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England · Local authority

Welwyn Hatfield planning applications

PlanningTrack collects planning applications and decisions from the public planning register of Welwyn Hatfield Borough Council. Search an address, application reference or proposal. Official Welwyn Hatfield website

Collected application statistics

Collected records · All available dates
40,297Searchable applications
283Recorded as pending
86%Approval rate · 33,821 approved or refused records
4,819Refused applications

29,002 approved · 4,819 refused · 2,219 withdrawn. Received dates in our records: 29 Apr 1948 to 29 Oct 2026. Most recent record check: 9 Nov 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2024/2432/EM

    Proposed Outbuilding to rear of Dwelling

    14 Broadfield Place Welwyn Garden City AL8 6LJ

    Received 24 Dec 2024
  2. Decided - Refused6/2016/0568/EM

    Erection of two storey side extension and single storey side conservatory

    1 Hawthorns, Welwyn Garden City, AL8 7SE

    Received 24 Mar 2016
  3. Decided - GrantedS6/2009/1487/FP

    ERECTION OF SINGLE STOREY REAR EXTENSION

    47 BLUEBRIDGE ROAD, BROOKMANS PARK, HERTFORDSHIRE, AL9 7UW

    Received 15 Jul 2009
  4. Decided - Granted6/2017/2287/PN8

    Prior Approval for the erection of a single storey rear extension measuring 6m in depth, 3.6m in height and 2.45m to the eaves

    28 Bullens Green Lane Hatfield St Albans AL4 0QS

    Received 5 Oct 2017
  5. Decided - Granted6/2022/0613/COND

    Submission of details pursuant to condition 2 (contamination & Remediation) on planning application 6/2020/1890/VAR

    Entech House London Road Woolmer Green SG3 6JE

    Received 15 Mar 2022
  6. Decided - Split6/2018/2187/COND

    Submission of details pursuant to condition 3 (Material Samples)condition 4 (Bicycle store)on planning application 6/2016/2339/FULL

    23 Park Street Hatfield AL9 5AT

    Received 22 Aug 2018
  7. Decided - Granted6/2016/1566/EM

    Reduce three Leylandii trees (T16, T17 & T23) by 30%, Cut lower branches back on Beech tree (T14) and crown lift two Hornbeam trees by (T13 & T19) by up to 2 metres

    13 Roundwood Drive, Welwyn Garden City, AL8 7JZ

    Received 1 Aug 2016
  8. Decided - GrantedS6/2009/0178/FP

    ERECTION OF SINGLE STOREY REAR EXTENSION

    35 CALDER AVENUE, BROOKMANS PARK, HATFIELD, HERTFORDSHIRE, AL9 7AH

    Received 19 Feb 2009
  9. Decided - Withdrawn6/2023/2329/EM

    Erection of a double storey side extension, single storey rear extension and replacement garage

    16 Guessens Road, Welwyn Garden City, AL8 6QR

    Received 17 Nov 2023
  10. Decided - Granted6/2017/2263/LAWP

    Certificate of lawfulness for the erection of a poolhouse, detached garage, gym building and home office

    35 Carbone Hill Northaw Potters Bar EN6 4PN

    Received 4 Oct 2017
  11. Decided - GrantedN6/2008/2292/FP

    ERECTION OF SINGLE STOREY FRONT EXTENSION

    16 Dicket Mead Welwyn AL6 9NX

    Received 3 Dec 2008
  12. Decided - Granted6/2025/1889/TPO

    1 x Horse Chestnut to prune overhanging branches back to garden boundary line to crown break garden side which is approx. 8m from ground level, remainder of crown to be reduced by approx. 1.5m back to previous reduction points. 1 x Sycamore to crown reduce by 1.5m back to previous reduction points.

    Land Adjacent to 1 Welwyn Hall Gardens Welwyn AL6 9LF

    Received 3 Sept 2025
  13. Decided - Granted6/2024/1715/EMT

    Line of six beech trees to reduce height by approximately 3m and lateral branches over the gardens of 2,4 and 6 Blakemere by 2-2.5m.

    4 Blakemere Road Welwyn Garden City AL8 7PJ

    Received 6 Sept 2024
  14. Decided - GrantedN6/2012/2527/CA

    Demolition of conservatory, detached garage and two storey rear extension

    5 Ayot Green, Ayot St Peter, WELWYN, AL6 9AB

    Received 29 Nov 2012
  15. Decided - Granted6/2022/1432/LB

    Erection of single storey rear extension following removal of adjoined store, removal of kitchen window and opening up, associated works and remedial works and reintroduction of first floor window.

    12 Cromer Hyde Lane Lemsford Welwyn Garden City AL8 7XE

    Received 21 Jun 2022
  16. Appeal Decided - Allowed6/2021/1791/VAR

    Variation of condition 4 (approved plans) on planning permission 6/2019/1813/FULL

    Nyn Manor Vineyards Road Northaw Potters Bar EN6 4PQ

    Received 9 Jun 2021
  17. Decided - Granted6/2016/0739/HOUSE

    Conversion of garage

    56 Bluebell Way Hatfield AL10 9FJ

    Received 20 Apr 2016
  18. Decided - Granted6/2024/1263/HOUSE

    Erection of a part single and part two storey rear extension, single storey front extension, garden outbuilding following demolition of existing garage and alterations to driveway

    86 The Vineyard Welwyn Garden City AL8 7PU

    Received 5 Jul 2024
  19. Decided - GrantedN6/2014/2491/TC

    Reduce Hornbeam tree by 30%

    4 The Glade, Welwyn Garden City, AL8 7LG

    Received 7 Nov 2014
  20. Decided - GrantedN6/2004/1257/FP

    ERECTION OF REAR CONSERVATORY

    Digswell Bridge Digswell Lane Welwyn AL6 0SW

    Received 18 Aug 2004
  21. Decided - Granted6/2018/2545/LB

    Erection of front porch and replacement of existing garage roof to pitched tiled roof

    Digswell Water House Digswell Lane Welwyn AL6 0BY

    Received 3 Oct 2018
  22. Decided - Granted6/2018/2662/HOUSE

    Erection of single storey front extension and garage roof extension to facilitate garage conversion, replacement of existing extension roof and alterations to openings

    23 Fordwich Road Welwyn Garden City AL8 6EX

    Received 17 Oct 2018
  23. Decided - Granted6/2019/1688/HOUSE

    Erection of a two storey side extension

    69 Lavender Close Hatfield AL10 9FW

    Received 3 Jul 2019
  24. Decided - Granted6/2024/0692/LB

    Works to repair brickwork, stone copings and repoint.

    Parkside Cottage 56 Mill Lane Welwyn AL6 9ES

    Received 12 Apr 2024

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

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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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