73 Mymms Drive Brookmans Park AL9 7AA

1. 23 Mar 2026

   Received by Welwyn Hatfield

2. 13 Apr 2026

   Validated

   Checked as complete and ready for consideration.

3. 24 Jul 2026

   Added to PlanIndex

4. 26 Jul 2026

   Status changed to Under Consultation

   Previously Under Consideration.

5. 9 Aug 2026

   Status changed to Under Consideration

   Previously Under Consultation.

6. 21 Aug 2026

   Decision issued: Refused

Welwyn Hatfield refused this application for the reasons on the decision notice; only the applicant can appeal, and refused schemes often return in revised form. More in our guide to what happens after a planning decision.

A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.

• 9 Calder Avenue Brookmans Park Hatfield AL9 7AH

  6/2021/1064/HOUSE Submitted 31 Mar 2021 0.1 miles 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

• 6 Calder Avenue Brookmans Park AL9 7AQ

  6/2021/1496/HOUSE Submitted 11 May 2021 0.1 miles away

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

  Granted Householder Extension
  Small domestic

• 6 Calder Avenue Brookmans Park Hertfordshire AL9 7AQ

  6/2023/0273/HOUSE Submitted 3 Feb 2023 0.1 miles 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

• Oakview 103 Brookmans Avenue Brookmans Park AL9 7QG

  6/2026/0641/TPO Submitted 10 Apr 2026 0.1 miles away

  T1 – Oak – height 15m – spread 12m – w3w aims.dime.into Requested works: 1m Reduction of entire tree, removing all deadwood. Reasons for works: Tree is in proximity to public footpath, used by local school children. Light and space is also obstructed to front of property TPO 972 (2022) T1

  Granted Trees

• 104 Brookmans Avenue Hatfield AL9 7QQ

  6/2023/0096/FULL Submitted 16 Jan 2023 0.1 miles away

  Erection of a dwelling following demolition of existing dwelling with alterations to boundary treatment including driveway, gate and piers.

  Granted Full applications New dwelling Demolition
  Domestic

• 55 Mymms Drive Brookmans Park AL9 7AE

  6/2022/2827/HOUSE Submitted 14 Dec 2022 0.1 miles away

  Erection of rear conservatory

  Granted Householder Extension
  Small domestic

• 6/2026/1124/FULL Withdrawn

  39 The Ridgeway Northaw EN6 4BD

  Proposed construction of new house and garage following demolition of existing house and garage

  Received 29 Jun, published by the council 24 Jul 2026 Full applications
• 6/2026/0929/FULL Granted

  Old Owen's Sports Ground Coopers Lane Potters Bar EN6 4NF

  Installation of 1 no. single padel court

  Received 27 May, published by the council 24 Jul 2026 Full applications
• 6/2026/0740/FULL Withdrawn

  Land to the rear of 8 Birds Close Welwyn Garden City AL7 4AR

  Erection of a single storey detached dwelling with basement

  Received 27 Apr, published by the council 24 Jul 2026 Full applications
• 6/2026/1231/FULL Withdrawn

  St Johns Church Of England Jmi School Lemsford Village Lemsford Welwyn Garden City AL8 7TR

  Installation of new fencing and gates across the school boundary adjacent to the main road

  Received 13 Jul, published by the council 30 Jul 2026 Full applications
• 6/2026/0960/FULL Refused

  15 Tiger Moth Way Hatfield AL10 9LT

  Change of use of general amenity land to residential garden and erection of a 2 metre high timber boundary fence following removal of existing hedge and boundary treatment

  Received 1 Jun, published by the council 30 Jul 2026 Full applications