33 Birchwood Avenue Hatfield AL10 0PR

1. 15 Jun 2021

   Received by Welwyn Hatfield

2. 16 Jun 2021

   Validated

   Checked as complete and ready for consideration.

3. 9 Aug 2021

   Decision issued: Granted

4. 9 Aug 2026

   Added to PlanIndex

Welwyn Hatfield granted permission on 9 August 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.

• 82 Birchwood Avenue Hatfield AL10 0PS

  6/2026/0710/HOUSE Submitted 21 Apr 2026 55m away

  Erection of single storey rear extension

  Granted Householder Extension
  Small domestic

• 96 Birchwood Avenue Hatfield AL10 0PS

  6/2026/0558/HOUSE Submitted 26 Mar 2026 71m away

  Erection of a part single-storey, part two storey side extension and a single storey rear extension, including associated internal reconfiguration, removal of chimney, and alterations to fenestration following demolition of outbuilding

  Granted Householder Extension Demolition +1
  Small domestic

• 29 Heathcote Avenue Hatfield AL10 0RQ

  6/2026/0632/PN8 Submitted 9 Apr 2026 91m away

  Prior approval for a single storey rear extension which will measure 4m in depth, 3m to the eaves and the maximum height of 2.69m

  Granted Prior approval Extension
  Small domestic

• 65 Heathcote Avenue Hatfield AL10 0RQ

  6/2023/0410/HOUSE Submitted 22 Feb 2023 127m away

  Erection of single storey rear extension, front porch extension, installation of one front rooflight and a rear dormer to facilitate the conversion of loft to habitable space

  Refused Householder Extension Loft or dormer
  Small domestic

• 92 Chelwood Avenue Hatfield AL10 0RE

  6/2021/1642/COND Submitted 23 May 2021 146m away

  Submission of details pursuant to condition 1 (materials) on planning permission 6/2021/0742/HOUSE

  Granted Conditions
  Major scheme

• 18 Birchwood Close Hatfield AL10 0PP

  6/2026/1424/VAR Submitted 12 Aug 2026 165m away

  90% historically approved · decision due ~23 Oct

  Variation of Condition 1 (Arboricultural Method Statement and Tree Protection Plan) and Condition 2 (External Materials) on planning permission 6/2025/0927/HOUSE

  Awaiting decision Amendments Trees
  Major scheme

• 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