85 Garden Avenue Hatfield Hertfordshire AL10 8LH

1. 22 Mar 2023

   Received by Welwyn Hatfield

2. 23 Mar 2023

   Validated

   Checked as complete and ready for consideration.

3. 9 May 2023

   Decision issued: Granted

4. 13 Sep 2026

   Added to PlanIndex

Welwyn Hatfield granted permission on 9 May 2023, 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.

• 85 Garden Avenue Hatfield AL10 8LH

  6/2023/0637/PN8 Submitted 22 Mar 2023 0m away

  Prior approval for the erection a single storey rear extension measuring 4 metres in depth, 2.82 metres in height and 2.82 metres to the eaves

  Granted Prior approval Extension
  Small domestic

• 10 Shallcross Crescent Hatfield AL10 9QH

  6/2024/1297/FULL Submitted 9 Jul 2024 99m away

  Retention of change of use from C3 (single family dwelling) to C2 (children and young people’s home)

  Granted Full applications
  Domestic

• 41 Cherry Way Hatfield AL10 8LF

  6/2024/1728/PN8 Submitted 9 Sep 2024 116m away

  Prior approval for the erection of a single storey rear extension measuring 4m deep, 2.8m eaves height, 2.95m max height

  Granted Prior approval Extension
  Small domestic

• 45 Garden Avenue Hatfield AL10 8LL

  6/2026/0848/PN8 Submitted 13 May 2026 120m away

  Prior approval for the erection of a single storey rear extension measuring 5.5m in depth, 3.25m in height and 3m to the eaves following the demolition of existing conservatory

  Granted Prior approval Extension Demolition
  Small domestic

• 72 Cherry Way Hatfield AL10 8LD

  6/2026/0748/LAWP Submitted 28 Apr 2026 137m away

  Certificate of lawfulness for non-material Change of Use from C3 (single-family dwelling) to C2 (residential institution) to establish a children’s home accommodating 1 to 2 service users

  Granted Lawful development
  Domestic

• 29 Garden Avenue Hatfield AL10 8LL

  6/2021/1033/HOUSE Submitted 29 Mar 2021 162m away

  Erection of single and two storey rear extension

  Granted Householder Extension
  Domestic

• 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