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
40,250Searchable applications
321Recorded as pending
86%Approval rate · 33,746 approved or refused records
4,812Refused applications

28,934 approved · 4,812 refused · 2,213 withdrawn. Received dates in our records: 29 Apr 1948 to 29 Oct 2026. Most recent record check: 6 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 Counts reflect the last collected status; some records may be out of date.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 - RefusedN6/2008/0410/OP

    ERECTION OF NEW DETACHED BUNGALOW

    14 Great North Road Welwyn AL6 0PL

    Received 26 Feb 2008
  2. Decided - Refused6/2018/1226/LAWP

    Certificate of lawfulness for the erection of an outbuilding

    84 High Dells Hatfield AL10 9HU

    Received 4 May 2018
  3. Decided - Granted6/2018/0394/COND

    Submission of details pursuant to condition 2 (material samples) and 3 (large scale drawings of roof, windows, doors and front porch) on planning permission 6/2015/1987/FULL, dated 09/01/2016

    24 Mill Lane Welwyn AL6 9ET

    Received 7 Feb 2018
  4. Decided - Granted6/2020/0682/HOUSE

    Erection of a two storey front, single storey rear and first floor side extension

    3 Willow Grove Welwyn Garden City AL8 7NA

    Received 10 Mar 2020
  5. Decided6/2026/1333/TC

    Fell a mature mulberry tree

    3 Youngs Rise Welwyn Garden City AL8 6RT

    Received 29 Jul 2026
  6. Decided - GrantedN6/2014/1749/FP

    Erection of two storey rear extension and alteration to side elevation following demolition of existing rear conservatory

    28 Canonsfield Road Welwyn AL6 0QH

    Received 4 Aug 2014
  7. Decided - Granted6/2020/1438/EMT

    Reduce 3 x Oak tree crowns by 20% (T1, T2 and T3)

    7 Reddings Welwyn Garden City AL8 7LA

    Received 19 Jun 2020
  8. Decided - Granted6/2024/1321/COND

    Submission of details pursuant to condition 16 (materials) on planning permission 6/2022/2317/MAJ

    Videne Hawkshead Road Little Heath Potters Bar EN6 1LX

    Received 10 Jul 2024
  9. Decided - GrantedW6/2007/0953/EM

    ERECTION OF A SINGLE STOREY REAR EXTENSION

    22 Newfields, Welwyn Garden City, AL8 6YT

    Received 25 Jun 2007
  10. Decided - GrantedN6/2013/1541/FP

    Removal of existing outhouse and conservatory and erection of single storey rear extension

    225 Handside Lane, Welwyn Garden City, AL8 6TF

    Received 18 Jul 2013
  11. Appeal Decided - DismissedS6/2015/1160/LB

    Conversion of barn to dwelling which includes the insertion of a first floor, seven rooflights and windows and doors at ground floor level.

    Northaw Equestrian Centre Northaw Road West Northaw Potters Bar EN6 4NT

    Received 29 May 2015
  12. Decided - Granted6/2022/1572/COND

    Submission of details pursuant to conditions 4 (Cycle parking) & 5 (soft landscaping) on planning permission 6/2021/0214/FULL

    Little Guessens 6 Codicote Road Welwyn Hertfordshire AL6 9NB

    Received 4 Jul 2022
  13. Appeal Decided - Dismissed6/2022/1901/HOUSE

    Erection of a rear box dormer, the installation of roof lights to the front roof slope and the raising of the ridgeline of the existing dwelling to facilitate the conversion of the loft space into habitable accommodation

    14 The Reeds Welwyn Garden City AL7 3BN

    Received 16 Aug 2022
  14. Decided - Granted6/2023/2229/VAR

    Variation of condition 2 (approved plans) on planning permission 6/2020/0714/MAJ (allowed under planning appeal APP/C1950/W/21/3269378).

    Land at Oakleigh Farm Industrial Estate Codicote Road Welwyn AL6 9TY

    Received 2 Nov 2023
  15. Decided - GrantedS6/2007/0955/AD

    ERECTION OF INTERNALLY ILLUMINATED FASCIA AND PROJECTING SIGNAGE

    Former Public House 59 Station Road Cuffley Potters Bar EN6 4HX

    Received 22 Jun 2007
  16. Decided6/2020/3157/TC

    Lawson Cypress to remove limb growing towards neighbouring property. (See Photo) 1 x Blue Lawson Cypress to reduce by 4m height.

    2 Thumbswood Welwyn Garden City AL7 4QE

    Received 25 Nov 2020
  17. Decided - GrantedN6/2009/1045/FP

    ERECTION OF FIRST FLOOR SIDE EXTENSION AND INSTALLATION OF TWO REAR ROOFLIGHTS

    48 BEEHIVE LANE, WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 4BP

    Received 27 May 2009
  18. Decided - Granted6/2018/3126/HOUSE

    Erection of single storey rear extensions, creation of a rear dormer and alterations to openings

    The Barn 5 Lysley Place Brookmans Park Hatfield AL9 6NZ

    Received 7 Dec 2018
  19. Decided - Granted6/2025/0142/EM

    Erection of porch canopy, single storey front, side and rear extensions following the demolition of the existing conservatory, raise in garage roof height to facilitate its conversion to habitable space, and fenestration alterations

    310 Knightsfield Welwyn Garden City AL8 7NQ

    Received 28 Jan 2025
  20. Decided - Granted6/2023/1546/LAWE

    Certificate of lawfulness for the existing use of property as cafe/restaurant (Class E)

    1 Maynard Place Cuffley Potters Bar EN6 4JA

    Received 25 Jul 2023
  21. Appeal Decided - Allowed6/2021/1021/HOUSE

    Erection of an outbuilding with external verandah for ancillary use in connection with the main dwelling house(retrospective)

    51 Kentish Lane Brookmans Park Hatfield AL9 6NG

    Received 29 Mar 2021
  22. Decided - Granted6/2023/0855/COND

    Submission of details pursuant to condition 8 (Arboricultural Method Statement) on planning permission S6/2015/1342/FP

    Land to the north east of King George V Playing Fields Northaw Road East Cuffley EN6 4RD

    Received 20 Apr 2023
  23. Under Consultation6/2026/1905/EMT

    Remove 1 x WIllow

    11A Swanhill Welwyn Garden City AL7 1PB

    Received 21 Oct 2026
  24. Appeal Decided - DismissedS6/2013/2317/FP

    Erection of a replacement dwelling

    The Stables, Station Road, Brookmans Park, AL9 7SE

    Received 25 Oct 2013

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