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
40,297Searchable 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28,987 approved · 4,819 refused · 2,218 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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 - Refused6/2020/2133/HOUSE

    Erection of front and rear extensions

    31 Aldykes Hatfield AL10 8ED

    Received 18 Aug 2020
  2. Decided - GrantedN6/2014/0499/TP

    T1 & T4 crown clean, T2 reduce and shape by 2m linear length and crown clean, T3 shorten back by 2mlowest 2 branches over neighbours garden and crown clean, covered by TPO 24 A3

    26 Mardley Hill Welwyn AL6 0TS

    Received 11 Mar 2014
  3. Decided - Granted6/2018/0836/HOUSE

    Erection of a first floor rear extension

    2 Barleycroft Green Welwyn Garden City AL8 6JY

    Received 29 Mar 2018
  4. Decided - Granted6/2021/0139/EMT

    Apple T2 - Fell and treat stump

    24 Dellcott Close Welwyn Garden City AL8 7BD

    Received 18 Jan 2021
  5. Decided - Withdrawn6/2026/1816/EMT

    T1 oak - crown reduction by approximately 4m from branch tips T2 oak - crown reduction by approximately 1-2m from branch tips

    51 Brockswood Lane Welwyn Garden City AL8 7BU

    Received 9 Oct 2026
  6. Decided6/2022/2557/TC

    Fell beech tree in front garden due to honey fungus disease

    31 Bridge Road Welwyn Garden City AL8 6UG

    Received 8 Nov 2022
  7. Decided6/2024/2094/TC

    Hornbeam to reduce back lateral growth over neighbouring garden back to boundary line. Japanese cedar to selectively reduce to improve shape and form, reduce back lateral growth over neighbouring garden. Crab apple to reduce by 1.2m to create a more compact shape.

    7 Fore Street Hatfield AL9 5AN

    Received 30 Oct 2024
  8. Decided - Granted6/2025/1610/FULL

    Erection of two stables following demolition of existing stables

    Land To Rear of Mymms Drive Brookmans Park AL9 7AF

    Received 28 Jul 2025
  9. Decided - Granted6/2016/0262/HOUSE

    Installation of hinged front entrance gates, front boundary wall and railings and landscaping of front garden

    47 Mymms Drive, Brookmans Park, Hatfield, AL9 7AE

    Received 16 Feb 2016
  10. Decided - Refused6/2016/2076/EM

    Erection of first floor rear extension

    9 Little Lake, Welwyn Garden City, AL7 4RT

    Received 27 Sept 2016
  11. Decided - Withdrawn6/2015/2047/HOUSE

    Erection of single and two storey side and rear extensions, loft conversion and internal alterations

    16 Selwyn Drive, Hatfield, AL10 9NJ

    Received 5 Oct 2015
  12. Decided - Granted6/2021/3523/HOUSE

    Demolition of existing stable building and erection of new single storey dwelling

    Tollgate Farm Tollgate Road North Mymms Hatfield AL4 0NY

    Received 21 Dec 2021
  13. Decided6/2021/0979/TC

    Reduce Twin Stem Silver Birch by 2m height & 1.5m width. Reduce 1x Silver Birch by 2m height and 1.5m width. Fell 1x Whitebeam. Reduce 1x Elder by 2m height. Fell 1x Hawthorn to ground level

    24 Fordwich Road Welwyn Garden City AL8 6EY

    Received 25 Mar 2021
  14. Decided - Granted6/2018/0733/EM

    Erection of a single storey rear extension following demolition of existing conservatory

    234 Howlands Welwyn Garden City AL7 4HF

    Received 20 Mar 2018
  15. Decided - Refused6/2024/2264/LAWP

    Certificate of lawfulness for a proposed rear outbuilding

    74 Warrengate Road North Mymms Hatfield AL9 7TY

    Received 25 Nov 2024
  16. DecidedN6/2009/1257/TE

    FELLING OF EUCALYPTUS TREE FROM REAR OF PROPERTY

    34 BROCKSWOOD LANE, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7BG

    Received 23 Jun 2009
  17. Decided - Refused6/2025/0058/COND

    Submission of details pursuant to condition number 3 (Noise impact assessment and noise management plan) on planning permission 6/2021/1313/FULL (Allowed at appeal APP/C1950/W/21/3283801)

    The Coach And Horses 61 Newgate Street Village Hertford SG13 8RA

    Received 15 Jan 2025
  18. Decided - Granted6/2015/1933/HOUSE

    Erection of Porch to front elevation

    Digswell Water Mill Digswell Lane Welwyn AL6 0SW

    Received 16 Sept 2015
  19. Decided - WithdrawnN6/2015/0717/TP

    Reduce Lime tree by 1.5 metres covered by TPO4

    The Vicarage, 48 Parkway, Welwyn Garden City, AL8 6HH

    Received 31 Mar 2015
  20. Decided - Granted6/2024/1704/EM

    Fencing to the front garden

    26 Kilworth Close Welwyn Garden City AL7 3HR

    Received 5 Sept 2024
  21. Decided - GrantedN6/2009/1765/MA

    ERECTION OF 38 DWELLINGS WITH ASSOCIATED ACCESS, PARKING AND LANDSCAPING

    FORMER WELWYN FORD GARAGE, LONDON ROAD & BYPASS ROAD, WELWYN, HERTFORDSHIRE, AL6 9HY

    Received 13 Aug 2009
  22. Decided - GrantedS6/2008/0576/FP

    ERECTION OF FIRST FLOOR REAR EXTENSION

    33 Holme Road Hatfield AL10 9LH

    Received 17 Mar 2008
  23. Decided - Granted6/2018/2636/EM

    Fell 1 x unknown Tree Species DD tree

    9 Lytton Gardens Welwyn Garden City AL8 6EG

    Received 15 Oct 2018
  24. Decided - Granted6/2024/2186/HOUSE

    Erection of part single and part two storey rear extension with external balcony. Erection of single storey side/rear extension with connection to existing garage and alterations to openings and replacement windows and solar panels

    46A Moffats Lane Hatfield AL9 7RU

    Received 12 Nov 2024

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