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
40,154Searchable applications
303Recorded as pending
86%Approval rate · 33,677 approved or refused records
4,801Refused applications

28,876 approved · 4,801 refused · 2,208 withdrawn. Received dates in our records: 29 Apr 1948 to 26 Oct 2026. Most recent record check: 4 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2017/0274/HOUSE

    Erection of a single storey front and rear extensions, first floor front and side extensions and addition of a dormer and roof light in front roof slope

    10 Thrush Lane Cuffley Potters Bar EN6 4JU

    Received 13 Feb 2017
  2. Decided - Granted6/2017/1742/HOUSE

    Single storey rear extension and part garage conversion to habitable room. Installation of 5x roof lights

    2 Hook Lane Northaw Potters Bar EN6 4DA

    Received 7 Aug 2017
  3. Decided - Refused6/2022/2241/HOUSE

    Erection of a two storey side extension with conversion of loft into habitable space and alterations to fenestration

    78 Warrengate Road North Mymms Hatfield AL9 7TY

    Received 28 Sept 2022
  4. Decided - GrantedN6/2004/1134/FP

    ERECTION OF TWO STOREY EXTENSION TO FACILITATE CHANGE OF USE TO OFFICES, AND CREATION OF CAR PARKING AREA

    ATTIMORE BARNS, RIDGEWAY, WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 2AD

    Received 23 Jul 2004
  5. Decided - Granted6/2022/1098/HOUSE

    Installation of electronic sliding gates to front boundary of the property

    8 Welham Close Welham Green Hatfield Hertfordshire AL9 7PP

    Received 11 May 2022
  6. Decided - Withdrawn6/2022/1971/TC

    T1 oak - crown reduction by approximately 2m from branch tips to help prevent further limb failure. There has been a recent large snap out in the crown and included union on large main scaffold limb - see photos. T2 ash - crown lift to 4m.

    12 High Oaks Road Welwyn Garden City AL8 7BH

    Received 24 Aug 2022
  7. Decided - Granted6/2020/1012/EM

    Erection of outbuilding to rear garden

    79 Beehive Lane Welwyn Garden City AL7 4BN

    Received 6 May 2020
  8. Decided - GrantedN6/2005/1510/FP

    ALTERATIONS TO REAR ELEVATION TO INCLUDE NEW DOORS AND WINDOW

    11 Stonehills Welwyn Garden City AL8 6NA

    Received 6 Dec 2005
  9. Decided - RefusedN6/2008/2027/FP

    ERECTION OF REAR FIRST FLOOR STOREY EXTENSIONS

    64 & 65 Great North Road Welwyn Garden City AL8 7TL

    Received 22 Oct 2008
  10. Decided - GrantedS6/2014/0128/DS

    Discharge of condition 3 (Materials) of planning permission S6/2013/2222/FP

    2 Georges Wood Road, Brookmans Park, Hatfield, AL9 7BZ

    Received 22 Jan 2014
  11. Decided - Withdrawn6/2016/0661/COND

    Approval of details reserved by condition 7 (materials) on Estate Management consent W6/2010/0400/EM

    73 Valley Road, Welwyn Garden City, AL8 7DR

    Received 4 Apr 2016
  12. Decided - Granted6/2018/2957/COND

    Submission of details pursuant to condition 6 (SuDS Management and Maintenance Plan) on planning permission 6/2016/2675/MAJ

    Queenswood School, Shepherds Way, Brookmans Park, Hatfield, AL9 6NS

    Received 16 Nov 2018
  13. Decided - Refused6/2020/2532/COND

    Submission of details pursuant to condition 1 (surface water drainage assessment) on planning permission 6/2020/0712/VAR

    Ratcliff Tail Lifts Ltd Bessemer Road Welwyn Garden City AL7 1ET

    Received 1 Oct 2020
  14. Decided6/2023/2159/TC

    T28 English Oak to deadwood and crown clean. T42 Common Ash (at School galleon playground) to fell (Ash Dieback). T75 Sycamore deadwood and crown clean. T88 Hornbeam to fell (dead/dangerous).

    Templewood Primary School Pentley Park Welwyn Garden City AL8 7SD

    Received 23 Oct 2023
  15. Decided - GrantedW6/2013/0750/EM

    Erection of single storey side and rear extensions

    60 Lemsford Lane, WELWYN GARDEN CITY, AL8 6YJ

    Received 4 Apr 2013
  16. Decided - GrantedN6/2015/0469/FP

    Garage conversion to habitable accommodation and additional hardstanding to front.

    43 Chambers Grove, Welwyn Garden City, AL7 4FG

    Received 5 Mar 2015
  17. Decided - Granted6/2019/0155/HOUSE

    Erection of a two storey side and rear extension.

    29 New Road Knebworth SG3 6LA

    Received 25 Jan 2019
  18. Decided - Granted6/2025/1928/LAWP

    Certificate of lawfulness for the erection of a single storey rear infill flat roof extension

    28 Westland Drive Brookmans Park AL9 7UQ

    Received 8 Sept 2025
  19. Decided - GrantedW6/2013/2294/EM

    Formation of vehicle hardstanding and crossover

    254 Howlands, Welwyn Garden City, AL7 4HF

    Received 25 Oct 2013
  20. Decided - WithdrawnW6/2005/1422/EM

    ERECTION OF FRONT GATE AND FENCE

    99 Bridge Road East, Welwyn Garden City, AL7 1GL

    Received 15 Nov 2005
  21. Decided - Granted6/2021/1567/EMH

    Alterations to front driveway

    399 Howlands Welwyn Garden City AL7 4HW

    Received 17 May 2021
  22. Decided - GrantedW6/2015/0880/EM

    Erection of first floor rear extension

    14 Beehive Green, Welwyn Garden City, AL7 4BE

    Received 20 Apr 2015
  23. Decided - RefusedS6/2004/0397/FP

    ERECTION OF FRONT AND SIDE EXTENSIONS, LOFT CONVERSION AND RAISING OF ROOF.

    59 Moffats Lane Brookmans Park Hatfield AL9 7RT

    Received 17 Mar 2004
  24. Decided - Granted6/2017/1013/COND

    Submission of details pursuant to conditions 1 (materials), 5 (arboricultural statement), 6 (construction plan), 7 (acoustic fencing), 8 (cycle parking) and 10 (external lighting) on planning permission 6/2016/0345/MAJ dated 15/03/2017

    41-43 Roe Green Lane Hatfield AL10 0SH

    Received 11 May 2017

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
  • 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