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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29,002 approved · 4,819 refused · 2,219 withdrawn.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: 9 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2018/3032/COND

    Submission of details pursuant to condition 7 (traffic noise) on planning permission 6/2016/0168/FULL

    Swan Lodge Bell Lane Brookmans Park Hatfield AL9 7AY

    Received 27 Nov 2018
  2. Decided - RefusedS6/2004/0691/FP

    DEMOLITION OF EXISTING DEPOT. ERECTION OF 2 ONE BEDROOM AND 16 TWO BEDROOM FLATS.

    61 LEMSFORD ROAD, HATFIELD, HERTFORDSHIRE, AL100DZ

    Received 10 May 2004
  3. Decided - Granted6/2023/1615/EM

    Retrospective consent to display an advertisement

    43 Peartree Lane Welwyn Garden City AL7 3UA

    Received 4 Aug 2023
  4. Decided - Granted6/2021/1507/HOUSE

    Erection of single storey side/front extension, single storey rear extension with insertion of roof light and replacement of some glazing with facing brickwork to front existing window.

    25 Windhill Welwyn Garden City AL7 1RH

    Received 12 May 2021
  5. Decided - RefusedW6/2013/2187/EM

    Replacement and extension to existing front hardsurfacing

    12 Handside Close, Welwyn Garden City, AL8 6SR

    Received 15 Oct 2013
  6. Decided - GrantedS6/2013/1639/FP

    Erection of two storey side extension

    2 Hillcrest, Hatfield, AL10 8HW

    Received 26 Jul 2013
  7. Decided - Granted6/2018/3147/TPO

    Reduce 1 x Oak tree (T2) crown by 5% covered by TPO 744 (2018)

    1 Rollswood Road Welwyn AL6 9TX

    Received 11 Dec 2018
  8. Decided - Granted6/2023/0461/HOUSE

    Erection of a front extension

    4 Great North Road Welwyn Garden City AL8 7TH

    Received 28 Feb 2023
  9. Decided - Granted6/2023/2021/EM

    Erection of a single storey rear extension, garage conversion and extended driveway

    25 Turmore Dale Welwyn Garden City AL8 6HT

    Received 2 Oct 2023
  10. Decided - GrantedN6/2014/0694/FP

    Retention of a free standing Automated Teller Machine and bollards

    Stadium Service Station Stanborough Road Welwyn Garden City AL8 6XA

    Received 1 Apr 2014
  11. Decided - Granted6/2017/2291/HOUSE

    Erection of single storey rear extension

    56 Eddington Crescent Welwyn Garden City AL7 4SQ

    Received 5 Oct 2017
  12. Decided - Granted6/2023/1634/FULL

    Retention of one of two Portakabin buildings installed following the planning approval ref: 6/2020/1740/FULL for a temporary period of three years

    Eisai Manufacturing European Knowledge Centre Mosquito Way Hatfield AL10 9SN

    Received 7 Aug 2023
  13. Under Consideration6/2026/1920/LAWP

    Certificate of lawfulness for a single storey rear extension, hip to gable loft conversion with rear dormer

    6 West View Hatfield AL10 0PJ

    Received 23 Oct 2026
  14. Appeal Decided - Dismissed6/2018/0857/FULL

    Construction of two additional self-contained flats at 2nd floor level at the rear of the building (part new build, part conversion)

    Stonehills House Stonehills Welwyn Garden City AL8 6DL

    Received 3 Apr 2018
  15. Decided - Refused6/2021/1172/LAWP

    Certificate of lawfulness for the demolition of historical rear two storey extension, and erection of a two storey rear extension projecting off the original rear wall with rooflights installed to the side and rear roof pitches.

    Colesdale Farmhouse Northaw Road West Northaw Potters Bar EN6 4QZ

    Received 12 Apr 2021
  16. Decided - Withdrawn6/2026/1025/TPO

    Reduce 1 x apple tree by 1m in height and width.

    Digswell Place South Lodge Rectory Road Welwyn Garden City AL8 7SU

    Received 10 Jun 2026
  17. Decided - GrantedW6/2013/0880/EM

    Erection of single storey rear, first floor side extensions and erection of garden room

    36 Longcroft Lane, Welwyn Garden City, AL8 6EF

    Received 23 Apr 2013
  18. Decided6/2023/2046/TC

    Fell T1, poor condition holly tree, to allow for fence repair.

    45 Valley Road Welwyn Garden City AL8 7DH

    Received 5 Oct 2023
  19. Decided - GrantedS6/2007/1935/FP

    CONVERSION OF EXISTING HOUSE INTO TWO DWELLINGS; AND ERECTION OF TWO STOREY SIDE EXTENSION TO FORM NEW TERRACED DWELLING

    108 COLLEGE LANE, HATFIELD, HERTFORDSHIRE, AL10 9PA

    Received 17 Dec 2007
  20. Decided - Refused6/2017/0097/LAWE

    Certificate of lawfulness for the retention of garden decking

    45 Westland Drive, Brookmans Park, Hatfield, AL9 7UG

    Received 19 Jan 2017
  21. Decided - Granted6/2023/2526/EMT

    T1 - Ash tree with ash dieback. Fell to ground level for safety reasons and as tree has already shed branches onto neighbouring driveway

    40 Beehive Lane Welwyn Garden City AL7 4BP

    Received 20 Dec 2023
  22. Decided - GrantedN6/2007/0671/FP

    ERECTION OF REAR CONSERVATORY.

    11 Bennett Close Welwyn Garden City AL7 4JA

    Received 1 May 2007
  23. Decided - Withdrawn6/2025/1214/FULL

    Change of use from a C3 dwelling to a C2 children’s home with garage conversion into habitable accommodation, installation of electric vehicle charging point, bin storage and cycle storage, alteration to openings and hard and soft landscaping works

    80 Digswell Park Road Welwyn Garden City AL8 7NS

    Received 17 Jun 2025
  24. Decided - Granted6/2026/0361/HOUSE

    Part garage conversion with raising of roof and insertion of roof light

    7 Breakmead Welwyn Garden City AL7 3HG

    Received 26 Feb 2026

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

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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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    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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