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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28,849 approved · 4,801 refused · 2,206 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2022/2477/HOUSE

    Erection of a first floor side extension, a rear side infill extension and front porch with conversion of garage into habitable space

    10 Cooks Way Hatfield AL10 8XT

    Received 28 Oct 2022
  2. Decided - GrantedN6/2004/0912/LU

    GARAGE AND POOL ENCLOSURE.

    12 Wilshere Road Welwyn AL6 9PX

    Received 15 Jun 2004
  3. Decided - Granted6/2022/0513/EMT

    1 x Lawson Cypress to fell to ground level.

    14 Lumbards Welwyn Garden City AL7 1PQ

    Received 3 Mar 2022
  4. Decided - GrantedW6/2015/0502/EM

    Garage conversion to utility and study rooms

    2 Beehive Green, Welwyn Garden City, AL7 4BE

    Received 6 Mar 2015
  5. Decided - RefusedN6/2014/0840/LUP

    Certificate of lawfulness for loft conversion with altered roof, side and rear single storey extensions, new porch and new front hardstanding.

    7 Rosecroft Lane Welwyn AL6 0UB

    Received 14 Apr 2014
  6. Decided - Granted6/2022/1865/HOUSE

    Replacement of existing window

    4 Walden Place Welwyn Garden City AL8 7PG

    Received 9 Aug 2022
  7. Decided - Granted6/2020/0878/FULL

    Change of use of agricultural land to access for existing stables and retention of the hardsurfaced access track following the existing track of road planings being altered to include a centre grass strip (part-retrospective)

    Land off Hawkshead Road, Brookmans Park, Hatfield

    Received 15 Apr 2020
  8. Decided - GrantedW6/2006/0118/EM

    FIRST FLOOR REAR AND SINGLE STOREY SIDE EXTENSION AND NEW ROOFLIGHT

    7 Attimore Close, Welwyn Garden City, AL8 6LN

    Received 30 Jan 2006
  9. Decided - GrantedC6/1988/0219/FP

    Single storey rear extension

    10 Little Youngs, Welwyn Garden City, AL8 6SL

    Received 1 Jan 1988
  10. Decided - Granted6/2023/2134/EM

    Erection of new shed

    38 Barleycroft Road Welwyn Garden City AL8 6JU

    Received 19 Oct 2023
  11. Decided - Granted6/2021/2519/COND

    Submission of details pursuant to condition 27 (travel plan), on planning permission 6/2019/1067/MAJ

    Hill-Top Neighbourhood Centre Hatfield AL10 8HZ

    Received 27 Aug 2021
  12. Decided - Granted6/2015/1612/TC

    Reduce Cherry tree located in rear garden by up to 35%

    2 The Lawns Welwyn Garden City AL8 7HU

    Received 29 Jul 2015
  13. Decided - GrantedN6/2009/1455/TP

    REMOVAL OF CYPRESS TREE COVERED BY TPO 24 A3

    10 Mardley Avenue Welwyn AL6 0UD

    Received 13 Jul 2009
  14. Decided - GrantedW6/2013/2541/EM

    Erection of single storey side extension

    171 Howlands, Welwyn Garden City, AL7 4RL

    Received 29 Nov 2013
  15. Decided - WithdrawnS6/2008/0443/FP

    ERECTION OF TWO STOREY SIDE EXTENSION

    44 WILD HILL, HATFIELD, HERTFORDSHIRE, AL9 6DS

    Received 28 Feb 2008
  16. Decided - Granted6/2021/2199/EMH

    Demolition of attached outbuilding and the erection of a single storey side extension and a single storey, part two storey rear extension and alterations to fenestration at first floor level

    40 Homestead Lane Welwyn Garden City AL7 4NF

    Received 20 Jul 2021
  17. Decided - GrantedN6/2004/0237/FP

    CHANGE OF USE OF AMENITY LAND AND CONSTRUCTION OF NEW GARAGE AND NEW 2M PERIMETER WALL

    121 Howlands Welwyn Garden City AL7 4RL

    Received 18 Feb 2004
  18. Decided - Granted6/2018/1678/COND

    Submission of details pursuant to condition 3 (Bat mitigation strategy) on planning permission 6/2018/0457/HOUSE

    35 Carbone Hill Northaw Potters Bar EN6 4PN

    Received 25 Jun 2018
  19. DecidedN6/2008/1381/TE

    REMOVAL OF LEYLANDII FROM REAR OF PROPERTY

    57 Marsden Road Welwyn Garden City AL8 6YH

    Received 8 Aug 2008
  20. Decided - Granted6/2021/0497/PN8

    Prior approval for the erection of a single storey rear extension measuring 6m in depth, 3.0m in height and 3.0m to the eaves

    23 Stockbreach Road Hatfield AL10 0BB

    Received 15 Feb 2021
  21. Decided - Granted6/2021/1848/EMH

    Erection of a first floor side extension including 1 x front facing dormer window and 1 x rear facing dormer window, insertion of 2 x front facing dormer windows to existing roof and garage conversion with insertion of 1 x window to front elevation.

    48 Peartree Lane Welwyn Garden City AL7 3UD

    Received 15 Jun 2021
  22. Decided - Granted6/2017/0127/TPO

    Crown reduce two sweet chestnut trees by 30%

    5 Pine Crest Welwyn AL6 0EQ

    Received 24 Jan 2017
  23. Decided - Granted6/2017/0338/FULL

    Relocation of an existing refuse enclosure, (bin store) and formation of a new enclosure to accommodate an emergency power back-up generator.

    Unit 3 Trident Place Mosquito Way Hatfield AL10 9BW

    Received 22 Feb 2017
  24. Decided - WithdrawnN6/2006/1553/FP

    ERECTION OF FIVE NEW KEY WORKER FLATS (AMENDMENT TO EXISTING PLANNING APPROVAL N6/2005/1026/FP)

    Queen Elizabeth II Hospital Howlands Welwyn Garden City AL7 4HQ

    Received 16 Nov 2006

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

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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

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    Planning application documents: what to read first

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  • 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.

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  • 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.

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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.

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