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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
23,702Searchable applications
313Recorded as pending
86%Approval rate · 19,380 approved or refused records
2,703Refused applications

16,677 approved · 2,703 refused · 1,225 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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. Decided6/2021/2288/TC

    Apple tree (T1) - Fell

    9 Walden Place Welwyn Garden City AL8 7PG

    Received 30 Jul 2021
  2. Decided - Granted6/2021/1874/HOUSE

    Erection of single storey rear extension and alterations to fenestration including the installation of a juliet balcony and amendments to an existing side elevation, revised porch layout.

    5 Great North Road, Brookmans Park, Hatfield, AL9 6LB

    Received 18 Jun 2021
  3. Decided - Granted6/2016/1717/EM

    Replacement of front door and windows at front and side of property

    5 Brockswood Lane, Welwyn Garden City, AL8 7BA

    Received 23 Aug 2016
  4. Decided - Granted6/2020/1250/HOUSE

    Erection of rear single storey extension

    64 Attimore Road Welwyn Garden City AL8 6LP

    Received 4 Jun 2020
  5. Decided - Granted6/2023/0197/EM

    Erection of single storey rear extension

    12 Templewood Welwyn Garden City AL8 7HX

    Received 26 Jan 2023
  6. Decided - Granted6/2017/1760/HOUSE

    Erection of single storey front extension including relocation of front door

    50 Knolles Crescent Welham Green Hatfield AL9 7EA

    Received 9 Aug 2017
  7. Decided - Granted6/2019/3253/COND

    Submission of details pursuant to condition 3 (archaeological investigation) on planning permission 6/2018/2190/HOUSE

    The Old Vicarage North Mymms Park Tollgate Road North Mymms Hatfield AL9 7TN

    Received 30 Dec 2019
  8. Decided6/2024/0031/TC

    1 x Ash - remove to ground level. The tree overhangs the neighbour's garden and has contracted ash die back and is now declining

    2 Pitsfield Welwyn Garden City AL8 7SJ

    Received 4 Jan 2024
  9. Decided - Granted6/2026/0435/FULL

    Erection of dwelling following the demolition of existing dwelling

    57 Tolmers Road Cuffley Potters Bar EN6 4JG

    Received 10 Mar 2026
  10. Appeal Decided - Allowed6/2020/0304/HOUSE

    Alterations to the front and rear elevations to include new windows within the front roof slope and rear dormer and raising the roof height

    20 Gresley Close Welwyn Garden City AL8 7QB

    Received 3 Feb 2020
  11. Decided - Granted6/2023/1099/PN15

    Proposed telecommunications installation: Proposed 15.0m Phase 8 Monopole and associated ancillary works

    Hatfield Avenue Hatfield Business Park Hatfield AL10 9FY

    Received 24 May 2023
  12. Decided - Granted6/2018/3021/EM

    Fell 1x Prunus and reduce 8x Prunus trees by 2-3 meters

    Trevelyan House Church Road Welwyn Garden City AL8 6NT

    Received 23 Nov 2018
  13. Decided - Granted6/2019/2554/COND

    Submission of details pursuant to condition 2 (noise limiting system scheme) on planning permission 6/2018/3204/FULL

    The Bothies and Walled Garden, North Mymms Park, North Mymms, AL9 7TR

    Received 9 Oct 2019
  14. Decided - Withdrawn6/2024/0121/LAWP

    Certificate of lawfulness for proposed enlargement of a dwellinghouse by the construction of a side and rear extension

    Woodlands Well Road Northaw Potters Bar EN6 4BN

    Received 22 Jan 2024
  15. Decided - Granted6/2017/0109/EM

    Removal of apple and pear trees from rear garden

    120 Haldens Welwyn Garden City AL7 1DG

    Received 23 Jan 2017
  16. Decided - Refused6/2025/1902/HOUSE

    Erection of two storey front extension

    Windy Ridge 40 Great North Road Welwyn AL6 0PX

    Received 4 Sept 2025
  17. Decided - Granted6/2024/1701/COND

    Submission of details pursuant of conditions 13 (management and maintenance plan for the SuDS features and drainage network) on planning permission 6/2022/2249/VAR

    Hertfordshire Constabulary Stanborough Road Welwyn Garden City AL8 6XF

    Received 4 Sept 2024
  18. Decided - Granted6/2021/1604/EMT

    Leylandii hedge consisting of 10-12 bushes/shrubs - remove. Replace with combination hedge of Laurel, Beech and Photinia. Christmas tree spruce - remove

    19 Crossway Welwyn Garden City AL8 7ED

    Received 19 May 2021
  19. Decided - Granted6/2026/0999/HOUSE

    Erection of two storey front extension

    51 Birchall Wood Welwyn Garden City AL7 2HL

    Received 8 Jun 2026
  20. Decided - Granted6/2021/0947/EMH

    Removal of boundary hedgerow and front lawn and erection of a single vehicle hardstand and crossover.

    153 Handside Lane Welwyn Garden City AL8 6TA

    Received 23 Mar 2021
  21. Decided - Granted6/2018/1118/COND

    Submission of details pursuant to condition 6 (Details of the bin store) and 7 (Details of the cycle stores) on planning permission 6/2016/2624/FULL ,dated 14/09/2017

    Mercury House 1 Broadwater Road Welwyn Garden City AL7 3BQ

    Received 30 Apr 2018
  22. Decided - Granted6/2021/2580/TPO

    T2. Scots Pine - fell (TPO 539) G1. Mature Beech - fell or reduce to monolith G2. Mature Beech - fell or reduce to monolith G3. Mixed Species tree line - removal of major deadwood and hung material within crowns overhanging highway/footpath; lift low crowns to min height of 5m; reduce crowns back to woodland boundary

    4 Speyhawk Place Little Heath Potters Bar EN6 1LE

    Received 6 Sept 2021
  23. Decided - Granted6/2018/2734/TPO

    Reduce 2x Oak Trees and 1x Sweet Chestnut Tree by approximately 30% - Covered by TPO 640 (2017)

    2A The Drive Welwyn AL6 0TR

    Received 23 Oct 2018
  24. Decided - Refused6/2023/0839/FULL

    Erection of two new dwellings together with two separate car garages following the demolition of existing bungalow

    Tylersley Farm Tylers Causeway Newgate Street Hertford SG13 8QN

    Received 19 Apr 2023

Records are ordered by application ID, not submission date. Use search to find a particular address or proposal.

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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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    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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