22 Mymms Drive Brookmans Park AL9 7AF

1. 25 Nov 2024

   Received by Welwyn Hatfield

2. 20 Jan 2025

   Decision issued: Granted

3. 1 Oct 2026

   Added to PlanIndex

Welwyn Hatfield granted permission on 20 January 2025, 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.

• 15 Mymms Drive Brookmans Park AL9 7AE

  6/2024/1673/HOUSE Submitted 2 Sep 2024 100 yards away

  Conversion of the garage into a habitable room, erection of part single, part double storey front extension, first floor rear extension. Alterations to the roof including, raising the ridge and formation of crown roof with front and rears dormers and replacement roof tiles and the re-positioning of windows and doors and new render to external walls

  Granted Householder Extension Loft or dormer +2 1 doc
  Domestic

• 9 Mymms Drive Brookmans Park Hertfordshire AL9 7AE

  6/2024/1339/COND Submitted 12 Jul 2024 100 yards away

  Submission of details pursuant of conditions 1 (sustainable design statement), 3 (crown roof detail), 4 (materials), 5 (landscape plan) on planning permission 6/2023/2547/FULL

  Split decision Conditions 9 docs

• 9 Mymms Drive Brookmans Park AL9 7AE

  6/2024/1699/COND Submitted 4 Sep 2024 100 yards away

  Submission of details pursuant to condition number 1 (Sustainable Design Statement) on planning permission 6/2023/2547/FULL

  Granted Conditions 8 docs

• Land To Rear of Mymms Drive Brookmans Park AL9 7AF

  6/2025/1610/FULL Submitted 28 Jul 2025 150 yards away

  Erection of two stables following demolition of existing stables

  Granted Full applications Demolition

• 5 Mymms Drive Brookmans Park AL9 7AE

  6/2023/0570/LAWP Submitted 14 Mar 2023 150 yards away

  Certificate of lawfulness for erection of outbuilding to facilitate pool and gym

  Granted Lawful development

• 5 Mymms Drive Hatfield AL9 7AE

  6/2023/0147/HOUSE Submitted 20 Jan 2023 150 yards away

  Erection of boundary wall and brick piers, including metal railings and gates

  Granted Householder
  Small domestic

• 6/2026/1287/LAWE Refused

  Woodhurst Farm, Stables Cattlegate Road Northaw Potters Bar EN2 8AU

  Certificate of Lawfulness for existing use of a former agricultural building (Barn) as a self- contained single residential dwelling house (Use Class C3) following its conversion and continuous occupation for a period in excess of 10 years prior to the date of this application

  Received 22 Jul, published by the council 9 Aug 2026 Lawful development
• 6/2026/1306/LAWP Granted

  184 Unit 4 St Albans Road West Hatfield AL10 0TF

  Certificate of lawfulness for the change of use of the front office portion of Unit 4 to a daycare/crèche facility, to include an internal mezzanine, within Use Class E.

  Received 27 Jul, published by the council 22 Aug 2026 Lawful development
• 6/2026/1328/LAWP Granted

  41 Great North Road Welwyn Garden City AL8 7TJ

  Certificate of lawfulness for a proposed hip to gable loft conversion with rear facing dormer and single storey side extension, plus insertion of rooflight to front elevation

  Received 29 Jul, published by the council 9 Aug 2026 Lawful development
• 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