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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
30,521Searchable applications
303Recorded as pending
87%Approval rate · 25,397 approved or refused records
3,346Refused applications

22,051 approved · 3,346 refused · 1,622 withdrawn. Received dates in our records: 29 Apr 1948 to 13 Oct 2026. Most recent record check: 18 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2017/1123/LAWP

    Certificate of lawfulness for a single storey rear extension

    7 The Wades Hatfield AL10 8LB

    Received 24 May 2017
  2. Decided - Granted6/2025/2334/HOUSE

    Erection of first floor front/side extension, alteration of main roof and installation of first floor side window

    28 Homewood Avenue Cuffley Potters Bar EN6 4QR

    Received 5 Nov 2025
  3. Decided - Granted6/2020/0006/EM

    Formation of hardstanding

    23 Pentley Park Welwyn Garden City AL8 7RT

    Received 6 Jan 2020
  4. Decided - SplitN6/2013/2367/DS

    Discahrge of conditions 4 (landscaping), 10 (archaeology), 12 (lighting), 13 (construction management plan) and 15 (sustainability) of planning permission N6/2006/0923/OP

    Sir Frederic Osborn School, Herns Lane, Welwyn Garden City, AL7 2AF

    Received 6 Nov 2013
  5. Decided - Granted6/2018/1610/HOUSE

    Erection of part single storey, part two storey rear extension

    27 Warren Close Hatfield AL10 0AL

    Received 18 Jun 2018
  6. Decided - Granted6/2024/1361/HOUSE

    Erection of a part single, part two storey rear extension, detached storage shed and side access gate following demolition of conservatory, garage conversion replacing door for window, fenestration alterations including insertion of window to first floor side elevation

    8 Ploughmans End Welwyn Garden City AL7 2JG

    Received 16 Jul 2024
  7. Decided - Granted6/2025/1495/LAWP

    Certificate of lawfulness for driveway, dropped kerb and an electric vehicle charging point installed on the front elevation of the property.

    65 High Dells Hatfield AL10 9JD

    Received 9 Jul 2025
  8. Decided - Granted6/2016/0814/HOUSE

    Erection of single storey rear conservatory

    69 Attimore Road, Welwyn Garden City, AL8 6LG

    Received 28 Apr 2016
  9. Decided - Granted6/2020/1988/PN8

    Prior approval for the erection of a single storey rear extension measuring 3.5m in depth, 3.55m in height and 2.40 to the eaves.

    7 Cromer Hyde Lane Lemsford Welwyn Garden City AL8 7XE

    Received 27 Jul 2020
  10. Decided - Granted6/2016/0713/EM

    Erection of single and two storey rear extensions and alterations

    18 Barleycroft Road, Welwyn Garden City, AL8 6JU

    Received 13 Apr 2016
  11. Decided - Granted6/2017/1892/LAWP

    Certificate of lawfulness for the erection of a single storey rear extension following Prior Notification

    288 Bishops Rise Hatfield AL10 9QT

    Received 21 Aug 2017
  12. Decided - Granted6/2022/0830/EMT

    Reduce crowns of 1 x cherry and 1 x field maple by 25% to reshape and reduce root growth

    5 Hurstlings Welwyn Garden City AL7 3LX

    Received 5 Apr 2022
  13. Decided - Granted6/2016/1270/HOUSE

    Erection of ground floor rear extension and internal alterations

    23 Sherrardspark Road, Welwyn Garden City, AL8 7JW

    Received 23 Jun 2016
  14. Decided - GrantedC6/1987/0805/FP

    Single storey rear extension

    24 Vine Close, Welwyn Garden City, AL8 7PS

    Received 1 Jan 1987
  15. Decided - Refused6/2022/2780/HOUSE

    Erection of two storey side and part two storey and single storey rear extension and widening of dropped kerb.

    3 Ellenbrook Lane Hatfield AL10 9RW

    Received 7 Dec 2022
  16. Decided - Granted6/2018/0912/LAWP

    Certificate of lawfulness for existing roof cut back to allow construction of a new dormer

    4 Crop Common Hatfield AL10 0DF

    Received 3 Apr 2018
  17. Decided - Granted6/2019/2348/PN1

    Prior approval for change of use of part of an agricultural grain store to a flexible commercial use within Use Class B8 (storage or distribution)

    Potterells Farm, Station Road, Welham Green, Hatfield, AL9 7PG

    Received 24 Sept 2019
  18. Decided - Granted6/2020/0706/EM

    Fell 1 x Thuja Tree [T6]

    39 Woodland Rise Welwyn Garden City AL8 7LJ

    Received 12 Mar 2020
  19. Decided - Split6/2026/0985/COND

    Submission of details pursuant of condition 5 (archaeology)) on planning permission 6/2023/1532/OUTLINE

    Land at South Way Hatfield AL10 8HS

    Received 4 Jun 2026
  20. Decided - Granted6/2023/0482/HOUSE

    Erection of a single storey side extension following demolition of existing porch, single storey side extension with insertion of rooflights, following part garage conversion plus addition of 2 x sun pipes to existing pitched roof

    1 Pleasant Rise Hatfield Hertfordshire AL9 5DR

    Received 2 Mar 2023
  21. Decided - Split6/2024/0696/COND

    Submission of details pursuant to condition number 2 (Construction Traffic Management Plan), condition number 3 (Landscape Ecological Management Plan) and condiiton number 4 (Badger Walk-Over Survey) on planning permission 6/2023/0907/FULL

    59 New Road Digswell Welwyn AL6 0AL

    Received 15 Apr 2024
  22. Decided - Granted6/2018/2866/TPO

    Crown reduction of 1x T1 Oak Tree by 4m Covered by TPO 585(2016)

    High Trees Leggatts Park Great North Road Little Heath Potters Bar EN6 1NZ

    Received 7 Nov 2018
  23. Decided - Granted6/2023/0129/PN8

    Prior approval for a single storey rear extension with skylight measuring 4m in depth, 2.90m in height and 2.70m to the eaves

    10 Skimpans Close Welham Green Hatfield Hertfordshire AL9 7PB

    Received 18 Jan 2023
  24. Decided - Granted6/2020/2275/TPO

    Reduce T1 sycamore height by 30%

    41 High Street Welwyn AL6 9EF

    Received 7 Sept 2020

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.

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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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    Published Updated

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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