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29,002 approved · 4,819 refused · 2,219 withdrawn.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: 10 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2022/0857/HOUSE

    Erection of single storey rear extension with flat roof and roof lantern and single storey side extension with a redesigned roof over including to existing with gable ends, rear and side dormers plus roof windows.

    10 Sutherland Way Cuffley Potters Bar EN6 4EG

    Received 11 Apr 2022
  2. Decided - Granted6/2016/0659/EM

    Installation of vehicle hardstanding

    50 Boundary Lane, Welwyn Garden City, AL7 4DY

    Received 8 Apr 2016
  3. Decided - Granted6/2016/0103/VAR

    Variation of condition 1 (drawings) and condition 3 (fence details) on planning permission 6/2015/1902/HOUSE

    51 Warren Way Digswell Welwyn AL6 0DL

    Received 21 Jan 2016
  4. Decided - Granted6/2022/1834/HOUSE

    Erection of single storey rear extension and loft conversion including the insertion of four rooflights.

    81 Eddington Crescent Welwyn Garden City AL7 4SX

    Received 5 Aug 2022
  5. Decided - Granted6/2021/1398/HOUSE

    Erection of a single storey rear extension following demolition of existing conservatory, and insertion of window to existing ground floor side elevation

    17 Kelbys Welwyn Garden City AL7 2EG

    Received 4 May 2021
  6. Decided - Granted6/2017/2406/LB

    Reinforce existing basement walls

    Ayot Cottage Hill Farm Lane Welwyn AL6 9BT

    Received 19 Oct 2017
  7. Decided - Granted6/2016/0781/HOUSE

    Proposed new 1.8 metre high timber security gate

    Vixendell, Lane End, Hatfield, AL10 9AG

    Received 26 Apr 2016
  8. Decided - Granted6/2017/2598/LAWP

    Certificate of Lawfulness for the installation of rear dormer and roof light to facilitate loft conversion

    41 School Lane Welwyn AL6 9PQ

    Received 8 Nov 2017
  9. Decided - GrantedN6/2009/1748/FP

    ERECTION OF SINGLE STOREY REAR AND SIDE EXTENSIONS

    7 FORDWICH ROAD, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 6EX

    Received 16 Jul 2009
  10. Decided - Split6/2025/0990/COND

    Confirmation that all conditions on planning permission 6/2017/0848/MAJ dated 26 October 2018 have been fully discharged

    Entech House London Road Woolmer Green Knebworth SG3 6JE

    Received 22 May 2025
  11. Decided - Granted6/2025/1411/EMT

    T1-Ash-Crown reduce by 2-3 metres to maintain size and shape for the area. T2-Oak-Reduce in height by 3-4 metres as it has 'Eiffel Tower Fungus' T3-Oak-Crown reduce by 2-3 metres to maintain size and shape for the garden

    48 Attimore Road Welwyn Garden City

    Received 3 Jul 2025
  12. To be Considered DMC-Date Agreed6/2026/0108/OUTLINE

    Outline Planning Application for up to 100 dwellings (including affordable housing), open space, sustainable drainage systems (SuDS), vehicular access point and associated infrastructure, with all matters reserved except for access

    Land to the north of New Road Stanborough Welwyn Garden City AL8 7TX

    Received 23 Jan 2026
  13. Decided - Granted6/2024/0462/HOUSE

    Erection of a single storey front and part single, part two storey rear and side extension

    1 Cooks Way Hatfield AL10 8XT

    Received 11 Mar 2024
  14. Decided - Granted6/2021/0102/EMT

    Reduce 1 x Dawn Redwood by 3m height and 1.5m width

    11 The Orchard Welwyn Garden City AL8 7PL

    Received 13 Jan 2021
  15. Decided - Refused6/2020/1840/HOUSE

    Erection of new detached garage.

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

    Received 27 Jul 2020
  16. Decided - RefusedS6/2009/0938/FP

    ERECTION OF SINGLE STOREY AND TWO STOREY REAR EXTENSION AND ALTERATIONS TO FRONT ELEVATION

    1 The Drive Ponsbourne Park Newgate Street Hertford SG13 8QS

    Received 23 Apr 2009
  17. Decided - GrantedS6/2014/2233/FP

    Erection of two storey side extension and front porch

    50 Lockley Crescent Hatfield AL10 0TP

    Received 8 Oct 2014
  18. Decided6/2018/2078/TPO

    Fell 1 x Fir tree (T1), Reduce 1 x Western Reo Cedar tree (T2) by 1-2 meters to bring back in line with canopy -Conservation area

    Dellcott Tennis Club Dellcott Close/Dognell Green Welwyn Garden City AL8 7BL

    Received 8 Aug 2018
  19. Decided - GrantedS6/2008/0744/FP

    CHANGE OF USE OF OFFICE/STORE BUILDING TO PRIVATE HIRE MINI CAB CONTROL OFFICE AND ERECTION OF RADIO ANTENNA

    12 BURY ROAD, HATFIELD, HERTFORDSHIRE, AL10 8BJ

    Received 26 Apr 2008
  20. Decided - Granted6/2022/0372/TPO

    T1 Pine TPO 496 T6 - fell to ground level (dead).

    1 Foxes Lane Cuffley Potters Bar EN6 4JB

    Received 16 Feb 2022
  21. Decided - GrantedN6/2013/1031/DS

    Discharge of condition 4 from planning permision N6/2013/0369/FP

    10 Attimore Road, Welwyn Garden City, AL8 6LW

    Received 10 May 2013
  22. Decided - RefusedS6/2014/0943/HH

    Prior approval for the erection of single storey rear orangery

    4 Tollgate Cottages, Bullens Green Lane, Colney Heath, St Albans, AL4 0QT

    Received 8 May 2014
  23. Decided - Granted6/2018/0838/HOUSE

    Part garage conversion, installation of two skylights and alterations to rear openings following demolition of existing conservatory

    144 Parkway Welwyn Garden City AL8 6HP

    Received 29 Mar 2018
  24. Decided - Granted6/2017/0398/EM

    Reduce silver birch tree by upto 30%

    495 Howlands Welwyn Garden City AL7 4HS

    Received 1 Mar 2017

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