308 Cowley Mansions Mortlake High Street Mortlake London SW14 8SL

1. 20 Jan 2023

   Received by Richmond upon Thames

2. 24 Jan 2023

   Validated

   Checked as complete and ready for consideration.

3. 28 Feb 2023

   Decision issued: Granted Permission

4. 12 Sep 2026

   Added to PlanIndex

Richmond upon Thames granted permission on 28 February 2023, 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.

A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.

• 320 Cowley Mansions Mortlake High Street Mortlake Richmond Upon Thames SW14 8SL

  05/T0399/TCA Submitted 24 Jun 2005 29m away

  T1 - Gum - Reduce by 30% and reshape where necessary. T2 - Yew (Taxus baccata) - Remove.

  Granted Trees

• 123, Limes House, Mortlake High Street, London, SW14 8SN

  PA26/0434 Submitted 9 Feb 2026 38m away

  94% historically approved · decision due ~6 Apr

  Details pursuant to condition U60417 (Land Contamination) of planning reference 12/0973/FUL

  Awaiting decision Conditions 3 docs

• 3, Second Avenue, London, SW14 8QF

  PA26/2579 Submitted 24 Jul 2026 44m away

  85% historically approved · decision due ~18 Sep

  Side infill and rear extension at ground floor level, demolition of defective boundary wall at rear and replacement with fence, addition of bike store at the front of the property, railings installed on front boundary wall.

  Awaiting decision Householder Extension Demolition 26 docs
  Small domestic

• The Old Power Station 121 Mortlake High Street Mortlake Richmond Upon Thames SW14 8SN

  05/T0020/TCA Submitted 5 Dec 2004 49m away

  T1 - Horse Chestnut (Aesculus hippocastanum) - Reduce 50% of the weight of 2 heavy limbs over the road and footpath. Thin by 20-25% and balance remainder. T2 - Acer spp. - Remove limbs in contact with perimiter fence. Reduce remainder by 15-20% T3 - Acer spp. - Remove limbs in contact with perimiter fence. Reduce remainder by 15-20% T4 - Group of self sown Ash (Fraxinus excelsior) - Redue back from path. T5 - Group of Ash and Sycamore Trees - Fell.

  Granted Trees
  Small domestic

• 123 Mortlake High Street Mortlake Richmond Upon Thames SW14 8SN

  06/0486/CAC Submitted 13 Feb 2006 50m away

  Erection of roof extension ar 3rd floor level including new dormer windows to road elevation and terrace to rear elevation

  Granted Heritage and listed buildings Extension Loft or dormer +1

• 123 Mortlake High Street Mortlake Richmond Upon Thames SW14 8SN

  06/0485/FUL Submitted 13 Feb 2006 50m away

  Erection of roof extension ar 3rd floor level including new dormer windows to road elevation and terrace to rear elevation

  Refused Full applications Extension Loft or dormer +1 25 docs

• PA26/3182 Awaiting decision

  37 Sheen Road, Richmond TW9 1AJ

  Removal of car parking and re-landscaping of the external courtyard, including provision of soft flooring, cycle storage, an acoustic canopy and screen, attenuation tanks and fire doors to facilitate its use as ancillary amenity space to the Use Class E premises, and associated alterations.

  14 Sep 2026 Full applications
• PA26/2596 Refused

  95, Sheen Road, Richmond, TW9 1YJ

  Construction of a first-floor rear extension over part of the existing single-storey rear extension, together with associated external alterations at the rear of the building, including remodelling of roof lights, a new concealed air-conditioning condenser unit and introduction of a semi-intensive green roof on the existing ground floor extension.

  24 Jul 2026 Full applications
• PA26/1097 Granted

  Teddington School Broom Road Teddington TW11 9PJ

  Construction of a two-storey extension to the existing Sixth Form building to provide additional teaching, independent study, and student support spaces. Associated works include alterations to hard and soft landscaping, replacement of existing surfacing with permeable paving, and minor boundary treatments to define the Sixth Form area; enlargement of the existing soakaway to accommodate additional surface water runoff. The development does not result in an increase in student capacity.

  27 Mar 2026 Full applications
• PA26/2124 Granted

  LONDON BUS SALES DEPOT, Stanley Road, Twickenham, TW2 5NP

  Electrical infrastructure required for charging of electric buses, including new transformer housing and LV panel housing.

  16 Jun 2026 Full applications
• PA26/0779 Refused

  Outside Travelodge Regal House 70 London Road Twickenham

  The installation of a multifunctional communication Hub including defibrillator, air quality monitoring station and advertisement display outside 70 London Road and removal of existing kiosk outside 29-31 King Street

  6 Mar 2026 Full applications