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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
31,188Searchable applications
303Recorded as pending
87%Approval rate · 26,004 approved or refused records
3,421Refused applications

22,583 approved · 3,421 refused · 1,653 withdrawn. Received dates in our records: 29 Apr 1948 to 13 Oct 2026. Most recent record check: 19 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 Counts reflect the last collected status; some records may be out of date.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. Decided6/2025/1919/TC

    7 x Hornbeam Tree's within the boundaries of 154 Parkway. crown reduction by 25% to reduce the spread of branches currently meeting across the garden crown lifting by 10% to remove the lowest branches currently resting on and causing damage to fences tree height to be unchanged

    154 Parkway Welwyn Garden City AL8 6HZ

    Received 8 Sept 2025
  2. Decided - GrantedN6/2014/2746/FP

    Erection of a double garage following the demolition of existing double garage and erection of single storey rear and side extensions. Raising of polycarbonate roof to breakfast room and internal alterations

    8 Densley Close, Welwyn Garden City, AL8 7JX

    Received 23 Dec 2014
  3. Decided6/2025/0828/TC

    G01 Elder x 3 to prune back to boundary line; T01 Thuja to reduce height of tree by aprox 3-4m to balance canopy; and T02 Cherry to crown reduce as close to previous reduction points.

    7 to 24 Park Close Hatfield AL9 5AY

    Received 30 Apr 2025
  4. Decided6/2019/1421/TC

    Fell 3 x Leyland Cypress trees

    7 Fore Street Hatfield AL9 5AN

    Received 12 Jun 2019
  5. Decided - GrantedW6/2013/1283/EM

    Retention of rear conservatory

    3 Downfields, WELWYN GARDEN CITY, AL8 6XR

    Received 18 Jun 2013
  6. Decided - Split6/2018/2738/COND

    Submission of details pursuant to condition 12 (scheme to protect accommodation in the eastern wing from traffic noise) on planning permission 6/2016/1882/FULL

    Former Roche Products Site 40 Broadwater Road AL7 3AY

    Received 24 Oct 2018
  7. Decided - Granted6/2023/2565/FULL

    Construction of 2 infill dwellings with associated landscaping and access

    106 Harmer Green Lane Digswell Welwyn AL6 0ET

    Received 28 Dec 2023
  8. Decided - Granted6/2023/0060/HOUSE

    Roof extension and alterations, front and rear facing dormer windows

    82 Brookmans Avenue Brookmans Park AL9 7QQ

    Received 10 Jan 2023
  9. Decided - Granted6/2025/1893/FULL

    Construction and operation of a micro energy storage system with associated plinth and fencing

    Verge in highway on Great North Road Welwyn Garden City AL8 7TJ

    Received 3 Sept 2025
  10. Decided - Refused6/2020/2165/PN8

    Prior Approval for flat roof rear extension measuring 6m in depth, 3m in height and 3m to the eaves

    56 Honeysuckle Gardens Hatfield AL10 8PJ

    Received 24 Aug 2020
  11. Decided - GrantedC6/1988/1187/FP

    Extension to factory by provision of a covered yard

    Broadwater Road, Welwyn Garden City, AL7 3BQ

    Received 1 Jan 1988
  12. Decided - Granted6/2022/1691/TPO

    Common Horse Chestnut (TPO 806 G1 T37) - to fell due to disease likely a Bleeding Canker. The tree is located in a communal garden for 8 dwellings and we believe there is now a serious health and safety risk caused by sudden dropping of branches from the bough. The canopies are a little over crowded in this location of trees , so we feel that by not replacing this Horse Chestnut it will allow better health to the existing surrounding smaller trees (if necessary, open to suitable options for replanting)

    Little Guessens 6 Codicote Road Welwyn Hertfordshire AL6 9NB

    Received 18 Jul 2022
  13. Decided - Granted6/2017/1782/EM

    Erection of a single storey rear extension with flat roof, bi-fold doors and 2 rooflights following the demolition of existing store rooms, garden shed and greenhouse, and provision of rear patio and boundary screening.

    2 Parkway Close Welwyn Garden City AL8 6HJ

    Received 14 Aug 2017
  14. Decided - Granted6/2020/2565/EMT

    Fell 1 x Plum and 2 x Silver Birch to ground level

    59 The Wade Welwyn Garden City AL7 4LG

    Received 2 Oct 2020
  15. Decided - WithdrawnW6/2013/2577/EM

    Replacement windows to front elevation

    12 Walden Road, Welwyn Garden City, AL8 7PF

    Received 9 Dec 2013
  16. Decided - Granted6/2016/0607/EM

    Erection of single storey side and rear extension

    50 Great Ganett, Welwyn Garden City, AL7 3DE

    Received 31 Mar 2016
  17. Decided - Granted6/2023/2270/EM

    Erection of part single and part 2 storey rear extension with insertion of roof lantern, part garage conversion and alterations to openings on rear and side elevations

    22 Russellcroft Road Welwyn Garden City AL8 6QU

    Received 9 Nov 2023
  18. Decided - Granted6/2018/1673/LAWP

    Certificate of Lawfulness for the erection of a single storey rear extension, relocation of front entrance door and installation of front window

    6 Grove Mead, Hatfield, AL10 8DL

    Received 25 Jun 2018
  19. Decided - Granted6/2019/2926/EM

    Reduce 1 x Cotoneaster tree by 4m height & width by 2.5m

    258 Daniells Welwyn Garden City AL7 1QE

    Received 20 Nov 2019
  20. Decided - Granted6/2024/2026/EMT

    T1 1 x Cherry to remove in sections to ground level. Grind out stump to approximately 200mm below existing ground level. Too close to house and suppressing shrubbery T2 1 x Cherry to reduce by approximately 2.5m in height and 1.5m in width. This is to maintain the size of the tree

    24 Fordwich Road Welwyn Garden City AL8 6EY

    Received 21 Oct 2024
  21. Decided - GrantedN6/2013/2135/TC

    10% Crown reduction to Three oak trees

    7 Reddings, Welwyn Garden City, AL8 7LA

    Received 9 Sept 2013
  22. Decided - Granted6/2026/0680/HOUSE

    Erection of two-storey front, side and rear extensions and alterations to the roof, including a crown roof to the rear, following partial demolition of the existing dwelling. Installation of solar panels to the rear crown roof.

    40 Brookside Crescent Cuffley Potters Bar EN6 4QN

    Received 16 Apr 2026
  23. Decided - Granted6/2024/0933/HOUSE

    Installation of air source heat pump

    3 Old Dairy Yard Welwyn Garden City AL7 4BY

    Received 20 May 2024
  24. Decided - Refused6/2021/2043/PN8

    Prior approval for the erection of a single storey rear extension measuring 8m in depth, 2.78m in height and 2.48m to the eaves

    9 Codicote Road Welwyn AL6 9ND

    Received 6 Jul 2021

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

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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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