102 Harmer Green Lane Digswell Welwyn AL6 0ES

1. 22 Feb 2021

   Received by Welwyn Hatfield

2. 23 Feb 2021

   Validated

   Checked as complete and ready for consideration.

3. 24 May 2021

   Decision issued: Granted

4. 9 Aug 2026

   Added to PlanIndex

Welwyn Hatfield granted permission on 24 May 2021, 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.

• 98 Harmer Green Lane Digswell Welwyn Hertfordshire AL6 0ES

  6/2023/0121/LAWP Submitted 18 Jan 2023 128m away

  Certificate of lawfulness for erection of single storey rear extension, two single storey side and rear extensions and two 2-storey rear extensions

  Refused Lawful development Extension
  Small domestic

• 98 Harmer Green Lane Digswell Welwyn AL6 0ES

  6/2026/1200/HOUSE Submitted 10 Jul 2026 128m away

  83% historically approved · decision due ~7 Sep

  Formation of front boundary gate with brick piers and erection of rear extension, rear orangery, side porch canopy, replacement front porch, alterations to the fenestration including replacement windows, infilling the garage door, replacement roof tiles, replacement pool in new location, bore hole, Installation of rooflights, swimming pond, formation of glass balustrade at the rear, flint cladding/masonary treatment, garden outbuildings including a workshop, gym, shepherds hut, sauna and greenhouse, ev charger and heat source pump

  Awaiting decision Householder Extension Loft or dormer +2
  Small domestic

• 106 Harmer Green Lane Digswell Welwyn AL6 0ET

  6/2021/1239/LAWP Submitted 16 Apr 2021 151m away

  Certificate of lawfulness for the erection of a side extension, a porch and an outbuilding

  Granted Lawful development Extension
  Small domestic

• 106 Harmer Green Lane Digswell Welwyn AL6 0ET

  6/2021/1227/PN8 Submitted 15 Apr 2021 151m away

  Prior approval for the erection of a single storey rear extension measuring 7.90m. in depth, 3.80m. in heights, 2.40m. to the eaves.

  Granted Prior approval Extension
  Small domestic

• 112 Harmer Green Lane Digswell Welwyn AL6 0ET

  6/2023/0317/HOUSE Submitted 9 Feb 2023 219m away

  Erection of two front dormers, porch, new windows and internal remodelling

  Granted Householder Extension Loft or dormer +1
  Small domestic

• 116 Harmer Green Lane Digswell Welwyn AL6 0ET

  6/2023/0134/LAWP Submitted 18 Jan 2023 244m away

  Certificate of lawfulness for construction of a two storey rear extension

  Refused Lawful development Extension

• 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

  27 Apr 2026 Lawful development
• 6/2026/1132/LAWE Refused

  19 Cunningham Avenue Hatfield AL10 9LR

  Certificate of existing lawfulness of a 5 person HMO since 6 April 2006

  30 Jun 2026 Lawful development
• 6/2026/1506/LAWP Awaiting decision

  Gosmore Brocket Road Welwyn Garden City AL8 7TT

  Erection of single storey side extensions x 2 and two storey rear extension

  27 Aug 2026 Lawful development
• 6/2026/1503/LAWE Awaiting decision

  27 Batterdale Hatfield AL9 5JG

  Certificate of lawfulness for the existing like-for-like replacement of damaged and aged windows on the front and rear elevations

  26 Aug 2026 Lawful development
• 6/2026/1044/LAWP Granted

  5 Peartree Court Welwyn Garden City AL7 3XN

  Certificate of lawfulness for the change of use from C3 (dwellinghouse) to C4 (HMO for up to 6 unrelated residents)

  15 Jun 2026 Lawful development