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England · Local authority

Welwyn Hatfield Borough Council
Planning applications.

Explore collected planning applications and decisions for Welwyn Hatfield Borough Council. Search an address, application reference or proposal to find a record.

Collected application statistics

Collected records · All available dates
32,639Searchable applications
303Recorded as pending
87%Approval rate · 27,316 approved or refused records
3,569Refused applications

23,747 approved · 3,569 refused · 1,711 withdrawn. Received dates in our records: 29 Apr 1948 to 13 Oct 2026. Most recent record check: 20 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 Counts reflect the last collected status; some records may be out of date.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. Under Consultation6/2023/0299/COND

    Confirmation that all conditions have been discharged on planning reference 6/2016/2690/MAJ

    Flat 21 Woolworth House Bessemer Road Welwyn Garden City AL7 1GR

    Received 7 Feb 2023
  2. Decided6/2019/1954/TC

    Reduce 1x Silver Birch tree by 33%

    34 Beehive Green Welwyn Garden City AL7 4BG

    Received 7 Aug 2019
  3. Decided - GrantedN6/2013/2257/DS

    Discharge of condition 2 (levels) of planning permission N6/2013/0282/DE

    Sir Frederic Osborn School, Herns Lane, Welwyn Garden City, AL7 2AF

    Received 25 Oct 2013
  4. Decided - Refused6/2023/1130/HOUSE

    Erection of a two storey rear and side extension with roof alterations including front dormer following demolition of existing conservatory

    12 Hillside Way Welwyn Hertfordshire AL6 0TY

    Received 30 May 2023
  5. Decided - Granted6/2026/0156/HOUSE

    Erection of single storey rear extension, first floor rear extension, replacement of roof with crown roof and new dormers with alterations to openings

    8 Mannicotts Welwyn Garden City AL8 7BW

    Received 29 Jan 2026
  6. Decided - Granted6/2022/0148/HOUSE

    Erection of single storey side extension

    13 The Croft Welwyn Garden City AL7 4JY

    Received 20 Jan 2022
  7. Decided - Granted6/2017/0063/HOUSE

    Erection of part single part two-storey rear extension involving demolition of existing outbuilding

    17 Birchwood Close Hatfield AL10 0PP

    Received 16 Jan 2017
  8. Decided - Granted6/2016/1412/EM

    Reduce Eucalyptus tree by 50%

    2 Meadow Green, Welwyn Garden City, AL8 6SS

    Received 5 Jul 2016
  9. Appeal Decided - Withdrawn6/2019/1057/EM

    Erection of a single storey rear extension

    6 Whitethorn Welwyn Garden City AL7 3EX

    Received 1 May 2019
  10. Decided - Granted6/2018/2885/LB

    Erection of a new timber clad garden room to the rear garden and alterations to garage roof

    Dimsdale House Essendon Place High Road Essendon

    Received 9 Nov 2018
  11. Decided - Granted6/2024/2372/FULL

    Change of use from general amenity land to private residential driveway

    76 Lumbards Welwyn Garden City AL7 1PL

    Received 12 Dec 2024
  12. Decided - Refused6/2018/3170/HOUSE

    Erection of single storey front and side extension and part single, part two storey rear extension

    16 Roe Green Close Hatfield AL10 9PE

    Received 12 Dec 2018
  13. Decided6/2024/2160/TC

    1 x Cherry to reduce by 1.2m in height and 1.5m in width. Lift over driveway to 3.5m. Becoming too large for the space they wish to maintain size and shape

    3 Longcroft Gardens Welwyn Garden City AL8 6JR

    Received 8 Nov 2024
  14. Decided - Granted6/2018/1307/HOUSE

    Erection of a ground and first floor rear extension

    16 Melbourne Court Welwyn Garden City AL8 6LL

    Received 17 May 2018
  15. Decided - Granted6/2020/2509/LAWP

    Certificate of lawfulness for garage conversion into habitable room and change of garage door to a window

    9 Gorseway Hatfield AL10 9GS

    Received 30 Sept 2020
  16. Decided - RefusedS6/2013/1089/FP

    Retention and completion of front means of enclosure

    46 Brookmans Avenue, Brookmans Park, HATFIELD, AL9 7QJ

    Received 20 May 2013
  17. Decided - Granted6/2016/0729/TPO

    Removal of broken limbs from crown and crown reduction by 3.5m lateral length on north side of Oak tree covered by TPO 3

    34 Kingsmead, Cuffley, Potters Bar, EN6 4AN

    Received 4 Apr 2016
  18. Decided - Refused6/2024/1579/PN8

    Prior approval for single storey rear extension with a pitched to flat roof and a roof light measuring 3.75m in depth, 3.43m in height and 2.43m to the eaves

    14 The Gardens Brookmans Park AL9 7UL

    Received 20 Aug 2024
  19. Decided - Refused6/2017/1660/EM

    Erection of rear extension and conversion of existing garage

    13 Lytton Gardens, WGC, AL8 6EG

    Received 28 Jul 2017
  20. Decided - Granted6/2024/1703/HOUSE

    Erection of a single storey side extension following the demolition of existing double garage

    27 Russellcroft Road Welwyn Garden City AL8 6QX

    Received 5 Sept 2024
  21. Decided - GrantedS6/2014/1493/FP

    Erection of single storey side/rear extension

    8 Tolmers Gardens, Cuffley, Potters Bar, EN6 4JE

    Received 4 Jul 2014
  22. Decided - RefusedN6/2014/0374/LUP

    Certificate of lawfulness for the proposed erection of front porch

    7 New Road Welwyn Garden City AL8 7TX

    Received 17 Feb 2014
  23. Decided - Refused6/2021/2328/HOUSE

    Installation of a rear dormer to facilitate a loft conversion.

    Woodstock Hawkshead Road Little Heath Potters Bar EN6 1LU

    Received 5 Aug 2021
  24. Appeal Decided - Dismissed6/2018/1735/EM

    Erection of front porch to replace existing including the replacement of the existing front door

    95 Uplands Welwyn Garden City AL8 7EH

    Received 2 Jul 2018

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

View all applications

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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