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
22,919Searchable applications
313Recorded as pending
86%Approval rate · 18,664 approved or refused records
2,629Refused applications

16,035 approved · 2,629 refused · 1,181 withdrawn. Received dates in our records: 5 Jan 2005 to 2 Oct 2026. Most recent record check: 14 Oct 2026. Counts reflect the last collected status; some records may be out of date.

Local planning information

Council sources checked 14 Sept 2026

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 - Granted6/2020/3112/VAR

    Variation of condition 10 (approved plans) on planning permission 6/2020/0180/FULL

    Beecholme 54 Codicote Road Welwyn AL6 9UJ

    Received 23 Nov 2020
  2. Decided - Refused6/2024/2399/COND

    Submission of details pursuant to condition 1 (Travel Plan) on planning permission 6/2018/2943/MAJ

    Royal Veterinary College Hawkshead Lane North Mymms AL9 7TA

    Received 18 Dec 2024
  3. Decided - Granted6/2019/3255/COND

    Submission of details pursuant to condition 1 (materials) on planning permission 6/2019/0308/FULL

    26 Pine Grove Brookmans Park Hatfield AL9 7BS

    Received 30 Dec 2019
  4. Decided - Granted6/2017/2355/HOUSE

    Erection of single storey side extension

    103 Crawford Road Hatfield AL10 0PF

    Received 13 Oct 2017
  5. Decided - Granted6/2018/2343/TPO

    Reduce Oak T1 TPO 757 (2018) by 10%

    116 Howlands Welwyn Garden City AL7 4RG

    Received 12 Sept 2018
  6. Decided6/2025/0925/TC

    Willow tree to reduce by approximately 30% (will remove 10-12ft of growth from where the tree looks to have been reduced before).

    27 Lemsford Village Lemsford Welwyn Garden City AL8 7TN

    Received 19 May 2025
  7. Decided - Granted6/2020/1090/HOUSE

    Erection of a two storey rear extension

    5 Rectory Close Essendon Hatfield AL9 6HG

    Received 14 May 2020
  8. Decided - Granted6/2023/1893/EMT

    1 x Sycamore to reduce by approximately 2.5m in height and 2m in width 1 x Oak to reduce by 1.5m in height and width

    26 Beehive Green, Welwyn Garden City, AL7 4BG

    Received 12 Sept 2023
  9. Decided - Granted6/2025/1647/HOUSE

    Raising of existing rear and part side flat roof and insertion of roof lights, window replacement throughout, changes to front doorways and new rear bi-fold doors, new parking bay and patio area

    9 Graysfield Welwyn Garden City AL7 4BL

    Received 31 Jul 2025
  10. Decided - Refused6/2018/0452/MAJ

    Retention of existing ground floor and basement retail use (A1) with the first floor converted and extended from A1 retail storage to four storeys (C3), comprising of 18 flats (6x 1-bed and 12 x 2-bed) and reconfigurations to the ground and basement levels.

    41-43 Town Centre Hatfield AL10 0JJ

    Received 14 Feb 2018
  11. Decided - Granted6/2022/0401/HOUSE

    Erection of single storey front and single storey rear extensions with insertion of roof lights and new patio with steps

    67 Digswell Rise Welwyn Garden City AL8 7PT

    Received 21 Feb 2022
  12. Decided - Granted6/2017/0550/MAJ

    Erection of a 75 bed elderly care home development (C2) with 24 parking bays and associated landscaping.

    Plot 6000 Land adjacent to Porsche Garage Hatfield Avenue Hatfield Business Park Hatfield AL10 9UA

    Received 20 Mar 2017
  13. Decided - Granted6/2017/2897/HOUSE

    Erection of a two storey rear extension

    10 Lytton Gardens Welwyn Garden City AL8 6EG

    Received 13 Dec 2017
  14. Decided - Granted6/2022/0320/EMH

    Erection of a single storey rear extension and insertion of bi-folding doors to existing ground floor rear elevation. Work to also include replacement of existing windows and doors to both front and rear elevations, at ground floor and first floor levels and re-roofing of existing roof.

    3 Attimore Road Welwyn Garden City AL8 6LH

    Received 10 Feb 2022
  15. Decided - Refused6/2022/2319/COND

    Submission of details pursuant of condition 8 (external materials) on planning permission 6/2019/2431/MAJ

    Link Drive Car Park Link Drive Hatfield AL10 8TY

    Received 4 Oct 2022
  16. Decided - Refused6/2018/0925/FULL

    Change of use from amenity to residential land, to include new timber fence with brick piers.

    5 Wellington Drive Welwyn Garden City AL7 2NL

    Received 9 Apr 2018
  17. Decided6/2025/1844/TC

    T1 - 1 x Cherry to reduce overlong branches by around 1m, achieving a more compact shape. Heavily extending over neighbours garden. Reduce to balance crown T2 - 1 x Plum to reduce by approximately 1m from the highest point, balance remaining stems to suit. Reduce to retain size and shape for garden

    21 Springfields Welwyn Garden City AL8 6XS

    Received 28 Aug 2025
  18. Decided - Granted6/2018/2449/EM

    1x Horn Beam Reduce by 20% 1x Self set Holly tree Reduce by 30%

    104 Parkway Welwyn Garden City AL8 6HL

    Received 25 Sept 2018
  19. Decided - Refused6/2019/0950/LAWP

    Certificate of lawfulness for the erection of a single storey rear extension

    9 Halifax Way Welwyn Garden City AL7 2QH

    Received 18 Apr 2019
  20. Decided - Granted6/2023/2063/FULL

    Change of use of amenity land for the formation of new vehicular access together with proposed driveway and hard standing to existing dwelling.

    124 Harmer Green Lane Digswell Welwyn AL6 0ET

    Received 10 Oct 2023
  21. Decided - Granted6/2018/2054/TPO

    Fell 4 x unknown species trees covered by TPO 657 (2017)

    22 Gwynfa Close Welwyn AL6 0PR

    Received 7 Aug 2018
  22. Decided - Granted6/2020/1635/FULL

    Replace windows with uPVC and renewal of garden gate

    131-141 Longcroft Lane Welwyn Garden City AL8 6EL

    Received 8 Jul 2020
  23. Decided - Granted6/2023/0178/LAWP

    Certificate of lawfulness for proposed garage conversion to include replacement of garage door with window and alteration of opening to side elevation

    16 Wolves Mere Woolmer Green SG3 6JW

    Received 24 Jan 2023
  24. Decided - Granted6/2023/0840/HOUSE

    Erection of single storey front and rear extension

    11 Churchill Crescent Welham Green Hatfield AL9 7DQ

    Received 19 Apr 2023

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.

  • 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.

  • 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.

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