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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29,002 approved · 4,819 refused · 2,219 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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 - Refused6/2017/2844/EM

    Formation of new front garden/driveway

    6 High Oaks Road Welwyn Garden City AL8 7BH

    Received 5 Dec 2017
  2. Decided - GrantedS6/2008/1548/FP

    ERECTION OF SINGLE STOREY REAR EXTENSION

    30 THE PASTURES, HATFIELD, HERTFORDSHIRE, AL10 8PD

    Received 19 Aug 2008
  3. Appeal Decided - Dismissed6/2022/1266/FULL

    Change of use of annex to separate Class C3 dwellinghouse

    Annex at 51 School Lane Welwyn AL6 9PL

    Received 30 May 2022
  4. Decided - Granted6/2023/0995/HOUSE

    Installation of new dormer window to convert existing garage to games room

    20 Cromer Hyde Lane Lemsford Welwyn Garden City AL8 7XE

    Received 10 May 2023
  5. Decided - Granted6/2022/2365/FULL

    Erection of a multi-use building to provide classrooms, sports facilities and changing rooms, with associated access, parking and landscaping for the Special Sensory Academy School.

    Knightsfield School Knightsfield Welwyn Garden City AL8 7LW

    Received 12 Oct 2022
  6. Decided - RefusedN6/2013/2155/FP

    Erection of single storey double garage

    24 London Road, Welwyn, AL6 9JD

    Received 10 Oct 2013
  7. Decided - RefusedN6/2015/0153/NM

    Non material amendment following approval of planning permission N6/2013/2090/FP - Omission of 2no rooflights from existing roof, addition of 1no rooflight to rear face of extension roof, minor alterations to roof configuration, omission of narrow window on rear elevation, window changed from painted timber to aluminium - first floor rear elevation. Window size decreased and no of panes decreased. Doors changed from painted timber to alluminium - ground floor rear elevation. Leaf no decreased 6 to 5 (Overall width the same) and lower panel omitted from window on flank elevation.

    4 The Glade, Welwyn Garden City, AL8 7LG

    Received 28 Jan 2015
  8. Decided - GrantedS6/2013/1037/DS

    Discharge of condition 5 (Rainwater) & 6 ( Replacement windows and doors) of planning permission S6/2012/1336/LB

    The Old Maypole, 43 Warrengate Road, North Mymms, Hatfield, AL9 7TT

    Received 14 May 2013
  9. Decided - Granted6/2018/3257/HOUSE

    Erection of part single storey, part two storey side extension following demolition of garage and single storey rear infill extension between main house and outbuilding to facilitate conversion of existing outbuilding and raising of outbuilding's roof

    101 Bushey Ley Welwyn Garden City AL7 3HF

    Received 20 Dec 2018
  10. Decided - WithdrawnW6/2007/0417/EM

    ERECTION OF TWO STOREY REAR EXTENSION

    11 Hunsdon, Welwyn Garden City, AL7 2PN

    Received 14 Mar 2007
  11. Decided - GrantedS6/2008/1100/FP

    PROVISION OF PARKING AREA (TO EAST OF GREAT NAST HYDE HOUSE) & NEW FOOTGATE (IN EASTERN ELEVATION OF GARDEN WALL)

    GREAT NAST HYDE HOUSE, WILKINS GREEN LANE, HATFIELD, HERTFORDSHIRE, AL10 9RB

    Received 3 Jul 2008
  12. Decided - Granted6/2025/2201/TPO

    T1 Oak prune branches to give 1.5m clearance either side of the stay lines in 2no locations as per map

    Brookmans Park Teleport, Arqiva Great North Road Brookmans Park AL9 6NE

    Received 15 Oct 2025
  13. Decided - RefusedW6/2004/0575/EM

    ERECTION OF FIRST FLOOR SIDE EXTENSION

    33 Springfields, Welwyn Garden City, AL8 6XT

    Received 19 Apr 2004
  14. Decided - Granted6/2025/0227/HOUSE

    Erection of single storey side extension

    60 Carleton Rise Welwyn AL6 9RG

    Received 10 Feb 2025
  15. Decided - Granted6/2026/1062/HOUSE

    Erection of rear single storey extension following demolition of brick-built store

    100 Cole Green Lane Welwyn Garden City AL7 3JD

    Received 18 Jun 2026
  16. Decided - GrantedN6/2005/1263/FP

    INSTALLATION OF CCTV CAMERA, MOUNTED ON 6M COLUMN

    LAND AT, FRETHERNE ROAD, JUNCTION OFF CHURCH ROAD, WELWYN GARDEN CITY, HERTFORDSHIRE

    Received 6 Oct 2005
  17. Decided - Granted6/2019/2086/LAWP

    Certificate of lawfulness for the use of land for siting a mobile home for use ancillary to the main dwelling

    97 Crawford Road Hatfield AL10 0PF

    Received 21 Aug 2019
  18. Decided - Granted6/2018/0321/PN8

    Prior approval for the erection of single storey rear extension measuring 6m in depth, 3m in heights, 3m to the eaves

    4 Green Lanes Hatfield AL10 9JT

    Received 30 Jan 2018
  19. Decided - Granted6/2015/1847/FULL

    Change of use from two-bedroom maisonette (C3) to HMO (C4) for 3 occupants.

    81 Bradmore Green, Brookmans Park, Hatfield, AL9 7QT

    Received 2 Sept 2015
  20. Decided - Granted6/2020/0291/COND

    Submission of details pursuant to condition 1 (materials) on planning permission 6/2019/1392/HOUSE

    3A Russellcroft Road Welwyn Garden City AL8 6QN

    Received 30 Jan 2020
  21. Decided - Refused6/2016/2180/EM

    Erection of a single storey side/rear extension

    10 Homestead Lane Welwyn Garden City AL7 4LU

    Received 17 Oct 2016
  22. Decided - Refused6/2017/2859/PN8

    Prior approval for the erection of a single storey rear extension measuring 6m in depth, 3.3m in heights, 3.3m to the eaves

    8 Cecil Crescent Hatfield AL10 0HF

    Received 6 Dec 2017
  23. Decided - WithdrawnN6/2005/0969/FP

    ALTERATIONS TO FRONT ELEVATION

    THE WELLINGTON, HIGH STREET, WELWYN, HERTFORDSHIRE, AL6 9LZ

    Received 4 Aug 2005
  24. Decided - GrantedN6/2014/1004/FP

    Erection of single storey rear extension and alterations to roofslope to include a rear dormer and hip to gable ends

    9 Chestnut Walk Welwyn AL6 0SB

    Received 13 May 2014

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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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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