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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
23,176Searchable applications
313Recorded as pending
86%Approval rate · 18,897 approved or refused records
2,648Refused applications

16,249 approved · 2,648 refused · 1,198 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2018/1320/COND

    Submission of details pursuant to condition 2 (elevations of windows and sectional drawings) on listed building consent 6/2016/1749/LB

    5 Mill Green Cottages Mill Green Bush Hall Lane Hatfield AL9 5PB

    Received 18 May 2018
  2. Decided - Granted6/2023/0220/HOUSE

    Erection of single storey side and rear extension and 1st floor rear extension, following demolition of existing rear extension and outbuildings, including garage.

    42 Fordwich Road Welwyn Garden City AL8 6EY

    Received 30 Jan 2023
  3. Decided - Refused6/2018/2691/COND

    Submission of details pursuant to condition 2 (enclosure & boundary treatments) on planning permission 6/2018/0185/FULL

    Accord House 28 Bridge Road East Welwyn Garden City AL7 1HX

    Received 22 Oct 2018
  4. Decided - Granted6/2018/2978/LAWP

    Certificate of lawfulness for alterations to openings to facilitate conversion of garage to habitable space

    7 Briars Lane Hatfield AL10 8EP

    Received 19 Nov 2018
  5. Decided - Granted6/2020/0637/EMT

    Fell 1 x Holly Tree Fell 1 x Fir Tree Reduce 1 x Hornbeam tree by 50%

    45 Pentley Park Welwyn Garden City AL8 7SF

    Received 5 Mar 2020
  6. Decided - Granted6/2019/1699/FULL

    Erection of 8 flats, formation of car parking and amenity space following demolition of existing dwellinghouse

    1 Roe Green Close Hatfield AL10 9PD

    Received 10 Jul 2019
  7. Decided - Refused6/2019/2536/HOUSE

    Erection of car port

    21 Kentish Lane, Brookmans Park, Hatfield, AL9 6NG

    Received 9 Oct 2019
  8. Decided - Refused6/2024/0645/LB

    Installation of w.c. into existing cupboard

    28 Church Street Welwyn AL6 9LX

    Received 4 Apr 2024
  9. Decided - Granted6/2020/0372/COND

    Submission of details pursuant to condition 1 (refuse and recycling bins) 2 (cycle parking) and 4 (soft landscaping) on planning permission 6/2019/2901/FULL

    108 Aldykes Hatfield AL10 8EE

    Received 7 Feb 2020
  10. Decided - Granted6/2019/2073/COND

    Submission of details pursuant to condition 5 (photovoltaic panels) on planning reference 6/2018/2150/MAJ

    University Of Hertfordshire Mosquito Way Hatfield AL10 9AB

    Received 20 Aug 2019
  11. Decided - Granted6/2018/0820/EM

    Fell 2 x Lawson Cypress trees

    70 Attimore Road Welwyn Garden City AL8 6LP

    Received 28 Mar 2018
  12. Decided - Granted6/2021/0598/LAWE

    Certificate of lawfulness for the continued lawful use of the property as a small HMO (use class C4)

    38 Haseldine Meadows Hatfield AL10 8HB

    Received 24 Feb 2021
  13. Decided - Granted6/2023/2250/EM

    Erection of pergola and greenhouse/shed in rear garden

    10 Mannicotts Welwyn Garden City AL8 7BW

    Received 6 Nov 2023
  14. Decided - Refused6/2017/2101/EM

    Erection of part two storey and single storey rear extension

    11 Longcroft Lane Welwyn Garden City AL8 6EB

    Received 18 Sept 2017
  15. Decided - Granted6/2019/1616/FULL

    Erection of 6x Dwellings

    Land behind 140 Ludwick Way Welwyn Garden City AL7 3PY

    Received 2 Jul 2019
  16. Decided - Withdrawn6/2021/2322/HOUSE

    Erection of two single storey rear extensions and alterations to the roof of an existing extension

    27 Attimore Road Welwyn Garden City AL8 6LQ

    Received 5 Aug 2021
  17. Under Consultation6/2026/1626/HOUSE

    Raising of flat roof to accommodate insulation for part garage conversion, replacement fenestration and insertion of rooflight

    11 Woodland Rise Welwyn Garden City AL8 7LJ

    Received 15 Sept 2026
  18. Appeal Decided - Dismissed6/2020/3134/LB

    Erection of single storey extension to link with converted garage

    Green Lodge Ponsbourne Park Newgate Street Hertford SG13 8NH

    Received 24 Nov 2020
  19. Decided - Granted6/2020/2528/HOUSE

    Removal of existing rear door, replaced by uPVC window, brickwork to match existing.

    69 Digswell Rise Welwyn Garden City AL8 7PT

    Received 1 Oct 2020
  20. Decided - Refused6/2019/2619/COND

    Submission of details pursuant to condition 1 (archaeological building record) on planning permission 6/2019/1413/FULL

    4 London Road Welwyn AL6 9EL

    Received 18 Oct 2019
  21. Appeal Decided - Dismissed6/2018/2676/FULL

    Erection of a 4-bedroom bungalow following the demolition of existing nursery/commercial buildings and removal of associated hardstanding/yard area

    The Old Bell Bar Nursery, Bulls Lane, Hatfield, AL9 7BB

    Received 18 Oct 2018
  22. Decided - Granted6/2024/0138/EMT

    Fell 1 x Sycamore tree.

    2 Fern Grove Welwyn Garden City AL8 7ND

    Received 24 Jan 2024
  23. Decided - Granted6/2019/1188/TPO

    Fell 1x Conifer tree T1 Reduce 1x Conifer tree T2 by 30% Reduce 1x Deciduous tree T3 by 30% Covered by TP0 76 G3

    22 Parkside Welwyn AL6 9DQ

    Received 8 May 2019
  24. Decided - Granted6/2020/0463/TPO

    Reduce 2 x Silver Birch back to previous pruning points subject to TPO105 T5 and TPO105 T4

    5 Evergreen Close Knebworth SG3 6JN

    Received 17 Feb 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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