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Planning application

6/2021/1967/PN8

20 Astwick Avenue Hatfield AL10 9LA

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 6m in depth, 3m in height and 3m to the eaves.

As published by the council, reference 6/2021/1967/PN8

Timeline

Dates from the published record

  1. 29 Jun 2021

    Received by Welwyn Hatfield

  2. 3 Aug 2021

    Decision issued: Prior Approval Required and Granted

  3. 30 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

  • 11 Astwick Avenue Hatfield AL10 9LB

    Erection of a single storey rear extension following demolition of an existing single storey rear extension and conservatory, installation of 4 front rooflights, 1 rear rooflight, hip to gable extension and a rear dormer to facilitate the conversion of the loft to habitable space, garage conversion to habitable space, alterations to fenestration and the erection of rear single storey garage and store

    15 Aug 2024 68m away Householder
  • 6/2026/1013/HOUSE Awaiting decision

    77 Holme Road Hatfield AL10 9LG

    Erection of a single storey rear/side extension and garage conversion with alterations to the fenestration

    9 Jun 2026 110m away Householder
  • 3 Buttercup Close Hatfield AL10 9FH

    Erection of a single storey rear extension following demolition of existing conservatory; garage conversion and first floor extension over existing garage including front dormer

    18 May 2021 188m away Householder
  • 42 Daffodil Close Hatfield Hertfordshire AL10 9FF

    Erection of 3 storey extension to front elevation, ground floor rear extension, garage conversion to granny annex and first floor gym area.

    22 Dec 2022 343m away Householder
  • 26 Daffodil Close Hatfield AL10 9FF

    Insertion of front facing window to facilitate the conversion of garage into habitable space and installation of additional front hardstanding

    20 Jan 2023 366m away Householder
  • 6/2026/0715/EIA Awaiting decision

    Land at Cooper’s Green North West Hatfield AL10 9FD

    Request for screening opinion in respect of a hybrid application

    22 Apr 2026 453m away Outline

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