PlanningTrack
Get started

England · Local authority

Welwyn Hatfield planning applications

PlanningTrack collects planning applications and decisions from the public planning register of Welwyn Hatfield Borough Council. Search an address, application reference or proposal. Official Welwyn Hatfield website

Collected application statistics

Collected records · All available dates
40,297Searchable applications
283Recorded as pending
86%Approval rate · 33,821 approved or refused records
4,819Refused applications

29,002 approved · 4,819 refused · 2,219 withdrawn. Received dates in our records: 29 Apr 1948 to 29 Oct 2026. Most recent record check: 10 Nov 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2020/0746/COND

    Submission of details pursuant to condition 1 (Materials samples), 3 (Arboricultural Method Statement), 5 (Noise Assessment), 6 (Noise from plant and equipment), 7 (Contamination), 8 (Archaeological Written Scheme of Investigation) and 10 (Environmental Management Plan) on planning permission 6/2018/0717/MAJ, dated 14/02/2018

    Mill Green Mill Green Lane Hatfield AL9 5NQ

    Received 17 Mar 2020
  2. Appeal Decided - DismissedW6/2008/1980/EM

    RETENTION OF HARDSTANDING

    8 THE OLD DRIVE, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 6TB

    Received 15 Oct 2008
  3. Decided - WithdrawnN6/2009/0188/FP

    ERECTION OF SINGLE STOREY FRONT EXTENSION

    14 Roman Way Welwyn AL6 9RJ

    Received 27 Jan 2009
  4. Decided - Granted6/2024/0786/HOUSE

    Erection of front porch and single storey rear extension following the demolition of the existing conservatory, increase garage roof height to facilitate partial conversion to habitable space, installation of side facing dormer, fenestration alterations

    22 Stag Green Avenue Hatfield AL9 5DZ

    Received 26 Apr 2024
  5. Decided - Granted6/2016/1008/ADV

    Application for a mixture of the installation, retention and moving of 4no non-illuminate free standing signs, 1no non-illuminated wall mounted sign, 3no non-illuminated lamp post signs, 4no illuminated free standing signs and 1no estate sign

    KFC, Comet Way, Hatfield, AL10 9TF

    Received 23 May 2016
  6. Decided - Granted6/2025/0979/HOUSE

    Erection of a two-storey front/side extension, single storey rear extension, installation of dormers to facilitate the conversion of the loft to habitable space

    11 Georges Wood Road Brookmans Park AL9 7BY

    Received 27 May 2025
  7. Decided - Granted6/2018/0455/HOUSE

    Erection of single storey rear conservatory

    22 Twelve Acres Welwyn Garden City AL7 4TG

    Received 14 Feb 2018
  8. Decided - Granted6/2016/1697/PN8

    Prior approval for erection of single storey rear extension measuring 4m length, 3.5m high and 2.5m eaves height

    61 Stonecross Road, Hatfield, AL10 0HP

    Received 19 Aug 2016
  9. Decided - GrantedS6/2004/0740/FP

    ALTERATION TO FORM FULLY PITCHED ROOF (AMENDED PLANS TO P.P S6/04/046/FP)

    35 Station Road Welham Green Hatfield AL9 7PF

    Received 19 May 2004
  10. Decided - Granted6/2016/1734/FULL

    Change of use from (Sui-Generis) Taxi Business to (B1) Office

    82 Great North Road Hatfield AL9 5BL

    Received 24 Aug 2016
  11. Decided6/2022/1698/TC

    T1 - 1 x Larch to dismantle in sections to ground level - Tree is in close proximity to corner of house. Large lateral roots on surface causing trip hazards T2 - 1 x Cherry to fell to ground level - Tree is showing poor form with canker present T3 - 1 x Ash to fell to ground level - Small Ash stem to remove amongst group of large Ash. Will improve light G1 - Group of Ash to reduce lateral branches over lawn area by 2.5m - Long overextended limbs are causing lots of shading. T4 - 1 x Pine to dismantle in sections to ground level - Tree is totally suppressed on one side leading to poor form. T5 - 1 x Leyland Cypress to fell to ground level - Young tree starting to develop but needs to be removed before it becomes nuisance.

