PlanningTrack
Get started

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
24,414Searchable applications
313Recorded as pending
86%Approval rate · 20,006 approved or refused records
2,772Refused applications

17,234 approved · 2,772 refused · 1,273 withdrawn. Received dates in our records: 5 Jan 2005 to 2 Oct 2026. Most recent record check: 15 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2024/0937/TPO

    T1-Pine Fell to ground level as it is dead covered by TPO 774 (2018)

    Presbytery 141 Woodhall Lane Welwyn Garden City AL7 3TP

    Received 20 May 2024
  2. Decided - Granted6/2022/2240/LB

    Insertion of flue to main bathroom to facilitate new boiler

    4 Astwick Manor Coopers Green Lane Hatfield AL10 9BP

    Received 28 Sept 2022
  3. Decided - Refused6/2016/1954/HOUSE

    Erection of boundary wall following removal of existing hedge

    66 Hollybush Lane, Welwyn Garden City, AL7 4JW

    Received 22 Sept 2016
  4. Decided6/2025/0974/TC

    Reduce 1 x Sycamore by cutting lateral branches by 2.5m

    7 High Oaks Road Welwyn Garden City AL8 7BJ

    Received 27 May 2025
  5. Decided - Refused6/2020/2141/HOUSE

    Replacement entrance gates

    Nyn Manor Vineyards Road Northaw Potters Bar EN6 4PQ

    Received 24 Aug 2020
  6. Decided - Granted6/2020/0743/HOUSE

    Erection of a single storey rear extension

    6 Park Close Hatfield AL9 5AY

    Received 17 Mar 2020
  7. Decided - Granted6/2018/3067/PN8

    Prior approval for erection of single storey rear extension measuring 8m in depth, 2.800m in height, 2.800m to the eaves

    74 Brocket Road Welwyn Garden City AL8 7TU

    Received 30 Nov 2018
  8. Decided - Granted6/2019/0734/FULL

    Expansion of existing playground

    St Michaels Woolmer Green School 12 London Road Woolmer Green Knebworth SG3 6JP

    Received 28 Mar 2019
  9. Decided - Granted6/2018/0251/HOUSE

    Erection of single storey rear extension.

    13 Moorend Welwyn Garden City AL7 4QL

    Received 26 Jan 2018
  10. Decided - Granted6/2020/0676/HOUSE

    Erection of a single storey front extension with canopy and alteration to fenestration

    19 Becket Gardens Welwyn AL6 9JE

    Received 10 Mar 2020
  11. Decided - Granted6/2026/1068/COND

    Submission of details pursuant of condition 15 (additional plans) on planning permission 6/2021/3290/FULL varied by 6/2025/0435/VAR

    Land between The Manor House and Whitehall Field Cottage Essendon Hill Essendon AL9 6AJ

    Received 19 Jun 2026
  12. Decided6/2021/1173/TC

    Liquidambar and Birch - 6 to 8ft crown reduction

    16 Barleycroft Green Welwyn Garden City AL8 6JY

    Received 12 Apr 2021
  13. Decided - Granted6/2021/1634/LB

    Erection of illuminated and non-illuminated signs to the exterior of the building

    Eight Bells 2 Park Street Hatfield AL9 5AX

    Received 21 May 2021
  14. Decided - Refused6/2026/0960/FULL

    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

    15 Tiger Moth Way Hatfield AL10 9LT

    Received 1 Jun 2026
  15. Decided - Granted6/2019/0749/LAWE

    Certificate of Lawfulness for the use of land as a paddock, for the keeping and exercising of recreational horses, solely used by occupiers of Tylersley Farm

    Tylersley Farm Tylers Causeway Newgate Street Hertford SG13 8QN

    Received 29 Mar 2019
  16. Decided - Granted6/2020/3045/HOUSE

    Erection of side dormer extension to facilitate habitable rooms above garage

    9 Hook Lane Northaw Potters Bar EN6 4DA

    Received 18 Nov 2020
  17. Decided - Granted6/2024/0107/EM

    Installation of an Air Source Heat Pump for Central Heating and Hot water to replace a Gas Boiler

    55 Valley Road Welwyn Garden City AL8 7DH

    Received 15 Jan 2024
  18. Decided - Granted6/2018/2365/EM

    Fell 1x Silver Birch Tree

    313 Knightsfield Welwyn Garden City AL8 7NJ

    Received 14 Sept 2018
  19. Decided - Split6/2026/0114/COND

    Submission of details pursuant to condition 1 (Landscaping details), condition 2 (landscape works), condition 3 (permitted development) and condition 4 (Approved plans) on planning permission 6/2025/0005/FULL

    33 Lemsford Village Lemsford Welwyn Garden City AL8 7TR

    Received 26 Jan 2026
  20. Decided - Granted6/2026/0492/HOUSE

    Erection of single storey rear infill extension, garage conversion and alterations to fenestration

    60 Hill Rise Cuffley Potters Bar EN6 4RG

    Received 17 Mar 2026
  21. Decided - Withdrawn6/2026/0885/EM

    Installation of solar panels

    166 Thistle Grove Welwyn Garden City AL7 4AQ

    Received 19 May 2026
  22. Decided - Granted6/2018/0385/HOUSE

    Erection of single storey rear extension

    5 The Holt Welwyn Garden City AL7 2HU

    Received 6 Feb 2018
  23. Decided - Granted6/2023/0725/HOUSE

    Erection of part single, part two storey rear extension with insertion of roof lights to existing garage roof

    123 The Commons Welwyn Garden City AL7 4RZ

    Received 31 Mar 2023
  24. Decided - Granted6/2020/2874/EM

    Replacement of existing polycarbonate conservatory roof with tapco tiles to match existing dwelling

    28 Springfields Welwyn Garden City AL8 6XP

    Received 3 Nov 2020

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

  • 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.

    UK research
    Published Updated

  • 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.

    UK research
    Published Updated

  • 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.

    UK research
    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.

Check collection coverage

More planning authorities in England

Browse all authorities