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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
20,358Searchable applications
298Recorded as pending
86%Approval rate · 16,458 approved or refused records
2,316Refused applications

14,142 approved · 2,316 refused · 1,035 withdrawn. Received dates in our records: 5 Jan 2005 to 30 Sept 2026. Most recent record check: 12 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2022/0120/PN8

    Prior approval for erection of a single storey rear extension 4m in depth, 2.57m to the eaves and 2.87m in height to flat roof.

    41 Broomfield Road Welwyn AL6 9DL

    Received 18 Jan 2022
  2. Decided - Granted6/2022/1044/HOUSE

    Installation of 2 concrete piers finshed in render to support black metal rail.

    51a New Road Digswell Welwyn AL6 0AQ

    Received 5 May 2022
  3. Decided - Granted6/2022/0365/LB

    Refurbishment and internal alteration works with fenestration alterations to existing property

    9-11 Church Street Welwyn AL6 9LN

    Received 16 Feb 2022
  4. Decided6/2021/0362/TPO

    Reduce 1 x Sycamore (T1) by 30%

    58 Digswell Park Road Welwyn Garden City AL8 7NS

    Received 5 Feb 2021
  5. Decided - Granted6/2023/1373/EMT

    Fell Ash tree, marked as Ash tree 1, in rear garden due to Ash dieback

    17 High Oaks Road Welwyn Garden City AL8 7BJ

    Received 3 Jul 2023
  6. Decided - Granted6/2020/2485/HOUSE

    Double storey side extension, part raising of roof ridgeline, new fenestration and internal alterations.

    1 Woodacre Drive Welwyn AL6 0UA

    Received 29 Sept 2020
  7. Decided - Granted6/2023/0903/HOUSE

    Formation of new dormer window following the removal of existing dormer, alterations to the fenestration, removal of tile hanging and installation of new weatherboarding on the main dwelling

    50 Hertford Road Digswell Welwyn AL6 0DB

    Received 27 Apr 2023
  8. Decided - Granted6/2018/2112/EM

    1x Maple tree crown reduce by 50% to maintain size

    6 Pentley Park Welwyn Garden City AL8 7RU

    Received 10 Aug 2018
  9. Decided6/2022/1512/TC

    1 x Apple to reduce by 1m height & width

    90 Handside Lane Welwyn Garden City Hertfordshire AL8 6SN

    Received 28 Jun 2022
  10. Decided - Granted6/2025/2392/COND

    Submission of details pursuant to condition number 1 (landscaping scheme) and 3 (tree maintenance) on planning permission 6/2025/1334/HOUSE

    45 Osborne Road Little Heath Potters Bar EN6 1SB

    Received 14 Nov 2025
  11. Decided - Granted6/2024/0556/HOUSE

    Erection of a part single, part two-storey rear extension, single storey side extension, part garage conversion and alterations to existing external openings following demolition of existing conservatory and single storey rear extension

    22 Elmwood Welwyn Garden City AL8 6LE

    Received 21 Mar 2024
  12. Decided - Granted6/2021/2293/HOUSE

    Erection of single storey outbuilding to rear for use as garden building

    2 Greenways Digswell Welwyn AL6 0EE

    Received 2 Aug 2021
  13. Decided - Refused6/2021/2950/HOUSE

    Erection of a new swimming pool house, associated works to and extension of the existing boundary wall and installation of double gates.

    9 Northaw Place Coopers Lane Northaw Potters Bar EN6 4NQ

    Received 14 Oct 2021
  14. Decided - Granted6/2024/0218/HOUSE

    Erection of a single storey timber clad garden building to be used as a home gym

    Plot 2 The Cullinan 36 The Ridgeway Cuffley Potters Bar EN6 4AX

    Received 5 Feb 2024
  15. Decided - Granted6/2018/2655/EM

    Fell 1 x Cherry tree

    4A Honeycroft Welwyn Garden City AL8 6HR

    Received 16 Oct 2018
  16. Decided - Granted6/2026/0909/ADV

    Erection of an electronic advertising display following removal of existing non-illuminated signage

    The Galleria Land Securities Comet Way Hatfield AL10 0XR

    Received 21 May 2026
  17. Decided - Granted6/2023/2361/HOUSE

    External rendering of dwelling and erection of front porch with window, new front door.

    64 Carvers Croft Woolmer Green Hertfordshire SG3 6LX

    Received 22 Nov 2023
  18. Decided - Granted6/2024/0201/TPO

    2 x Oak Trees to fell- One is leaning towards the railway line and both trees have black mushroom fungus in the crown and on the stems

    61 Peplins Way Brookmans Park AL9 7UR

    Received 31 Jan 2024
  19. Decided - Granted6/2024/0102/HOUSE

    Erection of single storey side extension

    37 Osborne Road Little Heath Potters Bar EN6 1SD

    Received 15 Jan 2024
  20. Decided - Granted6/2020/3417/PN8

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

    4 Hawkshead Lane Hatfield AL9 7TB

    Received 17 Dec 2020
  21. Decided - Granted6/2021/1114/EM

    Replacement windows to front and rear elevations, to swap rear back door for window and infill. New forward projecting front door layout including bricking up of existing small window and replacement UPVC cladding to front and rear elevations.

    10 Broomhills Welwyn Garden City AL7 1RF

    Received 6 Apr 2021
  22. Decided - Granted6/2018/1845/HOUSE

    Retention of rear extension to garage and rear ground floor infill

    34 Parkway Welwyn Garden City AL8 6HQ

    Received 12 Jul 2018
  23. Decided - Granted6/2019/2274/HOUSE

    Erection of single storey rear extension following demolition of conservatory

    11 Mount Pleasant Close Hatfield AL9 5BZ

    Received 13 Sept 2019
  24. Decided - Withdrawn6/2018/0340/LB

    Erection of garden room

    11 Wilkins Green Lane Hatfield AL10 9RT

    Received 31 Jan 2018

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.

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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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