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 50 yards 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 50 yards away

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

  Granted Conditions 4 docs

• 3, Second Avenue, London, SW14 8QF

  PA26/2579 Submitted 24 Jul 2026 50 yards away

  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.

  Granted Householder Extension Demolition 31 docs
  Small domestic

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

  05/T0020/TCA Submitted 5 Dec 2004 50 yards 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 50 yards 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 50 yards 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

• PA26/2446 Granted

  59A KEW ROAD RICHMOND TW9 2NQ

  Retrospective change of use of the ground-floor commercial unit from Sui Generis hot food takeaway use to Class E hairdressing/salon use, with no external alterations proposed.

  Received 13 Jul, published by the council 3 Aug 2026 Full applications
• PA26/2109 Granted

  Superstore (former Homebase Store), Twickenham Road, Hanworth

  Application for alterations to parking layout, installation of electric vehicle charging points, erection of new fences, minor alterations to the servicing area, landscaping, lighting, reverse vending machine and associated works

  Received 15 Jun, published by the council 13 Aug 2026 Full applications
• PA26/0428 Granted

  41 Castelnau Barnes London SW13 9RS

  Replacement of conservatory to create an extension at ground level and basement extension.

  Received 9 Feb, published by the council 13 Aug 2026 Full applications
• PA26/3395 Awaiting decision

  289, 2, Kings Ride House, Sheen Road, Richmond, TW10 5AW

  Erection of a single-storey ground-floor extension with corner glazing and rooflight, together with internal remodelling.

  Received 5 Oct, published by the council 12 Oct 2026 Full applications
• PA26/2520 Granted

  Boatrace Court 69 Mortlake High Street Mortlake London SW14 8HL

  Replace 32 roof windows in flats 8-11 at Boatrace Court.

  Received 20 Jul, published by the council 26 Jul 2026 Full applications