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
18,272Searchable applications
298Recorded as pending
86%Approval rate · 14,723 approved or refused records
2,032Refused applications

12,691 approved · 2,032 refused · 927 withdrawn. Received dates in our records: 5 Jan 2005 to 30 Sept 2026. Most recent record check: 11 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2023/0785/HOUSE

    Erection of single storey rear extension following demolition of existing extension, conservatory and canopy/ veranda. Garage conversion and new porch. New windows and changes to materials on external elevations

    23 Brookside Crescent Cuffley Potters Bar EN6 4QW

    Received 11 Apr 2023
  2. Decided - Granted6/2020/3410/LAWP

    Certificate of lawfulness for the erection of two dormers

    75 Brookside Crescent Cuffley Potters Bar EN6 4QP

    Received 21 Dec 2020
  3. Decided6/2016/1493/VAR

    Variation of condition 1 to extend the temporary permission; condition 3 to permit eight caravans of which no more than five would be static caravans; condition 4 to vary the approved drawings; and condition 5 to vary the site development scheme; of planning permission S6/2011/0116/FP

    Thunderbridge Yard Bulls Lane Hatfield AL9 7BB

    Received 22 Jul 2016
  4. Decided - Granted6/2021/2009/PN8

    Prior approval for the erection of a single storey rear extension measuring 6m in depth, 3.15m in height and 2.74m to the eaves.

    9 Moffats Lane Brookmans Park AL9 7RX

    Received 2 Jul 2021
  5. Decided - Refused6/2023/2304/PN8

    Prior approval for the erection of a single storey rear extension measuring 6m in depth, 3m in height, and 3m to the eaves

    6 Puttocks Close Welham Green Hatfield AL9 7LN

    Received 15 Nov 2023
  6. Decided - Granted6/2025/0908/EM

    Extension of hardstanding

    17 Crossway Welwyn Garden City AL8 7ED

    Received 16 May 2025
  7. Decided - Refused6/2020/3431/PN15

    Prior Approval for a proposed telecommunications upgrade (MBNL 20.0m High Valmont Slimline Monopole) to be installed on a new concrete foundation and with associated ancillary works following the removal of the existing MBNL 15.0m High Hutchinson Engineering Phase 8 Streetpole on root foundation and the ground made good.

    DNS Cole Green Lane Cole Green Lane Welwyn Garden City Hall Grove AL7 3DQ

    Received 23 Dec 2020
  8. Decided - Granted6/2023/1478/COND

    Submission of details pursuant to condition 2 (materials, 3 (hard and soft landscape) and condition 5 (cycle parking) on planning permission 6/2021/2595/FULL

    71 Bluebridge Road Hatfield AL9 7UW

    Received 17 Jul 2023
  9. Decided - Granted6/2019/0018/PN11

    Prior approval for change of use of the first, second and third floors from office (B1(a)) to residential (C3)

    Norton Building Bridge Road East

    Received 3 Jan 2019
  10. Decided - Granted6/2021/3222/COND

    Submission of details pursuant to condition 14 (surface water drainage scheme) on planning application 6/2019/2086/MAJ

    Minster House Minster Close Hatfield AL10 9JN

    Received 10 Nov 2021
  11. Decided - Granted6/2022/1455/HOUSE

    Erection of first floor extension above garage and new porch to front of property

    32 Upland Drive Brookmans Park Hatfield AL9 6PT

    Received 22 Jun 2022
  12. Decided - Granted6/2024/0607/FULL

    Erection of a dwelling house with detached double garage following the demolition of existing garage

    Land at The Warren 8 Carbone Hill Northaw Potters Bar EN6 4PL

    Received 27 Mar 2024
  13. Decided - Granted6/2022/0325/FULL

    Change of use from amenity land to residential (C3) with the installation of a hardstanding to front with landscaping works

    4 The Downs Hatfield AL10 8JP

    Received 11 Feb 2022
  14. Decided - Refused6/2020/2705/HOUSE

    First floor side extension, demolition of existing single storey side and replacement with two storey side extension and new crossover

    13 Carleton Rise Welwyn AL6 9RP

    Received 16 Oct 2020
  15. Decided - Granted6/2022/2093/EMT

    1 x Plum to reduce remaining two stems by approximately 3m. One section of this tree snapped out in bad weather back in May and fell in to neighbouring property to the rear. By carrying out these works, it should allow the weakened union to stabilise

    17 Crossway Welwyn Garden City AL8 7ED

    Received 7 Sept 2022
  16. Decided - Granted6/2026/0728/HOUSE

    Erection of a part single, part two storey rear extension, garage conversion and installation of rooflights

    78 Valley Road Welwyn Garden City AL8 7DP

    Received 24 Apr 2026
  17. Decided - Granted6/2021/2267/EMH

    Demolition and erection of detached dwelling with attached garage

    1 Pentley Close Welwyn Garden City AL8 7SH

    Received 28 Jul 2021
  18. Decided - Granted6/2021/3284/TPO

    Yew T1: Prune laterally by 3m to south east Reason for works: Crown spreads 6m to south east and is touching adjacent building and is preventing the safe installation of scaffolding. This is a poorly formed tree with major kink / twist in stem. Tree of heaven T2: Reduce laterally on all sides - North side: 8.5m to 5.5m East side: 8.5m to 5.5m South side: 8m to 5.5m West side: 8m to 5.5m Remove deadwood; and Crown lift to 6m on all sides over road and car park. Reason for works: To reduce risk of failure as tree has shed several limbs in past and tree of heaven wood is very brittle.

    82 Great North Road Hatfield AL9 5BL

    Received 18 Nov 2021
  19. Decided - Granted6/2019/3134/LAWP

    Certificate of lawfulness for a loft conversion with a rear dormer and roof lights and removal of chimney

    78 Roe Green Lane Hatfield AL10 0SJ

    Received 12 Dec 2019
  20. Decided - Withdrawn6/2025/0740/LAWP

    Certificate of lawfulness for the erection of proposed outbuilding with pitched roof

    74 Warrengate Road North Mymms Hatfield AL9 7TY

    Received 17 Apr 2025
  21. Decided - Granted6/2020/0695/HOUSE

    Erection of single storey rear extension following demolition of existing conservatory

    Elm Cottage Grubbs Lane Hatfield AL9 6EG

    Received 11 Mar 2020
  22. Decided - Granted6/2024/0186/EMT

    Reduce 1 x Ash crown by 4m

    Flat 1 19 Meadow Green Welwyn Garden City AL8 6SS

    Received 30 Jan 2024
  23. Decided - Granted6/2019/1083/FULL

    Construction of a footbridge and footpath

    Welwyn Commons The Commons Welwyn Garden City AL7 4ER

    Received 7 May 2019
  24. Decided - Granted6/2022/0550/LAWP

    Certificate of lawfulness for a loft conversion with rear dormer extension and installation of roof windows to front roof slope. Removal of chimney

    43 Hollybush Lane Welwyn Garden City AL7 4JH

    Received 8 Mar 2022

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