PlanningTrack
Get started

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
40,163Searchable applications
309Recorded as pending
86%Approval rate · 33,679 approved or refused records
4,801Refused applications

28,878 approved · 4,801 refused · 2,208 withdrawn. Received dates in our records: 29 Apr 1948 to 29 Oct 2026. Most recent record check: 4 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2018/0799/HOUSE

    Erection of a rear outbuilding for use as a sun room,gym and store

    69 Northaw Road East Cuffley Potters Bar EN6 4LY

    Received 26 Mar 2018
  2. Decided - Granted6/2021/2076/HOUSE

    Erection of a single storey rear extension

    15 The Gardens Hatfield, Brookmans Park, AL9 7UL

    Received 9 Jul 2021
  3. Decided - Granted6/2021/2674/HOUSE

    Erection of single storey side extension

    10 Two Oaks Drive Welwyn AL6 0EZ

    Received 15 Sept 2021
  4. Decided - GrantedS6/2004/1381/LB

    ERECTION OF FIRST FLOOR SIDE EXTENSION, RESUBMISSION OF REFUSED APPLICATION S6/2004/0836/LB

    2 Woodhill House Kentish Lane Brookmans Park Hatfield AL9 6JY

    Received 14 Sept 2004
  5. Decided - Granted6/2017/2570/COND

    Submission of details pursuant to condition 2 (construction method statement) on planning permission 6/2016/1902/FULL

    Welwyn North Station Harmer Green Lane Digswell Welwyn AL6 0AS

    Received 7 Nov 2017
  6. Appeal Decided - Dismissed6/2021/1026/ADV

    Installation of 2 sets of internally illuminated fascia text and 1 externally illuminated projection sign

    9 Osborn House Howardsgate Welwyn Garden City AL8 6AT

    Received 29 Mar 2021
  7. Decided - GrantedN6/2013/1673/FP

    Extension of pitched roof over wood store area, new roof over store & pitch roof added to bay windows with apex over front door

    80 Brocket Road, Welwyn Garden City, AL8 7TU

    Received 2 Aug 2013
  8. Decided - GrantedN6/2015/0137/FP

    Erection of a part single storey part two storey rear extension and single storey side extension with internal alterations

    3 Beehive Green, Welwyn Garden City, AL7 4BE

    Received 23 Jan 2015
  9. Decided - Granted6/2024/1983/EMT

    Reduce height of Ash tree in front garden by 50% (Tree A) Reduce size of Cherry tree in front garden by a maximum of a third (Tree B) Remove self seeded tree (type unknown) in back garden (Tree C)

    155 Handside Lane Welwyn Garden City AL8 6TA

    Received 15 Oct 2024
  10. Decided - Granted6/2019/1999/HOUSE

    Erection of a first floor rear extension and alterations to side and rear fenestration

    20 Attimore Close Welwyn Garden City AL8 6LN

    Received 12 Aug 2019
  11. Decided - Granted6/2017/2300/HOUSE

    Erection of a part single, part two storey rear extension

    99 Hillyfields Welwyn Garden City AL7 2EA

    Received 9 Oct 2017
  12. Appeal Decided - Allowed6/2023/0989/FULL

    Change of use of a dwelling (C3a) to a children's home (C2) for a maximum of four children

    48 The Runway Hatfield AL10 9GL

    Received 9 May 2023
  13. Decided - Granted6/2022/1712/HOUSE

    Single storey rear extension

    13 Digswell Park Road Welwyn Garden City AL8 7NW

    Received 20 Jul 2022
  14. Decided6/2021/2408/TC

    Reduce 1 x Hornbeam tree by 30% and thin 1 x Oak tree by 30% covered by conservation area

    21 Coneydale Welwyn Garden City AL8 7RX

    Received 16 Aug 2021
  15. Decided - Granted6/2020/3183/HOUSE

    Erection of side and rear extension

    58 Wellcroft Road Welwyn Garden City AL7 3JY

    Received 26 Nov 2020
  16. Decided - Granted6/2015/2337/FULL

    Erection of replacement dwelling with garage, driveway, boundary treatments including gate, walls and railings, and ancillary development following demolition of existing house

    Zither Great North Road Brookmans Park Hatfield AL9 6ND

    Received 18 Nov 2015
  17. Appeal Decided - Allowed6/2018/1620/HOUSE

    Erection of two storey rear extension

    Norcott West End Lane Essendon Hatfield AL9 6AU

    Received 15 Jun 2018
  18. Decided - Granted6/2026/0535/PN19

    Prior approval for the erection of agricultural building to be used as a grain store

    Hill End Farm Hill End Hertford Road Hatfield AL9 5PQ

    Received 24 Mar 2026
  19. Decided - Granted6/2016/0357/HOUSE

    Erection of a single storey rear extension

    9 Wheatfield, Hatfield, AL10 0JB

    Received 4 Mar 2016
  20. Decided - Granted6/2020/2447/HOUSE

    Timber garden summerhouse to garden area of property

    54 High Road Essendon Hatfield AL9 6AP

    Received 23 Sept 2020
  21. Decided - Refused6/2022/1815/HOUSE

    Installation of larger front and rear dormers, brick up existing side facing windows.

    32 Fulling Mill Lane Welwyn AL6 9NS

    Received 3 Aug 2022
  22. Decided - GrantedN6/2013/0905/FP

    Erection of two single storey rear conservatories

    Rowans Primary School, Rowans, WELWYN GARDEN CITY, AL7 1NZ

    Received 30 Apr 2013
  23. Decided - GrantedS6/2014/2043/DM

    Removal of arcade canopy roof

    The Arcade Hatfield AL10 0JY

    Received 16 Sept 2014
  24. Decided - Granted6/2025/0624/LAWP

    Certificate of lawfulness for 3m single storey rear extension

    14 Puttocks Drive Welham Green Hatfield AL9 7LP

    Received 1 Apr 2025

Records are ordered by application ID, not submission date. Use search to find a particular address or proposal.

View all applications

Applications by postcode area

Get emailed about new planning applications in Welwyn Hatfield

Area alerts send a daily or weekly email with new applications and decisions near a postcode, filtered by project type. £29 a month, up to 3 areas. Records are limited to the councils we collect.

Set up an area alert

Researching a proposal in Welwyn Hatfield Borough Council

Start with the address or application reference. Open a record to read the proposal, dates and available documents, then check the official register for the latest plans and consultation details. If nothing appears, check coverage before treating the result as a complete planning history.

How to search planning applications

Guides to planning records

All planning guides

  • Understanding planning · 13 min read

    Planning application documents: what to read first

    Understand planning application documents, officer reports and decision notices. Use a reading checklist, document table and worked example to inspect a case.

    UK research
    Published Updated

  • Understanding planning · 13 min read

    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.

    UK research
    Published Updated

  • 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.

    UK research
    Published Updated

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.

Check collection coverage

More planning authorities in England

Browse all authorities