20 St Margarets Avenue Ashford TW15 1DR

1. 4 Sep 2025

   Received by Spelthorne

2. 30 Oct 2025

   Decision issued: Application Refused

3. 11 Aug 2026

   Added to PlanIndex

The council refused this application for the reasons set out on the decision notice, which the council portal holds in full. Only the applicant can appeal a refusal; the time limit runs from the decision date and is shorter for householder schemes.

Refusal does not prevent a fresh attempt. Applicants often address the reasons for refusal and resubmit, so a refused scheme is not necessarily the end of proposals for the site.

Householder applications cover work to an existing house and its garden: extensions, loft and garage conversions, porches, outbuildings and similar alterations within the boundary of the home. They cannot be used to create a separate dwelling or change what the building is used for. Councils aim to decide them within eight weeks, and immediate neighbours are usually notified and given a chance to comment.

More on householder applications in our guide

• 20 St Margarets Avenue Ashford TW15 1DR

  21/00983/PDH Submitted 10 Jun 2021 2m away

  Prior Approval Notification for a single storey rear extension measuring 8 metres in depth beyond the rear wall of the original dwelling house measuring a maximum height of 2.7 metres and a height to the eaves of 2.7 metres. (As shown on: Location Plan, TSL/20/YOG/01, TSL/20/YOG/02, TSL/20/YOG/03, received 28.06.2021)

  Granted Prior approval Extension 10 docs
  Small domestic

• 24 St Margarets Avenue Ashford TW15 1DR

  25/01451/HOU Submitted 4 Dec 2025 25m away

  Erection of a single storey side/rear extension. Following removal of existing conservatory. Changes to ground floor fenestration.

  Granted Householder Extension Windows or glazing 6 docs
  Small domestic

• 20 St Margarets Avenue Ashford TW15 1DR

  26/00702/HOU Submitted 6 Jul 2026 26m away

  88% historically approved · decision due ~31 Aug

  Erection of a first floor extension to the existing bungalow with a new roof, a part single storey part two storey rear extension with associated alterations to the materials, roofs, windows and doors (part-retrospective) (To address previously refused application: 25/01089/HOU)

  Awaiting decision Householder Extension Roofing +1 29 docs
  Small domestic

• 35 Oakfield Road Ashford TW15 1DN

  25/01079/FUL Submitted 4 Sep 2025 57m away

  Change of use from a Residential Dwelling (Use Class C3) to a children and young adult's care home (Use Class C2)

  Refused Full applications 16 docs
  Domestic

• 11 St Margarets Avenue Ashford TW15 1DR

  23/00106/HOU Submitted 26 Jan 2023 62m away

  Erection of a single storey side and rear extension (following demolition of existing outbuilding).

  Granted Householder Extension Demolition 12 docs
  Small domestic

• 98 Feltham Road Ashford TW15 1DP

  21/01110/CPD Submitted 7 Jul 2021 86m away

  Certificate of Lawfulness for the proposed development of a rear facing dormer with a juliet balcony and 2 no roof light within the front roof slope.

  Granted Lawful development Loft or dormer 13 docs

• 26/00914/HOU Awaiting decision

  53 Gordon Road Ashford TW15 3ES

  Erection of a single storey side and rear wraparound extension, connecting to existing detached garage. Following removal of existing conservatory. Rear timber brise soleil. Alterations to front driveway.

  31 Aug 2026 Householder
• 26/00125/HOU Granted

  14 The Avenue Sunbury-on-Thames TW16 5ES

  Proposed alteration to western and southern boundary treatments including widening of the front brick entrance, installation of a new cantilevered gate for vehicles and pedestrian gate with intercoms and lights, rebuilding and repairing damaged sections of the front and side boundary treatment. Replacement of the timber fencing boundary treatment fronting Saxonbury Avenue with a new 2m high brick wall with piers and coping stones, infilling of existing gate and installation of new metal gate facing Saxonbury Avenue. Proposed works to existing front driveway and other associated works.

  9 Feb 2026 Householder
• 26/00900/HOU Awaiting decision

  36 Saddlebrook Park Sunbury-on-Thames TW16 7NG

  Erection of a single storey rear extension and new side door

  26 Aug 2026 Householder
• 26/00894/HOU Awaiting decision

  288 Feltham Hill Road Ashford TW15 1LN

  Erection of a two-storey side extension and a part two-storey, part single storey rear extension. Loft conversion with 1 no. rear facing dormer and 4 no. rooflights. Front porch extension and new vehicle crossover with associated driveway alterations.

  25 Aug 2026 Householder
• 26/00893/HOU Awaiting decision

  5 Camilla Close Sunbury-on-Thames TW16 7PZ

  Part retrospective single storey side extension

  25 Aug 2026 Householder