    37 High Oaks Road Welwyn Garden City AL8 7BT

    Received 18 Jul 2022
  12. Decided - Granted6/2017/2724/LAWP

    Certificate of lawfulness for the installation of rear dormer with 7 windows to facilitate roof conversion

    20 The Grove Brookmans Park Hatfield AL9 7RN

    Received 23 Nov 2017
  13. Decided - WithdrawnS6/2014/1427/LUP

    Certificate of Lawfulness for proposed loft conversion including rear dormers

    36 Mymms Drive, Brookmans Park, Hatfield, AL9 7AF

    Received 25 Jun 2014
  14. Decided - Refused6/2025/0712/HOUSE

    Erection of part two storey, part single storey side and rear extension, alterations to the roof to include hip to gable roof extension, formation of rear dormer and erection of detached outbuilding, following the removal of the remaining face of a garage and demolition of a shed

    174 Crawford Road Hatfield AL10 0PA

    Received 14 Apr 2025
  15. Decided - Granted6/2020/2897/HOUSE

    Erection of a single storey side extension

    7 Waterbeach Welwyn Garden City AL7 2PT

    Received 5 Nov 2020
  16. Decided - Granted6/2026/0451/ADV

    Installation of 1 x illuminated fascia sign, 1 x illuminated projecting sign, menu box illuminated sign and festoon lighting.

    The Howard Centre Unit 32 Howardsgate Welwyn Garden City AL8 6HA

    Received 12 Mar 2026
  17. Decided - GrantedN6/2007/0781/FP

    ERECTION OF 2 STOREY SIDE AND SINGLE STOREY REAR EXTENSION

    11 Holly Road Woolmer Green Knebworth SG3 6LL

    Received 22 May 2007
  18. Decided - Granted6/2021/2164/TPO

    Sweet Chestnut - remove

    4 Copper Beeches Welwyn AL6 0SS

    Received 16 Jul 2021
  19. Decided - Refused6/2021/2662/HOUSE

    Erection of a single storey rear extension

    3A Hall Grove Welwyn Garden City AL7 4PJ

    Received 14 Sept 2021
  20. Decided - Refused6/2019/0131/EM

    Erection of single storey rear extension following demolition of exiting rear/side extension

    6 Hyde Valley Welwyn Garden City AL7 4NA

    Received 23 Jan 2019
  21. Decided - Refused6/2017/0124/HOUSE

    Installation of 3no rooflights to front elevation. Installation of triple rooflight and juliette style railings to rear elevation.

    14 Chambers Grove Welwyn Garden City AL7 4FQ

    Received 24 Jan 2017
  22. Decided - WithdrawnS6/2007/1138/FP

    ERECTION OF A TWO STOREY SIDE EXTENSION

    2 Robin Way Cuffley Potters Bar EN6 4QB

    Received 30 Jul 2007
  23. Decided - Granted6/2021/1849/EMH

    Erection of a single storey rear extension

    16 Picketts Welwyn Garden City AL8 7HJ

    Received 15 Jun 2021
  24. Decided - Granted6/2020/0651/LAWP

    Certificate of lawfulness for the erection of a single storey rear extension

    6 Beechfield Road Welwyn Garden City AL7 3RF

    Received 9 Mar 2020

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

View all applications

Applications by postcode area

Get emailed about new planning applications in Welwyn Hatfield

Area alerts send a daily or weekly email with new applications and decisions near a postcode, filtered by project type. £29 a month, up to 3 areas. Records are limited to the councils we collect.

Set up an area alert

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.

    UK research
    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.

Check collection coverage

More planning authorities in England

Browse all authorities