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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
22,769Searchable applications
313Recorded as pending
86%Approval rate · 18,520 approved or refused records
2,608Refused applications

15,912 approved · 2,608 refused · 1,178 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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
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 - Withdrawn6/2023/0138/HOUSE

    Erection of a single storey rear extension, first floor side extension, front porch and internal alterations

    110 Guessens Road Welwyn Garden City Hertfordshire AL8 6RS

    Received 19 Jan 2023
  2. Decided6/2022/1405/TC

    T1 - Conifer; fell to ground level. This tree is cracking the rear pavement area and the roots stretch under the kitchen, affecting the foundations. The tree is considered too tall for its location and has low amenity value. T2 - Holly; fell to ground level. This tree is also cracking the patio at the back of the garden and the applicant wishes to erect a summer house there in the future. Also considered to be of low amenity value. G1 - Hawson Cypress; removal. This hedge is affecting the use of the driveway and the reasonable use of this space. The hedge is in a poor state and is very overgrown at present.

    64 Lemsford Lane Welwyn Garden City AL8 6YJ

    Received 17 Jun 2022
  3. Decided - Granted6/2017/1000/HOUSE

    Formation of basement and erection of a single storey rear extension to enclose existing rear covered walkway.

    Pulham House, Bedwell Park, Cucumber Lane, Essendon, Hatfield, AL9 6GJ

    Received 9 May 2017
  4. Decided - Granted6/2023/2438/EMT

    1 x Leyland cypress - remove to ground level as the tree is very close to the property and too big to reduce in width.

    58 Kirklands Welwyn Garden City AL8 7RD

    Received 4 Dec 2023
  5. Decided - Granted6/2022/0912/HOUSE

    Increase in height to the low part of an existing garden side wall and relocating the high part of an existing garden side wall.

    36 Coltsfoot Welwyn Garden City AL7 3HZ

    Received 19 Apr 2022
  6. Decided - Granted6/2018/0796/HOUSE

    Erection of a two storey front infill extension

    7 Strawmead Hatfield AL10 0JG

    Received 26 Mar 2018
  7. Decided - Granted6/2017/1225/HOUSE

    Erection of a first floor rear extension

    8 Longcroft Lane Welwyn Garden City AL8 6EA

    Received 5 Jun 2017
  8. Decided - Granted6/2020/0056/PN8

    Prior approval for the erection of a single storey rear extension measuring 4m in depth, 3m in height and 2.4m to the eaves

    6 Ryecroft Hatfield AL10 9DD

    Received 9 Jan 2020
  9. Decided - Granted6/2021/3180/HOUSE

    Installation of two dormer windows and three rooflights following the replacement of the existing roof to faciliitate the conversion of roof into habitable space.

    6 Holloways Lane Welham Green Hatfield AL9 7NP

    Received 8 Nov 2021
  10. Decided - Withdrawn6/2024/1319/FULL

    Change of use from amenity land to residential, to facilitate extension of existing dropped kerb

    37 Digswell Road Welwyn Garden City AL8 7PB

    Received 10 Jul 2024
  11. Decided - Refused6/2021/2151/PN27

    Prior approval for the construction of an additional storey to facilitate the enlargement of the dwellinghouse to a maximum of approximately 7.24m in height

    9 Codicote Road Welwyn AL6 9ND

    Received 15 Jul 2021
  12. Decided - Granted6/2021/0168/LAWE

    Certificate of lawfulness for the existing rear extension and loft conversion

    42 Skimpans Close Welham Green Hatfield AL9 7PB

    Received 20 Jan 2021
  13. Decided - Granted6/2020/1259/TPO

    Fell 1 x Scots Pines Tree [T2] (TPO 496) Reduce 1 x Scots Pines Tree [G1] the dead crown removing (TPO92 A1)

    2 Foxes Lane Cuffley EN6 4JB

    Received 4 Jun 2020
  14. Decided - Granted6/2023/0557/EMT

    2 poplar trees - to reduce by one third

    134 Lemsford Lane Welwyn Garden City AL8 6YP

    Received 13 Mar 2023
  15. Decided - Granted6/2020/0689/HOUSE

    Erection of a single storey rear extension

    114 Longcroft Lane Welwyn Garden City AL8 6EN

    Received 11 Mar 2020
  16. Decided - Granted6/2019/0269/EM

    Erection of single storey side and part single, part two storey rear extensions and erection of garden wall following demolition of existing wall

    The Old Manse 40 Barleycroft Road Welwyn Garden City AL8 6JU

    Received 6 Feb 2019
  17. Decided - Refused6/2019/1296/HOUSE

    Conversion of garage to an annexe

    7 Briars Lane Hatfield AL10 8EP

    Received 31 May 2019
  18. Decided - Granted6/2024/1142/HOUSE

    Erection of a single storey rear extension

    1 Gate House Close Woolmer Green SG3 6FE

    Received 18 Jun 2024
  19. Decided - Granted6/2020/1251/FULL

    Erection of three dwellings and formation of new access following demolition of existing dwelling and buildings

    Primrose Cottage, Kentish Lane, Hatfield, AL9 6EE

    Received 4 Jun 2020
  20. Decided - Refused6/2023/1414/TPO

    T1 Hornbeam-Fell 1 stem as it has been badly damaged by a vehicle and is unstable T2 Hornbeam-Remove 1 low branch as it is overhanging the road and larger vehicles will hit it if its left TPO 1040 G3

    36 Chestnut Walk Welwyn AL6 0SD

    Received 6 Jul 2023
  21. Decided - Granted6/2019/0308/FULL

    Erection of 1 x dwelling following demolition of existing dwelling

    26 Pine Grove Brookmans Park Hatfield AL9 7BS

    Received 11 Feb 2019
  22. Decided - Granted6/2017/2354/PN14

    Prior approval for the demolition of 2 x gasholders and boiler house

    Former Gasworks Site Tewin Road Welwyn Garden City AL7 1BW

    Received 13 Oct 2017
  23. Decided - Granted6/2017/0551/EM

    Extension to existing driveway

    35 Sherrardspark Road Welwyn Garden City AL8 7JY

    Received 20 Mar 2017
  24. Decided - Granted6/2020/2775/HOUSE

    Conversion of existing garage and addition of 1 x new parking space (part retrospective)

    80 Campion Road Hatfield AL10 9FT

    Received 23 Oct 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

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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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