40 Ancaster Crescent New Malden KT3 6BE

1. 15 Jan 2026

   Received by Kingston upon Thames

2. 16 Jan 2026

   Validated

   Checked as complete and ready for consideration.

3. 26 Feb 2026

   Decision issued: Prior Approval Not Required

4. 12 Aug 2026

   Added to PlanIndex

Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.

Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.

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

• 40 Ancaster Crescent New Malden KT3 6BE

  25/02395/PAEXT Submitted 12 Sep 2025 0m away

  Erection of single storey rear extension (4.03m in depth, maximum height of 3.15m and eaves height of 2.80m)

  Refused Householder Extension 8 docs
  Small domestic

• 38 Ancaster Crescent New Malden KT3 6BE

  21/01566/CPU Submitted 12 May 2021 8m away

  Erection of hip to gable and rear dormer roof extension.

  Granted Lawful development Extension Loft or dormer 13 docs

• 38 Ancaster Crescent New Malden KT3 6BE

  21/01562/HOU Submitted 13 May 2021 8m away

  Erection of single-storey rear extension. Hip to gable and rear dormer roof extension with installation of 2no front rooflights to facilitate loft conversion

  Granted Householder Extension Loft or dormer 16 docs
  Small domestic

• 34 Ancaster Crescent New Malden KT3 6BE

  23/01988/HOU Submitted 21 Jul 2023 24m away

  Erection of single-storey rear extension. Hip to gable and rear dormer roof extension with installation of 2no front rooflights to facilitate loft conversion.

  Granted Householder Extension Loft or dormer 18 docs
  Small domestic

• 40 Ancaster Crescent New Malden KT3 6BE

  26/01606/HOU Submitted 21 Jul 2026 37m away

  83% historically approved · decision due ~24 Sep

  Partial conversion of an existing garage into utility, erection of a single storey rear extension and new entrance doors.

  Awaiting decision Householder Extension
  Small domestic

• 22 Ancaster Crescent New Malden KT3 6BE

  21/02410/HOU Submitted 27 Jul 2021 69m away

  Erection of single-storey rear extension

  Refused Householder Extension 11 docs
  Small domestic

• 26/01915/HH Awaiting decision

  32 High Drive New Malden KT3 3UG

  High Hedge

  2 Sep 2026 Householder
• 26/01849/HOU Awaiting decision

  55 Alric Avenue New Malden KT3 4JL

  Erection of L shaped rear dormer roof extension, installation of 3nos front rooflights.

  25 Aug 2026 Householder
• 26/01839/HOU Awaiting decision

  9 Bodley Road New Malden KT3 5QD

  Demolition of conservatory and single storey rear extension. Erection of single storey rear extension with changes to side fenestration.

  24 Aug 2026 Householder
• 26/00954/HOU Granted

  5 Onslow Road New Malden KT3 4AR

  Demolition of garage and erection of single storey side extension. Roof alterations, installation of pv panels, air source heat pump and insulated render. Replacement of windows and internal alterations

  6 May 2026 Householder
• 26/01777/HOU Awaiting decision

  2 Endsleigh Gardens Surbiton KT6 5JL

  Erection of a single storey side extension, removal of chimney and installation of 1no rear rooflight.

  14 Aug 2026 Householder