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
40,250Searchable 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28,934 approved · 4,812 refused · 2,213 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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
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 - GrantedS6/2007/1268/FP

    CONVERSION OF REDUNDENT PIG PEN TO HOLIDAY LET COTTAGE

    POSTERN GATE FARM, NEWGATE STREET VILLAGE, HERTFORD, HERTFORDSHIRE, SG13 8QR

    Received 22 Aug 2007
  2. Decided6/2017/2816/TPO

    Prune 1 x Silver Birch (T1) to thin crown to remove approx 15% of live branches, reduce crown spread towards house by approx 1-2m with most thinning cuts between 1-2cm. Prune 1 x Silver Birch (T2) to reduce crown height by approx 2-3m and reduce crown spread by approx 1-2m - Conservation Area

    31 Digswell Road Welwyn Garden City AL8 7PB

    Received 1 Dec 2017
  3. Decided - GrantedS6/2015/0378/FP

    Erection of front extension, conversion of garage to habitable room, extension to existing side dormer and alterations to rear elevation fenestration

    25 Georges Wood Road, Hatfield, AL9 7BY

    Received 25 Feb 2015
  4. Decided - Granted6/2016/0280/EM

    Erection of proposed ground floor rear extension and new W.C. window to rear elevation following demolition of attached outhouse

    38 Sherrardspark Road, Welwyn Garden City, AL8 7LB

    Received 18 Feb 2016
  5. Decided - GrantedW6/2004/1080/EM

    INSTALLATION OF TWO ROOFLIGHTS TO REAR OF PROPERTY

    79 Valley Road, Welwyn Garden City, AL8 7DR

    Received 14 Jul 2004
  6. Decided - Granted6/2020/1664/TPO

    Tree works outlined within the attached works schedule TPO 780 (2018)

    Trees surrounding the Ringway depot located off Broadwater Road.

    Received 10 Jul 2020
  7. Decided - Granted6/2026/0491/HOUSE

    Erection of a single storey rear extension with 8 solar panels

    10 Graysfield Welwyn Garden City AL7 4BL

    Received 17 Mar 2026
  8. Decided - Granted6/2019/0095/LAWP

    Certificate of lawfulness for conversion of retail storage space at first floor to 2x dwellings

    41-43 Town Centre, Hatfield, AL10 0JJ

    Received 18 Jan 2019
  9. Under Consideration6/2026/1600/EM

    Replacement front and back doors to improve security and insulation

    260 Heronswood Road Welwyn Garden City AL7 3JQ

    Received 14 Sept 2026
  10. Decided - Refused6/2020/3143/LAWP

    Certificate of lawfullness for proposed single-storey outbuildings

    84 Warrengate Road North Mymms Hatfield AL9 7TY

    Received 24 Nov 2020
  11. Decided - Granted6/2022/2154/TPO

    TPO group 639 (2017) G1 Prune two 2 x hornbeam trees by 25%

    8 Bluebells Welwyn AL6 0XD

    Received 15 Sept 2022
  12. Decided - GrantedW6/2013/1822/TE

    Removal of Two Fir trees

    92 Uplands, WELWYN GARDEN CITY, AL8 7EQ

    Received 5 Jul 2013
  13. Decided - Refused6/2018/2006/LAWE

    Certificate of lawfulness for existing erection of outbuilding

    84 High Dells Hatfield AL10 9HU

    Received 30 Jul 2018
  14. Decided - Granted6/2016/0867/LB

    Removal of porch extension, alterations to windows and doors, new single storey extension, internal alterations including reconfigured ensuite layouts

    Stocking Lane Cottage, Hill Farm Lane, Welwyn, AL6 9BW

    Received 5 May 2016
  15. Decided - GrantedN6/2013/1750/FP

    Erection of single storey rear extension

    71 Lords Wood, Welwyn Garden City, AL7 2HG

    Received 12 Aug 2013
  16. Decided - Granted6/2024/2237/VAR

    Variation of Condition 6 (Drawing numbers) on planning permission 6/2023/0677/FULL

    Land adjacent to The Warren 8 Carbone Hill Northaw Potters Bar EN6 4PL

    Received 21 Nov 2024
  17. Decided - Granted6/2024/0758/FULL

    Retention of outdoor seating area

    41 Mardley Hill Welwyn AL6 0TT

    Received 24 Apr 2024
  18. Decided - Granted6/2016/2706/MAJ

    Erection of 6 dwellings and a building for use as an indoor riding school following demolition of existing buildings forming Ponsbourne Riding School

    Ponsbourne Riding School Newgate Street Hertford SG13 8QS

    Received 21 Dec 2016
  19. Decided - Granted6/2018/0442/EM

    Widen existing driveway - retrospective

    107 Uplands Welwyn Garden City AL8 7EH

    Received 13 Feb 2018
  20. Decided - Granted6/2022/0678/EM

    Erection of single storey side and rear extensions, with insertion of roof light, 2 storey rear extension with alterations to openings

    178 Heronswood Road Welwyn Garden City AL7 3EU

    Received 22 Mar 2022
  21. Decided - Granted6/2024/0473/HOUSE

    Erection of front porch

    4 Lancaster Way Welwyn AL6 9LD

    Received 11 Mar 2024
  22. Decided - GrantedN6/2008/1398/FP

    REPLACEMENT OF WINDOW WITH NEW ENTRANCE DOOR AND ACCESS RAMP TO FRONT ELEVATION. INSTALLATION OF NEW DOOR TO REAR ELEVATION, FOLLOWING REMOVAL OF EXISTING WINDOW

    ROSANNE HOUSE, GROUND FLOOR, WEST WING, PARKWAY, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 6HG

    Received 8 Aug 2008
  23. Decided - GrantedN6/2007/0854/FP

    ERECTION OF REAR CONSERVATORY

    12 Coltsfoot Welwyn Garden City AL7 3HZ

    Received 6 Jun 2007
  24. Decided - Granted6/2016/0111/HOUSE

    Erection of two storey rear extension, first floor side extension over double garage and new dormer window to front

    2 The Drive Welwyn AL6 0TR

    Received 21 Jan 2016

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