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England · Local authority

Welwyn Hatfield Borough Council
Planning applications.

Explore collected planning applications and decisions for Welwyn Hatfield Borough Council. Search an address, application reference or proposal to find a record.

Collected application statistics

Collected records · All available dates
22,003Searchable applications
295Recorded as pending
86%Approval rate · 17,846 approved or refused records
2,533Refused applications

15,313 approved · 2,533 refused · 1,137 withdrawn. Received dates in our records: 5 Jan 2005 to 30 Sept 2026. Most recent record check: 13 Oct 2026. Counts reflect the last collected status; some records may be out of date.

Local planning information

Council sources checked 14 Sept 2026
Planning information Planning and buildingLocal plan Our Local PlanPre-application advice Pre-application advice (planning applications)Conservation areas Schedule of properties removed from the Welwyn Conservation AreaArticle 4 directions Article 4 Directions

Conservation areas and Article 4 directions

Explore published planning boundaries and follow their source records for designation details. Coverage varies: an empty map does not mean there are no restrictions. Check the council’s current maps and documents before relying on a boundary.

Conservation areas9 mapped area records
Article 4 direction areasNo boundary records available in this collection

Interactive planning map loads with JavaScript. Dataset sources are linked below.

Download Article 4 coverage for all authorities (CSV)

Data downloaded 14 Sept 2026. Display boundaries are simplified and indicative. Map record counts are not a complete count of designations or directions.

Sources: Planning Data conservation areas and Article 4 direction areas. Contains public sector information licensed under the Open Government Licence v3.0.

More application records

  1. Decided - Granted6/2019/0976/HOUSE

    Erection of a single storey and two storey side extension following demoltion of existing side extensions

    Willow End Dixons Hill Close Welham Green Hatfield AL9 7EG

    Received 23 Apr 2019
  2. Decided - Granted6/2021/1870/HOUSE

    Erection of single rear extension & 4 new dormers to loft space.

    62 Northaw Road East Cuffley Potters Bar EN6 4LZ

    Received 17 Jun 2021
  3. Decided6/2023/2493/TC

    T8- English Elm- Remove dead tree to ground level T9- English Elm- Remove dead tree to ground level T10- European Larch- Monolith dead tree to 2m T11- Wild Cherry- Remove dead tree to ground level T12- English Elm- Remove dead tree to ground level T14- Common Hawthorn- Reduce northern and central crown by 1-2m T15- English Elm- Remove tree to ground level

    Lockleys Drive Car Park Lockleys Drive Welwyn AL6 9LU

    Received 13 Dec 2023
  4. Decided - Granted6/2018/3291/COND

    Submission of details pursuant to condition 8 (external lighting scheme) and 17 (electric charging points) on planning permission 6/2017/2104/MAJ, dated 29/05/2018

    51 Bridge Road East Welwyn Garden City AL7 1JR

    Received 31 Dec 2018
  5. Decided - Granted6/2020/3394/EMT

    Oak (T1) partial crown reduction between 1 & 2 meters to maintain a balanced shape.

    7 Old Forge Close, Welwyn, AL6 0SR

    Received 18 Dec 2020
  6. Decided - Refused6/2017/1714/PN8

    Prior approval for the erection of a single storey rear extension measuring 4m in depth, 2.80 in height and 2.50m to the eaves.

    17 Hardings Welwyn Garden City AL7 2EQ

    Received 3 Aug 2017
  7. Decided6/2022/2895/TC

    Hornbeam To reduce by 30%, located in the rear garden

    49 Sherrardspark Road Welwyn Garden City Hertfordshire AL8 7LD

    Received 22 Dec 2022
  8. Decided - Refused6/2022/2422/COND

    Submission of details pursuant of condition 7 (haul road fencing and gates) condition 11 (LEMP) condition 12 (external materials phase 1) condition 18 (external materials phase 2) on planning permission 6/2021/2125/MAJ

    Hertfordshire Constabulary Stanborough Road Welwyn Garden City AL8 6XF

    Received 19 Oct 2022
  9. Decided - Granted6/2024/2293/COND

    Submission of details pursuant of condition 3 (drainage) and 5 (piling method statement) on planning permission 6/2022/1853/MAJ

    European Knowledge Centre, Eisai Limited Mosquito Way Hatfield Hertfordshire AL10 9SN

    Received 28 Nov 2024
  10. Decided - Granted6/2022/0055/HOUSE

    Erection of part two storey side and rear extension and part single storey rear extension following the demolition of rear conservatory.

