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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
22,631Searchable applications
292Recorded as pending
86%Approval rate · 18,412 approved or refused records
2,594Refused applications

15,818 approved · 2,594 refused · 1,174 withdrawn. Received dates in our records: 5 Jan 2005 to 30 Sept 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2018/1428/FULL

    Rebuild of outbuilding for agricultural use, storage of agricultural materials and personal belongings ancillary to the dwelling

    Holwell Court Farm, Holwell Court, Hatfield, AL9 5RL

    Received 29 May 2018
  2. Decided - Granted6/2021/3478/EMH

    Erection of outbuilding

    45 Longcroft Lane Welwyn Garden City AL8 6EB

    Received 13 Dec 2021
  3. Decided - Granted6/2020/1607/EMT

    Reduce 1 x Pine Tree by 30%

    30 Digswell Road Welwyn Garden City AL8 7PA

    Received 6 Jul 2020
  4. Decided - Granted6/2021/1537/EMH

    Erection of a single storey rear extension with roof lantern, insertion of roof lights to existing roof and alterations to openings.

    10 Dellcott Close Welwyn Garden City AL8 7BD

    Received 13 May 2021
  5. Decided - Granted6/2019/2026/COND

    Submission of details pursuant to condition 2 (Insulation) on planning permission 6/2019/0402/FULL

    1 Longcroft House Fretherne Road Welwyn Garden City AL8 6PZ

    Received 13 Aug 2019
  6. Decided - Granted6/2024/1722/LAWP

    Certificate of lawfulness for the installation of 2-nos internal chair lifts to allow disabled access to lower ground floor and first floor

    Melbourne Stud Waterend Lane Ayot St Peter Welwyn AL6 9BB

    Received 9 Sept 2024
  7. Decided - Granted6/2025/0581/HOUSE

    Erection of a single storey rear extension, part garage conversion to habitable space and additional windows and doors to existing side walls

    26 Parkside Welwyn AL6 9DQ

    Received 27 Mar 2025
  8. Decided - Granted6/2021/2433/EMH

    Erection of a single storey rear extension and conversion of roofspace to habitable use to include a rear dormer

    26 Little Ganett Welwyn Garden City AL7 3DG

    Received 18 Aug 2021
  9. Decided - Granted6/2022/2287/HOUSE

    Erection of single storey rear extension replacing an existing extension, alterations to rear of existing garage, works to side and rear fenestrations and front driveway and erection of detached garden room.

    57 Bridge Road Welwyn Garden City Hertfordshire AL8 6UH

    Received 3 Oct 2022
  10. Decided6/2021/1002/TC

    1 x Silver Birch - fell

    3 Riverside Welwyn AL6 9NU

    Received 26 Mar 2021
  11. Decided - Granted6/2024/2283/EM

    Replacement of original paved driveway with porous resin surface. Slightly increase width of driveway running towards house to 3m to accommodate modern vehicles and improve accessibility

    31 Longcroft Lane Welwyn Garden City AL8 6EB

    Received 27 Nov 2024
  12. Decided - Refused6/2021/0762/HOUSE

    Erection of a two storey side extension and removal of existing garage

    59 Cecil Crescent Hatfield AL10 0HG

    Received 9 Mar 2021
  13. Decided - Granted6/2018/0679/VAR

    Variation of condition 2 and 3 on planning permission E6/1973/1887/, dated 16/08/1973

    Meadow Farm Northaw Road West Northaw Potters Bar EN6 4QX

    Received 12 Mar 2018
  14. Decided - Granted6/2020/0615/HOUSE

    Erection of front porch and single storey side extension

    79 Wellcroft Road Welwyn Garden City AL7 3JX

    Received 3 Mar 2020
  15. Decided - Granted6/2020/1440/VAR

    Variation of condition 5 (approved plans and details) on planning permission (6/2016/1949/FULL)

    14 East Ridgeway, Cuffley, Potters Bar, EN6 4AP

    Received 22 Jun 2020
  16. Decided6/2024/1301/TC

    65ft Copper Beech to reduce by 30% 20ft Apple tree to reduce by 30%

    16 Pentley Park Welwyn Garden City AL8 7RU

    Received 9 Jul 2024
  17. Decided6/2024/0355/TC

    1 x Silver Birch to reduce by 2m height and 2m width; and 3 x lowest branches to be shortened by around 3.5m.

    62 Pentley Park Welwyn Garden City AL8 7SG

    Received 26 Feb 2024
  18. Decided - Granted6/2022/1945/LAWP

    Certificate of lawfulness for the change of use of garage to habitable room

    8 Ground Lane Hatfield AL10 0HH

    Received 19 Aug 2022
  19. Decided - Split6/2023/1834/COND

    Submission of details pursuant of condition 1 (accessible housing) and 2 (materials) on planning permission 6/2023/1014/VAR

    22 The Common Hatfield AL10 0ND

    Received 4 Sept 2023
  20. Decided - Granted6/2020/3167/HOUSE

    Erection of a single storey rear extension

    53 Calder Avenue Hatfield AL9 7AH

    Received 25 Nov 2020
  21. Decided - Granted6/2020/1362/HOUSE

    Erection of a single storey front extension

    35 Veritys Hatfield AL10 8HH

    Received 15 Jun 2020
  22. Decided - Granted6/2017/0323/LAWP

    Certificate of lawfulness for the installation of dormer window to facilitate loft conversion

    14 Longmead Woolmer Green Knebworth SG3 6JH

    Received 20 Feb 2017
  23. Decided6/2026/0396/TC

    Remove all ash to ground level. All Laburnums to reduce to around 3m above ground level.

    40 Barnfield Road Welwyn Garden City AL7 3TQ

    Received 4 Mar 2026
  24. Decided - Refused6/2023/1228/HOUSE

    Erection of outbuilding in rear garden

    174 Crawford Road Hatfield AL10 0PA

    Received 12 Jun 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 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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