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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
30,760Searchable applications
303Recorded as pending
87%Approval rate · 25,609 approved or refused records
3,367Refused applications

22,242 approved · 3,367 refused · 1,638 withdrawn. Received dates in our records: 29 Apr 1948 to 13 Oct 2026. Most recent record check: 19 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2015/2469/FULL

    Erection of 1no six bedroom detached dwellinghouse following demolition of existing dwellinghouse

    84 Pine Grove, Brookmans Park, Hatfield, AL9 7BW

    Received 15 Dec 2015
  2. Decided - Granted6/2015/2144/LB

    Demolition of existing rear extension

    30 High Street Welwyn AL6 9EQ

    Received 15 Oct 2015
  3. Decided - Granted6/2021/1832/EM

    Erection of single storey front infill extension, and relocation of hedge.

    1 Melbourne Court Welwyn Garden City AL8 6LL

    Received 14 Jun 2021
  4. Decided - Granted6/2018/2313/PN8

    Prior approval for the erection of a single storey rear extension measuring 3.855m in depth, 2.9m in height and 2.9m to the eaves

    42 Redhall Drive Hatfield AL10 9EE

    Received 7 Sept 2018
  5. Decided - Granted6/2022/1233/EMT

    1 x Silver Birch to remove 3 low limbs 1 x Goat Willow to remove 5 limbs

    108 Lemsford Lane Welwyn Garden City AL8 6YP

    Received 25 May 2022
  6. Decided - Granted6/2016/2548/LAWP

    Certificate of Lawfulness proposed for enclosure of existing verandah to form conservatory and retrospective for decking

    5 Gobions Way Little Heath Potters Bar EN6 1NW

    Received 29 Nov 2016
  7. Decided - Granted6/2023/2276/FULL

    Retention of two animal shelters and erection of a further two identical animal shelters

    Postern Gate Farm Newgate Street Village Hertford SG13 8QR

    Received 10 Nov 2023
  8. Decided - Granted6/2024/1839/HOUSE

    Part single, part two storey rear extension, part demolition of existing garage, alterations to openings and extension to driveway

    29 Brockswood Lane Welwyn Garden City AL8 7BE

    Received 25 Sept 2024
  9. Decided - RefusedN6/2014/2183/FP

    Erection of two storey extension

    Peartree Respite Centre, Knella Road, Welwyn Garden City, AL7 3QJ

    Received 3 Oct 2014
  10. Decided - Refused6/2016/2730/HOUSE

    Erection of extension to existing double garage to form home office

    1 Stanborough Mews Welwyn Garden City AL8 6DB

    Received 29 Dec 2016
  11. Decided - Granted6/2016/0177/PN8

    Prior notification for the erection of a single storey rear extension

    26 Starling Lane, Cuffley, Potters Bar, EN6 4JX

    Received 28 Jan 2016
  12. Decided - GrantedN6/2015/1446/TC

    Prune back top two branches of Silver birch by up to 1.5m.

    28 Great Dell, Welwyn Garden City, AL8 7HY

    Received 7 Jul 2015
  13. Decided - Granted6/2017/0841/EM

    Erection of single storey rear and side extension, following demolition of single storey outbuilding, with conversion of roof and part of garage

    12 Parkway Close Welwyn Garden City AL8 6HJ

    Received 21 Apr 2017
  14. Decided - Granted6/2022/0245/LAWE

    Certificate of lawfulness for existing internal layout

    56 Bridge Road East Welwyn Garden City AL7 1JU

    Received 3 Feb 2022
  15. Decided - Withdrawn6/2020/1160/VAR

    Variation of condition 25 (approved plans and details) on planning permission 6/2019/0217/MAJ

    Northaw House Coopers Lane Northaw Potters Bar EN6 4NG

    Received 21 May 2020
  16. Decided - Granted6/2023/0003/LB

    Replacement of roof slates, battens and insulation

    10 Mill Lane Welwyn AL6 9ET

    Received 3 Jan 2023
  17. Appeal Decided - Allowed6/2021/3355/TPO

    Cherry Tree - to come down, and stump removal (as advised by a tree surgeon). The tree is decaying on the compression side and is tilting in the direction of No 10 and No 12 Bluebells

    10 Bluebells Welwyn AL6 0XD

    Received 29 Nov 2021
  18. Decided - Granted6/2016/0533/HOUSE

    Erection of larger orangery following removal of existing conservatory

    26 Spinney Lane Welwyn AL6 9TF

    Received 30 Mar 2016
  19. Decided - Granted6/2024/2382/HOUSE

    Retention of wooden shed

    13 Newfields Welwyn Garden City AL8 6YS

    Received 13 Dec 2024
  20. Decided - Granted6/2021/2739/COND

    Submission of details pursuant to condition 1 (details of the fencing and landscaping) on planning application 6/2021/1762/FULL

    Stables at Hawkshead Road, Brookmans Park, Hatfield, EN6 1NL

    Received 22 Sept 2021
  21. Decided - Refused6/2024/1324/TPO

    TPO 915 (2018) T1 (Hornbeam) Re-coppice of Hornbeam to approximately 2m to allow adequate re growth. Old Hornbeam stool is close to the garage and has signs of decay from previous pruning wounds. Also a potential inclusion on the south side.

    5A Roundabout Lane Welwyn AL6 0TH

    Received 10 Jul 2024
  22. Decided - GrantedN6/2014/0414/FP

    Erection of porch following demolition of existing porch

    35 Marsden Green, Welwyn Garden City, AL8 6YD

    Received 4 Mar 2014
  23. Appeal Decided - Dismissed6/2023/1556/HOUSE

    Erection of porch to front elevation (retrospective)

    5 Mimram Walk Welwyn AL6 9EZ

    Received 27 Jul 2023
  24. Decided - GrantedN6/2014/1634/FP

    Erection of part single, part two storey rear extension, first floor side extension and part conversion of outbuilding to utility space

    11 Reddings, Welwyn Garden City, AL8 7LA

    Received 18 Jul 2014

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 permission drawings: how to read plans

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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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