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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29,002 approved · 4,819 refused · 2,219 withdrawn.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: 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2024/1310/HOUSE

    Replacement of wooden fence and gate with wrought iron railings and the installation of handrail

    4 Ayot House Hill Farm Lane Welwyn AL6 9BP

    Received 9 Jul 2024
  2. Decided - Granted6/2023/0244/PN8

    Erection of single storey rear extension measuring 4 metres in depth with maximum height of the roof is 3m and 2.3m to the eaves

    44 Middlefield Welwyn Garden City AL7 4DJ

    Received 31 Jan 2023
  3. Decided - Granted6/2023/2430/COND

    Submission of details pursuant to Condition 15 (Skate Park screen design) on planning permission 6/2019/2431/MAJ

    Link Drive Car Park Link Drive Hatfield AL10 8TY

    Received 4 Dec 2023
  4. Decided - WithdrawnW6/2004/1576/EM

    ERECTION OF SINGLE STOREY REAR EXTENSION AND PORCH

    20 Broomfield Road Welwyn AL6 9DW

    Received 19 Oct 2004
  5. Decided - Granted6/2017/0021/HOUSE

    Erection of a single storey extension, following demolition of garage and outbuilding

    Danewood, Woodside Lane, Hatfield, AL9 6DE

    Received 5 Jan 2017
  6. Decided - Granted6/2015/2535/HOUSE

    Alterations and extension by over cladding to existing barn to form annexe to main dwelling

    Upper Cromer Hyde Farm, Cromer Hyde Lane, Lemsford, Welwyn Garden City, AL8 7XE

    Received 23 Dec 2015
  7. Decided - Granted6/2025/0332/HOUSE

    Erection of first floor front extension, garden shed, landscaping following removal of external staircase and cold store

    22B London Road Woolmer Green SG3 6JP

    Received 20 Feb 2025
  8. Decided - Granted6/2017/1199/COND

    Submission of details pursuant to condition 8 (external lighting) on planning permission S6/2015/1035/FP, dated 31/03/2016

    2 Hillcrest Hatfield AL10 8HW

    Received 1 Jun 2017
  9. Decided - Granted6/2020/2700/HOUSE

    Erection of a first floor side extension, hip to gable roof extension, loft conversion, insertion of rear dormer window and insertion of front roof lights.

    117 Tolmers Road Cuffley Potters Bar EN6 4JL

    Received 16 Oct 2020
  10. Decided - Granted6/2016/0313/EM

    Reduce up to 12ft from Conifer tree

    322 Knightsfield, Welwyn Garden City, AL8 7NQ

    Received 19 Feb 2016
  11. Decided - Granted6/2023/2135/HOUSE

    Construction of pitched roof and installation of solar panels to existing garage

    24 Great North Road Welwyn AL6 0PS

    Received 19 Oct 2023
  12. Decided - GrantedN6/2014/2311/FP

    Erection of single storey front porch following demolition of existing porch

    17 Burycroft, Welwyn Garden City, AL8 7AW

    Received 20 Oct 2014
  13. Decided - Granted6/2022/2401/HOUSE

    Erection of a single storey front, side and rear extension, first floor front extension, installation of front and rear rooflights and a front dormer, partial garage conversion and alterations to openings

    14 Mardley Wood Welwyn AL6 0UX

    Received 17 Oct 2022
  14. Decided6/2025/2124/TC

    1 x Lime to reduce height to leave approximately 4m above ground level - with the aim of allowing the tree to formulate a new canopy at a lower level The client will be planting the following new trees in their garden: - Three Flowering Cherries - Two Maples - Katsura

    31-33 Ayot Green Ayot St Peter Welwyn AL6 9AB

    Received 6 Oct 2025
  15. Decided6/2023/1089/TC

    1 x Silver birch tree with extensive damage. Tree surgeon has determined that it is dying and dangerous and must be removed

    13 Stacklands Welwyn Garden City AL8 6XW

    Received 23 May 2023
  16. Decided - GrantedS6/2014/2369/FP

    Erection of single storey rear and side extension

    34 Skimpans Close, Welham Green, Hatfield, AL9 7PB

    Received 28 Oct 2014
  17. Decided - GrantedN6/2015/0539/TE

    Removal of purple leaved plum tree

    8 Gooseacre, Welwyn Garden City, AL7 4NB

    Received 13 Mar 2015
  18. DecidedN6/2013/0133/TC

    Fell Four Holly trees and One Sycamore tree to ground level

    Land adjacent to Wendover Lodge Church Street Welwyn AL6 9LR

    Received 22 Jan 2013
  19. Decided - WithdrawnS6/2007/1467/FP

    ERECTION OF A SINGLE STOREY SIDE AND REAR EXTENSION AND A FIRST FLOOR SIDE EXTENSION

    111 THE RYDE, HATFIELD, HERTFORDSHIRE, AL9 5DP

    Received 3 Oct 2007
  20. Decided - Granted6/2016/2451/EM

    Retention of replacement hardstanding, vehicle crossover and boundary fence to front

    89 Haldens Welwyn Garden City AL7 1DQ

    Received 21 Nov 2016
  21. Decided - Granted6/2021/2883/EMH

    Erection of a two storey rear extension.

    81 Knightsfield Welwyn Garden City AL8 7JE

    Received 7 Oct 2021
  22. Decided - GrantedN6/2007/0317/FP

    ERECTION OF REAR CONSERVATORY

    52 LANGSTONE LEYS, WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 1FQ

    Received 27 Feb 2007
  23. Decided - Refused6/2015/1922/HOUSE

    Erection of a front porch and a part single part two storey rear extension

    21 St Audreys Close Hatfield AL10 8UN

    Received 8 Sept 2015
  24. Decided - RefusedW6/2012/2545/TE

    Fell one Ailanthus tree and one Beech tree

    194 Knightsfield, WELWYN GARDEN CITY, AL8 7RQ

    Received 3 Dec 2012

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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