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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
40,297Searchable 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29,002 approved · 4,819 refused · 2,219 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2020/1629/HOUSE

    Erection of a single storey rear extension

    11 Linkfield Welwyn Garden City AL7 4DN

    Received 7 Jul 2020
  2. Decided - Granted6/2015/1826/HOUSE

    Erection of single storey rear extension and associated works to openings following removal of existing glazing

    21 Elmwood Welwyn Garden City AL8 6LD

    Received 16 Jul 2015
  3. Decided - RefusedN6/2008/2496/FP

    ERECTION OF SINGLE STOREY SIDE EXTENSION AND SINGLE STOREY FRONT EXTENSION

    140 COLE GREEN LANE, WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 3JE

    Received 29 Dec 2008
  4. Decided - Granted6/2021/3397/HOUSE

    Erection of a single storey rear extension following demolition of the existing conservatory, insertion of a window in rear elevation and door opening in the side elevation.

    12 Marsden Road Welwyn Garden City AL8 6XZ

    Received 3 Dec 2021
  5. Decided - RefusedN6/2014/1093/FP

    Erection of single storey rear extension, two storey side extension roof conversion and first floor side extension

    18 Oaklands Rise Welwyn AL6 0RN

    Received 14 May 2014
  6. Decided - Granted6/2016/2100/COND

    Approval of details reserved by condition 2 (Approved Scheme of Remediation) and condition 3 (External Lighting) on planning permission S6/2015/1393/HOUSE

    Nast Hyde Barns, Wilkins Green Lane, Hatfield, AL10 9RF

    Received 4 Oct 2016
  7. Decided - GrantedN6/2014/1326/FP

    Erection of single storey side extension

    41 Mardley Wood Welwyn AL6 0UZ

    Received 11 Jun 2014
  8. Decided - GrantedS6/2009/1874/FP

    ERECTION OF TWO DETACHED DWELLINGS, FOLLOWING DEMOLITION OF EXISTING DWELLING

    65 GEORGES WOOD ROAD, BROOKMANS PARK, HATFIELD, HERTFORDSHIRE, AL9 7BX

    Received 28 Aug 2009
  9. Decided - Granted6/2017/1195/HOUSE

    Erection of single storey front porch and side extension following demolition of existing detached garage.

    4 Youngs Rise Welwyn Garden City AL8 6RU

    Received 31 May 2017
  10. Decided - Granted6/2016/2427/TPO

    Crown reduction of 20% and associated trimming to Cedrus Deodara tree - Conservation Area

    36 High Oaks Road Welwyn Garden City AL8 7BH

    Received 14 Nov 2016
  11. Decided - Granted6/2026/1522/HOUSE

    Erection of single storey rear extension

    93 The Commons Welwyn Garden City AL7 4RZ

    Received 1 Sept 2026
  12. Decided - RefusedS6/2005/1574/FP

    ERECTION OF A NEW DWELLING FOLLOWING DEMOLITION OF EXISTING DWELLING

    Heronswood Ponsbourne Park Newgate Street Hertford SG13 8QU

    Received 21 Dec 2005
  13. Decided - Granted6/2022/1983/TPO

    1 x pine remove dead and damaged branches covered by TPO224 4 x cedar remove dead wood cut back to clear property by 2M covered by TPO224 1 x silver birch reduce by 1/3 approximately 2M covered by TPO224

    1 Hanyards Lane Cuffley Potters Bar EN6 4AS

    Received 25 Aug 2022
  14. Decided - GrantedW6/2014/1389/EM

    Erection of Timber shed following removal of existing shed located in rear garden

    3 Dellcott Close, Welwyn Garden City, AL8 7BB

    Received 18 Jun 2014
  15. Decided - Granted6/2025/1536/EMT

    Retrospective application to fell 1x Apple tree as rotted at the base and has collapsed

    17 High Oaks Road Welwyn Garden City AL8 7BJ

    Received 16 Jul 2025
  16. Decided - GrantedW6/2007/0409/EM

    PROPOSED LOFT CONVERSION WITH VELUX WINDOWS AND GABLE END WINDOWS

    32 Beehive Lane, Welwyn Garden City, AL7 4BQ

    Received 12 Mar 2007
  17. Decided - Granted6/2026/1252/HOUSE

    Erection of part single storey part two storey rear extension, garage conversion and installation of air conditioning unit mounted at ground floor on the rear elevation

    31 Brockswood Lane Welwyn Garden City AL8 7BE

    Received 16 Jul 2026
  18. Decided - Withdrawn6/2017/0292/FULL

    Erection of two-storey 5 bedroom dwellinghouse with basement accomodation involving demolition of existing storage barn building. Change of use from class B8 to class C3

    Cuffley Hills Barn The Ridgeway Cuffley EN6 4AY

    Received 15 Feb 2017
  19. Decided - RefusedS6/2009/2636/FP

    CONVERSION OF LOFT INCORPORATING FRONT AND REAR DORMER WINDOWS GABLE END ABOVE PART HIPPED ROOF

    21 SELWYN AVENUE, HATFIELD, HERTS, AL10 9NR

    Received 8 Dec 2009
  20. Decided - Granted6/2020/1009/LB

    Dismantling and rebuilding chimney

    Ayot Montfitchet Ayot St Peter Road Ayot St Peter Welwyn AL6 9BH

    Received 5 May 2020
  21. Decided6/2017/2042/RW

    Notification of Modification Order adding of bridleway

    North Mymms 90 91 and Ridge 44

    Received 11 Sept 2017
  22. Decided - Split6/2024/0401/COND

    Submission of details pursuant to condition number 2 (Construction Management Plan) and condition number 3 (Construction Environment Management Plan) on planning permission 6/2023/1898/FULL

    58 Harmer Green Lane Digswell Welwyn AL6 0AW

    Received 1 Mar 2024
  23. Decided6/2019/0868/TC

    Fell 1 x Ash tree to ground level and reduce 1 x Ash tree by 2.5 metres in height and 2 metres in width - Conservation Area

    2 The Orchard Welwyn Garden City AL8 7PL

    Received 10 Apr 2019
  24. Decided6/2019/1215/TC

    Fell 1 x Oak tree covered by conservation area

    Essendon Lodge School Lane Essendon Hatfield AL9 6HD

    Received 20 May 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

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    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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