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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
21,114Searchable applications
298Recorded as pending
86%Approval rate · 17,049 approved or refused records
2,410Refused applications

14,639 approved · 2,410 refused · 1,082 withdrawn. Received dates in our records: 5 Jan 2005 to 30 Sept 2026. Most recent record check: 13 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2023/0509/EMT

    Line of Leyland Cypress to cut to ground level. They cause a lot of shading in the rear garden and client wants to remove them to open up the garden

    42 Beehive Lane Welwyn Garden City AL7 4BP

    Received 7 Mar 2023
  2. Decided - Granted6/2021/1554/HOUSE

    Erection of a single storey rear and side extension following demolition of existing conservatory

    2 Endymion Court Hatfield AL10 8AU

    Received 17 May 2021
  3. Decided - Granted6/2017/2702/LAWP

    Certificate of lawfulness for the erection of single storey rear extension

    1 Oak Piece Welwyn AL6 0XE

    Received 21 Nov 2017
  4. Decided - Granted6/2023/1501/EMT

    Reduce beech tree by 2.5 metres to suitable growth points

    30 Templewood Welwyn Garden City AL8 7HX

    Received 18 Jul 2023
  5. Decided - Refused6/2019/2937/EM

    Erection of a single storey, part two storey side and rear extension and extension of raised decking area

    11 Vine Close Welwyn Garden City AL8 7PS

    Received 21 Nov 2019
  6. Decided - Granted6/2021/1321/EMT

    Fell dead tree

    128 The Commons Welwyn Garden City AL7 4SB

    Received 23 Apr 2021
  7. Decided - Granted6/2024/1954/TPO

    T1 – Beech: To fell tree as low as access allows -Tree in decline, half of crown has died, holes on main stem Covered by TPO 854 (2018)

    Newlands Old Hertford Road AL9 5EX

    Received 10 Oct 2024
  8. Decided - Granted6/2024/0155/COND

    Submission of details pursuant of condition 15 (windows and ventilation) on planning permission 6/2019/2431/MAJ

    Link Drive Car Park Link Drive Hatfield AL10 8TY

    Received 26 Jan 2024
  9. Decided - Granted6/2022/0688/EM

    Erection of storage shed in rear garden. Installation of small window on left side of garage and convert existing window to french doors.

    62 Parkway Welwyn Garden City AL8 6HH

    Received 23 Mar 2022
  10. Decided - Granted6/2021/2843/HOUSE

    Erection of a first floor extension

    Sawmill Cottage Waterend Lane Ayot St Peter Welwyn AL6 9BB

    Received 4 Oct 2021
  11. Decided - Granted6/2023/2215/HOUSE

    Erection of a single storey rear and side extension with part garage conversion and replacement garage door following the demolition of existing conservatory and single storey side extension

    31 Moffats Lane Brookmans Park Hertfordshire AL9 7RX

    Received 1 Nov 2023
  12. Decided - Refused6/2024/1807/HOUSE

    Erection of single storey side extension following the demolition of existing conservatory. Installation of rear dormer to facilitate loft conversion. Alterations to boundary, access, landscaping, render, and fenestration. Rearrangement of existing solar panels

    14B Northaw Road West Northaw Potters Bar EN6 4NR

    Received 19 Sept 2024
  13. Decided - Granted6/2017/2858/VAR

    Variation of condition 2 (materials samples) on planning permission 6/2015/2449/FULL.

    Guide Hut Guessens Road Welwyn Garden City AL8 6RE

    Received 7 Dec 2017
  14. Decided - Granted6/2018/1355/FULL

    Erection of a single storey extension to the north elevation of the main warehouse for loading equipment, improvements to access/footpaths, erection of new palisade fencing and alterations to existing forecourt.

    Magellan House Bessemer Road Welwyn Garden City AL7 1HJ

    Received 22 May 2018
  15. Decided - Granted6/2017/1632/EM

    Fell 5 trees T1: Ash, T2: Goat Willow, T3: Connifer T4 & T5: Maple

    13 Hall Grove Welwyn Garden City AL7 4PJ

    Received 25 Jul 2017
  16. Decided - Withdrawn6/2017/1691/FULL

    Installation of external attenuator to replacement generator and associated building works

    Unit 25A Fiddlebridge Lane, Hatfield, AL10 0SP

    Received 2 Aug 2017
  17. Decided - Granted6/2020/3006/HOUSE

    Erection of replacement outbuilding and garage.

    Ayot Cottage Hill Farm Lane Welwyn AL6 9BT

    Received 16 Nov 2020
  18. Decided - Granted6/2024/0531/HOUSE

    Erection of part single storey and part two storey front and rear extension

    1 Mardley Heights Welwyn AL6 0TX

    Received 19 Mar 2024
  19. Decided - Refused6/2022/2424/FULL

    External additions for operational purposes - external recycling area.

    A1 Connect Industrial Estate Cole Green Lane

    Received 19 Oct 2022
  20. Decided - Granted6/2022/1693/EMT

    2 x Sycamore to reduce by approximately 4m height & 3m width 1 x Copper Beech to reduce by 2.5m height & 1.5m width

    16 Elm Gardens, Welwyn Garden City, AL8 6RY

    Received 18 Jul 2022
  21. Decided - Granted6/2022/1446/HOUSE

    Erection of part single, part first floor side extension

    30 Bacons Drive Cuffley Potters Bar EN6 4DU

    Received 21 Jun 2022
  22. Decided - Granted6/2022/1159/HOUSE

    Erection of a two storey side extension

    79 Dellsome Lane Welham Green Hatfield AL9 7NE

    Received 19 May 2022
  23. Decided - Granted6/2019/1537/HOUSE

    Erection of single storey rear extension

    25 New Park Road Newgate Street Hertford SG13 8RD

    Received 24 Jun 2019
  24. Decided - Granted6/2022/1390/PN27

    Prior approval for the construction of an additional storey to facilitate the enlargement of the dwellinghouse to a maximum of approximately 8.5m in height

    37 Codicote Road Welwyn AL6 9TT

    Received 16 Jun 2022

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.

    UK research
    Published Updated

  • 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.

    UK research
    Published Updated

  • 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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