    1 Brooksfield Welwyn Garden City AL7 2BJ

    Received 10 Jan 2022
  11. Decided - Withdrawn6/2021/0731/EMT

    Fell 1 x Leylandii tree on College property at rear of garden

    Welwyn Garden City Campus Oaklands College The Campus Welwyn Garden City AL8 6AH

    Received 5 Mar 2021
  12. Decided - Granted6/2024/1847/VAR

    Variation of approved drawings on planning permission 6/2021/2744/VAR for erection of a replacement dwelling with detached garage and greenhouse following demolition of existing dwelling

    48 Bradmore Way Brookmans Park AL9 7QX

    Received 25 Sept 2024
  13. Decided - Granted6/2019/1758/COND

    Submission of details pursuant to condition 6 (Implementation of a programme of archaeological work) on planning permission 6/2017/0848/MAJ

    Entech House London Road Woolmer Green SG3 6JE

    Received 16 Jul 2019
  14. Decided - Granted6/2022/1457/LAWLB

    Certificate of lawfulness for the installation of boiler at lower ground floor level, with external flue

    4 Digswell House Monks Rise Welwyn Garden City AL8 7NX

    Received 22 Jun 2022
  15. Decided - Granted6/2018/1205/EM

    Erection of a single storey rear extension

    1 Rooks Close Welwyn Garden City AL8 6JT

    Received 3 May 2018
  16. Decided - Granted6/2023/1307/HOUSE

    Erection of single storey rear extension

    48 Woods Avenue Hatfield Hertfordshire AL10 8NA

    Received 22 Jun 2023
  17. Decided - Granted6/2019/1229/HOUSE

    Erection of single storey rear extension, infill between x 2 dormers and hip to gable roof extension

    9 Heathbrow Road Welwyn AL6 0QG

    Received 21 May 2019
  18. Decided - Granted6/2021/3286/HOUSE

    Erection of a single storey rear extension

    36 Pine Grove Hatfield AL9 7BS

    Received 19 Nov 2021
  19. Decided - Refused6/2024/0039/EM

    Erection of 2 storey side extension following demolition of existing single garage

    59 Marsden Road Welwyn Garden City AL8 6YH

    Received 5 Jan 2024
  20. Decided - Refused6/2020/1360/LAWP

    Certificate of lawfulness for installation of x2 rear dormers

    60 Brookside Crescent Cuffley Potters Bar EN6 4QJ

    Received 15 Jun 2020
  21. Decided6/2019/0386/TPO

    Fell 1 x Bay tree (T3) Trees in a Conservation Area

    27 Woodland Rise Welwyn Garden City AL8 7LJ

    Received 19 Feb 2019
  22. Decided - Granted6/2023/1542/HOUSE

    Single storey rear extension with insertion of rooflights

    33 Peartree Court Welwyn Garden City AL7 3XN

    Received 24 Jul 2023
  23. Decided - Granted6/2020/0453/HOUSE

    Erection of a single storey side extension to facilitate the erection of a garage and a single storey rear extension with a replacement raised decking area with glazing and alterations to fenestration

    28 Mardley Hill Welwyn AL6 0TS

    Received 18 Feb 2020
  24. Appeal Decided - Dismissed6/2017/1751/OUTLINE

    Outline planning permission for erection of up to 12 dwellings with all matters except access reserved, to include demolition of existing dwelling and industrial building.

    22 The Avenue Welwyn AL6 0PP

    Received 7 Aug 2017

Records are ordered by application ID, not submission date. Use search to find a particular address or proposal.

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Researching a proposal in Welwyn Hatfield Borough Council

Start with the address or application reference. Open a record to read the proposal, dates and available documents, then check the official register for the latest plans and consultation details. If nothing appears, check coverage before treating the result as a complete planning history.

How to search planning applications

Guides to planning records

All planning guides

  • Understanding planning · 13 min read

    Planning application documents: what to read first

    Understand planning application documents, officer reports and decision notices. Use a reading checklist, document table and worked example to inspect a case.

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  • Understanding planning · 13 min read

    Planning permission drawings: how to read plans

    Read planning drawings, floor plans, elevations and sections. Use labelled diagrams, a drawing comparison table and revision checks to understand a proposal.

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  • Property research · 13 min read

    Planning approval rates: how to read council statistics

    Understand planning approval rates with an interactive calculator, worked examples and comparison table. Check sample sizes, outcomes and coverage before comparing.

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    Published Updated

What these statistics cover

These figures describe applications collected by PlanningTrack for Welwyn Hatfield Borough Council, across all dates currently available. They are a partial dataset, rather than an authority-wide performance measure. The date range does not establish continuous historical coverage.

The approval percentage is approved records divided by approved plus refused records. Pending, withdrawn and unknown outcomes are excluded. No percentage is shown until there is an approved or refused record.

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