Mulliner House,Flanders Road,Chiswick,W4 1NN

This site has had 3 applications since 2021: 2 approved, 1 refused.

• PAC/2021/3121 Refused

  MULLINER HOUSE FLANDERS ROAD, CHISWICK, W4 1NN

  Prior approval notification for change of use from office (Use Class E(g)(i)) (previously Use Class B1(a)) to form 50 residential flats comprising 37 studios, 11 one bedroom flats and two. 2 bedroom flats (Use Class C3).

  Decided 16 Sep 2021 Prior approval
• P/2021/2577 Granted

  MULLINER HOUSE FLANDERS ROAD, CHISWICK, W4 1NN

  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.

  Decided 3 Aug 2021 Trees

1. 21 Oct 2024

   Received by Hounslow

2. 2 Dec 2024

   Decision issued: NO OBJECTION

3. 16 Aug 2026

   Added to PlanIndex

Hounslow granted permission on 2 December 2024, 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.

Applications for works to trees cover protected trees: consent under a tree preservation order, or six weeks notice for trees in a conservation area. More in our guide to planning application types.

• MULLINER HOUSE FLANDERS ROAD, CHISWICK, W4 1NN

  P/2021/2577 Submitted 24 Jun 2021 50 yards 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 50 yards 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

  PAC/2021/3121 Submitted 30 Jul 2021 50 yards away

  Prior approval notification for change of use from office (Use Class E(g)(i)) (previously Use Class B1(a)) to form 50 residential flats comprising 37 studios, 11 one bedroom flats and two. 2 bedroom flats (Use Class C3).

  Refused Prior approval New dwelling 21 docs

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

  P/2025/3644 Submitted 8 Dec 2025 50 yards 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

• Mulliner House Flanders Road Chiswick London W4 1NN

  260527CONS Submitted 10 Feb 2026 50 yards 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)

  Refused Outline Extension 2 docs
  Small domestic

• Mulliner House Flanders Road Chiswick London W4 1NN

  260527CONS Submitted 10 Feb 2026 50 yards 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)

  Refused Outline Extension 2 docs
  Small domestic

• P/2026/2833 Awaiting decision

  271 Jersey Road, Isleworth, TW7 4RF

  Works to tree within a conservation area. Pine (T1) - Fell to ground level.

  Received 6 Oct, published by the council 9 Oct 2026 Trees
• P/2026/2829 Awaiting decision

  141 Park Road, Chiswick, London, W4 3EX

  Works to four trees within a conservation area. Yew (T1) - Crown reduction by up to 1.5 meters to shape and contain Final height 6 meters and final spread 6 meters Bay (T2) - Crown reduction by up to 4 meters to shape and contain. Final height 5 meters and final spread 4 meters. Purple Leaf Plum (T3) - Crown reduction by up to 4 meters to shape and contain. Final height 5 meters and final spread 4 meters. Magnolia (T4) - Crown reduction by up to 1 meter to shape and contain. Final height 3.5 meters and final spread 3 meters.

  Received 6 Oct, published by the council 9 Oct 2026 Trees
• P/2026/2830 Awaiting decision

  52 Percy Road, Isleworth, TW7 7HB

  Works to trees within a conservation area. REAR GARDEN G1 Sycamore (Acer pseudoplatanus). Reduce height and spread of all trees in the group by approximately 4-5m, to contain and shape. Final height 5-6m and final spread 7-8m.

  Received 6 Oct, published by the council 9 Oct 2026 Trees
• P/2026/2814 Awaiting decision

  13 Eastbourne Road, Chiswick, London, W4 3EB

  Works to a row of Conifer Leylandii in rear garden within a conservation area. Reduce by approximately 2.5 metres.

  Received 5 Oct, published by the council 9 Oct 2026 Trees
• P/2026/2816 Awaiting decision

  16 Wilmington Avenue, Chiswick, London, W4 3HA

  Works to tree within a conservation area. Pear (T1) - Fell tree to ground level and replace with one or more new trees of appropriate species.

  Received 5 Oct, published by the council 9 Oct 2026 Trees