55 Mymms Drive Brookmans Park AL9 7AE

1. 14 Dec 2022

   Received by Welwyn Hatfield

2. 16 Dec 2022

   Validated

   Checked as complete and ready for consideration.

3. 10 Feb 2023

   Decision issued: Granted

4. 9 Aug 2026

   Added to PlanIndex

Welwyn Hatfield granted permission on 10 February 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.

Householder applications cover work to an existing house and its garden, such as extensions, lofts and outbuildings, and cannot create a separate dwelling or change what the building is used for. More in our guide to planning application types.

• 6 Calder Avenue Brookmans Park Hertfordshire AL9 7AQ

  6/2023/0273/HOUSE Submitted 3 Feb 2023 50 yards away

  Erection of a first floor rear extension, single storey side and rear extension, front canopy, alteration to fenestration, conversion of garage to habitable space and erection of a detached garage

  Granted Householder Extension Windows or glazing
  Small domestic

• 6 Calder Avenue Brookmans Park AL9 7AQ

  6/2021/1496/HOUSE Submitted 11 May 2021 50 yards away

  Erection of single storey side extension, garage, front canopy and first floor rear extension.

  Granted Householder Extension
  Small domestic

• 72 Mymms Drive Brookmans Park Hatfield AL9 7AD

  6/2021/2431/HOUSE Submitted 18 Aug 2021 100 yards away

  Erection of a two storey rear and single storey side extension with crown roof and rendering of the exterior

  Granted Householder Extension
  Small domestic

• 9 Calder Avenue Brookmans Park Hatfield AL9 7AH

  6/2021/1064/HOUSE Submitted 31 Mar 2021 100 yards away

  Erection of part single, part two storey front extension; two storey side extension; part single, part two storey rear extension; garage conversion; enlargement of roof; insertion of side and rear rooflights; and front facade alterations.

  Granted Householder Extension Loft or dormer
  Small domestic

• 54 Mymms Drive Brookmans Park AL9 7AF

  6/2021/1145/COND Submitted 8 Apr 2021 150 yards away

  Submission of details pursuant to condition numbers 3 (sample materials) and 5 (details of external rear balcony screening) on planning permission S6/2015/0228/FP

  Granted Conditions

• 73 Mymms Drive Brookmans Park AL9 7AA

  6/2026/1550/FULL Submitted 7 Sep 2026 150 yards away

  80% historically approved · decision due ~9 Nov

  Erection of dwelling following demolition of existing dwelling

  Awaiting decision Full applications New dwelling Demolition
  Domestic

• 6/2026/1408/HOUSE Granted

  Wytmead Essendon Hill Essendon Hatfield AL9 6AW

  Reinstatement of the previously truncated chimney

  Received 10 Aug, published by the council 31 Aug 2026 Householder
• 6/2026/1170/HOUSE Granted

  6 Highfields Cuffley Potters Bar EN6 4EL

  Conversion of garage into study room with alterations to the front elevation, repositioning of lower ground floor entrance hall, erection of two storey infill side extension with internal alterations, replacement of existing front and side building brickwork with K-Render finish, removal of chimney and installation of 2 rooflights

  Received 6 Jul, published by the council 30 Jul 2026 Householder
• 6/2026/1177/HOUSE Granted

  Red Lodge High Road Essendon Hatfield AL9 6HU

  Erection of two single-storey side extensions, detached garage with barn-hipped roof and photovoltaic panels, relocated garden room and associated works to hardstanding and site layout.

  Received 7 Jul, published by the council 9 Aug 2026 Householder
• 6/2026/1376/HOUSE Granted

  18 Briary Wood Lane Welwyn AL6 0TF

  Erection of a single storey ground floor extension & part two storey rear, raising the roof and alterations to facilitate loft conversion to include new crown roof with front & rear dormers

  Received 4 Aug, published by the council 22 Aug 2026 Householder
• 6/2026/1392/HOUSE Granted

  1 Little Wade Welwyn Garden City AL7 4LE

  Erection of a single storey rear extension

  Received 6 Aug, published by the council 15 Aug 2026 Householder