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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
30,751Searchable applications
303Recorded as pending
87%Approval rate · 25,603 approved or refused records
3,367Refused applications

22,236 approved · 3,367 refused · 1,637 withdrawn. Received dates in our records: 29 Apr 1948 to 13 Oct 2026. Most recent record check: 19 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 Counts reflect the last collected status; some records may be out of date.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. Decided - Granted6/2018/0196/COND

    Submission of details pursuant to condition 9 (construction method statement and plan) on planning permission 6/2017/1028/MAJ, dated 24/11/2017

    20 Black Fan Road Welwyn Garden City AL7 1QA

    Received 22 Jan 2018
  2. Decided6/2019/0013/TPO

    Reduce 1 x Walnut tree by around 1.5m in height and width - Conservation Area

    38 Barleycroft Road Welwyn Garden City AL8 6JU

    Received 3 Jan 2019
  3. Decided - GrantedN6/2014/2070/LUP

    Certificate of lawfulness for a proposed garage conversion

    56 Springfields, Welwyn Garden City, AL8 6XN

    Received 19 Sept 2014
  4. Decided - Granted6/2015/1785/FULL

    Replacement and alteration of doors and windows

    1-5 Harpsfield Broadway Hatfield AL10 9TF

    Received 24 Aug 2015
  5. Decided - Granted6/2020/3107/HOUSE

    Erection of a single storey rear extension and increase of height of side garage

    50 Bell Lane Hatfield AL9 7AY

    Received 23 Nov 2020
  6. Decided - Granted6/2021/2300/EM

    Fell Lawson's Cypress (T1), new permeable hard-standing and changes to front fenestration/doors.

    2 Mannicotts Welwyn Garden City AL8 7BW

    Received 2 Aug 2021
  7. Decided - Granted6/2018/1358/COND

    Submission of details pursuant to condition 8 (signage) of planning permission 6/2016/2214/MAJ

    Gate House Fretherne Road

    Received 22 May 2018
  8. Decided - GrantedS6/2014/1304/FP

    Conversion of existing barn/agricultural storage facility to a single residential dwelling and associated landscaping works together with demolition of 9no. Stables, refurbishment of 7no. Stables to be retained, and construction of a new double garage

    Windmill Farm Ponsbourne Park, Newgate Street, Hertford, SG13 8QU

    Received 10 Jun 2014
  9. Decided - Granted6/2015/2490/HOUSE

    Erection of two storey front extension and single storey rear extension including alterations to roof

    3 Mornington Digswell Welwyn AL6 0AJ

    Received 10 Dec 2015
  10. Appeal Decided - Allowed6/2016/0956/EM

    Removal of Pine tree located in rear garden

    10 Russellcroft Road, Welwyn Garden City, AL8 6QT

    Received 16 May 2016
  11. Decided6/2020/3170/TC

    Pollard hawthorn tree which has grown out of hedge line. Looking to maintain hedge again

    1 Marley Road Welwyn Garden City AL7 4BT

    Received 25 Nov 2020
  12. Decided - Granted6/2024/1555/EM

    Install wooden shed/cabin in garden. This will be located behind the garage and not visible from the road. It will also be obscured by a mature fig tree. It will be below the height of the adjoining property boundary fence. It is for storage of garden furniture and gardening tools

    29 Brockswood Lane Welwyn Garden City AL8 7BE

    Received 15 Aug 2024
  13. Decided - RefusedS6/2013/2313/LUE

    Certificate of lawfulness for existing use of House in Multiple Occupation (C4)

    11 Holly Close Hatfield AL10 9JB

    Received 31 Oct 2013
  14. Decided - Refused6/2021/1205/FULL

    Alterations to fenestration, including the replacement of current single glazed windows with upvc double glazed windows

    26 Stonehills Welwyn Garden City AL8 6NA

    Received 14 Apr 2021
  15. Decided - Granted6/2023/1505/LAWE

    Certificate of existing lawfulness for a carport

    The Willows Marshmoor Lane Welham Green Hatfield AL9 7HT

    Received 18 Jul 2023
  16. Decided - Granted6/2016/0451/LB

    Removal of Gilt Chinoiserie headboard

    Brocket Hall, Brocket Park, Marford Road, Lemsford, Welwyn Garden City, AL8 7XG

    Received 17 Mar 2016
  17. Decided - GrantedS6/2014/1880/FP

    Installation of ATM and change of location of plant from previously approved planning permission

    37-39 Bradmore Green, Brookmans Park, Hatfield, AL9 7QR

    Received 21 Aug 2014
  18. Decided - Granted6/2025/0194/FULL

    Change of use from a shop (Class E) to a restaurant (Class E)

    33-35 Market Place Hatfield AL10 0LJ

    Received 5 Feb 2025
  19. Decided - Granted6/2025/0525/HOUSE

    Erection of a single storey side/rear extension

    29 Hillside Way Welwyn AL6 0TY

    Received 20 Mar 2025
  20. Decided - Granted6/2016/2655/EM

    To reduce two red oak trees by 30%

    6 Brockett Close Welwyn Garden City AL8 7BN

    Received 13 Dec 2016
  21. Decided6/2020/1548/TC

    Reduce crown of 1 x Eucalyptus tree by 3 metres from the height and 4 metres from the width

    3 Fordwich Road Welwyn Garden City AL8 6EX

    Received 30 Jun 2020
  22. Decided - GrantedN6/2015/0890/FP

    Erection of two storey side extension following demolition of existing bathroom

    3 Junction Cottages, Blakemere Road, Welwyn Garden City, AL8 7PH

    Received 24 Apr 2015
  23. Decided - Granted6/2026/0767/PN8

    Prior approval for the erection of a single storey rear extension measuring 6m in depth, 3.30m in height and 3.00m to the eaves

    19 Holme Road Hatfield AL10 9LH

    Received 1 May 2026
  24. Decided - Granted6/2016/0663/EM

    Remove major deadwood and faulted stems from two Lombardy Poplar trees, raise Sycamore tree canopy to 3m plus fell four Sycamore trees, one Cherry tree and one Hawthorn tree and removal of wire from stem of Beech tree

    21 Knightsfield, Welwyn Garden City, AL8 7JE

    Received 30 Mar 2016

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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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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