42 Cawthorne Avenue, Grappenhall And Thelwall, Warrington, WA4 2LP

1. 3 Nov 2025

   Received by Warrington

2. 27 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

• 1 Shirley Drive, Grappenhall And Thelwall, Warrington, WA4 2PA

  2026/00362/FULH Submitted 18 Mar 2026 207m away

  Double storey bedroom extension to side elevation plus single storey kitchen rear extension

  Granted Householder Extension
  Small domestic

• 12 Shirley Drive, Grappenhall And Thelwall, Warrington, WA4 2PA

  2026/00743/FULH Submitted 8 Jun 2026 207m away

  Decision due ~3 Aug

  Single storey rear extension

  Status unknown Householder Extension
  Small domestic

• 1, The Locks Thelwall New Road, Warrington, WA4 2GS

  2021/40547 Submitted 22 Nov 2021 217m away

  Replacement of the existing metal juliet balcony with a new larger cantilevered metal framed glazed balcony.

  Granted Full applications Windows or glazing 10 docs

• 3 Brookfield Park, Grappenhall And Thelwall, Warrington, WA4 2LL

  2025/00275/HPA Submitted 26 Feb 2025 237m away

  Proposed single storey rear extension; to extend 5.50m beyond rear wall; maximum height of 3.60m and height to eaves of 2.53m

  Granted Prior approval Extension
  Small domestic

• 295 Thelwall New Road, Warrington, WA4 2NQ

  2024/01573/FULH Submitted 13 Dec 2024 296m away

  Loft conversion with hip to gable extension and rear dormer

  Refused Householder Extension Loft or dormer
  Domestic

• Land To The Rear Of, 340 Thelwall Lane, Warrington, WA4 1NJ

  2026/00633/CLDE Submitted 14 May 2026 320m away

  Decision due ~9 Jul

  Detached dwellinghouse

  Status unknown Lawful development
  Domestic

• 2026/00837/FULH Status unknown

  30 Rectory Lane, Lymm, Warrington, Lymm, WA13 0AL

  EXTENSION TO EXISTING REAR SINGLE STOREY GARDEN ROOM

  30 Jun 2026 Householder
• 2026/00821/FULH Status unknown

  133 Higher Lane, Lymm, Warrington, Lymm, WA13 0BU

  Demolition of existing side/rear annex -Proposed single storey rear side extension / proposed second floor loft conversion with the provision of extending existing roof at second floor level over existing flat roof area. Proposed new canopy porch to front elevation and new porch to side elevation

  26 Jun 2026 Householder
• 2026/00808/FULH Status unknown

  2 Cedar Grove, Latchford, Warrington, WA4 1EJ

  Single storey side extension

  24 Jun 2026 Householder
• 2026/00804/FULH Status unknown

  24 Brian Avenue, Stockton Heath, Warrington, WA4 2BG

  single storey rear extension replacing existing garden room.

  23 Jun 2026 Householder
• 2026/00802/FULH Status unknown

  23 Sandy Lane, Lymm, Warrington, Lymm, WA13 9HJ

  Construction of a single-storey rear extension connecting to the existing garage (including new pitched roof) and extension of the garage to the front.

  23 Jun 2026 Householder