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
40,146Searchable applications
300Recorded as pending
86%Approval rate · 33,676 approved or refused records
4,802Refused applications

28,874 approved · 4,802 refused · 2,208 withdrawn. Received dates in our records: 29 Apr 1948 to 26 Oct 2026. Most recent record check: 1 Nov 2026. Counts reflect the last collected status; some records may be out of date.

Local planning information

Council sources checked 14 Sept 2026

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 - Granted6/2016/0388/HOUSE

    Conversion of garage into a habitable room, together with alterations to the front elevation

    6 Lords Wood, Welwyn Garden City, AL7 2HF

    Received 2 Mar 2016
  2. Decided - Refused6/2021/1486/FULL

    Erection of an attached 2 storey, 2 bed dwelling, demolition of detached garage and alterations to front elevation openings of existing property.

    10 Thrush Avenue Hatfield AL10 8QU

    Received 11 May 2021
  3. Decided - Granted6/2018/1600/LAWP

    Certificate of lawfulness for erection of a single storey rear extension

    12 Carvers Croft Woolmer Green Knebworth SG3 6LX

    Received 15 Jun 2018
  4. Decided - RefusedS6/2007/0263/LU

    CERTIFICATE OF LAWFULNESS FOR RETENTION OF, AND CONTINUED USE OF THE BUILDING KNOWN AS 'MINI GLEN' AS A DWELLING

    Mini Glen Vineyards Road Northaw Potters Bar EN6 4PF

    Received 19 Feb 2007
  5. Decided - Granted6/2022/1178/EM

    Formation of driveway back to its original condition with matching materials

    68 Newfields, Welwyn Garden City, AL8 6YT

    Received 23 May 2022
  6. Decided - Granted6/2016/1367/TPO

    Oak tree (T1) Fell due to large wound to field side making tree unbalanced over roadway covered by TPO 17 (1973)

    Royal Veterinary College, Hawkshead Lane, North Mymms, Hatfield, AL9 7TA

    Received 5 Jul 2016
  7. Decided - Granted6/2021/0200/HOUSE

    Erection of outbuilding to rear of property

    7 Hall Grove Welwyn Garden City AL7 4PJ

    Received 22 Jan 2021
  8. Appeal Decided - Allowed6/2019/0270/HOUSE

    Erection of single storey first floor side extension, with front porch and garage canopy

    9 The Drive Welwyn AL6 0TW

    Received 6 Feb 2019
  9. Decided - GrantedS6/2006/0555/FP

    ERECTION OF EIGHT POLE MOUNTED AND FOUR WALL MOUNTED CLOSED CIRCUIT TELEVISION (CCTV) CAMERAS

    Zenith Court Building 4 Bishops Square Business Park Hatfield AL10 9NE

    Received 28 Apr 2006
  10. Decided - Granted6/2017/1239/TPO

    Reduce Oak tree by upto 3 metres - Conservation Area

    36 Woodland Rise Welwyn Garden City AL8 7LF

    Received 7 Jun 2017
  11. Decided - Granted6/2017/1958/EM

    Extension to existing driveway, part removal of hedge and replacement fence

    42 Elm Gardens Welwyn Garden City AL8 6RY

    Received 25 Aug 2017
  12. Decided - Granted6/2023/1514/TPO

    • T3 – Willow – Reduce by 30% • T4 – Ash – Fell to ground level • T5 – Cherry – Reduce by 30% • T7 – Ash – Fell to ground level • T8 – Cherry – Reduce by 30% • T34 – Plum – Fell to ground level • T35 – Oak – Remove major dead wood • T43 – Ash – Fell to ground level • T44 – Ash – Fell to ground level • T49 – Laurel – Reduce height by 2 meters • T51 – Oak – Remove major dead wood • T52 – Oak – Remove major dead wood • T70 – Redwood – Remove major dead wood • T75 – Pine – Fell to ground level • T106 – Ash – Fell to ground level These trees have been identified on a basic survey TPO 777 (2018)

    Street Record Oakwell Drive Northaw Potters Bar EN6 4EW

    Received 19 Jul 2023
  13. Decided - Granted6/2025/2612/HOUSE

    Erection of single storey rear extension, internal alterations, new bathroom window to rear and re-position existing bedroom window and landscaping works

    14 Elmwood Welwyn Garden City AL8 6LE

    Received 23 Dec 2025
  14. Decided - GrantedN6/2013/1405/FP

    Demolition of existing detached house and erection of new dwelling house

    6 Firway Welwyn AL6 0RD

    Received 2 Jul 2013
  15. Decided - GrantedN6/2015/0600/DS

    Application for approval of details reserved by condition 3 (materials) on planning permission N6/2014/2783/FP

    29 Roundwood Drive, Welwyn Garden City, AL8 7JZ

    Received 20 Mar 2015
  16. Decided - Refused6/2018/0405/HOUSE

    Erection of two storey side extension and alterations to openings on existing rear elevation

    74 Pooleys Lane Welham Green Hatfield AL9 7LF

    Received 8 Feb 2018
  17. Decided - GrantedN6/2005/1477/FP

    ERECTION OF PART TWO STOREY PART SINGLE STOREY SIDE EXTENSION, REAR SINGLE STOREY REAR EXTENSION AND TWO STOREY FRONT EXTENSION AND PITCHED ROOF TO GARAGE (VARIATION OF PLANNING APPROVAL N6/2004/835/FP)

    10 North Ride Welwyn AL6 9RD

    Received 5 Dec 2005
  18. Decided6/2021/1034/TC

    Plum: Remove overhanging branches from neighbours' gardens Cherry: Remove overhanging branches from neighbours' gardens Willow: remove dead tree: remove

    48 Elmwood Welwyn Garden City AL8 6LE

    Received 29 Mar 2021
  19. Decided - Granted6/2018/0448/COND

    Submission of details pursuant to condition 3 (hard and soft landscaping details) on planning permission 6/2017/1705/HOUSE, dated 14/11/2017

    10 Willow Walk Welwyn AL6 9SQ

    Received 13 Feb 2018
  20. Decided - GrantedN6/2013/0060/FP

    Erection of ground floor porch, first floor side extension and ground floor rear extension and alterations to fenestration and erection of garage

    5 Dewars Close Welwyn AL6 9RR

    Received 14 Jan 2013
  21. Decided - Granted6/2017/0734/HOUSE

    Erection of single storey side and rear extension and front porch following the demolition of existing rear extension

    15 Woodland Way Welwyn AL6 0RZ

    Received 11 Apr 2017
  22. Decided - Granted6/2020/0914/HOUSE

    Erection of a single storey side and rear extension

    121 Stonecross Road Hatfield AL10 0HS

    Received 21 Apr 2020
  23. Decided - GrantedW6/2014/0495/EM

    Erection of single storey side extension

    22 Blakemere Road, Welwyn Garden City, AL8 7PJ

    Received 10 Mar 2014
  24. Decided - Granted6/2020/1173/TPO

    Fell 1 x dead Scots Pine Tree

    1 Sherrards Mansion Welwyn. AL8 7AY

    Received 26 May 2020

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

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.

  • 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.

  • 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.

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