50 Kingston Avenue North Cheam SM3 9UF

1. 26 Aug 2025

   Received by Sutton

2. 13 Aug 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 21 October 2025, 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.

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

• 13 St Margarets Avenue North Cheam SM3 9TU

  DM2025/00638 Submitted 13 May 2025 46m away

  Conversion of detached garage to a habitable room and associated alterations to fenestrations to all elevations of proposed garden office.

  Granted Outline 5 docs

• 70 Kew Crescent North Cheam Sutton Sutton SM3 9RT

  DM2023/00557 Submitted 11 Apr 2023 64m away

  Erection of a single storey side extension.

  Granted Outline Extension 14 docs
  Small domestic

• 43 St Margarets Avenue North Cheam SM3 9TU

  DM2023/01077 Submitted 4 Jul 2023 92m away

  Conversion of loft space involving an increased ridgeline, a dormer extension at rear, rooflight to front roofslope and removal of a chimney stack.

  Granted Householder Extension Loft or dormer 11 docs
  Domestic

• 43 St Margarets Avenue North Cheam SM3 9TU

  DM2023/01076 Submitted 4 Jul 2023 92m away

  Erection of a single storey rear extension with a raised patio to the rear and erection of a front porch extension.

  Granted Householder Extension 11 docs
  Small domestic

• 47 St Margarets Avenue North Cheam SM3 9TU

  DM2025/00610 Submitted 2 May 2025 105m away

  Conversion of loft space involving alterations to existing roofline, a dormer extension at rear, external soil and vent pipe and rooflights to front roofslope.

  Granted Outline Extension Loft or dormer 10 docs

• 2 St Margarets Avenue North Cheam SM3 9TT

  DM2021/02271 Submitted 12 Nov 2021 115m away

  Erection of a single storey rear extension and formation of a front entrance porch.

  Granted Householder Extension 8 docs
  Small domestic

• DM2026/00825 Refused

  4 Oakwood Wallington SM6 0RD

  Prior Approval for a single storey upwards extension projecting from the original house by 2.81m.

  7 Jul 2026 Householder
• DM2026/00600 Granted

  5 Waterer Rise Wallington SM6 9DN

  Erection of front boundary gates with walls, piers and railings.

  14 May 2026 Householder
• DM2026/00544 Granted

  18 Cheviot Close Sutton SM2 5SB

  Erection of a single storey front, side and rear extension.

  29 Apr 2026 Householder
• DM2026/00083 Granted

  53 Oxford Road Carshalton SM5 3QZ

  Erection of a part one, part two storey side and rear extension. Conversion of loft space involving alterations to existing roofline, a dormer extension at rear and rooflights to front roofslope.

  27 Jan 2026 Householder
• DM2026/00644 Granted

  37 Farm Way Worcester Park KT4 8RZ

  Erection of a single storey rear extension and conversion of the garage to a habitable room with associated external works.

  26 May 2026 Householder