PlanningTrack
Get started

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
27,631Searchable applications
307Recorded as pending
86%Approval rate · 22,790 approved or refused records
3,079Refused applications

19,711 approved · 3,079 refused · 1,483 withdrawn. Received dates in our records: 5 Jan 2005 to 13 Oct 2026. Most recent record check: 17 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2026/0544/TPO

    TPO 623 T1-Silver Birch-Fell to stump level as it has decay at the base and looks to be in decline. It has dead wood within the crown and is leaning towards the road.

    4 Birch Grove Welwyn AL6 0QP

    Received 24 Mar 2026
  2. Decided - Refused6/2016/0426/HOUSE

    Erection of first floor front and rear extension, formation of new roof with dormer and velux windows creating additional bedrooms to the loft area. New fenestration to all elevations and new full height french doors to the rear elevation.

    78 Tolmers Road, Cuffley, Potters Bar, EN6 4JY

    Received 11 Mar 2016
  3. Decided - Granted6/2019/3172/PN8

    Prior approval for the erection of a single storey rear extension measuring 8m in depth, 3m in height and 2.92m to the eaves

    66 The Meadway Cuffley Potters Bar EN6 4ES

    Received 17 Dec 2019
  4. Decided - Granted6/2018/0758/HOUSE

    Remodelling of the existing dwelling to include the erection of wrap around extension and new driveway following demolition of side extension and front porch.

    Millers Carbone Hill Northaw Newgate Street SG13 8RG

    Received 21 Mar 2018
  5. Decided - Granted6/2023/0655/EM

    Replacement dying hedge, to replant a hedge of Yew in its place

    2 Parkfields Welwyn Garden City AL8 6ED

    Received 22 Mar 2023
  6. Decided - Granted6/2018/0005/HOUSE

    Installation of 3 rear dormers and 4 side windows to facilitate conversion of existing loft to habitable space

    127 The Ridgeway Cuffley Potters Bar EN6 4BG

    Received 2 Jan 2018
  7. Decided - GrantedN6/2014/1601/FP

    Erection of single storey rear extension

    34A Hertford Road Digswell Welwyn AL6 0DB

    Received 15 Jul 2014
  8. Decided - Granted6/2019/1806/HOUSE

    Erection of conservatory

    2 Oakington Welwyn Garden City AL7 2PS

    Received 19 Jul 2019
  9. Decided - Granted6/2026/1402/COND

    Submission of details pursuant to Condition 1 (samples of the roof tiles) and condition 3 (rooflights) on listed building consent 6/2026/0690/LB

    Wytmead Essendon Hill Essendon Hatfield AL9 6AW

    Received 7 Aug 2026
  10. Decided - Granted6/2025/0246/HOUSE

    Erection of part single storey, part two storey rear extension

    53 Bishops Rise Hatfield AL10 9BU

    Received 11 Feb 2025
  11. Decided - Granted6/2023/2214/HOUSE

    Conversion of garage into habitable space with insertion of window and raising of roof

    23 Becket Gardens Welwyn AL6 9JE

    Received 1 Nov 2023
  12. Decided - Granted6/2021/0373/EM

    Replacement of rooftiles with double Roman tile

    10 Attimore Road Welwyn Garden City AL8 6LW

    Received 5 Feb 2021
  13. Decided - Granted6/2016/1735/ADV

    Installation of new replacement signage and lighting upgrade

    The Mayflower, Sloansway, Welwyn Garden City, AL7 1NB

    Received 22 Aug 2016
  14. Appeal Decided - Dismissed6/2018/1959/FULL

    Retention of change of use from summerhouse to single residential dwelling

    30 Astwick Avenue Hatfield AL10 9LA

    Received 25 Jul 2018
  15. Decided - Granted6/2020/0854/FULL

    Retention of retaining wall and hand rail

    Premier Inn Stanborough Road Welwyn Garden City AL8 6DQ

    Received 8 Apr 2020
  16. Decided6/2025/1404/TC

    1 x Beech hedge to reduce outgrown section down to around 3.5m above ground level, in line with the rest of the Beech hedge

    38 Reddings Welwyn Garden City AL8 7LA

    Received 3 Jul 2025
  17. Decided - Granted6/2023/0539/HOUSE

    Erection of single storey front infill extension, installation of dormers into both flank facing roofslopes, and erection of single storey side to rear extension.

    29 Georges Wood Road Brookmans Park Hatfield AL9 7BY

    Received 9 Mar 2023
  18. Decided - Granted6/2023/0971/EM

    Alterations of existing front porch, existing double sliding external kitchen door and current vehicle standing

    4 Fallowfield Welwyn Garden City AL7 1EE

    Received 9 May 2023
  19. Decided - Granted6/2022/2069/EM

    Erection of a part single, part double storey rear extension, installation of solar panels to the proposed pitched rear roof, erection of a single storey side extension to replace existing extension, alterations to the existing driveway to create additional parking

    12 Coneydale Welwyn Garden City AL8 7RZ

    Received 6 Sept 2022
  20. Decided - Granted6/2025/2022/HOUSE

    Erection of a single storey rear infill extension and a single storey rear extension following the demolition of the existing single storey rear lean-to. Installation of decking and steps down to the garden along the rear elevation and alterations to fenestration.

    45 Mardley Hill Welwyn AL6 0TT

    Received 22 Sept 2025
  21. Decided - Granted6/2017/2156/HOUSE

    Erection of single storey rear infill extension and alterations to existing openings

    64 Great North Road Welwyn Garden City AL8 7TL

    Received 25 Sept 2017
  22. Under Consideration6/2025/1362/COND

    Submission of details pursuant of condition 15 (Site Investigation and Remediation Strategy), 17 (Long Term Monitoring), 21 (Decommission of Investigation Boreholes) on planning permission 6/2021/0516/VAR

    Land North East of Welwyn Garden City Panshanger Welwyn Garden City AL7 2QJ

    Received 30 Jun 2025
  23. Decided6/2018/0753/TPO

    Fell 5 x Lawson Cypress trees within the garden and grind stumps - conservation area

    132 The Vineyard Welwyn Garden City AL8 7PU

    Received 21 Mar 2018
  24. Decided - Granted6/2016/1851/TPO

    Thin Mulberry tree and Medlar tree crowns by 15% and reduce height and spread by 1.5m plus thin Whitebeam tree crown by 10% and reduce height and spread by upto 2-4m - Conservation Area

    21 High Oaks Road, Welwyn Garden City, AL8 7BJ

    Received 9 Sept 2016

Records are ordered by application ID, not submission date. Use search to find a particular address or proposal.

View all applications

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