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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
17,326Searchable applications
298Recorded as pending
86%Approval rate · 13,959 approved or refused records
1,917Refused applications

12,042 approved · 1,917 refused · 877 withdrawn. Received dates in our records: 5 Jan 2005 to 30 Sept 2026. Most recent record check: 10 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 Counts reflect the last collected status; some records may be out of date.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.

Explore application records

  1. Decided6/2023/2078/TC

    Removal of silver birch tree

    6 Ashley Close Welwyn Garden City AL8 7LH

    Received 11 Oct 2023
  2. Decided - Refused6/2023/1149/EM

    Removal of existing hipped roof and new gable ended roof built, including raising of roof height and chimney. Two rear dormers and one side conservation roof light

    48 Attimore Road Welwyn Garden City AL8 6LP

    Received 31 May 2023
  3. Decided - Granted6/2022/2097/HOUSE

    Erection of front extension and new window to existing side elevation

    6 Canonsfield Welwyn AL6 0QD

    Received 8 Sept 2022
  4. Decided - Granted6/2020/0988/EMT

    Reduce 1 x Cherry Plum Tree by 30%

    46 Blakemere Road Welwyn Garden City AL8 7PJ

    Received 1 May 2020
  5. Decided - Granted6/2019/1496/EM

    Erection of front porch following demolition of existing porch, first floor rear extension to change existing dormer into a gable end and alterations to fenestration on existing side, front and rear elevations.

    5 Old Forge Close Welwyn AL6 0SR

    Received 14 Jun 2019
  6. Decided6/2023/1180/TC

    G1 - Cherry x 2 - Located to side/rear of No 26 - encroaching onto property and low over public footpath - would like to reduce lateral branches by up to 2.5m to clear property and crown lift to 2-2.5m over footpath T1 - Maple - Located to rear of No 38/40 - low over gardens with over extended branches - would like to crown reduce removing up to 2.5m and crown lift to approx 2-2.5m

    26 Rooks Hill Welwyn Garden City AL8 6ET

    Received 5 Jun 2023
  7. Decided - Granted6/2023/0067/LAWP

    Certificate of lawfulness for proposed hip to gable end loft conversion with rear facing flat roof dormer, juliette balcony and new rooflight to front roof elevation

    121 Stonecross Road Hatfield AL10 0HS

    Received 11 Jan 2023
  8. Decided - Granted6/2019/2013/EM

    Erection of a single storey rear extension and alterations to fenestration on front elevation.

    4 Marsden Close Welwyn Garden City AL8 6YE

    Received 12 Aug 2019
  9. Decided - Refused6/2023/2065/LAWP

    Certificate of lawfulness for the erection of an outbuilding

    45 Pine Grove Brookmans Park Hatfield AL9 7BL

    Received 10 Oct 2023
  10. Decided - Refused6/2021/1303/HOUSE

    Erection of a two storey side extension following the demolition of the existing car port

    34 Appletree Way Welwyn Garden City AL7 2FE

    Received 22 Apr 2021
  11. Decided - Withdrawn6/2020/2952/HOUSE

    Erection of first floor side extension including installation of velux rooflights and juliet balcony to the rear

    37 Sherrardspark Road Welwyn Garden City AL8 7JY

    Received 11 Nov 2020
  12. Decided - Refused6/2025/2354/COND

    Submission of details pursuant to condition number 26 (Asbestos) on planning permission 6/2021/3367/MAJ

    Ludwick Green Ludwick Way Welwyn Garden City AL7 3QN

    Received 7 Nov 2025
  13. Decided - Granted6/2023/1705/HOUSE

    Erection of part first floor side extension, side extension and erection of two storey side/rear extension following the demolition of existing extension.

    The Forge Hill Farm Lane Ayot St Lawrence AL6 9BW

    Received 14 Aug 2023
  14. Decided6/2025/0481/TC

    T1, T2, T3, T5, T6, T8 & T9 - Ash to reduce back to existing pruning points (approx 2.5m). T4 - Sycamore to reduce back to existing pruning points (approx 2.5m). T7 - Field maple to reduce back to existing pruning points (approx 2.5m).

    15 The Old Drive Welwyn Garden City AL8 6TB

    Received 14 Mar 2025
  15. Decided - Granted6/2020/1064/PN14

    Prior approval for demolition of High View buildings and garages

    High View Neighbourhood Centre High View Hatfield AL10 8HZ

    Received 13 May 2020
  16. Decided - Refused6/2023/1621/LB

    Installation of partition in flat and waterproofing to basement (retrospective)

    Flat 1 1-5 Park Street Hatfield AL9 5AT

    Received 4 Aug 2023
  17. Decided - Granted6/2025/0214/HOUSE

    Conversion of existing ground floor garage into office and gym, erection of carport with adjacent storage shed

    32 Turpins Chase Welwyn AL6 0RR

    Received 7 Feb 2025
  18. Decided6/2025/0129/TC

    Beech tree located in the rear garden of the property, reduce the canopy by 25% and 4m lift of the canopy

    22 Turmore Dale Welwyn Garden City AL8 6HS

    Received 27 Jan 2025
  19. Decided - Withdrawn6/2021/0563/HOUSE

    Erection of a replacement two-bedroom residential annex, erection of a replacement brick wall and alterations to existing hardstanding and grass verge following demolition of existing one-bedroom residential annex, stables building and boundary fence and removal of shipping containers and builders yard equipment and materials

    Garden Cottage Danesbury Park Road Welwyn AL6 9SE

    Received 22 Feb 2021
  20. Under Consideration6/2025/0766/COND

    Submission of details pursuant to condition number 2 ( Details of roads, footways, cycleways, foul and surface water drainage, visibility splays, access arrangements, parking provision in accordance with adopted standard, loading areas and turning areas) on planning permission 6/2021/3436/RM

    Land North East of Welwyn Garden City Panshanger Welwyn Garden City AL7 2QJ

    Received 23 Apr 2025
  21. Decided - Refused6/2022/0540/HOUSE

    Erection of a part two storey front extension and single storey side extension.

    42 Parsonage Lane Welham Green Hatfield AL9 7LU

    Received 8 Mar 2022
  22. Decided - Refused6/2024/0721/PN10

    Prior approval for a change of use from agricultural building to one dwellinghouse

    Chestnut Farm Woodfield Lane Hatfield AL9 6JJ

    Received 18 Apr 2024
  23. Decided - Refused6/2020/2316/HOUSE

    Erection of ground floor front extension.

    4 Windsor Close Welwyn AL6 9JZ

    Received 10 Sept 2020
  24. Decided - Refused6/2024/1618/FULL

    Erection of 5 new dwellings following the demolition of existing dwelling and outbuildings

    Home Farm 15 New Park Road Newgate Street Hertford SG13 8RD

    Received 23 Aug 2024

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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