66 Peartree Lane Welwyn Garden City AL7 3UH

1. 3 Mar 2026

   Received by Welwyn Hatfield

2. 10 Apr 2026

   Validated

   Checked as complete and ready for consideration.

3. 29 May 2026

   Decision issued: Granted

4. 9 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

• 66 Peartree Lane Welwyn Garden City AL7 3UH

  6/2026/1146/EM Submitted 1 Jul 2026 0m away

  Erection of a two storey side extension and single storey rear extension, three dormer windows to the front and one dormer window to the rear, roof lights and alterations to fenestration

  Granted Extension Loft or dormer +1
  Small domestic

• 68 Peartree Lane Welwyn Garden City AL7 3UH

  6/2021/1395/EM Submitted 30 Apr 2021 14m away

  Erection of first floor rear extension

  Refused Extension

• 68 Peartree Lane Welwyn Garden City AL7 3UH

  6/2021/1391/HOUSE Submitted 30 Apr 2021 14m away

  Erection of first floor rear extension over existing rear extension

  Refused Householder Extension
  Domestic

• YMCA 90 Peartree Lane Welwyn Garden City AL7 3UL

  6/2022/2797/FULL Submitted 9 Dec 2022 84m away

  Erection of electricity substation

  Withdrawn Full applications

• 53 Peartree Lane Welwyn Garden City AL7 3UA

  6/2021/1199/EMT Submitted 13 Apr 2021 88m away

  Removal of sycamore

  Granted Trees

• 51 Peartree Lane Welwyn Garden City AL7 3UA

  6/2021/1249/HOUSE Submitted 19 Apr 2021 94m away

  Erection of a side facing porch, part single storey, part two storey side and rear extension, insertion of 3 x front facing dormer windows and 2 x rear facing dormer windows and alterations to openings.

  Granted Householder Extension Loft or dormer +1
  Small domestic

• 6/2026/1228/HOUSE Granted

  109 Mount Way Welwyn Garden City AL7 4LA

  Erection of single storey front extension

  13 Jul 2026 Householder
• 6/2026/1011/HOUSE Granted

  5 Brookside Crescent Cuffley Potters Bar EN6 4QW

  Erection of rear extension, single storey side extension, new porch, additions/alterations to windows on side elevation and demolition of garage

  9 Jun 2026 Householder
• 6/2026/0703/HOUSE Granted

  57 Great North Road Brookmans Park AL9 6LA

  Erection of part double part single storey rear extension, single storey front porch extension, raising of roof and eaves to accommodate loft conversion, alterations to materials and fenestration, erection of front boundary wall and gates

  20 Apr 2026 Householder
• 6/2026/0534/HOUSE Refused

  16 Chipmunk Chase Hatfield AL10 9GH

  Retention of single storey rear extension and garage conversion to study/office

  24 Mar 2026 Householder
• 6/2026/1175/HOUSE Granted

  5A Honeycroft Welwyn Garden City AL8 6HR

  Erection of a single storey rear extension, alterations to opening on side elevation and garden room with covered area following demolition of conservatory

  7 Jul 2026 Householder