Queensway Market) and use of Nos.25 and 41-43 Queensway as Restaurant uses, installation of new shopfronts to Nos.23 to 43 Queensway 23-43, erection of infill extension to rear at ground floor level, erection of two new pavilion structures for Retail use and associated new hard and soft landscaping on land between Queens Court and Princes Court, installation of green roofs, rooflights and mechanical plant within enclosures to first floor level roofs between projecting rear wings of Queens Court installation of kitchen extract ducts to rear elevations, and associated cycle parking, waste storage, plant and other ancillary alterations ('Application 2'). Namely, to vary the hours of operation for the refrigeration plant controlled by condition 6.
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26/06251/NMA Awaiting decision
19 Cumberland Street London SW1V 4LS
Amendments to planning permission dated 20th March 2026 (RN:25/08960/FULL) for Lower ground floor rear infill extension with terrace above, replacement of rear first floor conservatory, new roof level rear single dormer with access to third floor roof terrace, alterations to windows and external refurbishment, namely the change of conservatory gable roof to a flat GRP roof.
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26/06201/NMA Awaiting decision
Almack House 28 King Street St James's London SW1Y 6QW
Amendments to planning permission dated 16th April 2026 (RN:26/01487/FULL) for Installation of a mechanical plant at lower ground floor and installation of two grilles to two lower ground floor windows, namely change to approved grille.
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26/06212/NMA Awaiting decision
10 - 11 Lancaster Gate London W2 3LH
Amendment to Condition 12 (Whole Life Carbon) of planning permission dated 19th April 2024 (RN 23/04044/FULL) for Change of use from hotel to residential use (Class C3) with associated internal alterations to create 11 new units and external alterations comprising reconfiguration and recladding of the rear extension and restoration of the existing building. Namely to include additional requirement to evidence and justify where benchmarks cannot be achieved, consider mitigation measures and if none, evidence that all mitigation measures have been exhausted. (Linked with RN 26/06213/ADFULL)