PlanningTrack
Get started

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
22,798Searchable applications
313Recorded as pending
86%Approval rate · 18,546 approved or refused records
2,612Refused applications

15,934 approved · 2,612 refused · 1,180 withdrawn. Received dates in our records: 5 Jan 2005 to 2 Oct 2026. Most recent record check: 14 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2021/2625/TPO

    Reduce 1 x Plane tree by 30% covered by TPO

    Cavendish Place Aldykes Hatfield AL10 8FD

    Received 9 Sept 2021
  2. Decided - Granted6/2019/2398/EM

    Erection of single storey rear extension incorporating 4x roof lights and repositioning of external side door.

    180 Heronswood Road Welwyn Garden City AL7 3EU

    Received 26 Sept 2019
  3. Decided - Granted6/2026/1138/EMT

    1 x Spruce to reduce southern branches (towards property) by approximately 1.2m from branch tips, full height of the tree.

    22 Roundwood Drive Welwyn Garden City AL8 7JZ

    Received 30 Jun 2026
  4. Under Consultation6/2026/1630/EMT

    T1 Conifer - removal of the tree down to a stump

    34 Fordwich Road Welwyn Garden City AL8 6EY

    Received 17 Sept 2026
  5. Decided6/2022/1938/TC

    1 x Conifer to remove and replace the conifer tree in the front garden, approximately 3m high and 2m wide.

    15A Guessens Road Welwyn Garden City Hertfordshire AL8 6QL

    Received 18 Aug 2022
  6. Decided - Refused6/2021/3302/VAR

    Variation of condition 3 (approved plans) on planning permission 6/2020/1768/HOUSE

    57 The Ridgeway Cuffley Potters Bar EN6 4BD

    Received 23 Nov 2021
  7. Decided - Granted6/2018/3255/FULL

    Erection of a pre-delivery inspection facility (Use Class B2), together with car storage area (Use Class B8), staff car parking, cycle parking, boundary treatment, landscaping, lighting and access

    Plot 5610, Gypsy Moth Avenue, Hatfield Business Park, Hatfield, AL10 9BS

    Received 20 Dec 2018
  8. Decided - Granted6/2018/2631/FULL

    Erection of a two storey rear extension with internal and external alterations

    12 High Street Welwyn AL6 9EQ

    Received 15 Oct 2018
  9. Decided - Granted6/2018/3132/EM

    Replacement of garage door

    23 Roundwood Drive Welwyn Garden City AL8 7JZ

    Received 10 Dec 2018
  10. Decided - Refused6/2017/0159/PN8

    Prior approval for erection of a single storey rear extension 6m in depth, 3m in height and 2.56m at the eaves to include roof lantern

    6 Two Oaks Drive Welwyn AL6 0EZ

    Received 27 Jan 2017
  11. Decided - Granted6/2020/2697/COND

    Submission of details pursuant to condition 1 (external lighting) and 3 (sectional and elevational drawings) on planning permission 6/2018/3140/FULL, dated 25/03/2019

    Guessens 6 Codicote Road Welwyn AL6 9NB

    Received 16 Oct 2020
  12. Decided6/2020/2653/TPO

    Reduce 2 x Oak trees by 25% covered by conservation area

    51 Attimore Road Welwyn Garden City AL8 6LG

    Received 13 Oct 2020
  13. Decided - Granted6/2023/0690/EM

    Erection of single storey rear extension, 1st floor side extension, garage conversion with front extension, raised roof and roof lantern and alterations to openings

    366 Knightsfield, Welwyn Garden City, AL8 7NG

    Received 27 Mar 2023
  14. Decided - Granted6/2025/0608/HOUSE

    Erection of first floor side extension and alterations to fenestration

    52 Maryland Hatfield AL10 8DX

    Received 31 Mar 2025
  15. Decided6/2020/2738/TC

    Reduce crown of 1 x Scots Pine by around 1.5m height & width.

    23 Russellcroft Road Welwyn Garden City AL8 6QX

    Received 12 Aug 2020
  16. Decided - Granted6/2020/1311/HOUSE

    Erection of single storey front extension.

    Dene Hollow Great North Road Hatfield AL9 6DA

    Received 10 Jun 2020
  17. Decided - Granted6/2022/1920/HOUSE

    Installation of air source heat pump at front of property

    239 Daniells Welwyn Garden City AL7 1QD

    Received 17 Aug 2022
  18. Decided - Granted6/2024/0706/EM

    Erection of single storey rear extension, loft conversion with 2 x rear facing dormers and insertion of rooflight to existing rear facing roof following demolition of existing rear extension

    17 Longcroft Lane Welwyn Garden City AL8 6EB

    Received 15 Apr 2024
  19. Decided - Granted6/2020/1806/EMT

    B. Willow (In back garden) fell and remove. A. Leyland Cypress Hedge (In front garden) - Fell and remove. To be replaced with a slow growing hedge.

    89 Moorlands Welwyn Garden City AL7 4QQ

    Received 22 Jul 2020
  20. Decided - Granted6/2025/1716/FULL

    Installation of external dust extraction system and associated wood burning warm air heater

    157-159 Dixons Hill Road Welham Green Hatfield AL9 7JE

    Received 12 Aug 2025
  21. Under Consideration6/2025/1781/OUTLINE

    Outline permission for demolition of existing site buildings and erection of up to 37 dwellings with all matters reserved

    15 & 15a Codicote Road Welwyn AL6 9NE

    Received 21 Aug 2025
  22. Appeal Decided - Dismissed6/2026/0215/FULL

    Erection of a detached, self-build dwelling with associated access and parking

    Land adjacent 2A Whitehill Welwyn AL6 9AF

    Received 6 Feb 2026
  23. Decided6/2022/1030/TC

    1 x Eucalyptus to reduce to approximately 500mm below old pruning points.

    42 Turmore Dale Welwyn Garden City Hertfordshire AL8 6HS

    Received 3 May 2022
  24. Decided6/2024/2412/TC

    60ft Oak to reduce by 30% (approximately back to previous). Remove 8 x 30ft conifer. Mixed shrubs to remove at the back of the garden. 3 x Plum to remove by the fence. Client is planning to replant ornamental cherry tree and a Japanese maple tree

    22 Guessens Road Welwyn Garden City AL8 6RA

    Received 20 Dec 2024

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.

    UK research
    Published Updated

  • 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.

    UK research
    Published Updated

  • 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.

    UK research
    Published Updated

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.

Check collection coverage

More planning authorities in England

Browse all authorities