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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
23,754Searchable applications
313Recorded as pending
86%Approval rate · 19,428 approved or refused records
2,704Refused applications

16,724 approved · 2,704 refused · 1,226 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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
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 - Granted6/2025/0533/OUTLINE

    Outline application for the single storey equestrian building over existing outdoor manege to form indoor manege and riding arena (Access, appearance, layout and scale are for approval and landscaping is a reserved matter).

    Danecroft Riding Stables 1A Vera Lane Digswell Welwyn AL6 0EW

    Received 21 Mar 2025
  2. Decided - Granted6/2016/2037/COND

    Approval of details reserved by condition 3 (Parking) on planning permission 6/2016/1656/HOUSE

    45 Poppyfields, Welwyn Garden City, AL7 2HJ

    Received 21 Sept 2016
  3. Decided - Granted6/2024/0838/HOUSE

    Erection of a single storey rear extension

    Rooks Rest 30 High Road Essendon AL9 6HW

    Received 2 May 2024
  4. Decided6/2021/3350/TC

    T1 (1 Hornbeam) - to reduce crown by 3-4m G1 (Mixed species of hedge) - to reduce hedge back to pervious height

    24 Blakemere Road Welwyn Garden City AL8 7PJ

    Received 26 Nov 2021
  5. Decided - Granted6/2019/0371/HOUSE

    Erection of single storey rear extension and alteration to front elevation following demolition of existing rear conservatory

    60 Mount Way Welwyn Garden City AL7 4LB

    Received 18 Feb 2019
  6. Decided - Granted6/2020/3196/HOUSE

    Demolition of existing conservatory. Erection of a single storey, part two storey rear extension. Alterations to fenestration.

    82 Harwood Hill Welwyn Garden City AL8 7AN

    Received 30 Nov 2020
  7. Decided - Granted6/2020/2622/COND

    Submission of details pursuant to condition 1b (remediation scheme) on planning permission 6/2018/2809/MAJ

    1 Charlotte Court William Close Welwyn Garden City AL7 4FT

    Received 9 Oct 2020
  8. Decided - Granted6/2023/0731/FULL

    Change of use of first and second floor office space, to a 2 bedroom flat. Inclusion of bin storage.

    34B High Street, Welwyn, AL6 9EQ

    Received 31 Mar 2023
  9. Decided - Granted6/2021/2375/LAWP

    Certificate of lawfulness for erection of garden shed, and conversion of garage to habitable space including alterations to fenestration.

    10 Lavender Close Hatfield AL10 9FW

    Received 11 Aug 2021
  10. Decided - Granted6/2022/1005/EM

    Replace existing pathways and paving from non-permeable to permeable material and add additional drainage. Path in front of porch to be realigned to accommodate new porch dimensions detailed within planning application 6/2021/2633/EM.

    53 Rosedale, Welwyn Garden City, AL7 1DP

    Received 28 Apr 2022
  11. Decided - Refused6/2021/1648/LAWP

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

    19 Carbone Hill Northaw Potters Bar EN6 4PJ

    Received 24 May 2021
  12. Appeal Decided - Dismissed6/2025/0911/HOUSE

    Erection of two-storey side extension to both sides of the property, incorporating double garage, single storey rear extension with balcony above, following demolition of existing double garage, shed and existing side and rear extensions

    49 The Ridgeway Cuffley Potters Bar EN6 4BD

    Received 16 May 2025
  13. Decided - Refused6/2026/0476/EMT

    Remove oak tree

    39 Woodland Rise Welwyn Garden City AL8 7LJ

    Received 16 Mar 2026
  14. Decided - Granted6/2026/1337/FULL

    Relocation of the Transfusion Medicine Vet Pod and associated parking, landscaping and associated works

    Royal Veterinary College Hawkshead Lane North Mymms AL9 7TA

    Received 30 Jul 2026
  15. Decided - Refused6/2021/1147/LAWP

    Certificate of lawfulness for the windows and doors to be replaced with energy efficient products

    9 Longmore Gardens Welwyn Garden City AL7 3NH

    Received 8 Apr 2021
  16. Decided - Split6/2025/2195/COND

    Submission of details pursuant to Condition 1 (Construction Management Plan), 2 (Proposed materials), 3 (Piling Method), 4 (Scheme for the protection of the trees), 5 (Hard and soft landscape works), 6 (Vehicle access and associated highway works), 7 (secure cycle parking), 8 (refuse bin and recycling materials) on planning permission 6/2022/1943/FULL

    Land between 48 & 50 The Ridgeway Cuffley EN6 4BA

    Received 15 Oct 2025
  17. Decided - Granted6/2016/2274/EM

    Installation of ramped access to front elevation. Installation of front door and associated landscape works

    83 Woodhall Lane Welwyn Garden City AL7 3TH

    Received 31 Oct 2016
  18. Decided - Granted6/2022/0131/FULL

    Formation of a new dwelling to the rear of No. 27 and the insertion of 1 x window involving removal of garage doors on side elevation

    27 Mill Lane Welwyn AL6 9EU

    Received 19 Jan 2022
  19. Decided - Granted6/2023/0107/LAWP

    Certificate of lawfulness for loft extension, including a rear dormer and hipped to gable roof

    29 Bulls Lane Hatfield AL9 7NY

    Received 16 Jan 2023
  20. Decided - Withdrawn6/2023/2394/TPO

    1 x Hornbeam reduce by 12m and shape crown 1 x Oak reduce crown by 5m both covered by TPO 811 (2018)

    19 Bluebells Welwyn AL6 0XD

    Received 27 Nov 2023
  21. Decided - Refused6/2025/0668/HOUSE

    Erection of a first-floor rear extension and the extension of the ground floor porch

    12 Sycamore Avenue Hatfield AL10 8LZ

    Received 7 Apr 2025
  22. Decided - Granted6/2018/0534/FULL

    Erection of a three storey building comprising 5 x two-bedroom flats with associated parking, following the demolition of existing dwelling

    33 Lemsford Road Hatfield AL10 0DL

    Received 22 Feb 2018
  23. Decided - Granted6/2024/1500/LAWP

    Certificate of lawfulness for the construction of an additional storey to facilitate the enlargement of the dwellinghouse to a maximum of approximately 8.68m in height

    6 Sutherland Way Cuffley Potters Bar EN6 4EG

    Received 7 Aug 2024
  24. Decided - Granted6/2017/0645/EM

    Fell 1 x Pine tree, 1x Hawthorn tree and 1 x Rowan tree at front of property

    1 Malmsdale Welwyn Garden City AL8 7QN

    Received 30 Mar 2017

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 application documents: what to read first

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  • 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.

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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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