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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
29,384Searchable applications
307Recorded as pending
87%Approval rate · 24,384 approved or refused records
3,251Refused applications

21,133 approved · 3,251 refused · 1,563 withdrawn. Received dates in our records: 1 Nov 1999 to 13 Oct 2026. Most recent record check: 18 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2021/0936/HOUSE

    Demolition of conservatory and erection of a replacement single storey rear extension

    38 Plough Hill Cuffley Potters Bar EN6 4DR

    Received 23 Mar 2021
  2. Decided - Granted6/2022/2494/EM

    Installation of solar panels on the rear roof

    3 Valley Road Welwyn Garden City AL8 7DG

    Received 31 Oct 2022
  3. Decided - Granted6/2022/1193/EMT

    Fell a Yew tree

    203 Handside Lane Welwyn Garden City AL8 6TE

    Received 24 May 2022
  4. Decided - Granted6/2026/1354/HOUSE

    Erection of single storey rear extension and alterations to opening following demolition of conservatory

    241 Daniells Welwyn Garden City AL7 1QD

    Received 31 Jul 2026
  5. Decided - Granted6/2022/2712/FULL

    Change of use of existing land adjacent to 37 Little Ganett from public amenity space to private residential garden

    37 Little Ganett Welwyn Garden City AL7 3DG

    Received 30 Nov 2022
  6. Decided - Granted6/2020/0439/VAR

    Variation of condition 8 (approved plans) on planning permission 6/2019/1862/FULL

    10 Woodland Way Welwyn AL6 0RZ

    Received 17 Feb 2020
  7. Decided - Granted6/2020/1975/HOUSE

    Erection of a two storey side/rear extension, loft conversion with rear dormer and front roof lights and single storey rear extension.

    109 Moffats Lane Hatfield AL9 7RP

    Received 8 Aug 2020
  8. Decided - Granted6/2017/1185/TPO

    Reduce Walnut tree (T1) by 33% and removal of Lime tree (T2) covered by TPO266 (2003)

    3 The Dell Digswell Welwyn AL6 0BQ

    Received 31 May 2017
  9. Decided - Granted6/2025/1393/COND

    Submission of details pursuant to condition number 1 (Arboricultural Method Statement and Tree Protection Strategy), 2 (Proposed Crown Roof), 3 (Samples of Materials) and 4 (Hard and Soft Landscaping) on planning permission 6/2025/0368/FULL

    6 Peace Grove Welwyn AL6 0RS

    Received 2 Jul 2025
  10. Decided - Granted6/2025/0903/TPO

    Fell 1 x dead Spruce Pine due to Beetle infestation Covered by TPO 260 W2

    Flat 1 The Red House 54 New Road Digswell Welwyn AL6 0AH

    Received 16 May 2025
  11. Decided6/2022/2071/TC

    1 x Oak to reduce lowest two right hand stems by 2m, Reduce overhanging branches to the rear by approximately 1.5m in width - The long lateral limbs are extending over neighbouring gardens 1 x Pear to remove 2 stems growing into hedge, reduce remaining upright by by approximately 2m. This is to create a more uniformed shape

    88 Woodhall Lane Welwyn Garden City AL7 3TF

    Received 6 Sept 2022
  12. Decided - Granted6/2026/0291/HOUSE

    Erection of single storey front extension

    52 Warren Way Digswell Welwyn AL6 0DN

    Received 19 Feb 2026
  13. Decided - Refused6/2018/0745/EM

    Erection of a single storey rear extension, following demolition of existing rear conservatory, loft conversion and installation of a rear dormer.

    10 Hurstlings Welwyn Garden City AL7 3LX

    Received 19 Mar 2018
  14. Decided - Granted6/2017/0041/PN8

    Prior approval for the erection of a single storey rear extension measuring 6m. in depth, 3.9m. in height and 2.9m. to the eaves

    11 Oaklands Avenue Brookmans Park Hatfield AL9 7UH

    Received 10 Jan 2017
  15. Decided - Refused6/2021/1132/LAWP

    Certificate of lawfulness for the erection of a single storey detached garage, single storey rear conservatory, and swimming pool with enclosure

    5 Bell Lane Brookmans Park Hatfield AL9 7AY

    Received 7 Apr 2021
  16. Decided - Granted6/2022/0046/HOUSE

    Erection of a new car port and single storey rear extension following demolition of exisiting garage

    9 East Ridgeway Cuffley Potters Bar EN6 4AW

    Received 7 Jan 2022
  17. Decided - Refused6/2021/2405/PN8

    Prior approval for the erection of a single storey rear extension measuring 5m in depth, 3.16m in height and 3m to the eaves.

    21 Heronfield Little Heath Potters Bar EN6 1JA

    Received 16 Aug 2021
  18. Decided - Granted6/2018/0710/TPO

    Reduce branches of 1 x Pine tree (T1) -covered by TPO 564 (2016) , fell 1 x Pine tree (T2) and reduce branches 1 x Pine tree (T3).

    2 Peregrine Way Hatfield AL10 9UP

    Received 15 Mar 2018
  19. Decided - Granted6/2026/0617/TPO

    T9 Weeping willow to remove limb with large hollow at approximately 2m SE side. T10 Weeping willow to remove large central limb growing towards police station. Covered by TPO 701 (2017)

    Hertfordshire Constabulary Central Area Headquarters And Hatfield Police Station Comet Way Hatfield AL10 9SJ

    Received 8 Apr 2026
  20. Appeal Decided - Allowed6/2024/1543/HOUSE

    Installation of swing opening gates on the existing drive

    8 Pennyfathers Lane WelwynAL6 0EN

    Received 13 Aug 2024
  21. Decided - Granted6/2022/2226/FULL

    Installation of a “private-wire” electricity cable between the Energy Centre, Tewin Road and Colt Technology Services Group Limited (Option 1).

    20 Black Fan Road Welwyn Garden City AL7 1QA

    Received 27 Sept 2022
  22. Decided - Granted6/2020/2193/EMT

    Removal of 2 conifers.

    62 Beehive Lane Welwyn Garden City AL7 4BP

    Received 27 Aug 2020
  23. Decided - RefusedN6/2014/1951/FP

    Erection of single storey side and rear extension to form attached annex following demolition of existing garage and outbuildings

    9 South Ley, Welwyn Garden City, AL7 4JP

    Received 3 Sept 2014
  24. Decided - Granted6/2021/3124/PN8

    Prior approval for the erection of a single storey rear extension measuring 4m in depth, 3.05m in height, and 2.75m to the eaves

    8 Welham Close Welham Green Hatfield AL9 7PP

    Received 2 Nov 2021

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

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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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