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
23,520Searchable applications
313Recorded as pending
86%Approval rate · 19,213 approved or refused records
2,685Refused applications

16,528 approved · 2,685 refused · 1,213 withdrawn. Received dates in our records: 5 Jan 2005 to 2 Oct 2026. Most recent record check: 14 Oct 2026. Counts reflect the last collected status; some records may be out of date.

Local planning information

Council sources checked 14 Sept 2026

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 - Split6/2019/0694/COND

    Submission of details pursuant to condition 2 (Glazing and Ventilation Scheme) and 7 (Bin Store Details) on planning permission 6/2017/1393/FULL

    Barham Court 80A Station Road Cuffley

    Received 21 Mar 2019
  2. Decided - Refused6/2019/0210/EM

    Erection of single storey rear extension with alterations to openings

    13 Sandpit Road Welwyn Garden City AL7 3TW

    Received 1 Feb 2019
  3. Decided - Granted6/2022/0788/EM

    Erection of single storey front extension.

    36 Howicks Green Welwyn Garden City AL7 4RH

    Received 30 Mar 2022
  4. Decided - Granted6/2017/2689/COND

    Submission of details pursuant to condition 3 (Hard & Soft Landscaping details) on Planning permission S6/2015/0185/FP dated 6 July 2015

    Osborne House Farm Hawkshead Road Little Heath Potters Bar EN6 1LX

    Received 20 Nov 2017
  5. Decided - Granted6/2022/1241/EMT

    1 x Norway Maple to reduce by 2m height & 1.5m width

    56 Blythway Welwyn Garden City AL7 1EF

    Received 26 May 2022
  6. Decided - Granted6/2017/2315/HOUSE

    Removal of garage door and replace with window for conversion of existing garage into habitable space

    45 Chambers Grove Welwyn Garden City AL7 4FG

    Received 10 Oct 2017
  7. Decided - Granted6/2018/2353/FULL

    Installation of extraction flue at the rear.

    The Parkway Bar Parkway Welwyn Garden City AL8 6JQ

    Received 14 Sept 2018
  8. Decided - Granted6/2022/0687/HOUSE

    Part demolition of existing single storey rear extension and construction of new full-width single storey rear extension

    11 Peplins Way Hatfield AL9 7UR

    Received 23 Mar 2022
  9. Decided - Refused6/2019/1612/HOUSE

    Erection of 2x side conservatories

    46 Kirklands Welwyn Garden City AL8 7RD

    Received 2 Jul 2019
  10. Decided - Granted6/2018/0213/VAR

    Variation of condition 1 (approved plans) on planning permission 6/2016/1286/FULL, dated 24/08/2016

    19 Briary Wood Lane Welwyn AL6 0TE

    Received 23 Jan 2018
  11. Decided6/2024/1672/TC

    1 x Sorbus Tree Front Garden (Dead) - Tree A To remove 1 x Cherry Tree Rear Garden ( Dead) - Tree B To remove 8 x Leylandi Trees at end of rear Garden -Reduce in height to 4m

    20 Fordwich Road Welwyn Garden City AL8 6EY

    Received 2 Sept 2024
  12. Decided - Withdrawn6/2020/1863/TPO

    Reduce Yew tree T1 by 20% covered by Conservation area.

    5 Barleycroft Green Welwyn Garden City AL8 6JY

    Received 28 Jul 2020
  13. Decided - Granted6/2025/0878/EMT

    T14 Maple to reduce all round by approx 1.5 metres (due to possible leaf infection and to maintain size and shape for the area).

    Barnside Court, Welwyn Garden City

    Received 9 May 2025
  14. Decided - Split6/2024/0503/COND

    Submission of details pursuant to condition number 1 (materials samples), 2 (landscaping plan), 3 (contaminated land), 5 (sound insulation) and 6 (construction method statement), on planning permission 6/2021/2332/FULL

    Land Adjacent to 2 The Cottages Bullstag Green Hatfield AL9 5DE

    Received 14 Mar 2024
  15. Decided - Granted6/2021/2708/TPO

    Reduce 1 x English Oak tree (T1009) by up to 4m and remove deadwood over 25mm in diameter Remove deadwood on 3 x Sessile Oak trees (T1019, T1020, T1025) Fell 1 x Ash tree (T1024) Remove all deadwood on 7 x English Oak trees (T1054, T1063, T1067, T1068, T1072, T1077, T1078) Prune 1 x Hornbeam tree (T1101) to give 2m clearance to roof line Fell 1 x Hornbeam tree (T1106) Reduce 1 x English Oak tree (T1109) by 2m Crown lift 1 x Hornbeam tree (T1093) Crown lift 1 x Laurel, prunus laureocerassus, Holly Ilex aquifolium saplings, Hornbeam Carpinus saplings and Oak saplings (T1081) covered by TPO

    Oaklands College The Campus Welwyn Garden City AL8 6AH

    Received 20 Sept 2021
  16. Decided - Granted6/2019/0541/COND

    Submission of details pursuant to condition 1 (Material) on planning permission 6/2018/0737/FULL

    61 London Road Woolmer Green Knebworth SG3 6JE

    Received 8 Mar 2019
  17. Decided - Granted6/2019/2506/FULL

    Erection of a single storey front, side and rear extension

    126 Great North Road Hatfield AL9 5JN

    Received 8 Oct 2019
  18. Decided - Refused6/2017/0360/PN8

    Prior approval for the erection of a single storey rear extension measuring 7.5m. in depth, 4.0m. in height and 3.0 to the eaves.

    4 Firway Welwyn AL6 0RD

    Received 24 Feb 2017
  19. Decided - Granted6/2016/1794/HOUSE

    Erection of part two storey side and rear, part single storey rear extension following demolition of existing single storey extension

    127 Peplins Way, Brookmans Park, Hatfield, AL9 7UT

    Received 1 Sept 2016
  20. Decided - Granted6/2020/2240/EMT

    Reduce 1 x Beech 2.5m height and 3m width Fell 2 x Laburnum to ground level Reduce 1 x Copper Beech by 2.5m height & width.

    10 Mannicotts Welwyn Garden City AL8 7BW

    Received 2 Sept 2020
  21. Under Consideration6/2026/1022/VAR

    Variation of condition 2 (approved plans) on planning permission 6/2025/1670/HOUSE

    91 The Ryde Hatfield AL9 5DN

    Received 10 Jun 2026
  22. Decided - Granted6/2021/0332/EM

    Erection of a detached garden room, with toilet and new path from house to garden.

    17 Monkswood Welwyn Garden City AL8 7EF

    Received 3 Feb 2021
  23. Decided - Granted6/2020/2990/HOUSE

    New replacement double glazed timber windows and doors. Altered opening to accommodate new bifolding doors.

    Ayot Farm Bibbs Hall Lane Welwyn AL6 9BY

    Received 13 Nov 2020
  24. Decided - Granted6/2020/0894/COND

    Submission of details pursuant to condition 16 (external lighting) on planning permission 6/2018/2552/FULL

    Maynard House The Common Hatfield AL10 0NF

    Received 17 Apr 2020

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.

  • 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.

  • 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.

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