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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
40,295Searchable applications
322Recorded as pending
86%Approval rate · 33,786 approved or refused records
4,816Refused applications

28,970 approved · 4,816 refused · 2,217 withdrawn. Received dates in our records: 29 Apr 1948 to 29 Oct 2026. Most recent record check: 7 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2017/1914/EM

    1 x Ailanthus to reduce by 2m height & 1.5m width, 1 x Rowan to fell, 1 x Eucalyptus to reduce by 5m height & 3m width, 1 x Birch to reduce by 4m 1 x Hazel to reduce by 1.5m, 1 x Norway Maple to reduce by 3m height & 2m width and 1 x Eucalyptus to reduce by 3m height & 2.5 m width

    19 Digswell Park Road Welwyn Garden City AL8 7NW

    Received 25 Aug 2017
  2. Decided - GrantedN6/2004/1748/FP

    ERECTION OF REAR CONSERVATORY

    32 Harmer Green Lane Digswell Welwyn AL6 0AT

    Received 25 Nov 2004
  3. Decided - GrantedN6/2013/0606/FP

    Erection of single storey rear extension

    8 Marsden Green, WELWYN GARDEN CITY, AL8 6YA

    Received 21 Mar 2013
  4. Decided - GrantedS6/2015/1153/FP

    Erection of single storey rear flat roof extension following demoltion of conservatory

    39 Swanley Crescent Little Heath Potters Bar EN6 1NQ

    Received 1 Jun 2015
  5. Decided - Granted6/2016/0457/FULL

    Improvements to footbridge to include a new floor finish, lighting and the restoration of the existing lattice steel structure

    Footbridge, Hyde Way, Welwyn Garden City, AL7 3BU

    Received 18 Mar 2016
  6. Decided - Granted6/2016/0512/EM

    Replacement of existing chimney with new chimney similar to existing

    19 Russellcroft Road, Welwyn Garden City, AL8 6QX

    Received 23 Mar 2016
  7. Appeal Decided - AllowedS6/2009/2042/FP

    ERECTION OF TWO STOREY REAR EXTENSION

    11-12 HOOK LANE, NORTHAW, POTTERS BAR, HERTS, EN6 4DA

    Received 18 Sept 2009
  8. Decided - GrantedS6/2014/1781/DS

    Approval of details reserved by condition 5 (Site storage), 6 (Materials), 7 (Roof tiles), 10 (contamination), 12 (Waste) & 18 (Landscaping) of Planning Permission S6/2013/2231/MA

    1 Green Close, Brookmans Park, Hatfield, AL9 7ST

    Received 8 Aug 2014
  9. Decided - Withdrawn6/2020/0338/PN8

    Prior approval for the erection of a single storey rear extension measuring 3.80m in depth, 3.00m in heights and 3.00m to the eaves

    34 Frampton Road Little Heath Potters Bar EN6 1JE

    Received 6 Feb 2020
  10. Decided - GrantedN6/2015/0438/FP

    Erection of rear conservatory

    5 Brockett Close, Welwyn Garden City, AL8 7BN

    Received 27 Feb 2015
  11. Decided - GrantedN6/2009/0973/FP

    PROPOSED NEW BLACK SOIL PIPE TO FRONT OF PROPERTY

    1 GUESSENS WALK, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 6QS

    Received 1 Jun 2009
  12. Decided6/2018/2091/TPO

    Prune 1 x Mulberry tree (T1) by 2m- Conservation Area

    3 Brockett Close Welwyn Garden City AL8 7BN

    Received 10 Aug 2018
  13. Decided - Granted6/2024/2443/HOUSE

    Erection of a single storey infill front extension to form ground floor WC facility

    40 Travellers Lane Hatfield AL10 8SF

    Received 30 Dec 2024
  14. Decided - Granted6/2020/0607/HOUSE

    Erection of two storey front extensions, first floor rear extension and a new pitched roof with an increase in ridge height and rear dormer

    9 Bradgate Cuffley Potters Bar EN6 4RW

    Received 3 Mar 2020
  15. Decided - Granted6/2015/2077/HOUSE

    Retention of single storey rear extension

    7 Clarkes Road Hatfield AL10 0HN

    Received 7 Oct 2015
  16. Appeal Decided - DismissedN6/2007/0191/FP

    ERECTION OF FIRST FLOOR SIDE EXTENSION AND EXTENSION TO PORCH

    18 Birch Grove Welwyn AL6 0QP

    Received 5 Feb 2007
  17. Decided - Withdrawn6/2026/1231/FULL

    Installation of new fencing and gates across the school boundary adjacent to the main road

    St Johns Church Of England Jmi School Lemsford Village Lemsford Welwyn Garden City AL8 7TR

    Received 13 Jul 2026
  18. Decided - Withdrawn6/2018/3007/HOUSE

    Erection of single storey rear conservatory

    125 Aldykes Hatfield AL10 8EB

    Received 23 Nov 2018
  19. Decided - Granted6/2026/0982/FULL

    Installation of one self service laundry kiosk to Tesco superstore curtilage

    Tesco Superstore Great North Road Hatfield AL9 5JY

    Received 3 Jun 2026
  20. Decided - GrantedC6/1988/0310/FP

    Rear extension to form summerhouse

    4 High Oaks Road, Welwyn Garden City, AL8 7BH

    Received 1 Jan 1988
  21. Decided - GrantedN6/2009/1635/FP

    ERECTION OF BAY WINDOW TO KITCHIN

    Halls House 2 Halls Close Hobbs Hill Welwyn AL6 9DF

    Received 30 Jul 2009
  22. Decided - Granted6/2026/0137/EMT

    1 x Japanese Elm to fell. 2 x Hornbeam to fell.

    17 Roundwood Drive Welwyn Garden City AL8 7JZ

    Received 27 Jan 2026
  23. Decided - GrantedS6/2008/0578/LU

    CERTIFICATE OF LAWFULNESS FOR A PROPOSED CONVERSION OF EXISTING HIPPED ROOF TO A GABLE AND INSTALLATION OF DORMER AND JULIET BALCONY TO REAR AND TWO ROOF LIGHT WINDOWS TO THE FRONT

    33 Holme Road Hatfield AL10 9LH

    Received 17 Mar 2008
  24. Decided - Granted6/2019/2264/HOUSE

    Erection of single storey front extension

    8 Orchard Close Cuffley Potters Bar EN6 4QD

    Received 19 Aug 2019

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

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How to search planning applications

Guides to planning records

All planning guides

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    Planning application documents: what to read first

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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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