PlanningTrack
Get started

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29,002 approved · 4,819 refused · 2,219 withdrawn.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: 8 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 Counts reflect the last collected status; some records may be out of date.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. Decided - Granted6/2017/0631/TPO

    Crown reduce Silver Birch tree (T1) and Horse Chestnut tree (T2) by upto 40% plus removal of Horse Chestnut (T3) - Conservation Area

    18 Walden Place Welwyn Garden City AL8 7PG

    Received 22 Mar 2017
  2. Decided - Granted6/2015/2209/HOUSE

    Erection of single storey side extension

    1 Fearnley Road, Welwyn Garden City, AL8 6HW

    Received 28 Oct 2015
  3. Decided - Granted6/2018/1400/HOUSE

    Erection of single storey rear extension

    4 River View Welwyn Garden City AL7 1UA

    Received 24 May 2018
  4. Decided - RefusedN6/2014/0591/LUP

    Certificate of lawfulness for erection of side conservatory

    8 Willow Walk Welwyn AL6 9SQ

    Received 19 Mar 2014
  5. Decided - GrantedN6/2014/0845/LB

    Draught stripping to windows

    6 Hobbs Hill Welwyn AL6 9DS

    Received 14 Apr 2014
  6. Decided - Granted6/2024/1842/EM

    Part single, part two storey rear extension, part demolition of existing garage, alterations to openings and extension to driveway

    29 Brockswood Lane Welwyn Garden City AL8 7BE

    Received 25 Sept 2024
  7. Decided - Granted6/2024/2383/FULL

    Erection of a part single, part two-storey front extension and two single-storey rear extensions to facilitate the conversion of the existing dwelling into 3 self-contained flats

    16 Cobmead Hatfield AL10 0JF

    Received 13 Dec 2024
  8. Decided - GrantedN6/2004/0067/FP

    ERECTION OF REAR CONSERVATORY

    16 Warren Dale Welwyn Garden City AL8 7HN

    Received 19 Jan 2004
  9. Decided - Withdrawn6/2025/0318/TC

    Weeping Willow tree reduce height by 1/3 and tidy up.

    315 Knightsfield Welwyn Garden City AL8 7NJ

    Received 19 Feb 2025
  10. Decided - GrantedC6/1987/0765/FP

    Single storey side extension following demolition of existing timber lean-to

    The Hollies, West End Lane, Hatfield, AL9 6AT

    Received 1 Jan 1987
  11. Decided - GrantedN6/2007/0748/AD

    INSTALLATION OF 1No. EXTERNALLY ILLUMINATED FASCIA SIGN AND 1No. INTERNAL FASCIA SIGN

    MARKS AND SPENCER PLC, THE HOWARD CENTRE, STONEHILLS, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 6NA

    Received 15 May 2007
  12. Decided - Granted6/2023/2420/HOUSE

    Erection of two storey side/ rear extension with rooflight, installation of flue and enlargement of porch

    56 College Lane Hatfield AL10 9PQ

    Received 1 Dec 2023
  13. Decided - Granted6/2024/0273/TPO

    1 x Walnut to reduce by around 20% crown volume (approximately 2m in height and width). Previous pruning points. Maintenance of tree size. TPO 815 (2018) T1

    2 Green End Welwyn AL6 9QF

    Received 9 Feb 2024
  14. Decided - Granted6/2016/0197/HOUSE

    Erection of single storey side extension

    27 Wheatley Road, Welwyn Garden City, AL7 3LL

    Received 5 Feb 2016
  15. Decided - Granted6/2023/0160/FULL

    Retention of the change of use of a dwelling (C3) to a small 4-bedroom HMO (C4)

    41 Lark Rise Hatfield AL10 8RN

    Received 23 Jan 2023
  16. Decided - GrantedS6/2008/0568/FP

    DEMOLITION OF CONSERVATORY AND ERECTION OF GARDEN ROOM

    WEST LOW LODGE, HOLWELL LANE, ESSENDON, HATFIELD, HERTFORDSHIRE, AL9 5RF

    Received 13 Mar 2008
  17. Decided - RefusedN6/2014/0791/FP

    Change of use of existing building to a single residential dwelling (Class C3)

    Land adjacent to 22 The Avenue Welwyn AL6 0PP

    Received 9 Apr 2014
  18. Decided - GrantedS6/2009/1002/FP

    ERECTION OF TWO STOREY REAR EXTENSION AND REPLACEMENT GARAGE

    1 MOFFATS LANE, BROOKMANS PARK, HATFIELD, HERTFORDSHIRE, AL9 7RX

    Received 11 May 2009
  19. Decided - Withdrawn6/2025/2333/LB

    Repair rear pitch of existing roof over kitchen area, proposed damp protection measures to internal walls and repair of spalled external bricks

    Mill Green 5 Mill Green Cottages Bush Hall Lane Hatfield AL9 5PB

    Received 5 Nov 2025
  20. Decided - Granted6/2024/1671/COND

    Submission of details pursuant of conditions 2d & 25d (Reporting of unexpected contamination) on planning permission 6/2019/3024/MAJ

    29 Broadwater Road Welwyn Garden City AL7 3BQ

    Received 2 Sept 2024
  21. Decided - Granted6/2015/2389/FULL

    Change of use from dwelling house to dwelling house and childminding services for the care of up to eight children

    10 Swanley Bar Lane, Little Heath, Potters Bar, EN6 1NP

    Received 26 Nov 2015
  22. Decided6/2018/2633/TPO

    Fell 1x unknown species DD Conservation area

    9 Lytton Gardens Welwyn Garden City AL8 6EG

    Received 15 Oct 2018
  23. Decided - GrantedC6/1987/0752/FP

    Partial enclosure of external staircase to detached garage

    Lakeside Manor, West End Lane, Hatfield, AL9 6AZ

    Received 1 Jan 1987
  24. Decided - GrantedN6/2008/1194/FP

    EXTENSION TO EXISTING VEHICLE HARDSTANDING

    1 OAKINGTON, WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 2PS

    Received 14 Jul 2008

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

View all applications

Applications by postcode area

Get emailed about new planning applications in Welwyn Hatfield

Area alerts send a daily or weekly email with new applications and decisions near a postcode, filtered by project type. £29 a month, up to 3 areas. Records are limited to the councils we collect.

Set up an area alert

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