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England · Local authority

Welwyn Hatfield Borough Council
Planning applications.

Explore collected planning applications and decisions for Welwyn Hatfield Borough Council. Search an address, application reference or proposal to find a record.

Collected application statistics

Collected records · All available dates
33,446Searchable applications
313Recorded as pending
87%Approval rate · 28,003 approved or refused records
3,659Refused applications

24,344 approved · 3,659 refused · 1,745 withdrawn. Received dates in our records: 29 Apr 1948 to 14 Oct 2026. Most recent record check: 21 Oct 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 Counts reflect the last collected status; some records may be out of date.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. Decided6/2019/2361/TC

    Remove dead wood from 1 x Oak Reduce 1 x Hornbeam by 4m height & 2m width

    53 Parkway Welwyn Garden City AL8 6JF

    Received 24 Sept 2019
  2. Decided - WithdrawnS6/2014/2059/LB

    Erection of single storey rear extension

    North Lodge Holwell Court Hatfield AL9 5RL

    Received 3 Sept 2014
  3. Decided - Granted6/2020/1628/TPO

    Fell 1 x Leyland Cypress Tree Covered by TPO 642 [2017] G1

    27 Hillside Way Welwyn AL6 0TY

    Received 7 Jul 2020
  4. Decided - Granted6/2017/0415/TPO

    Fell two Poplar trees and two Prunus trees to ground level and reduce two Poplar trees by 25% - Conservation Area

    The Beehive Beehive Lane Welwyn Garden City AL7 4BW

    Received 3 Mar 2017
  5. Decided - Granted6/2023/2455/OUTLINE

    Outline permission for residential development of up to 44 dwellings following demolition of existing buildings and structures at Colesdale Farm with all matters reserved apart from access

    Colesdale Farm Northaw Road West Northaw Potters Bar EN6 4QZ

    Received 5 Dec 2023
  6. Decided - Granted6/2020/1832/HOUSE

    Single storey rear extension

    22 Wyton Welwyn Garden City AL7 2PF

    Received 24 Jul 2020
  7. Decided - Granted6/2019/0121/FULL

    Erection of bungalow following demolition of existing dwelling

    The Spinney Tylers Causeway Newgate Street Hertford SG13 8QN

    Received 22 Jan 2019
  8. Decided - Granted6/2015/2520/LAWE

    Certificate of lawfulness for the existing conversion of garage to kitchen

    15 Crawford Road Hatfield AL10 0PF

    Received 16 Dec 2015
  9. Decided - Granted6/2017/1488/HOUSE

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

    42 The Ryde Hatfield AL9 5DL

    Received 7 Jul 2017
  10. Decided - Granted6/2022/1305/HOUSE

    Erection of a single storey rear extension, replacement chimney, the insertion of a side gable window and the addition of 2 rear rooflights to facilitate loft conversion

    94 Lemsford Lane Welwyn Garden City Hertfordshire AL8 6YL

    Received 6 Jun 2022
  11. Decided - Refused6/2018/1027/HOUSE

    Erection of single storey rear extension and conversion of garage to gym/office following demolition of existing rear bay window

    9 Peregrine Way Hatfield AL10 9UP

    Received 19 Apr 2018
  12. Appeal Decided - Dismissed6/2019/1853/EM

    Fell 1x Blue Cedar tree (T1)

    1 Stonemead Welwyn Garden City AL8 7LX

    Received 29 Jul 2019
  13. Decided - Granted6/2019/2665/EM

    Fell 8 x Leyland Cypress Reduce 1 x Beech tree by 2m height & 1m width

    27 Rooks Hill Welwyn Garden City AL8 6EU

    Received 23 Oct 2019
  14. Decided - GrantedS6/2013/1090/DS

    Discharge of condition 3 (Landscaping) from planning application S6/2012/0795/FP

    83 Bluebridge Road, Brookmans Park, HATFIELD, AL9 7UN

    Received 28 May 2013
  15. Decided - Granted6/2021/0255/EM

    Installation of new single width driveway to existing front garden which will provide parking for 2 cars.

    53 Bushey Ley Welwyn Garden City AL7 3HB

    Received 27 Jan 2021
  16. Decided - Granted6/2020/1053/HOUSE

    Erection of single storey rear extension

    27 Chestnut Walk Welwyn AL6 0SD

    Received 12 May 2020
  17. Decided - Granted6/2021/0464/EM

    Increase the roof height to match existing roof height of nearest house and to provide adequate internal ceiling height

    163 Boundary Lane Welwyn Garden City AL7 4EQ

    Received 12 Feb 2021
  18. Decided - Withdrawn6/2017/0379/HOUSE

    Erection of two storey rear extension and first floor side extension with 4 rooflights, following the demolition of existing conservatory and partial conversion of existing garage to form utility room

    145 Boundary Lane Welwyn Garden City AL7 4EQ

    Received 27 Feb 2017
  19. Decided - SplitS6/2015/0640/LUP

    Certificate of lawfulness for the proposed single storey rear and side extensions

    66 Bramble Road Hatfield AL10 9SE

    Received 23 Mar 2015
  20. Decided - GrantedN6/2010/0091/FP

    ERECTION OF REAR EXTENSION AND ALTERATIONS TO ROOF

    2 Tylers Wood Welwyn AL6 0ET

    Received 19 Jan 2010
  21. Decided - Granted6/2026/0828/HOUSE

    Erection of a two storey side extension, single storey front extension and single storey rear extension following the demolition of the existing garage, single storey side extension and single storey side and rear lean-to additions. Alterations to the external materials and fenestration to the dwelling and associated landscaping works

    4 Bulls Lane Hatfield AL9 7PD

    Received 12 May 2026
  22. Decided - RefusedS6/2015/0052/FP

    Erection of part single, part three storey rear extension including rear dormer to existing roof and erection of front entrance porch

    53 Broad Acres Hatfield AL10 9LE

    Received 13 Jan 2015
  23. Decided - Refused6/2022/1626/HOUSE

    Two storey side extension and part two storey, part single storey rear extension with a new front entrance porch and new single storey garage extension. Ridge line of main roof to be raised to form a crown roof to allow for a new loft conversion with a box dormer on the rear roof slope. New rooflights on front and side roof slopes

    115 Tolmers Road Cuffley Potters Bar EN6 4JL

    Received 11 Jul 2022
  24. Decided - Granted6/2017/1171/EM

    Reduce 7 Lime trees by 25% plus removing major deadwood over 50mm and sever Ivy at 6 foot

    7 Handside Green Welwyn Garden City AL8 6SQ

    Received 30 May 2017

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.

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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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    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.

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