107 Birchwood Avenue Hatfield AL10 0PT

1. 27 May 2021

   Received by Welwyn Hatfield

2. 21 Jul 2021

   Decision issued: Granted

3. 24 Jul 2026

   Added to PlanIndex

Welwyn Hatfield granted permission on 21 July 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.

• 65 Heathcote Avenue Hatfield AL10 0RQ

  6/2023/0410/HOUSE Submitted 22 Feb 2023 150 yards 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

• 32 Chelwood Avenue Hatfield AL10 0RE

  6/2023/0307/LAWP Submitted 8 Feb 2023 150 yards away

  Certificate of lawfulness for alterations to fenestration

  Granted Lawful development Windows or glazing

• 96 Birchwood Avenue Hatfield AL10 0PS

  6/2026/0558/HOUSE Submitted 26 Mar 2026 200 yards 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

• 79 Homestead Road Hatfield AL10 0QP

  6/2026/0235/HOUSE Submitted 10 Feb 2026 200 yards away

  Erection of single storey side extension, hardstanding and vehicle crossover

  Withdrawn Householder Extension
  Small domestic

• 33 Birchwood Avenue Hatfield AL10 0PR

  6/2021/1839/LAWP Submitted 15 Jun 2021 200 yards away

  Certificate of lawfulness for a loft conversion with rear dormer

  Granted Lawful development Loft or dormer

• 92 Chelwood Avenue Hatfield AL10 0RE

  6/2021/1642/COND Submitted 23 May 2021 200 yards away

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

  Granted Conditions
  Major scheme

• 6/2026/1288/LAWE Granted

  1 The Limberlost Welwyn AL6 9TS

  Certificate of existing lawfulness for a single storey extension

  Received 22 Jul, published by the council 22 Aug 2026 Lawful development
• 6/2026/1297/LAWE Granted

  White Lodge Farm The Bellbrook Bulls Lane Hatfield AL9 7AZ

  Certificate of lawfulness in relation to existing gate and fencing

  Received 23 Jul, published by the council 9 Aug 2026 Lawful development
• 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
• 6/2026/1559/LAWP Awaiting decision

  28 Pleasant Rise Hatfield AL9 5DU

  Certificate of lawfulness for construction of a new detached, single-storey garden room/summerhouse within an existing rear garden

  Received 8 Sep, published by the council 22 Sep 2026 Lawful development