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Planning application

Second Floor 16 Conduit Street London W1S 2XL

Awaiting decision Westminster 26/01480/NMA Non-material amendments

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.

  • 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)

    Submitted 4 Mar 2026 Full applications
  • 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)

    Submitted 24 Feb 2026 Lawful development

Timeline

Dates from the published record

  1. 9 Mar 2026

    Received by Westminster

  2. 21 Jul 2026

    Added to PlanIndex

  3. 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

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See their track record

Documents

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 documents

What 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

    26/01398/ADFULL Submitted 4 Mar 2026 50 yards away

    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

    26/01173/CLOPUD Submitted 24 Feb 2026 50 yards away

    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

    26/02839/ADFULL Submitted 29 Apr 2026 50 yards away

    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

    26/05695/ADFULL Submitted 19 Aug 2026 50 yards away

    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

    26/02841/FULL Submitted 29 Apr 2026 50 yards away

    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

    25/05998/FULL Submitted 22 Aug 2025 50 yards away

    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 docs
    Several homes

In Westminster

  • 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.

    Received 11 Sep, published by the council 21 Sep 2026 Amendments
  • 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.

    Received 11 Sep, published by the council 21 Sep 2026 Amendments
  • 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.

    Received 11 Sep, published by the council 18 Sep 2026 Amendments
  • 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.

    Received 10 Sep, published by the council 17 Sep 2026 Amendments
  • 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)

    Received 10 Sep, published by the council 17 Sep 2026 Amendments