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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
34,536Searchable applications
313Recorded as pending
87%Approval rate · 28,769 approved or refused records
3,809Refused applications

24,960 approved · 3,809 refused · 1,795 withdrawn. Received dates in our records: 29 Apr 1948 to 14 Oct 2026. Most recent record check: 22 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 Counts reflect the last collected status; some records may be out of date.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. Decided - Granted6/2026/0632/PN8

    Prior approval for a single storey rear extension which will measure 4m in depth, 3m to the eaves and the maximum height of 2.69m

    29 Heathcote Avenue Hatfield AL10 0RQ

    Received 9 Apr 2026
  2. Under Consultation6/2026/1642/HOUSE

    Conversion of existing attached garage to a habitable room involving removal of the existing garage door, infilling with matching brickwork, installation of a double-glazed uPVC window, and associated internal alterations

    55 Dragon Road Hatfield AL10 9LY

    Received 21 Sept 2026
  3. Decided - Refused6/2021/3129/EM

    Removal of attached garage and 3 meter high Leylandi trees, to facilitate the erection of a detached double garage to the front/side of existing main dwelling. Work to also include replacement of existing driveway surface and extension of existing driveway, plus insertion of new low level privet hedging.

    11 Aldock Welwyn Garden City AL7 4QF

    Received 2 Nov 2021
  4. Decided - Withdrawn6/2026/0294/TC

    1 x Cherry plum to reduce to approximately 3m above ground level, leaving a framework for the tree to grow on from

    34 Rosedale Welwyn Garden City AL7 1DR

    Received 19 Feb 2026
  5. Decided6/2025/1836/TC

    1 x Silver birch to crown reduce by 20% and to crown thin by 10-15%

    71 Marsden Road Welwyn Garden City AL8 6YH

    Received 28 Aug 2025
  6. Decided - RefusedS6/2008/1631/FP

    ERECTION OF SIDE EXTENSION AND EXTENSIONS TO ROOF

    20 THEOBALDS ROAD, CUFFLEY, POTTERS BAR, HERTFORDSHIRE, EN6 4HQ

    Received 20 Aug 2008
  7. Decided - Granted6/2021/0242/EM

    Single storey, part two storey rear extension and alterations to openings

    141 Oakdale Welwyn Garden City AL8 7QS

    Received 26 Jan 2021
  8. Decided - Granted6/2016/0897/EM

    Erection of wooden gazebo

    53 Archers Ride, Welwyn Garden City, AL7 4PR

    Received 9 May 2016
  9. Decided - Refused6/2020/3054/LAWP

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

    12 Gresley Close Welwyn Garden City AL8 7QB

    Received 18 Nov 2020
  10. Decided - Granted6/2017/0138/HOUSE

    Conversion of garage, insertion of replacement flat roof over play room and alterations to existing rear openings

    16 Birch Road Woolmer Green Knebworth SG3 6LW

    Received 25 Jan 2017
  11. Decided - Granted6/2018/2488/EM

    Conversion of the roof space to provide 3x one bed studio flats and the erection of a first floor rear extension to provide 1x one bed studio and storage area for the shops (A1) below as well as ground floor internal alterations with associated parking arrangements.

    179 Handside Lane Welwyn Garden City AL8 6TA

    Received 1 Oct 2018
  12. Decided - GrantedW6/2013/2060/EM

    Formation of vehicle hardstanding and crossover

    204 Heronswood Road, Welwyn Garden City, AL7 3JQ

    Received 27 Sept 2013
  13. Decided6/2025/1075/TC

    1 x Willow to reduce by 1.5m height and width 1 x Atlas Cedar to reduce by 1.5m height and width (over lawn area slightly harder) 1 x Variegated Maple to reduce by 1.5m in height and width

    13 The Old Drive Welwyn Garden City AL8 6TB

    Received 6 Jun 2025
  14. Decided - Withdrawn6/2021/3380/MAJ

    Erection of 2 x buildings comprising of 111 x apartments, access, car and parking works, and landscaping and ancillary development, involving demolition of existing building

    73 Bridge Road East, Welwyn Garden City AL7 1UT

    Received 1 Dec 2021
  15. Call In/Major Objection6/2026/1251/MAJ

    Change of use to wedding venue, conference, ceremonies, corporate events and filming (Retrospective)

    Mansion House North Mymms Park Tollgate Road North Mymms Hatfield AL9 7TR

    Received 16 Jul 2026
  16. Decided - Granted6/2022/2025/EM

    Erection of timber panel fencing to the rear garden of the property

    20 Lady Grove Welwyn Garden City AL7 4DU

    Received 31 Aug 2022
  17. Decided - Withdrawn6/2019/3097/FULL

    Erection of a two storey car park extension

    6 Falcon Way Welwyn Garden City AL7 1TW

    Received 5 Dec 2019
  18. Decided - GrantedN6/2010/0080/TE

    REMOVAL OF ONE SMALL LEYLANDII TREE AND ONE LARGE LEYLANDII TREE AND 40% CUT BACK OF THREE HOLLY TREES

    41 DIGSWELL RISE, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7PP

    Received 15 Jan 2010
  19. Decided - Granted6/2024/1923/TC

    T1-Silver Birch-Crown reduce all round by 2-3 metres to maintain its size for the garden. T2-Crimson Maple-Crown reduce all round by 1-2 metres to maintain its size for the garden Estate Management Application

    43 Digswell Park Road Welwyn Garden City AL8 7NW

    Received 8 Oct 2024
  20. Decided - Granted6/2025/1719/EMT

    To take down Apple tree in the back garden

    105 Handside Lane Welwyn Garden City AL8 6SP

    Received 12 Aug 2025
  21. Decided6/2020/1599/TC

    Reduce 1 x Pine tree by 5m

    30 Digswell Road Welwyn Garden City AL8 7PA

    Received 6 Jul 2020
  22. Decided - Refused6/2021/0788/ADV

    Installation of 1 x non-illuminated banner sign

    Fountain House Parkway Welwyn Garden City AL8 6AL

    Received 11 Mar 2021
  23. Decided - Granted6/2015/2185/PN8

    Erection of single storey rear extension

    54 Wildhill Road, Brookmans Park, Hatfield, AL9 6DS

    Received 23 Oct 2015
  24. Decided - Granted6/2026/1039/EM

    Erection of a single-storey detached garden room (outbuilding) measuring 4.0 m × 3.0 m with a mono-pitch roof to a maximum height of 2.40 m sited in the rear corner of the garden (Retrospective)

    21 Fearnley Road Welwyn Garden City AL8 6HW

    Received 15 Jun 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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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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