MOGDEN SEWAGE TREATMENT WORKS MOGDEN LANE, ISLEWORTH, TW7 7LR

This site has had 2 applications since 2021.

• SRN/2021/3865 Decided

  MOGDEN SEWAGE TREATMENT WORKS MOGDEN LANE, ISLEWORTH, TW7 7LR

  Screening opinion for proposed biomethane plant consisting of a biogas upgrade unit, a gas entry unit, a remotely operated valve kiosk, a storage unit, a welfare facility, a ground flare waste gas burner, a gas main connection into local gas grid and all associated electrical, mechanical and control installation works.

  Decided 8 Oct 2021 Outline

1. 12 Jan 2021

   Received by Hounslow

2. 29 Jan 2021

   Decision issued: DOES NOT REQUIRE AN ENVIRONMENTAL IMPACT ASSESSMENT

3. 10 Sep 2026

   Added to PlanIndex

Hounslow 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.

• THAMES WATER PLC MOGDEN LANE, ISLEWORTH, TW7 7LR

  SRN/2022/1265 Submitted 14 Apr 2022 50 yards away

  Screening application for - Improving the capacity of the preliminary treatment; - Improving the resilience and capacity of the primary and secondary treatment; - Improving the resilience of the sludge and digester streams and preparing them for AMP8 work; and, - Reducing the flaring of biogas and providing additional onsite energy generation.

  Decided Outline 1 doc

• MOGDEN SEWAGE TREATMENT WORKS MOGDEN LANE, ISLEWORTH, TW7 7LR

  SRN/2021/3865 Submitted 24 Sep 2021 50 yards away

  Screening opinion for proposed biomethane plant consisting of a biogas upgrade unit, a gas entry unit, a remotely operated valve kiosk, a storage unit, a welfare facility, a ground flare waste gas burner, a gas main connection into local gas grid and all associated electrical, mechanical and control installation works.

  Decided Outline 4 docs

• MOGDEN LANE SEWAGE WORKS MOGDEN LANE, ISLEWORTH, TW7 7LR

  SRN/2021/0088 Submitted 11 Jan 2021 50 yards away

  Screening application for proposed tank-mounted solar generator on part of the Mogden Sewage Treatment Works (STW) site

  Decided Outline 2 docs

• 65 MOGDEN LANE, ISLEWORTH, TW7 7LH

  P/2021/2479 Submitted 17 Jun 2021 250 yards away

  Formation of vehicle access, hardstanding, crossover and dropped kerb at front of property.

  Refused Householder 5 docs
  Small domestic

• Teddington Direct River Abstraction (Site in Richmond)

  2024/3544 Submitted 15 Oct 2024 300 yards away

  EIA Scoping Consultation and Regulation 11 Notification for a Tertiary Treatment Facility with a peak output of 75Ml/d of recycled water; a recycled water drop shaft and approximately 4.5km pipeline with intermediate shafts located between Mogden Sewage Treatment Works and the River Thames upstream of Teddington Weir terminating in an outfall structure in or adjacent to the River Thames; a river water intake structure sized to abstract a maximum of 75Ml/d, located upstream of the outfall structure,a drop shaft, raw water pipeline and connection shaft to the Thames Lee Tunnel.

  Decided Other 4 docs

• 47 Mogden Lane, Isleworth, TW7 7LH

  P/2026/0237 Submitted 26 Jan 2026 350 yards away

  Certificate of lawfulness for the proposed erection of a rear roof extension with front roof windows to the house and a detached single storey outbuilding to the rear.

  Granted Lawful development Extension Windows or glazing 10 docs
  Small domestic

• SC/2026/2149 Decided

  LAND AT CHISWICK ROUNDABOUT, CHISWICK, W4 5QJ

  Scoping opinion for redevelopment of the site to provide 496 co-living units and 60 C3 affordable units alongside retail offering, play space and a roof level external amenity space, with a maximum height of 24 storeys

  Received 22 Jul, published by the council 26 Jul 2026 Outline
• PAC/2026/2008 Granted

  First Floor, Vine Works, Church Street, Chiswick, London, W4 2PD

  Prior Approval for change of use of the existing building's first floor office (Use Class E) to a self-contained one bedroom, two person flat (Use Class C3).

  Received 3 Jul, published by the council 26 Jul 2026 Outline
• SC/2026/1860 Decided

  Brentford Community Stadium Lionel Road South, Brentford, TW8 0RU

  Scoping opinion for the use of the existing stadium for live music events.

  Received 23 Jun, published by the council 26 Jul 2026 Outline
• PA/2026/1852 Granted

  Dukes Gate, Acton Lane, Chiswick, London, W4 5DX

  Prior approval for the erection of an additional floor extension to provide 10 residential units

  Received 18 Jun, published by the council 26 Jul 2026 Outline
• PAC/2026/1850 Granted

  Dukes Gate, Acton Lane, Chiswick, London, W4 5DX

  Prior approval for the change of use from commercial, business and service (Use Class E) to residential floorspace (C3) creating 29 residential units

  Received 18 Jun, published by the council 26 Jul 2026 Outline