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Planning application

6/2026/0848/PN8

45 Garden Avenue Hatfield AL10 8LL

Granted Welwyn Hatfield Class A – enlargement, improvement or other alteration of a dwellinghouse - PRIOR APPROVAL

Proposal

Prior approval for the erection of a single storey rear extension measuring 5.5m in depth, 3.25m in height and 3m to the eaves following the demolition of existing conservatory

As published by the council, reference 6/2026/0848/PN8

Timeline

Dates from the published record

  1. 13 May 2026

    Received by Welwyn Hatfield

  2. 19 May 2026

    Validated

    Checked as complete and ready for consideration.

  3. 25 Jun 2026

    Decision issued: Prior Approval Not Required

  4. 24 Jul 2026

    Added to PlanIndex

What a grant of permission means

The process from here

Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.

Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.

About prior approval applications

How this application type works

Prior approval applications arise where permitted development rights already grant the principle of the work, such as larger home extensions, changes of use to housing or agricultural buildings. The council may only consider the specific matters set out in the rules, for example transport, flooding or appearance, and in many classes the work may proceed if the council does not respond within the deadline, commonly 56 days.

More on prior approval applications in our guide

Nearby applications

Within 500 metres

  • 6/2021/1705/PN8 Granted

    248 Bishops Rise Hatfield AL10 9QT

    Prior approval for the erection of a single storey rear extension measuring 4.5m in depth, 2.86m in height and 2.86m to the eaves.

    27 May 2021 117m away Prior approval
  • 24 Garden Avenue Hatfield AL10 8LN

    Erection of a single storey rear extension.

    7 Apr 2026 145m away Householder
  • 6/2026/0748/LAWP Awaiting decision

    72 Cherry Way Hatfield AL10 8LD

    Certificate of lawfulness for non-material Change of Use from C3 (single-family dwelling) to C2 (residential institution) to establish a children’s home accommodating 1 to 2 service users

    28 Apr 2026 191m away Lawful development
  • Derelict Garages off Hollyfield Hatfield AL10 8LW

    Submission of details pursuant to condition 3 (Landscape and Ecological Management Plan), 4 (Landscaping Scheme), 5 (Landscape Management Plan), 6 (Sound Insulation), 7 (Materials), 8 (Refuse and Recycling), 9 (Cycle Storage), 10 (Energy & Sustainability), 11 (EV Charging Facilities), 12 (Renewable energy), 13 (Acccessible and adaptable homes) and 14 (fire hydrant)

    30 Sep 2022 199m away Conditions
  • 169 Bishops Rise Hatfield AL10 9EP

    Certificate of lawfulness for the erection of a single storey rear extension

    27 May 2026 202m away Lawful development
  • 6/2026/0620/HOUSE Awaiting decision

    1 Old Leys Hatfield AL10 8LR

    Erection of a two-storey side extension, associated roof alterations, and the erection of a brick boundary wall

    8 Apr 2026 223m away Householder

In Welwyn Hatfield

  • 6/2026/0895/PN8 Granted

    29 Roe Green Lane Hatfield AL10 0SH

    Prior approval for the erection of a single storey rear extension measuring 6m in depth, 3m in height and 2.8m to the eaves following demolition of detached garage

    20 May 2026 Prior approval
  • 6/2026/1265/PN8 Awaiting decision

    1 Newstead Hatfield AL10 9DH

    Prior approval for a single storey rear extension measuring 6.00m in depth, 2.60m to the eaves and the maximum height of 3.00m

    20 Jul 2026 Prior approval
  • 6/2026/0995/PN8 Granted

    2 Corner View Welham Green Hatfield AL9 7DH

    Prior approval for a single storey rear extension measuring 4m in depth, 2.2m to the eaves and the maximum height of 3.6m

    5 Jun 2026 Prior approval
  • 6/2026/1217/PN8 Awaiting decision

    48 Great Ganett Welwyn Garden City AL7 3DE

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

    13 Jul 2026 Prior approval
  • Tesco Stores Ltd Great North Road Hatfield AL9 5JY

    Prior approval for a Solar PV installation to reduce electrical consumption and therefore carbon emissions at the commercial property

    14 May 2026 Prior approval