36 Mimram Road Welwyn AL6 9HA

1. 8 Nov 2019

   Received by Welwyn Hatfield

2. 30 Dec 2019

   Decision issued: Granted

3. 22 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

• 23-25 Mill Lane Welwyn AL6 9EU

  6/2026/0263/COND Submitted 16 Feb 2026 25m away

  Submission of details pursuant to condition number 2 (Material details) on planning permission 6/2025/1211/LB

  Granted Conditions 1 doc

• 23-25 Mill Lane Welwyn AL6 9EU

  6/2026/0262/COND Submitted 16 Feb 2026 25m away

  Submission of details pursuant to condition number 5 (Material details) and 6 (Hard and soft landscaping) on planning permission 6/2025/1212/HOUSE

  Granted Conditions
  Major scheme

• 1 Mimram Walk Welwyn AL6 9EZ

  6/2022/2721/TC Submitted 1 Dec 2022 41m away

  Weeping Beech in rear garden to south of property. 30% Crown reduction to balance

  Granted Trees

• 56 Mimram Road Welwyn AL6 9HA

  6/2022/2738/HOUSE Submitted 2 Dec 2022 46m away

  Erection of a part single, part two storey side extension, dormer window to the rear of the property, rooflights and side gable window following the demolition of the existing conservatory

  Refused Householder Extension Loft or dormer +2
  Small domestic

• 26 High Street Welwyn AL6 9EQ

  6/2023/0068/COND Submitted 11 Jan 2023 49m away

  Submission of details pursuant to condition number 1 (roofing materials), on Listed Building Consent 6/2022/1668/LB

  Granted Conditions

• 26 High Street Welwyn Hertfordshire AL6 9EQ

  6/2023/0073/COND Submitted 11 Jan 2023 49m away

  Submission of details pursuant to condition 2 (Roof tiles, retiling methodology and repair) on Listed Building consent application 6/2022/1668/LB.

  Granted Conditions Roofing

• 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