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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
17,916Searchable applications
298Recorded as pending
86%Approval rate · 14,440 approved or refused records
2,000Refused applications

12,440 approved · 2,000 refused · 904 withdrawn. Received dates in our records: 5 Jan 2005 to 30 Sept 2026. Most recent record check: 11 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 Counts reflect the last collected status; some records may be out of date.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 - Refused6/2025/1329/FULL

    Replacement of all first floor windows and a loft conversion with 4 no. new dormer windows, 3 new conservation rooflights, associated alterations, and refurbishments to the existing retail building use class E(a) to facilitate change of use to an estate agents class E(c)

    41 Wigmores North Welwyn Garden City AL8 6PG

    Received 25 Jun 2025
  2. Decided - Withdrawn6/2020/1332/EMT

    Reduce 1 x Hornbeam Tree by 5%

    15 Pitsfield Welwyn Garden City AL8 7SJ

    Received 11 Jun 2020
  3. Decided - Granted6/2023/0916/COND

    Submission of details pursuant to condition 1 (Arboricultural Method Statement) on planning permission 6/2023/0024/HOUSE

    38 Osborne Road Little Heath Potters Bar Hertfordshire EN6 1SF

    Received 28 Apr 2023
  4. Decided - Granted6/2019/2320/HOUSE

    Erection of a single storey rear extension

    33 Station Road Welham Green Hatfield AL9 7PF

    Received 20 Sept 2019
  5. Decided - Granted6/2021/1257/EM

    Replace existing 8ft x 10ft garden shed with a similar one in rear garden

    7 Longcroft Lane Welwyn Garden City AL8 6EB

    Received 19 Apr 2021
  6. Decided - Granted6/2018/1983/FULL

    Erection of acoustic shelter and wash down facility and installation of biological washdown water treatment and recycling system to the south west side of the existing workshop.

    50 Reynards Road Welwyn AL6 9TP

    Received 26 Jul 2018
  7. Decided - Granted6/2020/3041/EMT

    Reduce 1 X Maple by 1.5m height and 2m width

    160 Howlands Welwyn Garden City AL7 4RG

    Received 17 Nov 2020
  8. Decided - Refused6/2019/2968/LAWE

    Certificate of lawfulness for the retention of commercial vehicle storage and repairs

    The Willows Marshmoor Lane Welham Green Hatfield AL9 7HT

    Received 26 Nov 2019
  9. Decided - Granted6/2021/1923/HOUSE

    Erection of single storey side extension with insertion of roof lights

    20 Heron Way Hatfield AL10 8QL

    Received 24 Jun 2021
  10. Decided - Granted6/2024/2209/COND

    Submission of details pursuant of condition 24 (scheme to mitigate the noise from new plant and equipment) on planning permission 6/2021/3422/MAJ

    Car Park Salisbury Square Hatfield AL9 5AD

    Received 15 Nov 2024
  11. Decided6/2026/1373/TC

    1 x Ash to fell. Reduce 1 x Maple by 3m in height and 2.5m in width.

    7 Parkway Close Welwyn Garden City AL8 6HJ

    Received 3 Aug 2026
  12. Decided6/2020/1700/TC

    Fell 1x Fir and 1x Magnolia to rear

    10 Densley Close Welwyn Garden City AL8 7JX

    Received 14 Jul 2020
  13. Decided - Refused6/2018/3014/FULL

    Erection of 3 storey rear extension reconfiguration of existing building for B1 use and associated works

    68 Great North Road Hatfield AL9 5ER

    Received 26 Nov 2018
  14. Decided - Granted6/2019/1312/PN14

    Prior Approval for the demolition of existing building

    1 and 1A town centre Hatfield AL10 0JZ

    Received 29 May 2019
  15. Decided6/2024/0820/TC

    1 x Cherry to remove in sections to ground level

    15 The Old Drive Welwyn Garden City AL8 6TB

    Received 1 May 2024
  16. Decided - Granted6/2020/2195/TPO

    Reduce and shape 1 x T1 Beech by 3m. Fell 1 x Lawson Cypress to ground level.

    3 The Dell Digswell Welwyn AL6 0BQ

    Received 28 Aug 2020
  17. Decided - Granted6/2024/1210/EM

    Change of guttering, downpipes, soffits and fascia materials to uPVC

    36 Parkway Welwyn Garden City AL8 6HQ

    Received 27 Jun 2024
  18. Decided - Granted6/2025/1639/EMT

    1 x Beech 3 x Limbs to reduce by approx 2m in height and width

    10 Mannicotts Welwyn Garden City AL8 7BW

    Received 30 Jul 2025
  19. Decided - Granted6/2020/1659/EMT

    Reduce 1 x Deodar Cedar by 4m height & 1.5m width

    600 Howlands Welwyn Garden City AL7 4ET

    Received 9 Jul 2020
  20. Decided - Granted6/2020/1608/EM

    Outdoor room in garden

    11 High Oaks Road Welwyn Garden City AL8 7BJ

    Received 6 Jul 2020
  21. Decided - Granted6/2020/3263/HOUSE

    Erection of a single storey side/rear extension

    16 Endymion Road Hatfield AL10 8AS

    Received 4 Dec 2020
  22. Decided - Granted6/2024/0050/EMT

    Silver Birch tree - to remove branch overhanging neighbour's garden and reduce height of the main tree stem by 4m

    3 Daniells Welwyn Garden City AL7 1QY

    Received 8 Jan 2024
  23. Decided - Granted6/2023/2146/HOUSE

    Erection of a summer house

    2 Tolmers Gardens Cuffley Potters Bar EN6 4JE

    Received 23 Oct 2023
  24. Decided - Split6/2024/1335/COND

    Submission of details pursuant to condition number 2 (Replacement Window Details) and 5 (Details of Bin Storage) on planning permission 6/2022/2632/FULL

    31A Howardsgate Welwyn Garden City AL8 6AP

    Received 11 Jul 2024

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

View all applications

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

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    Planning application documents: what to read first

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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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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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