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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
19,181Searchable applications
298Recorded as pending
86%Approval rate · 15,485 approved or refused records
2,155Refused applications

13,330 approved · 2,155 refused · 973 withdrawn. Received dates in our records: 5 Jan 2005 to 30 Sept 2026. Most recent record check: 11 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2024/1252/EM

    Installation of a driveway (retrospective)

    28 Little Thistle Welwyn Garden City AL7 4AE

    Received 4 Jul 2024
  2. Decided - Granted6/2022/2593/EMT

    1 x Apple to reduce by approximately 2.5m height & 1.5m radially

    47 Brockswood Lane Welwyn Garden City AL8 7BE

    Received 14 Nov 2022
  3. Decided - Granted6/2023/0536/EMT

    Reduce 1 x Silver Birch by 4m

    4 Fearnley Road Welwyn Garden City AL8 6HW

    Received 8 Mar 2023
  4. Decided - Withdrawn6/2022/2001/EM

    Dropped kerb

    4 Selwyn Crescent, Hatfield, AL10 9NN

    Received 30 Aug 2022
  5. Decided - Granted6/2019/1138/LB

    Erection of a single storey and two storey rear extension, insertion of four windows and four rooflights following demolition,external alternations to the buildings and all ancillary works

    Hill House Wildhill Road Hatfield AL9 6EB

    Received 10 May 2019
  6. Decided - Granted6/2024/1851/EM

    Insertion of roof light and corner bi-fold doors to existing extension

    45 Great Dell Welwyn Garden City AL8 7HP

    Received 26 Sept 2024
  7. Decided - Withdrawn6/2024/1129/EMT

    1 x Hornbeam (growing through fence) to remove to ground level. Tree has grown through & has now enveloped part of the existing chain-link fence which is being replaced. As such to replace the boundary fence the tree will need to be removed

    9 Fern Grove Welwyn Garden City AL8 7ND

    Received 17 Jun 2024
  8. Decided - Refused6/2019/0780/HOUSE

    Erection of a two storey rear and side extension, part single storey rear extension and hard and soft landscaping to front of garden to facilitate extension of existing driveway

    55 Heronswood Road Welwyn Garden City AL7 3ER

    Received 1 Apr 2019
  9. Decided - Granted6/2025/1859/EM

    Erection of garden office

    3 Barleycroft Green Welwyn Garden City AL8 6JY

    Received 1 Sept 2025
  10. Decided - Refused6/2022/1567/HOUSE

    Erection of a 2 storey side and single storey rear extension and minor alterations

    3 Aldock Welwyn Garden City Hertfordshire AL7 4QF

    Received 4 Jul 2022
  11. Decided - Granted6/2018/2659/EM

    Erection of single storey rear extension

    306 Knightsfield Welwyn Garden City AL8 7NQ

    Received 17 Oct 2018
  12. Decided - Granted6/2018/1468/COND

    Submission of details pursuant to condition 1 (materials samples) on planning permission 6/2016/2678/HOUSE, dated 13/02/2017

    14 Thrush Lane Cuffley Potters Bar EN6 4JU

    Received 25 May 2018
  13. Decided6/2018/3008/FULL

    Change of use of a residential existing indoor swimming pool to a commercial swimming pool (Use Class D2) - retrospective

    2A Great North Road Welwyn AL6 0PL

    Received 23 Nov 2018
  14. Decided - Granted6/2019/0656/EM

    Erection of a single storey rear extension

    47 Woodhall Lane Welwyn Garden City AL7 3TB

    Received 20 Mar 2019
  15. Decided - Granted6/2021/0765/HOUSE

    Erection of a two storey front and side extension

    15 Greenfield Hatfield AL9 5HW

    Received 9 Mar 2021
  16. Decided6/2023/2118/TC

    T1 Sycamore - Fell to ground. T2 Yew Tree - Trim hedge all over by 0.5m to reshape into a ball.

    8 Sherrardspark Road Welwyn Garden City AL8 7JP

    Received 18 Oct 2023
  17. Decided - Withdrawn6/2019/2373/COND

    Submission of details pursuant to condition 2 (soft and hard landscaping) on planning permission 6/2019/0814/FULL

    55 Bishops Rise Hatfield AL10 9BX

    Received 25 Sept 2019
  18. Decided - Granted6/2025/0570/FULL

    Change of use of from amenity land to private residential garden and enclosure with erection of new boundary fence, amendments to garden levels and demolition of existing garage and fencing.

    15 Colesdale Cuffley Potters Bar EN6 4LQ

    Received 25 Mar 2025
  19. Under Consideration6/2026/1496/LAWP

    Certificate of lawfulness for erection of single storey rear extension, side and rear extension, hip to gable loft conversion with rear dormer

    6 West View Hatfield AL10 0PJ

    Received 25 Aug 2026
  20. Decided - Granted6/2022/0863/FULL

    Erection of detached two-storey brick building for E(g) use with designated parking spaces for 6 vehicles and secure storage housing for 6 bicycles following demolition of existing timber building

    Unit 13 Peartree Farm Welwyn Garden City AL7 3UW

    Received 11 Apr 2022
  21. Decided - Granted6/2023/0381/HOUSE

    Erection of single storey rear and side extension

    68 Mill Green Road Welwyn Garden City AL7 3XF

    Received 20 Feb 2023
  22. Decided - Granted6/2025/1983/COND

    Submission of details pursuant to condition 8 (Refuse & Recycling),on planning permission 6/2025/1302/VAR

    Land adjacent to Bell Lane Bell Bar The Brookmans Park Estate AL9 7AY

    Received 15 Sept 2025
  23. Decided - Refused6/2021/1817/HOUSE

    Single storey rear extension, following demolition of existing conservatory, removal of chimney stack and erection of a first floor side extension with 2 x terrace areas. Conversion of existing garage and alterations to fenestration, plus replacement of existing cladding to front and rear first floor elevations to K render.

    3 Greenfield Hatfield AL9 5HW

    Received 11 Jun 2021
  24. Decided - Refused6/2019/1582/FULL

    Erection of 1x dwelling and 2x replacement bridges following demolition of existing buildings and bridges

    Land rear of 10-18 Mymms Drive Brookmans Park Hatfield AL9 7AF

    Received 28 Jun 2019

Records are ordered by application ID, not submission date. Use search to find a particular address or proposal.

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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

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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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