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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
303Recorded as pending
86%Approval rate · 33,806 approved or refused records
4,819Refused applications

28,987 approved · 4,819 refused · 2,218 withdrawn. Received dates in our records: 29 Apr 1948 to 29 Oct 2026. Most recent record check: 8 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 Counts reflect the last collected status; some records may be out of date.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 - GrantedS6/2008/1323/DS

    DISCHARGE OF CONDITIONS 3 (MATERIALS) & 4 (DEMOLITION WORKS) OF PLANNING PERMISSION S6/2008/0537/FP

    Tudor Hall, Vineyards Road, Potters Bar, EN6 4PE

    Received 8 Aug 2008
  2. Decided - Granted6/2021/2440/EMT

    Fell 2 x Silver Birch trees, reduce 1 x Leyland Cyprus tree to 10ft, and remove 1 x Lawson Cypress hedge

    317 Knightsfield Welwyn Garden City AL8 7NJ

    Received 20 Aug 2021
  3. Decided - RefusedS6/2006/0318/FP

    FIRST FLOOR SIDE EXTENSION, GROUND AND FIRST FLOOR FRONT EXTENSION AND REAR CONSERVATORY

    29 Calder Avenue Brookmans Park Hatfield AL9 7AH

    Received 14 Mar 2006
  4. Decided - Granted6/2019/2839/LB

    Removal of chimney and installation of an access rooflight

    Abdale House Warrengate Road North Mymms Hatfield AL9 7TX

    Received 11 Nov 2019
  5. Decided - Granted6/2021/3341/HOUSE

    Partial conversion of existing attached garage to habitable use and partial removal of existing hedge to facilitate an extension to driveway

    31 Great Braitch Lane Hatfield AL10 9FD

    Received 26 Nov 2021
  6. Decided6/2025/2283/TC

    1 x Magnolia to reduce by approximately 1-1.5m in height and width. Remove deadwood. Thin canopy by removing water shoots

    39 Lemsford Village Lemsford Welwyn Garden City AL8 7TR

    Received 27 Oct 2025
  7. Decided - Granted6/2023/2314/HOUSE

    Erection of single storey rear extension with pitched tiled roof and roof lights, following demolition of existing conservatory

    40 Welham Manor Welham Green Hatfield AL9 7EL

    Received 16 Nov 2023
  8. Decided - Granted6/2020/0664/EM

    Erection of a single storey rear extension and raising existing flat roof height

    40 Uplands Welwyn Garden City AL8 7EW

    Received 10 Mar 2020
  9. Decided - GrantedW6/2008/0724/EM

    ERECTION OF REAR CONSERVATORY, FOLLOWING DEMOLITION OF EXISTING CONSERVATORY

    380 KNIGHTSFIELD, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7LZ

    Received 24 Apr 2008
  10. Decided - Granted6/2023/1080/LAWP

    Certificate of lawfulness for installation of 10 solar panels to roof facing the rear of the property

    45 Elm Gardens Welwyn Garden City AL8 6RX

    Received 22 May 2023
  11. Decided - Granted6/2023/2128/TPO

    1 x Hornbeam to reduce by 40% to previous pruning points and reshape the crown due to tree obstructing phone lines and neighbouring properties (TPO 713 (2017) T2)

    19 Chestnut Walk Welwyn AL6 0SD

    Received 19 Oct 2023
  12. Decided - Granted6/2019/1059/HOUSE

    Erection of single storey side extension

    22 Briars Close Hatfield AL10 8DQ

    Received 30 Apr 2019
  13. Decided - Granted6/2020/1745/HOUSE

    Erection of first floor front extension, alteration of roof form into crown roof, part single part two storey rear extension, alteration of fenestration and insertion of first floor side windows into the western flank elevation wall.

    6 Hill Rise Cuffley Potters Bar EN6 4EE

    Received 14 Jul 2020
  14. Decided - Granted6/2015/2567/COND

    Approval of details reserved by condition 3 (materials), condition 4 (lights) and condition 5 (landscaping) on planning permission N6/2013/0132/S73B

    1 Ruins Cottages, Hill Farm Lane, Ayot St Lawrence, Welwyn, AL6 9BU

    Received 31 Dec 2015
  15. Decided - WithdrawnS6/2015/1020/LUP

    Certificate of lawfulness for the erection of pergola canopy covering outdoor seated patio area

    The Rookery Cafe Great North Road Welham Green Hatfield AL9 5SF

    Received 18 May 2015
  16. Decided - GrantedN6/2004/0377/FP

    ERECTION OF TWO STOREY AND SINGLE STOREY REAR EXTENSION

    1 Linces Farm Cottages Kimpton Road Welwyn AL6 9NL

    Received 12 Mar 2004
  17. Decided - GrantedN6/2007/1014/FP

    ERECTION OF SINGLE STOREY REAR AND SIDE EXTENSIONS AFTER DEMOLITION OF EXISTING GARAGE

    15 Mardley Hill Welwyn AL6 0UE

    Received 4 Jul 2007
  18. Decided - Withdrawn6/2017/0801/FULL

    Change of use from 2x dwellinghouses in multiple occupation to 6x one bedroom flats, including provision of new bicycle store, and restoration of front boundary wall.

    62-64 Great North Road Hatfield AL9 5AE

    Received 20 Apr 2017
  19. Decided - Granted6/2016/1011/HOUSE

    Conversion of loft and installation of 3no front dormer windows

    36 Canonsfield Road Welwyn AL6 0QA

    Received 8 Jun 2016
  20. Decided - Granted6/2025/2580/HOUSE

    Erection of a garden studio

    24 Sheepcote Welwyn Garden City AL7 4QD

    Received 16 Dec 2025
  21. Decided - GrantedN6/2004/0781/FP

    REPLACEMENT OF STAFF TOILETS

    27 Ayot Green Sawmill Ayot Green Ayot St Peter Welwyn AL6 9BA

    Received 27 May 2004
  22. Decided - GrantedW6/2009/1810/EM

    ENCLOSURE OF EXISTING FRONT PORCH

    292 KNIGHTSFIELD, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7NQ

    Received 26 Aug 2009
  23. Decided - Granted6/2018/2141/HOUSE

    Erection of two storey rear extension with roof modifications

    23 Robbery Bottom Lane Welwyn AL6 0UL

    Received 17 Aug 2018
  24. Decided6/2018/0441/TPO

    Reduce 1 x Silver Birch tree to 8m plus thinning of 10% - Conservation Area

    12 Little Youngs Welwyn Garden City AL8 6SL

    Received 12 Feb 2018

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

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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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