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
40,295Searchable applications
322Recorded as pending
86%Approval rate · 33,786 approved or refused records
4,816Refused applications

28,970 approved · 4,816 refused · 2,217 withdrawn. Received dates in our records: 29 Apr 1948 to 29 Oct 2026. Most recent record check: 7 Nov 2026. Counts reflect the last collected status; some records may be out of date.

Local planning information

Council sources checked 14 Sept 2026

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 - RefusedS6/2009/2417/FP

    ERECTION OF A TWO STOREY REAR AND ONE & A HALF STOREY SIDE EXTENSIONS

    5 NORTHAW ROAD EAST, CUFFLEY, POTTERS BAR, HERTFORDSHIRE, EN6 4LU

    Received 29 Oct 2009
  2. Decided - Refused6/2022/2358/LAWE

    Certificate of lawfulness for the existing first floor employee only accommodation above Brookmans pub, mixture of 5 ensuite and shared bathrooms, use of private kitchen and pub car park.

    Brookmans Bradmore Green Brookmans Park AL9 7QW

    Received 11 Oct 2022
  3. Decided - Refused6/2020/2062/LAWP

    Certificate of Lawfulness for the erection of a single storey side extension.

    61 Crookhams Welwyn Garden City AL7 1PG

    Received 16 Aug 2020
  4. Decided - Granted6/2017/1450/HOUSE

    Erection of a single storey rear extension and alterations to openings following demolition of existing conservatory

    7 Somersham Welwyn Garden City AL7 2PZ

    Received 4 Jul 2017
  5. Decided - Refused6/2015/2463/HOUSE

    Erection of front boundary wall and gates and 1.7m high picket fence to side boundary adjacent to highway

    15 Tolmers Road, Cuffley, Potters Bar, EN6 4JF

    Received 15 Dec 2015
  6. Decided - Granted6/2015/1542/HOUSE

    Change of use from amenity land to garden and associated landscape works

    6 Douglas Way Welwyn Garden City AL7 2LY

    Received 21 Jul 2015
  7. Decided - Granted6/2020/2303/EMT

    Crown reduction of 30% to oak tree

    368 Knightsfield Welwyn Garden City AL8 7NG

    Received 8 Sept 2020
  8. Decided - GrantedS6/2007/1112/FP

    ERECTION OF FIRST FLOOR REAR EXTENSION AND NEW ROOF TO EXISTING GARAGE/UTILITY ROOM

    35 Calder Avenue Brookmans Park Hatfield AL9 7AH

    Received 23 Jul 2007
  9. Decided - Granted6/2016/0230/HOUSE

    Erection of single storey rear extension with flat roof and alterations.

    29 Little Ganett, Welwyn Garden City, AL7 3DG

    Received 10 Feb 2016
  10. Decided - Granted6/2020/1439/EM

    Replacement of garage door

    23 Templewood Welwyn Garden City AL8 7HT

    Received 5 Jun 2020
  11. Decided - Granted6/2017/2699/EM

    Erection of two sheds following demolition of two existing sheds. Removal of trees/hedges.

    74 Rosedale Welwyn Garden City AL7 1DR

    Received 20 Nov 2017
  12. Decided - GrantedS6/2008/1626/S73B

    REMOVAL OF CONDITION 2 (VISIBILITY) AND VARIATION OF CONDITION 3 (WINDOW DISPLAY) OF PLANNING PERMISSION S6/2008/0102/FP

    7 Parkhouse Court Hatfield AL10 9RQ

    Received 20 Aug 2008
  13. Decided6/2018/2703/CN

    Masterplan for the development North East of Welwyn Garden City

    Land to North East Of Welwyn Garden City Panshanger Welwyn Garden City AL7 2QJ

    Received 22 Oct 2018
  14. Decided - Granted6/2017/0117/COND

    Approval of details reserved by condition 3 (Demolition and construction repair method), 4 (Replacement windows and doors) & 5 (Photographic record of original fabric) of listed building consent N6/2013/2386/LB

    5 Pennyfathers Lane Welwyn AL6 0EN

    Received 23 Jan 2017
  15. Decided - Granted6/2018/1827/HOUSE

    Erection of a single and two storey rear extension and internal alterations.

    49 Woodland Rise Welwyn Garden City AL8 7LJ

    Received 9 Jul 2018
  16. Decided - Granted6/2020/3223/LB

    Demolish section of garden brick wall to enlarge access to rear.

    2 Codicote Road Welwyn AL6 9NB

    Received 30 Nov 2020
  17. Decided - Granted6/2018/2131/PN8

    Prior approval for the erection of single storey rear extension measuring 6.0m in depth, 2.8m in height, 2.6m to the eaves

    4 Crop Common Hatfield AL10 0DF

    Received 15 Aug 2018
  18. Decided - GrantedN6/2007/1798/FP

    ERECTION OF SINGLE STOREY EXTENSION TO ENTRANCE HALL

    THE NEW HOUSE, BESSEMER ROAD, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7LU

    Received 26 Nov 2007
  19. Decided - Withdrawn6/2016/0828/FULL

    Change of use from amenity land to residential land

    291 Knightsfield, Welwyn Garden City, AL8 7NH

    Received 3 May 2016
  20. Decided - GrantedW6/2014/1065/TE

    Lift Lime tree crown by 5 metres and reduce canopy by 30% plus removal of Magnolia tree

    21 High Oaks Road, Welwyn Garden City, AL8 7BJ

    Received 23 May 2014
  21. Decided - Granted6/2022/0868/PN19

    Prior approval for erection of a new farm building for storage of hay and agricultural machinery

    Thorntons Farm Vineyards Road Northaw Potters Bar Hertfordshire EN6 4PF

    Received 11 Apr 2022
  22. Decided - Granted6/2015/1523/LAWP

    Certificate of lawfulness for the erection of single storey rear extension and bricking up of existing front doorway

    61 Briars Wood Hatfield AL10 8DH

    Received 14 Jul 2015
  23. Decided - Granted6/2025/1341/FULL

    Erection of dwelling following demolition of existing bungalow

    24 Fulling Mill Lane Welwyn AL6 9NS

    Received 26 Jun 2025
  24. Decided - Granted6/2017/2072/EM

    Reduce 2 Oak trees (1 & 3) by up to 30%

    29 Mandeville Rise Welwyn Garden City AL8 7JT

    Received 14 Sept 2017

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

View all applications

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.

  • 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.

  • 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.

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