Planning application
Second Floor 16 Conduit Street London W1S 2XL
Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.
Proposal
Amendment of planning permission dated 7 June 2016 (RN: 15/06533/FULL) for 'Dual/alternative use of the second floor for either office (Class B1a) or residential (Class C3) use (1 x 2 bedroom unit). Installation of 4 x external grilles at second floor level on the Mill Street elevation and 1 x external grille on Conduit Street elevation'. NAMELY to vary the wording of Condition 6 to allow the implementation of an alternative ventilation strategy.
As published by the council, reference 26/01480/NMA
Application record
- Reference
- 26/01480/NMA
- Type
- Non-material amendments
- Status
- Pending
- Received
- 9 Mar 2026
- Validated
- 9 Mar 2026
- Ward
- West End
- Postcode
- W1S 2XL
Site history
Applications at this address on the Westminster register
This site has had 3 applications since 2026.
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26/01398/ADFULL Awaiting decision
Second Floor 16 Conduit Street London W1S 2XL
Details of waste storage arrangements pursuant to Condition 5 of the planning permission dated 7 June 2016 (RN: 15/06533/FULL)
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26/01173/CLOPUD Awaiting decision
Second Floor 16 Conduit Street London W1S 2XL
To confirm the lawfulness of proposed residential use on the second floor of the property, in line with planning permission (RN 15/06533/FULL)
Timeline
Dates from the published record
-
9 Mar 2026
Received by Westminster
-
21 Jul 2026
Added to PlanIndex
-
Decision
Awaiting decision
Decision expected by 4 May 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.
Westminster took a median of 66 days over the applications it decided in the last year.
Who's behind it
Company information only, from the register and Companies House
hgh Consulting Ltd Agent
365 applications on PlanIndex · across 37 councils · 89% granted
Trade members see everything this firm has filed, how it was decided, and get an email the day it files again.
See their track recordDocuments
Plans, drawings, consultee responses and the officer's report
5 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.
Watch members (£5 a month) open the document list from here.
Open the documentsWhat happens while it is decided
This application is with Westminster for determination, against a statutory target of eight weeks. Over the last year Westminster decided amendment applications in a median of 54 days. More in our guide to how long planning decisions take.
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
-
Second Floor 16 Conduit Street London W1S 2XL
87% historically approved · decision due ~29 Apr
Details of waste storage arrangements pursuant to Condition 5 of the planning permission dated 7 June 2016 (RN: 15/06533/FULL)
Awaiting decision Full applications 4 docs -
Second Floor 16 Conduit Street London W1S 2XL
86% historically approved · decision due ~21 Apr
To confirm the lawfulness of proposed residential use on the second floor of the property, in line with planning permission (RN 15/06533/FULL)
Awaiting decision Lawful development 9 docs -
6 - 8 Mill Street London W1S 2AZ
87% historically approved · decision due ~24 Jun
Detailed drawings of the fixed glazed awning and retractable awning pursuant to condition 3 of planning permission dated 17th March 2026 (RN: 25/06233/FULL).
Awaiting decision Full applications Windows or glazing 3 docs -
Sofia House 19 Conduit Street London W1S 2BH
89% historically approved · decision due ~14 Oct
Details of the pre-demolition audit in accordance with section 4.6 of the GLA's adopted Circular Economy; pursuant to condition 12 of Planning Permission dated 31 July 2026 (26/02841/FULL)
Awaiting decision Demolition -
Sofia House 19 Conduit Street London W1S 2BH
87% historically approved · decision due ~24 Jun
Erection of five storey rear extension including extension of lower ground floor, roof level alterations, including new dormers and extension to rear, installation of plant and alterations associated with refurbishment of building
Awaiting decision Full applications Extension Loft or dormer 55 docs -
4 Mill Street London W1S 2AX
Erection of a rear roof extension at third floor level with a sedum roof to the rear; replacement of windows at second floor level with double glazing timber windows; replacement of door and window to the existing rear first floor extension with double glazing timber windows including replacement of roofing; and associated works all in connection with the use of the first to third floor as four flats (Class C3)
Granted Full applications New dwelling Extension +1 29 docsSeveral homes
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.
-
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)