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
40,118Searchable applications
300Recorded as pending
86%Approval rate · 33,650 approved or refused records
4,801Refused applications

28,849 approved · 4,801 refused · 2,206 withdrawn. Received dates in our records: 29 Apr 1948 to 26 Oct 2026. Most recent record check: 30 Oct 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 Counts reflect the last collected status; some records may be out of date.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 - GrantedN6/2013/1963/LUP

    Erection of single storey side and rear extensions

    27 The Avenue Welwyn AL6 0PW

    Received 30 Sept 2013
  2. Decided - GrantedS6/2014/1564/FP

    Seperation of unlisted number 15 park street from listed building 7-11 Park Street to create a new dwelling, and installation of gate access to wall and fence

    7-15 Park Street, Hatfield, AL9 5AT

    Received 7 Jul 2014
  3. Decided - GrantedN6/2013/0519/DS

    Discharge of condition 6 (Parking Layout) from planning permission N6/2013/1935/FP

    49 Mardley Hill Welwyn AL6 0TT

    Received 4 Mar 2013
  4. Decided - Refused6/2017/2309/PN8

    Prior approval for the erection of a single storey rear extension measuring 6m in depth, 3m in height and 3m to the eaves

    8 Cecil Crescent Hatfield AL10 0HF

    Received 9 Oct 2017
  5. Decided - RefusedS6/2008/0627/FP

    CHANGE OF USE FROM SUI GENERIS AND EXTENSION TO FORM RESTAURANT AND BAR

    ASTWICK MANOR FARM, MANOR ROAD, HATFIELD, HERTFORDSHIRE, AL10 9BJ

    Received 21 Mar 2008
  6. Decided - Granted6/2018/0869/LAWP

    Certificate of lawfulness for a loft extension to facilitate conversion to habitable space including installation of dormer to rear elevation and 3 x front roof lights to principal elevation

    92 Sweet Briar Welwyn Garden City AL7 3EA

    Received 3 Apr 2018
  7. Decided - Granted6/2021/2450/FULL

    Change of use from a former bank (Class E) to an adult gaming centre (AGC) (Sui Generis) including advertisement consent for 2 no. Internally illuminated fascia sign and 1 no. internally illuminated projecting sign

    33 Town Centre Hatfield AL10 0JX

    Received 23 Aug 2021
  8. Decided - GrantedS6/2013/0884/FP

    Erection of single storey side extension and alterations to the roof of the existing garage

    17 Pine Grove, Brookmans Park, HATFIELD, AL9 7BP

    Received 24 Apr 2013
  9. Decided - GrantedW6/2009/0162/EM

    RAISING THE ROOF HEIGHT OF THE SIDE ELEVATION AND REPLACEMENT OF SIDE DOOR WITH WINDOW, AND REPLACEMENT OF REAR PATIO DOORS WITH FRENCH DOORS

    5 Little Youngs, Welwyn Garden City, AL8 6SL

    Received 29 Jan 2009
  10. Decided - GrantedN6/2014/0576/FP

    Erection of single storey rear extension

    35 Middlefield, Welwyn Garden City, AL7 4DQ

    Received 18 Mar 2014
  11. Decided - GrantedW6/2010/0160/EM

    REMOVAL OF EXISTING OPEN PORCH AND ERECTION OF ENCLOSED SINGLE STOREY PORCH TO FRONT ENTRANCE

    122 THISTLE GROVE, WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 4AQ

    Received 29 Jan 2010
  12. Decided - SplitN6/2015/1431/TP

    Reduce Hornbeam tree by 20%, re pollard second Hornbeam tree and removal of Oak tree, covered by TPO338

    22 Bracken Lane Welwyn AL6 0RB

    Received 6 Jul 2015
  13. Decided - Granted6/2023/1138/EM

    Hardstanding in front garden to add vehicle parking

    5 Heather Road Welwyn Garden City AL8 6XX

    Received 30 May 2023
  14. Decided - GrantedN6/2014/1020/S73A

    Variation of condition 2 (plans) of planning permission N6/2013/0341/FP - Re-development of site to provide 7 dwellings

    Welwyn Car Repairs Ltd, Moorlands, Welwyn Garden City, AL7 4PW

    Received 12 May 2014
  15. Decided - GrantedN6/2013/2385/FP

    Erection of single storey rear extensions including basement and conversion of existing garage to habitable accommodation. Demolition of existing structures in rear garden and erection of new outbuilding and new vehicular access from Vera Lane

    5 Pennyfathers Lane Welwyn AL6 0EN

    Received 12 Nov 2013
  16. Decided - Granted6/2016/1600/LB

    External refurbishment comprising replacing clay chimney pots where defective and repair with replacement where necessary, the slate tile roof

    Oshwal Centre, Coopers Lane Road, Northaw, Potters Bar, EN6 4DG

    Received 4 Aug 2016
  17. Decided - GrantedW6/2009/1665/EM

    EXTENSION TO DRIVEWAY

    34 DIGSWELL ROAD, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7PA

    Received 3 Aug 2009
  18. Decided - GrantedN6/2004/1059/FP

    ERECTION OF PART SINGLE STOREY AND PART TWO STOREY SIDE EXTENSION, SINGLE STOREY FRONT EXTENSION, REPLACEMENT GARAGE AND ACCESS

    1 Kimpton Road Welwyn AL6 9NJ

    Received 12 Jul 2004
  19. Decided - GrantedN6/2005/1437/LB

    INTERNAL ALTERATIONS TO TOILET WITHIN LISTED BUILDING

    15 Church Street Welwyn AL6 9LN

    Received 17 Nov 2005
  20. Decided - Granted6/2018/0578/EM

    Fell 1 x Conifer tree

    35 Pinewood Welwyn Garden City AL7 3TL

    Received 28 Feb 2018
  21. Decided - GrantedW6/2009/1560/EM

    FORMATION OF VEHICLE HARDSTANDING

    191 BOUNDARY LANE, WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 4EJ

    Received 20 Jul 2009
  22. Decided - Granted6/2025/0862/EM

    Replacement of windows (similar style) to improve insulation and change of colour of front door (from blue) and garage door (from faded red) to white, in keeping with other properties in the EMS

    59 Woodland Rise Welwyn Garden City AL8 7LJ

    Received 8 May 2025
  23. Decided - Granted6/2016/0157/HOUSE

    Erection of single storey rear extension

    28 Roe Green Lane, Hatfield, AL10 0RZ

    Received 1 Feb 2016
  24. Decided - Granted6/2017/1472/EM

    Erection of a ground floor and part first floor rear extension

    9 Corn Mead Welwyn Garden City AL8 7QR

    Received 5 Jul 2017

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