5 Broom Hill Welwyn AL6 0SF

1. 28 Jan 2026

   Received by Welwyn Hatfield

2. 3 Jun 2026

   Decision issued: Granted

3. 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

• 2 Broom Hill Welwyn AL6 0SE

  6/2021/1913/HOUSE Submitted 23 Jun 2021 51m away

  Small roof addition, alterations to fenestration and internal layout.

  Granted Householder Windows or glazing
  Domestic

• 69 Robbery Bottom Lane Welwyn AL6 0UL

  6/2026/0943/HOUSE Submitted 29 May 2026 127m away

  Raising the existing roof line incorporating new rooflights, new dormer, external alterations to existing windows and doors and the creation of a new parking space, erection of canopy following demolition of existing porch

  Granted Householder Extension Loft or dormer +2
  Small domestic

• 69 Robbery Bottom Lane Welwyn AL6 0UL

  6/2024/0903/HOUSE Submitted 15 May 2024 127m away

  Construction of pitched roof on existing garage

  Granted Householder 1 doc
  Domestic

• 95 Robbery Bottom Lane Welwyn AL6 0UL

  6/2024/1801/LAWP Submitted 17 Sep 2024 140m away

  Certificate of lawfulness for the erection of brick boundary wall to replace existing fencing

  Withdrawn Lawful development 1 doc
  Small domestic

• 95 Robbery Bottom Lane Welwyn AL6 0UL

  6/2023/0269/HOUSE Submitted 3 Feb 2023 140m away

  Retention and remodelation of the as-built single storey side extension, alterations to main dwelling with an attached front garage and link extension. Erection of outbuilding (Part retrospective)

  Withdrawn Householder Extension
  Small domestic

• 95 Robbery Bottom Lane Welwyn AL6 0UL

  6/2021/1709/HOUSE Submitted 28 May 2021 140m away

  Demolition of 2 existing out-buildings in forecourt and addition of a new double garage in the forecourt.

  Granted Householder Demolition
  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