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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
24,918Searchable applications
313Recorded as pending
86%Approval rate · 20,447 approved or refused records
2,812Refused applications

17,635 approved · 2,812 refused · 1,320 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2025/1922/EM

    Minor change to previous permission for extensions, and erection of fencing

    3 The Valley Green Welwyn Garden City AL8 7DQ

    Received 8 Sept 2025
  2. Decided - Granted6/2022/2851/EMT

    1 x Acer (Sycamore) -Remove major lower limb trespassing neighbours, back to main butt. Reduce and shape crown by approximately 30%, removing lateral growth by approximately 4 to 5m, cutting back to nearest suitable growing point, to leave a flowing branch line without stumps and the main canopy framework as it is trespassing neighbours.

    25 Blakemere Road Welwyn Garden City AL8 7PQ

    Received 18 Dec 2022
  3. Decided - Granted6/2017/1539/HOUSE

    Erection of single storey side and rear extension. Alterations to garage roof

    30 Great North Road Welwyn AL6 0PS

    Received 11 Jul 2017
  4. Decided - Granted6/2018/0322/EM

    Erection of 2 x single storey rear extensions following demolition of existing rear conservatory

    3 Barleycroft Green Welwyn Garden City AL8 6JY

    Received 30 Jan 2018
  5. Decided - Granted6/2020/0200/HOUSE

    Erection of single storey flat roof rear extension with installation of roof window and parapet wall to existing side lean to roof

    6 Holloways Lane Welham Green Hatfield AL9 7NP

    Received 27 Jan 2020
  6. Decided - Granted6/2016/1440/TPO

    Fell 5 x Maple trees to ground level and reduce Robina tree by 2m - Conservation Area

    27 Birdcroft Road, Welwyn Garden City, AL8 6EH

    Received 15 Jul 2016
  7. Decided - Granted6/2024/0718/EM

    Erection of single storey rear extension with insertion of rooflight and alterations to openings to existing rear elevation

    56 Marley Road Welwyn Garden City AL7 4BS

    Received 17 Apr 2024
  8. Decided6/2019/2559/TC

    Reduce 1x Hornbeam by 30%

    13 Mandeville Rise Welwyn Garden City AL8 7JT

    Received 11 Oct 2019
  9. Decided - Granted6/2020/3052/COND

    Submission of details pursuant to condition 1 (construction management plan) on planning permission 6/2019/1699/FULL

    1 Roe Green Close Hatfield AL10 9PD

    Received 18 Nov 2020
  10. Decided - Granted6/2021/2025/EMH

    Erection of a two storey side extension and changes to fenestration on rear elevation.

    6 Well Garth Welwyn Garden City AL7 3AF

    Received 2 Jul 2021
  11. Decided - Granted6/2020/3175/EMT

    1 x Lawson Cypress to fell to 1m above ground level

    8 Springfields, Welwyn Garden City, AL8 6XP

    Received 25 Nov 2020
  12. Decided - Granted6/2020/2642/EM

    417 windows to be replaced, 289 like-for-like and 128 slightly modified for strength purposes considering the current state of the windows.

    Woodside House Bridge Road Welwyn Garden City AL8 6UJ

    Received 12 Oct 2020
  13. Decided - Granted6/2023/1911/COND

    Submission of details pursuant to condition 2 (Materials) on planning permission N6/2006/1055/FP

    9 Handside Lane Welwyn Garden City AL8 6SE

    Received 14 Sept 2023
  14. Decided - Granted6/2020/1042/TPO

    Reduce 1x Sweet Chestnut tree (T2) by 2-3m (TPO 900) Reduce 1x Hornbeam tree limb over B197 (G1) by 2m (TPO 800)

    Brambles Briary Wood End Welwyn AL6 0TD

    Received 11 May 2020
  15. Decided - Granted6/2017/1832/COND

    Submission of details pursuant to condition 2 (materials samples) on planning permission 6/2015/1588/FULL, dated 14/12/2015

    94 Harmer Green Lane Digswell Welwyn AL6 0EP

    Received 17 Aug 2017
  16. Decided - Granted6/2025/0621/LAWP

    Certificate of lawfulness for loft extension with 2 velux windows to front

    17 Selwyn Crescent Hatfield AL10 9NL

    Received 31 Mar 2025
  17. Decided - Granted6/2025/0524/FULL

    Erection of canopy over paving area at club entrance

    Northaw And Cuffley Bowling Club Northaw Road East Cuffley Potters Bar EN6 4RD

    Received 20 Mar 2025
  18. Decided - Granted6/2024/0865/HOUSE

    Erection of single storey side extension, rendering, demolishing existing front porch and replacement with new porch

    41 Swanley Crescent Little Heath EN6 1NQ

    Received 8 May 2024
  19. Decided - Granted6/2018/0352/EM

    Partial conversion of garage, raising parapet wall and flat roof.

    24 Reddings Welwyn Garden City AL8 7LA

    Received 2 Feb 2018
  20. Decided - Refused6/2018/0669/EM

    Conversion of garage into habitable space including erection of single storey front extension

    12 Hurstlings Welwyn Garden City AL7 3LX

    Received 9 Mar 2018
  21. Decided6/2021/2953/TC

    Re pollard 2 x poplar trees back to previous growth points

    52 Attimore Road Welwyn Garden City AL8 6LP

    Received 14 Oct 2021
  22. Decided - Granted6/2019/1866/PN8

    Prior approval for the erection of a rear conservatory measuring 4.6m in depth, 3.5m in height and 2.4m to the eaves

    18 Stag Green Avenue Hatfield AL9 5DZ

    Received 30 Jul 2019
  23. Decided - Withdrawn6/2022/2433/FULL

    Proposed two storey and single storey rear extension and single storey front extension.

    2 Hill Ley Hatfield AL10 8LX

    Received 20 Oct 2022
  24. Decided6/2023/2025/TC

    Willow tree - Re pollard to previous points

    7 Orchard Road Welwyn AL6 9EX

    Received 2 Oct 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

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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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