6 The Gardens Brookmans Park AL9 7UL

1. 16 Jun 2026

   Received by Welwyn Hatfield

2. 21 Jul 2026

   Decision issued: Granted

3. 24 Jul 2026

   Added to PlanIndex

Welwyn Hatfield granted permission on 21 July 2026, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.

A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.

• 2 The Gardens Brookmans Park Hatfield AL9 7UL

  6/2021/0460/VAR Submitted 12 Feb 2021 19m away

  Variation of condition 1 (obscured glazed and non-opening dormer windows) on planning permission 6/2018/2326/HOUSE

  Refused Amendments Loft or dormer Windows or glazing
  Major scheme

• 14 The Gardens Brookmans Park AL9 7UL

  6/2024/1579/PN8 Submitted 20 Aug 2024 36m away

  Prior approval for single storey rear extension with a pitched to flat roof and a roof light measuring 3.75m in depth, 3.43m in height and 2.43m to the eaves

  Refused Prior approval Extension Loft or dormer
  Small domestic

• 14 The Gardens Brookmans Park AL9 7UL

  6/2024/1918/HOUSE Submitted 8 Oct 2024 36m away

  Erection of a single storey rear extension following the demolition of existing conservatory

  Granted Householder Extension Demolition
  Small domestic

• 93 Bluebridge Road Brookmans Park AL9 7UN

  6/2026/0466/HOUSE Submitted 13 Mar 2026 49m away

  Erection of single storey side extension, front porch with new access steps, changes to fenestration at rear to replace french door and window set with bifold doors

  Granted Householder Extension Windows or glazing
  Small domestic

• 11 The Gardens Brookmans Park AL9 7UL

  6/2021/1531/HOUSE Submitted 13 May 2021 72m away

  Erection of part two storey/part single storey front, side and rear extension.

  Granted Householder Extension 1 doc
  Small domestic

• 11 The Gardens Hatfield AL9 7UL

  6/2021/1530/LAWP Submitted 13 May 2021 72m away

  Certificate of lawfulness for a loft conversion

  Granted Lawful development Loft or dormer

• 6/2026/1370/LAWP Granted

  17-17A Mill Lane Welwyn AL6 9EU

  Certificate of lawfulness for the change of use of offices to 3 x 2 bedroom flats

  Received 3 Aug, published by the council 15 Aug 2026 Lawful development
• 6/2026/1218/LAWP Granted

  43 Great Ley Welwyn Garden City AL7 4TJ

  Certificate of lawfulness for rear dormer roof extension to form a loft conversion

  Received 13 Jul, published by the council 9 Aug 2026 Lawful development
• 6/2026/1250/LAWP Granted

  40 Dellsome Lane Welham Green Hatfield AL9 7ND

  Certificate of lawfulness for Class A - Larger single storey rear extension (previously subject to prior approval application ref: 6/25/1851/PN8), Class B - Roof extension/hip to gable conversion, Class C - Other alterations to roof

  Received 16 Jul, published by the council 9 Aug 2026 Lawful development
• 6/2026/1210/LAWE Refused

  9 Flamingo Close Hatfield AL10 9LU

  Certificate of lawfulness for the existing use of the property as a HMO (Use Class C4) in continuous use for over 10 years

  Received 10 Jul, published by the council 9 Aug 2026 Lawful development
• 6/2026/0735/LAWE Refused

  1 Northaw Place Coopers Lane Northaw Potters Bar EN6 4NQ

  Certificate of lawfulness for the existing use of the land as residential garden land ancillary to the dwellinghouse continuously since 2012

  Received 27 Apr, published by the council 24 Jul 2026 Lawful development