17 Templedene Avenue Staines-upon-Thames TW18 1LH

1. 7 Nov 2025

   Received by Spelthorne

2. 5 Dec 2025

   Decision issued: Grant Cert Lawful Prop Use/Dev

3. 11 Aug 2026

   Added to PlanIndex

Spelthorne granted permission on 5 December 2025, 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 lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.

• 29 Templedene Avenue Staines-upon-Thames TW18 1LH

  21/01262/HOU Submitted 31 Jul 2021 50 yards away

  Single storey side extension

  Granted Householder Extension 9 docs
  Small domestic

• 29 Templedene Avenue Staines-upon-Thames TW18 1LH

  21/01240/CPD Submitted 29 Jul 2021 50 yards away

  Certificate of Lawfulness for the proposed development of loft alterations to include a hip to gable alteration, a rear facing dormer with Juliet Balcony, 3 no. roof lights within the front roof slope.

  Granted Lawful development Loft or dormer 9 docs

• 6 Templedene Avenue Staines-upon-Thames TW18 1LP

  21/01046/CPD Submitted 25 Jun 2021 50 yards away

  Certificate of Lawfulness for proposed development of a single storey rear extension following the demolition of the existing conservatory.

  Granted Lawful development Extension Demolition 9 docs
  Small domestic

• 3 Beechwood Avenue Staines-upon-Thames TW18 1JH

  25/01462/HOU Submitted 8 Dec 2025 100 yards away

  Garage conversion into habitable room and changes to ground floor rear fenestration.

  Granted Householder Windows or glazing 10 docs
  Small domestic

• 3 Hazel Grove Staines-upon-Thames TW18 1JJ

  21/00965/HOU Submitted 9 Jun 2021 100 yards away

  Erection of a single storey rear extension.

  Granted Householder Extension 4 docs
  Small domestic

• 37 Pavilion Gardens Staines-upon-Thames TW18 1LS

  26/00020/HOU Submitted 8 Jan 2026 100 yards away

  Erection of an outbuilding in rear garden, for use as gym.

  Granted Householder 8 docs
  Small domestic

• 26/00916/CPD Awaiting decision

  9 Alexandra Road Ashford TW15 1TW

  Certificate of Lawfulness for proposed conversion of roof space into habitable room, to include a rear dormer and conversion of roof from hip to gable end and 2 no roof lights on front of roof.

  Received 31 Aug, published by the council 9 Sep 2026 Lawful development
• 26/00452/CLD Granted

  177A Feltham Road Ashford TW15 1BB

  Certificate of Lawfulness for existing use of the ground floor flat as a small HMO (Use Class C4)

  Received 4 May, published by the council 30 Jul 2026 Lawful development
• 26/00200/CLD Granted

  73 Nursery Gardens Staines-upon-Thames TW18 1EL

  Certificate of Lawfulness to establish the lawful use of the property is as a House in Multiple Occupation (Use Class C4) for up to six occupants. As shown on site location plan and block plan no EX-1003 and Pre-Existing Floor Plans (Page 01 of 02) and Existing Floor Plans (Page 02 of 02) received 27.02.2026.

  Received 26 Feb, published by the council 30 Jul 2026 Lawful development
• 26/00383/CPD Refused

  13 Meadow Road Ashford TW15 1PL

  Certificate of lawfulness for proposed change of use from a 6 Person HMO (Class C4) to a 7 Person HMO (Sui-Generis)

  Received 14 Apr, published by the council 30 Jul 2026 Lawful development
• 26/00437/CLD Refused

  4 Sunmead Road Sunbury-on-Thames TW16 6PE

  Certificate of Existing Lawfulness for the conversion of a C3 dwellinghouse to a C4 small 6-person HMO.

  Received 28 Apr, published by the council 30 Jul 2026 Lawful development