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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
40,297Searchable applications
283Recorded as pending
86%Approval rate · 33,821 approved or refused records
4,819Refused applications

29,002 approved · 4,819 refused · 2,219 withdrawn. Received dates in our records: 29 Apr 1948 to 29 Oct 2026. Most recent record check: 9 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2022/1450/EM

    Installation of solar panels

    118 Dawley Welwyn Garden City AL7 1DX

    Received 22 Jun 2022
  2. Decided - Granted6/2022/0771/EM

    Upgrade to existing driveway

    168 Parkway Welwyn Garden City AL8 6HZ

    Received 30 Mar 2022
  3. Decided - Granted6/2015/2071/EM

    Erection of wooden garden room to rear

    30 Brockswood Lane, Welwyn Garden City, AL8 7BG

    Received 5 Oct 2015
  4. Decided - Granted6/2017/0273/EM

    Erection of single storey garden studio

    11 Attimore Road Welwyn Garden City AL8 6LH

    Received 14 Feb 2017
  5. Decided - Granted6/2021/0783/EMH

    Erection of a two storey side extension

    156 Blythway Welwyn Garden City AL7 1DU

    Received 10 Mar 2021
  6. Decided - Refused6/2020/1714/HOUSE

    Erection of two storey front extension

    86 Bell Lane, Brookmans Park, Hatfield, AL9 7AY

    Received 14 Jul 2020
  7. Decided - RefusedN6/2004/0356/FP

    PART TWO STOREY PART FIRST FLOOR SIDE EXTENSION

    98 Harmer Green Lane Digswell Welwyn AL6 0ES

    Received 10 Mar 2004
  8. Decided - Granted6/2016/1297/TPO

    Reduce and shape Ash tree by 20%, Sycamore tree by 50% and Yew tree by 30% - Conservation Area

    Wytmead, Essendon Hill, Essendon, Hatfield, AL9 6AW

    Received 28 Jun 2016
  9. Decided - GrantedN6/2014/2056/FP

    Erection of single storey side and rear extensions

    14 Great Ley, Welwyn Garden City, AL7 4TR

    Received 17 Sept 2014
  10. Decided - GrantedW6/2007/0393/EM

    ERECTION OF REAR CONSERVATORY.

    54 Guessens Road, Welwyn Garden City, AL8 6RH

    Received 8 Mar 2007
  11. Decided6/2025/1880/TC

    1 x Red Oak Tree to be cut back by 30% 1 x Horse Chestnut Tree to be cut back by 30%

    6 Brockett Close Welwyn Garden City AL8 7BN

    Received 2 Sept 2025
  12. Decided - Granted6/2021/1677/HOUSE

    Change of use of land and buildings for equestrian purposes including the provision of an all-weather surface to an area of paddock, Removal of 1 x door and insertion of roof windows in existing barn.

    Ayot Farm Bibbs Hall Lane Welwyn AL6 9BY

    Received 25 May 2021
  13. Decided - GrantedS6/2004/0223/FP

    ERECTION OF SINGLE STOREY REAR EXTENSION

    117 Hatfield Road Little Heath Potters Bar EN6 1HZ

    Received 11 Feb 2004
  14. Decided - GrantedW6/2008/0619/EM

    ERECTION OF GARDEN SHED

    52 BROCKSWOOD LANE, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7BG

    Received 25 Mar 2008
  15. Decided - GrantedN6/2014/0658/HH

    Prior approval of single storey rear extension

    7A Cob Lane Close Digswell Welwyn AL6 0DD

    Received 2 Apr 2014
  16. Decided - Granted6/2021/2224/HOUSE

    Erection of a single storey side extension

    1 Church Lane Northaw Potters Bar EN6 4NX

    Received 23 Jul 2021
  17. Decided - GrantedW6/2004/0160/EM

    ERECTION OF SINGLE STOREY REAR EXTENSION

    35 Holwell Road, Welwyn Garden City, AL7 3RE

    Received 3 Feb 2004
  18. Decided6/2018/0277/TPO

    Remove 2 x Leylandii trees (T1 and T2) - Conservation area

    6 Honeycroft Welwyn Garden City AL8 6HR

    Received 29 Jan 2018
  19. Decided - Refused6/2020/2731/LAWP

    Certificate of lawfulness for the erection of an outbuilding with dual pitched roof

    Clematis Cottage Ayot Little Green Lane Ayot St Peter Welwyn AL6 9BD

    Received 20 Oct 2020
  20. DecidedS6/2013/2039/DS

    Discharge of condition 3 (Materials) of planning permission S6/2012/1210/FP - Erection of single storey rear extension

    33 Stockbreach Road, Hatfield, AL10 0BB

    Received 30 Sept 2013
  21. Decided - Granted6/2018/0232/COND

    Submission of details pursuant to condition 1 (materials samples) on planning permission 6/2017/2623/HOUSE.

    7 Little Youngs Welwyn Garden City AL8 6SL

    Received 16 Jan 2018
  22. Decided - Granted6/2025/1007/LAWP

    Certificate of lawfulness for hip to gable loft conversion with rear dormer and rooflights to the front

    15 Theobalds Close Cuffley Potters Bar EN6 4HH

    Received 29 May 2025
  23. Decided - Refused6/2020/1305/PN8

    Prior approval for the erection of a single storey rear extension measuring 8 metres in depth, 2.8 metres in height and 2.8 metres to the eaves

    7 Rosecroft Lane Welwyn AL6 0UB

    Received 9 Jun 2020
  24. Decided - GrantedW6/2008/1439/EM

    ERECTION OF TWO STOREY REAR EXTENSION FOLLOWING DEMOLITION OF EXISTING SINGLE STOREY REAR EXTENSION AND FORMATION OF HARDSTANDING TO THE FRONT DRIVE

    25 BLAKEMERE ROAD, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7PQ

    Received 15 Aug 2008

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.

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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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