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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29,002 approved · 4,819 refused · 2,219 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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. Appeal Decided - AllowedS6/2005/1352/TP

    WORKS TO YEW TREES T1 AND T2 COVERED BY TPO 264

    The Rectory 1 Fore Street Hatfield AL9 5AH

    Received 25 Oct 2005
  2. Decided - Granted6/2025/1004/EMT

    T1 Hornbeam in front garden. Reduce crown by 30% back to previous reduction and remove epicormic growth; and T2 Oak in rear garden next to house. Reduce crown by 30% back to previous reduction and remove epicormic growth.

    1 Woodland Rise Welwyn Garden City AL8 7LE

    Received 28 May 2025
  3. Decided - Refused6/2026/0700/HOUSE

    Alteration and extension to roof with the insertion of a new rooflight. Garage conversion involving the replacement of garage door with window

    24 Hawkshead Lane North Mymms AL9 7TB

    Received 20 Apr 2026
  4. Decided - Granted6/2020/2917/LAWP

    Certificate of Lawfulness for the erection of the single storey side and rear extension.

    41 The Avenue Welwyn AL6 0PW

    Received 9 Nov 2020
  5. Decided - GrantedS6/2004/0265/FP

    ERECTION OF TWO STOREY SIDE EXTENSION

    40 The Ridgeway Cuffley Potters Bar EN6 4BA

    Received 17 Feb 2004
  6. Decided - Granted6/2023/1568/LB

    Internal repairs and alterations to existing building

    Parkside Cottage 56 Mill Lane Welwyn AL6 9ES

    Received 28 Jul 2023
  7. Decided - Granted6/2025/1423/COND

    Submission of details pursuant to condition number 1 (Outline Method Statement), 2 (Biodiversity Gain Plan), 3 (Habitat Management And Monitoring Plan), 4 (Arboricultural Method Statement), 5 (Demolition Management Plan), 6 (Site Waste Management Plan), and 8 (Construction And Environment Management Plan) on planning permission 6/2024/0908/MAJ

    Norton Building Bridge Road East Welwyn Garden City AL7 1JR

    Received 4 Jul 2025
  8. Decided - Granted6/2016/1551/TPO

    Reduce three Leylandii trees (T16, T17 & T23) by 30%, Cut lower branches back on Beech tree (T14) and crown lift two Hornbeam trees by (T13 & T19) by up to 2 metres - Conservation Area

    13 Roundwood Drive, Welwyn Garden City, AL8 7JZ

    Received 1 Aug 2016
  9. Decided - RefusedS6/2014/0520/FP

    Erection of attached double garage

    4 Welham Manor, Welham Green, Hatfield, AL9 7EL

    Received 11 Mar 2014
  10. Decided - Granted6/2020/2060/PN8

    Prior approval for the erection of a single storey rear extension measuring 5m in depth, 3.4m in height and 3.0m to the eaves

    17 Meadow Dell Hatfield AL10 0SF

    Received 13 Aug 2020
  11. Decided - Granted6/2024/0796/HOUSE

    Replacement of side window and installation of 4 rooflights on existing garage

    1 The Forge Coopers Lane Northaw Potters Bar EN6 4NF

    Received 29 Apr 2024
  12. Decided - Granted6/2024/0365/LAWP

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

    5 Selwyn Crescent Hatfield AL10 9NL

    Received 26 Feb 2024
  13. Decided - GrantedW6/2007/0518/EM

    ERECTION OF SINGLE STOREY SIDE AND TWO STOREY REAR EXTENSION.

    6 The Commons, Welwyn Garden City, AL7 4RP

    Received 29 Mar 2007
  14. Decided6/2026/0257/TC

    2 x Leyland cypress to remove in sections to ground level. 1 x Hawthorn to reduce lateral branches over lawn area by around 2m.

    135 Guessens Road Welwyn Garden City AL8 6RR

    Received 13 Feb 2026
  15. Decided - Granted6/2026/1239/COND

    Submission of details pursuant to condition number 2 (Construction Traffic Management Plan) on planning permission 6/2025/2133/FULL

    58 Bell Lane Brookmans Park AL9 7AY

    Received 15 Jul 2026
  16. Decided - GrantedN6/2009/0370/LB

    ERECTION OF FRONT PORCH AND FORMATION OF BASEMENT

    Melbourne Stud Waterend Lane Ayot St Peter Welwyn AL6 9BB

    Received 24 Feb 2009
  17. Decided - WithdrawnW6/2008/2066/EM

    EXTENSIONS AND ALTERATIONS TO EXISTING BUNGALOW TO CREATE A TWO STOREY DWELLING

    4A BROCKET ROAD, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7TY

    Received 30 Oct 2008
  18. Decided - GrantedS6/2008/0528/FP

    INSTALLATION OF SIDE DORMER WINDOW

    14 NORTHAW ROAD EAST, CUFFLEY, POTTERS BAR, HERTFORDSHIRE, EN6 4LT

    Received 7 Mar 2008
  19. Decided - GrantedN6/2007/0761/FP

    ERECTION OF TWO STOREY REAR EXTENSION AND SINGLE STOREY SIDE AND REAR EXTENSIONS

    33 Knightsfield Welwyn Garden City AL8 7JE

    Received 17 May 2007
  20. Decided - GrantedN6/2013/2345/TC

    Removal of Ash and Oak tree and removal of Ash stump

    Ayot St Lawrence Church, Bibbs Hall Lane, Ayot St Lawrence, Welwyn, AL6 9BZ

    Received 1 Nov 2013
  21. Decided - Granted6/2016/1187/EM

    Erection of two storey side extension and installation of dormer window and rooflight

    51 Peartree Lane, Welwyn Garden City, AL7 3UA

    Received 15 Jun 2016
  22. Decided - Granted6/2022/2437/HOUSE

    Erection of single storey front and 2 storey side & rear extension

    37 Meadway Welwyn Garden City AL7 4NQ

    Received 20 Oct 2022
  23. Decided - GrantedW6/2015/0775/TE

    Removal of Ash tree from rear garden

    34 Guessens Road, Welwyn Garden City, AL8 6RA

    Received 9 Apr 2015
  24. Decided - Granted6/2025/1986/HOUSE

    Erection of two storey front and rear extensions, first floor side extension, roof replacement with front and rear dormers and front boundary wall and gates

    141 Tolmers Road Cuffley Potters Bar EN6 4JW

    Received 15 Sept 2025

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

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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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