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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
31,047Searchable applications
303Recorded as pending
87%Approval rate · 25,876 approved or refused records
3,400Refused applications

22,476 approved · 3,400 refused · 1,646 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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. Decided - Granted6/2017/1840/PN8

    Prior approval for the erection of a single storey rear extension measuring 6m in depth, 3m in height and 3m to the eaves.

    37 Lodgefield Welwyn Garden City AL7 1SD

    Received 18 Aug 2017
  2. Decided - Granted6/2024/1941/COND

    Submission of details pursuant to condition number 3 (Materials samples),4 (Updated scheme for parking of cycles), 5 (SuDS), 20 (Materials samples), 21 (Updated scheme for parking of cyles) and 22 (SuDS) on planning permission 6/2021/2857/MAJ

    17 Tewin Road Welwyn Garden City AL7 1BD

    Received 9 Oct 2024
  3. Decided - Refused6/2015/2558/HOUSE

    Erection of two storey side extension and single storey side conservatory

    1 Hawthorns, Welwyn Garden City, AL8 7SE

    Received 24 Dec 2015
  4. Decided - Granted6/2021/1487/HOUSE

    Erection of a rear conservatory

    1 Crossway Welwyn Garden City AL8 7EB

    Received 11 May 2021
  5. Decided - Refused6/2025/1620/PN8

    Prior approval for the erection of a single storey rear extensions measuring 8m in depth, 4m in height and 2.6m to the eaves and a single storey side extension

    23 The Ridgeway Potters Bar EN6 4BB

    Received 29 Jul 2025
  6. Decided - Granted6/2025/0471/EMT

    T1; 20-meter Oak tree with visible stress and 30% dead wood. All round canopy reduction of 30%

    33 Applecroft Road Welwyn Garden City AL8 6JZ

    Received 12 Mar 2025
  7. Decided - WithdrawnS6/2013/1595/AD

    Installation of two non illuminated pole mounted free standing sign boards

    Roundabout at the junction of, A1000/Dixons Hill Road Roundabout, Brookmans Park, Hatfield, AL9 6LB

    Received 16 Jul 2013
  8. Decided - Granted6/2016/2258/ADV

    Display of Internally illuminated signage to ATM fascia, including Blue LED halo surround to the ATM.

    26 High View Hatfield AL10 8HZ

    Received 27 Oct 2016
  9. Decided - Granted6/2019/0580/FULL

    Change of use of a 6-Bedroom house in multiple occupation (C4) to a 7-bedroom house in multiple occupation (Sui Generis)

    62 Herns Lane Welwyn Garden City AL7 2AH

    Received 12 Mar 2019
  10. Decided - Withdrawn6/2019/3027/HOUSE

    Alterations to roof

    45 Hill Rise Cuffley Potters Bar EN6 4EH

    Received 29 Nov 2019
  11. Decided - Refused6/2021/0083/LAWP

    Certificate of Lawfulness for the erection of a loft conversion

    5 Great North Road Hatfield AL9 6LB

    Received 12 Jan 2021
  12. Decided - Granted6/2018/2490/EM

    Reduce 1 x Holly tree (T1) by 20 % and remove snapped branch of 1 x Silver Birch tree (T2)

    26 Longcroft Lane Welwyn Garden City AL8 6EA

    Received 1 Oct 2018
  13. Decided - Granted6/2020/1169/COND

    Submission of details pursuant to condition 1 (details of crown roof) on planning permission 6/2019/3233/HOUSE

    43 Brookmans Avenue Hatfield AL9 7QH

    Received 26 May 2020
  14. Decided - GrantedW6/2015/1449/TE

    DD Application

    21 Guessens Road, Welwyn Garden City, AL8 6QL

    Received 6 Jul 2015
  15. Decided - Granted6/2017/1187/HOUSE

    Erection of rear conservatory

    17 Twelve Acres Welwyn Garden City AL7 4TG

    Received 31 May 2017
  16. Decided - Granted6/2016/1759/EM

    Erection of a single storey front extension and a two storey rear extension following demolition of existing single storey front and rear extensions - Minor Amendments to Estate Management Consent 6/2015/1738/EM

    61 Moorlands, Welwyn Garden City, AL7 4QJ

    Received 24 Aug 2016
  17. Decided - Granted6/2021/1959/EMT

    1 x Sweet Chestnut to reduce by 30% crown volume (approx 4m height & 2.5m width). Lift to 6m above ground level. Large low limb on right hand side to remain. Lift secondary branches only.

    340 Knightsfield Welwyn Garden City AL8 7NQ

    Received 28 Jun 2021
  18. Decided - Granted6/2018/2452/HOUSE

    Erection of single storey rear and two storey side extension and installation of replacement rear terrace

    11 Cherry Croft Welwyn Garden City AL8 7QU

    Received 25 Sept 2018
  19. Decided - Granted6/2024/2146/EMT

    Reduce apple tree by 25% Reduce Plum tree by 2-3 metres

    54 Brockswood Lane Welwyn Garden City AL8 7BG

    Received 7 Nov 2024
  20. Decided - GrantedC6/1988/0619/FP

    First floor side extension

    29 Windhill, Welwyn Garden City, AL7 1RH

    Received 1 Jan 1988
  21. Decided - Granted6/2017/1803/TPO

    Removal of one trunk on Hazel tree - Conservation Area

    60 Bridge Road Welwyn Garden City AL8 6UR

    Received 7 Aug 2017
  22. Decided - Granted6/2015/2246/TPO

    DD Application - Removal of Oak tree covered by TPO 69.

    13 Oak Piece Welwyn AL6 0XE

    Received 29 Oct 2015
  23. Decided - Granted6/2019/2827/HOUSE

    Erection of front porch, single storey side extension, two storey side and rear extension and extension to existing front dormer

    1A Marlborough Close Welwyn AL6 0UG

    Received 8 Nov 2019
  24. Decided - Granted6/2023/0606/HOUSE

    Erection of a single storey rear extension and wood burning stove flue

    29 Beehive Lane Welwyn Garden City AL7 4BJ

    Received 17 Mar 2023

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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