4 Cosdach Avenue Wallington SM6 9RA

1. 14 Jul 2026

   Received by Sutton

2. 17 Aug 2026

   Validated

   Checked as complete and ready for consideration.

3. 18 Aug 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   Decision expected by 12 October 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Sutton took a median of 56 days over the applications it decided in the last year.

This application is with Sutton for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.

The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.

This page mirrors an entry on the statutory planning register that Sutton is required to keep. The published feed for this record does not state which type of application it is, which is common for older entries and for some council systems; the register entry on the council portal will say, alongside the case officer and any consultation dates.

Every planning application follows the same broad path: submission, validation, publicity, then a decision by officers or committee. Our guide to planning application types explains the common types and what each can approve.

• 14 Cosdach Avenue Wallington SM6 9RA

  DM2021/02420 Submitted 6 Dec 2021 15m away

  Erection of a first floor side extension.

  Refused Householder Extension 7 docs
  Domestic

• 14 Cosdach Avenue Wallington SM6 9RA

  DM2021/02254 Submitted 10 Nov 2021 15m away

  Demolition of existing conservatory, erection of a single storey rear extension and alterations to rear elevation.

  Granted Householder Extension Demolition 8 docs
  Small domestic

• 4 Cosdach Avenue Wallington SM6 9RA

  DM2022/00099 Submitted 19 Jan 2022 45m away

  Conversion of garage into habitable room.

  Granted Outline 5 docs

• 47 Milton Road Wallington SM6 9RP

  DM2025/01427 Submitted 18 Nov 2025 87m away

  Conversion of loft space involving alterations to existing roofline, a dormer extension at rear, a window to flank roofslope and rooflights to front roofslope.

  Granted Outline Extension Loft or dormer +1 9 docs

• 47 Milton Road Wallington SM6 9RP

  DM2025/01428 Submitted 18 Nov 2025 88m away

  Erection of a single storey side extension.

  Granted Householder Extension 10 docs
  Small domestic

• 28 Sandy Lane South Wallington SM6 9QZ

  DM2020/00784 Submitted 2 Jun 2020 98m away

  Prior Approval for a single storey rear extension projecting from the rear of the original house by 8m.

  Granted Householder Extension 6 docs
  Small domestic