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Planning application

Ground Floor Seymour Leisure Centre Seymour Place London W1H 5TJ

Awaiting decision Westminster 26/03372/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

Amendments to planning permission dated 6th February 2024 (RN:23/07813/COFUL) for: 'Variation of condition 1 of planning permission dated 17 July 2023 (RN:23/02017/COFUL) for the Refurbishment and upgrade of the Seymour Centre to provide leisure, swimming pool, library, flexible community/office space, health and fitness studios, beauty treatment rooms and a cafe. Flexible use for leisure, community and events spaces (Sui Generis)'. Namely, to allow enlargement sprinkler tank, relocation of services, refurbishments and associated works at lower ground, ground, first and second floors. (Linked with 26/03371/COLBC)

As published by the council, reference 26/03372/NMA

Application record

Reference
26/03372/NMA
Type
Non-material amendments
Status
Pending
Received
21 May 2026
Validated
21 May 2026
Ward
Marylebone
Postcode
W1H 5TJ

Site history

Applications at this address on the Westminster register

This site has had 4 applications since 2025: 2 approved, 0 refused.

  • 26/00337/COLBC Awaiting decision

    Ground Floor Seymour Leisure Centre Seymour Place London W1H 5TJ

    Refurbishment works to include: removal of the redundant swimming pool tank to facilitate the fitness suite at lower ground floor, relining the existing pool tank, installation of photovoltaics on the inner roof slope, removal of the existing roof lanterns and wind catchers in the sports hall to be replaced with new double glazed roof lanterns and wind catchers and installation of secondary glazing to all the windows in the sports hall, removal of roof lantern above swimming pool to be replaced with a new double glazed roof lantern, retention of the existing courtyard and internalisation of the lower ground level with a flat roof covering, removal of roof lanterns above the martial arts studio to be replaced with double glazed roof lanterns, removal and replacement of existing plant including new ductwork and flue, installation of roof plant enclosures, provision of external private roof terrace (restricted access), removal of existing roof lanterns to northwest and northeast of roof to be replaced with flat roof covering, removal and replacement of existing flat roof coverings, installation of access and maintenance gantries, ladders and stairs on roof, removal of windows to community studio and infill, minor internal alterations to walls and partitions to facilitate the reconfiguration of uses, installation of new handrail balustrades on 4 corner stairs of sports hall, improve accessibility with one lift in each core (4 lifts in total plus three platform lifts at first floor) and two new internal upper staircases on the eastern elevation plus two new internal staircases on the south-west of the first floor, external alterations to some windows, doors and fenestrations replacement of asphalt covering to perimeter lightwell with new covering, removal of some mosaic tiles to create level access to the sports hall flooring, removal and replacement of some ceiling, provision of new chemical delivery hoist from street level to lower ground floor at Bryanston Place.

    Submitted 21 May 2026 Heritage and listed buildings
  • 25/05358/COGADF Granted

    Ground Floor Seymour Leisure Centre Seymour Place London W1H 5TJ

    Details of construction drawings at 1:10 of rooflights to the swimming pool and martial arts studio pursuant to condition 3 (part) of planning permission dated 6th February 2024 (RN:23/07813/COFUL)

    Decided 18 Aug 2025 Full applications
  • 25/05266/COMADL Granted

    Ground Floor Seymour Leisure Centre Seymour Place London W1H 5TJ

    Detailed construction drawings at 1:10 with full size details of the all new secondary glazing pursuant to condition 3 of listed building dated 17th July 2025 (RN:25/02196/COLBC)

    Decided 19 Aug 2025 Heritage and listed buildings

Timeline

Dates from the published record

  1. 21 May 2026

    Received by Westminster

  2. 21 Jul 2026

    Added to PlanIndex

  3. Decision

    Awaiting decision

    Decision expected by 16 July 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

Collective Planning Limited Agent, a planning consultancy registered in London

Active · incorporated 2016 · London

15 applications on PlanIndex · across 5 councils

Trade members see everything this firm has filed, how it was decided, and get an email the day it files again.

See their track record

Documents

Plans, drawings, consultee responses and the officer's report

1 document 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

  • Ground Floor Seymour Leisure Centre Seymour Place London W1H 5TJ

    26/00337/COLBC Submitted 21 May 2026 50 yards away

    90% historically approved · decision due ~16 Jul

    Refurbishment works to include: removal of the redundant swimming pool tank to facilitate the fitness suite at lower ground floor, relining the existing pool tank, installation of photovoltaics on the inner roof slope, removal of the existing roof lanterns and wind catchers in the sports hall to be replaced with new double glazed roof lanterns and wind catchers and installation of secondary glazing to all the windows in the sports hall, removal of roof lantern above swimming pool to be replaced with a new double glazed roof lantern, retention of the existing courtyard and internalisation of the lower ground level with a flat roof covering, removal of roof lanterns above the martial arts studio to be replaced with double glazed roof lanterns, removal and replacement of existing plant including new ductwork and flue, installation of roof plant enclosures, provision of external private roof terrace (restricted access), removal of existing roof lanterns to northwest and northeast of roof to be replaced with flat roof covering, removal and replacement of existing flat roof coverings, installation of access and maintenance gantries, ladders and stairs on roof, removal of windows to community studio and infill, minor internal alterations to walls and partitions to facilitate the reconfiguration of uses, installation of new handrail balustrades on 4 corner stairs of sports hall, improve accessibility with one lift in each core (4 lifts in total plus three platform lifts at first floor) and two new internal upper staircases on the eastern elevation plus two new internal staircases on the south-west of the first floor, external alterations to some windows, doors and fenestrations replacement of asphalt covering to perimeter lightwell with new covering, removal of some mosaic tiles to create level access to the sports hall flooring, removal and replacement of some ceiling, provision of new chemical delivery hoist from street level to lower ground floor at Bryanston Place.

    Awaiting decision Heritage and listed buildings Extension Roofing +1
  • Seymour Hall Swimming Baths Seymour Place London W1H 5TJ

    22/03922/COLBC Submitted 16 Jun 2022 50 yards away

    Installation of a pool cover to swimming pool.

    Granted Heritage and listed buildings 15 docs
  • Ground Floor Seymour Leisure Centre Seymour Place London W1H 5TJ

    25/05358/COGADF Submitted 31 Jul 2025 50 yards away

    Details of construction drawings at 1:10 of rooflights to the swimming pool and martial arts studio pursuant to condition 3 (part) of planning permission dated 6th February 2024 (RN:23/07813/COFUL)

    Granted Full applications Loft or dormer 16 docs
  • Ground Floor Seymour Leisure Centre Seymour Place London W1H 5TJ

    25/05266/COMADL Submitted 28 Jul 2025 50 yards away

    Detailed construction drawings at 1:10 with full size details of the all new secondary glazing pursuant to condition 3 of listed building dated 17th July 2025 (RN:25/02196/COLBC)

    Granted Heritage and listed buildings Windows or glazing 23 docs
  • Seymour Hall Swimming Baths Seymour Place London W1H 5TJ

    26/03293/COFUL Submitted 19 May 2026 50 yards away

    87% historically approved · decision due ~14 Jul

    Erection of flue on roof

    Awaiting decision Full applications 16 docs
  • 14 Shouldham Street London W1H 5FJ

    08/03356/LBC Submitted 14 Apr 2008 50 yards away

    Internal alterations, extensions at lower ground, ground, first and roof level, demolition of existing basement and ground floor extensions.

    Withdrawn Heritage and listed buildings Extension Demolition 2 docs

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