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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
17,949Searchable applications
298Recorded as pending
86%Approval rate · 14,464 approved or refused records
2,002Refused applications

12,462 approved · 2,002 refused · 910 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2020/1204/PN8

    Prior approval for the erection of a single storey rear extension measuring 6.00m in depth 3.00m in height and 2.80m to the eaves

    4 Little Ley Welwyn Garden City AL7 4TN

    Received 29 May 2020
  2. Decided - Granted6/2020/0394/EM

    Erection of a single, part two storey rear extension, alterations to openings, formation of hardstanding and dropped kerb

    3 The Valley Green Welwyn Garden City AL8 7DQ

    Received 12 Feb 2020
  3. Decided - Refused6/2019/1676/EM

    Fell 1 x Lawson Cypress

    87 Oakdale Welwyn Garden City AL8 7QP

    Received 8 Jul 2019
  4. Decided - Withdrawn6/2023/2037/LAWP

    Certificate of lawfulness for erection of boundary wall to front of property

    83 Oakleigh Stables At Codicote Road Welwyn AL6 9TY

    Received 4 Oct 2023
  5. Under Consultation6/2026/1516/FULL

    Erection of a part single, part two storey rear extension, part first floor, part two storey side extension, single storey front extension and alterations to openings to facilitate the subdivision of the existing dwelling to create 1 No. three-bedroom dwelling and 1 No. two-bedroom dwelling

    80 Travellers Lane Hatfield AL10 8SF

    Received 27 Aug 2026
  6. Decided - Granted6/2022/0949/HOUSE

    Alterations to fenestration, part conversion of front hipped roof to gable roof, erection of rear roof extension with conversion of rear hipped roof to gable and insertion of two side dormers, erection of single storey rear extension with roof terrace over rear ground floor flat roof, and raised rear patio

    21 Kingswell Ride Cuffley Potters Bar Hertfordshire EN6 4LH

    Received 21 Apr 2022
  7. Decided - Granted6/2023/0275/HOUSE

    Conversion of loft with velux roof lights to side and rear elevations and new window in front gable

    1 Chatt Court Welwyn Hertfordshire AL6 9FX

    Received 6 Feb 2023
  8. Decided - Granted6/2022/1435/EMT

    1 x Weeping willow to reduce in size to leave a basic framework for the tree to grow on from. This would leave a height of approximately 6m above ground level and radar spread of 3m.

    6 High Oaks Road Welwyn Garden City AL8 7BH

    Received 21 Jun 2022
  9. Decided - Refused6/2022/1209/LAWP

    Proposed loft conversion with rear dormer and front rooflights

    8 Homerfield Welwyn Garden City Hertfordshire AL8 6QZ

    Received 25 May 2022
  10. Decided - Granted6/2019/1869/TPO

    Reduce 1x London Plane Tree by 30% (TPO 220)

    Rivers Edge 2 Fulling Mill Lane Welwyn AL6 9NH

    Received 31 Jul 2019
  11. Decided - Granted6/2021/0959/HOUSE

    Erection of rear extension.

    189 Parkway Welwyn Garden City AL8 6JA

    Received 24 Mar 2021
  12. Decided6/2020/0704/TC

    Reduce 1 x Oak [T1] by 30% Reduce 1 x Yew Tree [T2] by 30%

    12 Digswell Lodge Digswell Rise Welwyn Garden City AL8 7NU

    Received 12 Mar 2020
  13. Decided - Granted6/2021/1584/HOUSE

    Erection of a single storey rear extension, following the demolition of existing conservatory.

    151 Howlands Welwyn Garden City AL7 4RL

    Received 18 May 2021
  14. Decided - Withdrawn6/2021/0990/EMH

    Replacement of damaged shed roof with new tar pitch roof

    10 Little Dell Welwyn Garden City AL8 7HZ

    Received 25 Mar 2021
  15. Decided - Granted6/2021/3029/EM

    Erection of a single storey side/rear extension to include insertion of 4 x roof lights involving demolition of existing garage, and alterations to fenestrations

    20 Beehive Green Welwyn Garden City AL7 4BG

    Received 21 Oct 2021
  16. Decided - Granted6/2019/2478/MAJ

    Erection of a 4 x storey car park comprising of 420 x parking spaces, motorcycle and cycle parking, storage and ancillary space and associated landscaping and public realm works to Robin Hood Lane

    22 The Common Hatfield AL10 0ND

    Received 3 Oct 2019
  17. Decided - Refused6/2020/0883/LB

    Installation of window to facilitate conversion of garage, replacement of utility door with window, demolition of interior bathroom walls to create open plan room, removal of suspended ceiling, installation of shower room in front bedroom and installation of roof light

    33 School Lane Welwyn AL6 9PQ

    Received 16 Apr 2020
  18. Decided - Granted6/2022/1876/EM

    Proposed loft conversion with rear dormer and two front rooflights

    8 Homerfield Welwyn Garden City AL8 6QZ

    Received 11 Aug 2022
  19. Decided - Withdrawn6/2019/1455/LB

    Erection of garden shed

    31 Ayot Green Ayot St Peter Welwyn AL6 9AB

    Received 17 Jun 2019
  20. Decided - Granted6/2021/3384/COND

    Submission of details pursuant to condition 1 (hard and soft landscaping works) and condition 2 (landscaping carried out in first planting and seeding seasons, and removal of any dead, damaged or diseased plants within 5 years of completion of development) on planning application 6/2021/1508/HOUSE

    Just House Coopers Lane Northaw Potters Bar EN6 4NJ

    Received 1 Dec 2021
  21. Decided - Granted6/2020/0514/EM

    Erection of single storey side extension to replace existing outbuilding

    9 Handside Close Welwyn Garden City AL8 6SR

    Received 24 Feb 2020
  22. Decided - Granted6/2025/0722/HOUSE

    Erection of a rear dormer window and installation of front rooflights to facilitate conversion of loft to habitable space, garage conversion to storage room and erection of a single story rear extension following demolition of existing rear conservatory

    3 Leysdown Welwyn Garden City AL7 2PY

    Received 16 Apr 2025
  23. Decided - Granted6/2023/0759/VAR

    Removal of condition 27 (car club) and variation of approved drawings on planning permission 6/2022/0059/VAR to include: -Addition of four new car parking spaces -Changes to EV charging point locations -Changes to kerbs and splays on High View -Changes to Church Square -Changes to the cycle storage outside the block CH houses -Changes to the rear garden layout for the block CH houses

    Land at High View Hatfield Hertfordshire AL10 8HZ

    Received 5 Apr 2023
  24. Decided - Granted6/2020/2680/EMT

    Fell Mixed front hedge, including Arizona Cypress and replace

    77 Rosedale Welwyn Garden City AL7 1DP

    Received 14 Oct 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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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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