Mulliner House Flanders Road Chiswick London W4 1NN

1. 10 Feb 2026

   Received by Old Oak and Park Royal Development Corporation

2. 3 Mar 2026

   Decision issued: Objection

3. 10 Aug 2026

   Added to PlanIndex

Old Oak and Park Royal Development Corporation has decided this application; the outcome above is the register's own wording and the decision notice on the council portal carries the detail. More in our guide to what happens after a planning decision.

An outline application tests the principle of developing a site, holding back details such as appearance and landscaping as reserved matters for later approval. More in our guide to planning application types.

• Mulliner House Flanders Road Chiswick London W4 1NN

  260527CONS Submitted 10 Feb 2026 0m away

  Erection of a single storey side extension and an additional floor at roof level with a roof terrace, relocation of the entrance and alterations to the facade, enclosure of the basement car park to create swimming pools with landscaping and associated works ( out of borough)

  Decided Outline Extension 2 docs
  Small domestic

• MULLINER HOUSE FLANDERS ROAD, CHISWICK, W4 1NN

  P/2021/2577 Submitted 24 Jun 2021 0m away

  T1 Norway Maple. Crown reduce close to previous prune points. Height reduce 2m Spread 1.5m. Prune back off building to create a 2m clearance between tree and building. Lift crowns to 2.5m. T2 Norway Maple. Crown reduce close to previous prune points. Height reduce 2m Spread max 1m. Prune back off building to create a 2m clearance between tree and building. Lift crowns to 2.5m. T3 Norway Maple (red). Crown reduced by 30%. Height reduce 3m Spread 2m. Prune back off building to create a 2m clearance between tree and building. Lift crowns to 2.5m. T4 Norway Maple. Crown reduced by 30%. Height reduce 2m Spread 1.5m. Prune back off building to create a 2m clearance between tree and building. Lift crowns to 2.5m. Reason for works. To maintain the trees at no larger than the present size.

  Granted Trees 6 docs

• Mulliner House,Flanders Road,Chiswick,London,W4 1NN

  P/2025/3229 Submitted 24 Oct 2025 0m away

  Certificate of lawfulness of the proposed use of the site as a family childcare and indoor recreation facility comprising children's activity areas, a creche, soft play area, gym and wellness facilities, workspace and meeting rooms, lounges, and a cafe/restaurant falls within the existing building's lawful use (Use Class E)

  Granted Lawful development 13 docs

• Mulliner House,Flanders Road,Chiswick,W4 1NN

  P/2024/3506 Submitted 21 Oct 2024 0m away

  Works to trees in a Conservation Area - G1- 3 X Maple prune clear of building to allow 1.5 metres clearance and T2-Maple prune clear of street lamp by 1 metre in front garden

  Granted Trees 4 docs

• Mulliner House, Flanders Road, Chiswick, London, W4 1NN

  P/2025/3644 Submitted 8 Dec 2025 0m away

  Erection of a single storey side extension and an additional floor at roof level with a roof terrace, relocation of the entrance and alterations to the façade, enclosure of the basement car park to create swimming pools with landscaping, plants and associated works

  Granted Full applications Extension 105 docs
  Small domestic

• 4 Flanders Road, Chiswick, London, W4 1NG

  P/2026/1924 Submitted 29 Jun 2026 35m away

  76% historically approved · decision due ~24 Aug

  Erection of a side and rear dormer with a front rooflight and a rear solar tube to the house and increase in height of the existing outbuilding and installation of a pergola.

  Awaiting decision Householder Loft or dormer 16 docs
  Small domestic

• 263228OPDCOB Awaiting decision

  Land Between Wagamama CPU 1 And CPU 3 Brunel Road Acton W3 7XR

  Erection of a raised deck and installation of 6no. external cold room condenser plant, and associated works( out of borough)

  24 Aug 2026 Outline
• 263227OPDCOB Awaiting decision

  37 - 39 North Acton Road Park Royal NW10 6PF

  Partial discharge of condition 4 (Noise Testing Results) pursuant to planning permission reference 22/0142/REMOPDC dated 25/01/2023 for 'Reserved Matters Application with full details of access, layout, scale, appearance and landscaping pursuant to outline planning permission reference 20/0122/OUTOPDC dated 27/09/2022 for a data centre (Use Class B8), generator building, plant, sub-station, hard and soft landscaping and associated works (out of borough)

  24 Aug 2026 Outline
• 263009CONS Granted

  Building 1, Chiswick Business Park 566 Chiswick High Road W4 5AN

  Reconfiguration of the existing undercroft area to create end of trip facilities, including the conversion of five existing car parking spaces, associated internal alterations, and the removal of redundant plant rooms (Out of Borough Consultation from L.B Hounslow)

  4 Aug 2026 Outline
• 263226OPDCOB Awaiting decision

  SHELL PARK ROYAL SERVICE STATION, ROYAL LEISURE PARK, KENDAL AVENUE Acton W3 0BX

  Application for Prior Approval under Schedule 2, Part 16, Class Aof the Town and Country Planning (General Permitted Development) (England) Order 2015 (as Amended) for the removalof the existing 17m monopole and 4 no. equipment cabinets, and replacement with a 20m monopole and 3 no. equipment cabinets,the relocation of 1 no. existing equipment cabinet and ancillary development thereto ( out of borough)

  21 Aug 2026 Outline
• 262552PANDF Granted

  Joyner Court 49 Lady Margaret Road Southall UB1 2PL

  Construction of an additional storey to accommodate one self-contained flat along with provision of bicycle storage, bin storage (Prior Approval Application, under Part 20, Class A New Dwellinghouses on detached blocks of flats)

  26 Jun 2026 Outline