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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
24,755Searchable applications
313Recorded as pending
86%Approval rate · 20,302 approved or refused records
2,802Refused applications

17,500 approved · 2,802 refused · 1,307 withdrawn. Received dates in our records: 5 Jan 2005 to 2 Oct 2026. Most recent record check: 15 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2017/2942/HOUSE

    Erection of single storey and two storey rear extension. Installation of bi-folding doors, two rooflights plus a log burner with flue rising to high level from the play room below the existing and proposed roof pitch

    11 Longcroft Lane Welwyn Garden City AL8 6EB

    Received 20 Dec 2017
  2. Decided - Granted6/2018/2729/EM

    Reduce 2 x Hornbeam trees by 35%

    56 Blakemere Road Welwyn Garden City AL8 7PN

    Received 23 Oct 2018
  3. Decided - Refused6/2022/1277/HOUSE

    Erection of a single storey front extension, single, part two storey rear extension and alterations to openings

    9 Maryland Hatfield AL10 8DY

    Received 30 May 2022
  4. Decided - Granted6/2018/1385/LB

    Alterations to extract fans and windows arising from alterations to WC area

    Barn Theatre Barn Close Welwyn Garden City AL8 6ST

    Received 24 May 2018
  5. Decided - Granted6/2025/0072/EMT

    A twisted willow, roughly 11 years old, needs to be removed in it's entirety to make way for outbuilding development in our garden. The tree sits between a shed and a log cabin. I'm not sure of the height but it looks about as tall as our house. The tree also causes a lack of sunlight in our neighbours garden during the summer months and is now too big for us to manage ourselves.

    4 The Pastures Welwyn Garden City AL7 4PX

    Received 17 Jan 2025
  6. Decided - Granted6/2019/0114/COND

    Submission of details pursuant to condition 2 (Written scheme of archaeological investigation (WSI) on planning application 6/2018/2190/HOUSE

    The Old Vicarage North Mymms Park Tollgate Road North Mymms Hatfield AL9 7TN

    Received 21 Jan 2019
  7. Decided - Granted6/2019/2911/FULL

    Erection of a 3 storey rear extension and reconfiguration of existing building for B1 use with associated works

    68 Great North Road Hatfield AL9 5ER

    Received 19 Nov 2019
  8. Decided - Granted6/2020/3155/PN8

    Prior approval for the erection of a single storey rear extension 6m in depth, 3m in height and 2.72m to the eaves.

    8 Gorse Close Hatfield AL10 9DW

    Received 23 Nov 2020
  9. Decided - Granted6/2018/1980/FULL

    Erection of 1 x dwelling following demolition of existing dwellinghouse

    8 Mymms Drive Brookmans Park Hatfield AL9 7AF

    Received 26 Jul 2018
  10. Decided - Granted6/2021/1264/HOUSE

    Erection of two storey side extension

    55 Travellers Lane Hatfield AL10 8SB

    Received 19 Apr 2021
  11. Decided - Refused6/2020/0892/LB

    Erection of single storey extensions following demolition of existing garage and annexe structure

    Ayot Cottage Ayot St. Lawrence AL6 9BT

    Received 17 Apr 2020
  12. Decided - Granted6/2023/2433/FULL

    Erection of dining area extension to existing public house

    The Chequers 16 London Road Woolmer Green Hertfordshire SG3 6JP

    Received 4 Dec 2023
  13. Decided - Granted6/2018/2504/LAWE

    Certificate of lawfulness for existing carport

    East Lodge, Judge's Hill, Northaw, Potters Bar, EN6 4NL

    Received 1 Oct 2018
  14. Decided - Granted6/2016/0905/HOUSE

    Proposed front porch

    6 Flamingo Close Hatfield AL10 9LU

    Received 10 May 2016
  15. Under Consideration6/2026/1200/HOUSE

    Formation of front boundary gate with brick piers and erection of rear extension, rear orangery, side porch canopy, replacement front porch, alterations to the fenestration including replacement windows, infilling the garage door, replacement roof tiles, replacement pool in new location, bore hole, Installation of rooflights, swimming pond, formation of glass balustrade at the rear, flint cladding/masonary treatment, garden outbuildings including a workshop, gym, shepherds hut, sauna and greenhouse, ev charger and heat source pump

    98 Harmer Green Lane Digswell Welwyn AL6 0ES

    Received 10 Jul 2026
  16. Decided - Granted6/2016/1520/HOUSE

    Erection of two storey extension to front to incorporate new porch and new mansard style roof to incorporate new storey replacing existing roof

    20 Pine Grove, Brookmans Park, Hatfield, AL9 7BS

    Received 26 Jul 2016
  17. Decided - Granted6/2016/2631/EM

    Reduce Hornbeam tree by 30%

    7 Brockett Close Welwyn Garden City AL8 7BN

    Received 5 Dec 2016
  18. Decided - Granted6/2022/0724/EM

    Erection of new garden office to replace existing shed

    15 Walden Place Welwyn Garden City AL8 7PG

    Received 28 Mar 2022
  19. Decided - WithdrawnN6/2015/0660/TC

    Removal of Whitebeam tree

    14 Elm Gardens, Welwyn Garden City, AL8 6RY

    Received 9 Mar 2015
  20. Decided - Granted6/2019/1427/EM

    Erection of a part single, part two storey rear extension and associated alterations

    19 Barleycroft Road Welwyn Garden City AL8 6JX

    Received 12 Jun 2019
  21. Decided - Granted6/2016/0038/HOUSE

    Retention of detached garage, and alterations to roof to reduce the height.

    6B Hill Rise, Cuffley, Potters Bar, EN6 4EE

    Received 13 Jan 2016
  22. Decided - Granted6/2021/0871/EMT

    Reduce 2 x Cherry by 1.5m height and 1m width

    24 Sheepcote Welwyn Garden City AL7 4QD

    Received 17 Mar 2021
  23. Under Consideration6/2023/2417/FULL

    Erection of 6no 3 bedroom dwellings and new stables facility with associated exercise area/ring

    Firs Farm Stables Woodside Lane Hatfield AL9 6DF

    Received 30 Nov 2023
  24. Decided - Split6/2024/1760/COND

    Submission of details pursuant to condition 1 (traffic management plan), 2 (energy-efficiency) 3 (materials samples), 4 (crown roof) and 7 (electric vehicle charging point) on planning permission 6/2023/0911/FULL

    55 St Albans Road East Hatfield AL10 0EJ

    Received 12 Sept 2024

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

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    Planning application documents: what to read first

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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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