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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
23,302Searchable applications
313Recorded as pending
86%Approval rate · 19,013 approved or refused records
2,662Refused applications

16,351 approved · 2,662 refused · 1,201 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2023/2517/EM

    Replace glass lean-to roof with tiles

    5 Youngs Rise Welwyn Garden City AL8 6RT

    Received 18 Dec 2023
  2. Decided - SplitS6/2014/1422/DS

    Approval of details reserved by condition 18 (noise impact assessment) and 21 (railway boundary treatment) and 23 (renewable energy) of appeal decision APP/C1950/A/10/2142040 and condition 2 (samples) of planning permission S6/2013/0323/DE

    Former Mount Pleasant Depot, Mount Pleasant Lane, Hatfield, AL9 5BY

    Received 25 Jun 2014
  3. Decided - Granted6/2018/1459/EM

    Installation of rooflight

    219 Knightsfield Welwyn Garden City AL8 7QL

    Received 1 Jun 2018
  4. Decided - Granted6/2022/2149/EMT

    Tree A & Tree B - Fell flowering Cherry trees situated towards the northern corner of the rear garden, to clear the area of neglected shrubs between them and the northeast side of the property and plant a wild flower area. Tree B is situated approximately 1 metre from the boundary with 50 Woodside Rise. Both trees are in poor condition and considered that they are of limited public amenity value.

    5 Ashley Close Welwyn Garden City AL8 7LH

    Received 15 Sept 2022
  5. Decided - Granted6/2018/2444/LAWP

    Certificate of lawfulness for the erection of single storey side extension

    4 Ellenbrook Crescent Hatfield AL10 9RP

    Received 21 Sept 2018
  6. Decided - Granted6/2017/1709/HOUSE

    Erection of outbuilding in rear garden

    170 Crawford Road Hatfield AL10 0PA

    Received 3 Aug 2017
  7. Decided - Withdrawn6/2025/1659/LAWP

    Certificate of lawfulness for loft conversion involving the raising of the existing hip to gable and rear dormer window

    113 Heathcote Avenue Hatfield AL10 0RL

    Received 1 Aug 2025
  8. Decided - Granted6/2019/0972/COND

    Submission of details pursuant to condition 2 (Acoustic Report) on planning permission 6/2018/1922/FULL

    Premier Inn Stanborough Road Welwyn Garden City AL8 6DQ

    Received 18 Apr 2019
  9. Decided - Granted6/2020/1243/TPO

    Reduce 1 x Ash Tree [T1] by 2-3m Reduce 1 x Picea Tree [T2] shorten 1-2m lateral branches over roof 1m and deadwood removal Reduce 1 x Sycamore Tree [T3] by 2-3m Reduce 1 x Twin Ash Tree [T4] 2-3m Reduce 1 x Lime Tree [T5] by 3-4m Fell 1 x Sycamore Tree [T6] Covered by TPO 683 [2017] G1

    Claregate Thornton Road Little Heath Potters Bar EN6 1BY

    Received 3 Jun 2020
  10. Decided - Withdrawn6/2017/2655/TPO

    Fell 1x Pine (Conservation Area)

    40 Applecroft Road Welwyn Garden City AL8 6LA

    Received 14 Nov 2017
  11. Decided - Refused6/2022/2811/ADV

    Installation of x2 non-illuminated signs, 1 externally illuminated sign, retractable canopy, barriers at front of the restaurant and 1 externally illuminated projection sign (retrospective)

    15 Howardsgate Welwyn Garden City AL8 6BU

    Received 12 Dec 2022
  12. Decided - Granted6/2021/2704/EM

    Erection of a single storey rear extension

    20 Blakemere Road Welwyn Garden City AL8 7PJ

    Received 17 Sept 2021
  13. Decided - Granted6/2026/0205/MAJ

    Erection of indoor sports hall, provision of external sports field viewing bank, and associated ground works, and hard and soft landscaping

    Monks Walk School Knightsfield Welwyn Garden City AL8 7NL

    Received 5 Feb 2026
  14. Decided - Granted6/2022/2357/HOUSE

    Installation of vehicle crossover and creation of driveway

    59 Northaw Road West Northaw Potters Bar EN6 4NP

    Received 11 Oct 2022
  15. Decided - Granted6/2016/2707/HOUSE

    Erection of garage and first floor gym

    7 Lanercost Close Welwyn AL6 0RW

    Received 22 Dec 2016
  16. Decided - Granted6/2024/0663/EM

    Installation of shed following removal of existing sheds

    36 Walnut Grove Welwyn Garden City AL7 4EU

    Received 8 Apr 2024
  17. Decided - Granted6/2022/2386/TPO

    To reduce 1 X Beech tree in rear garden in height by a maximum of 1.5 metres, thin crown by 15% and cut back the lateral branches to allow 1.5 metres from clearance of the house. Tree covered by TPO 108

    17 Mardley Wood Welwyn AL6 0UY

    Received 13 Oct 2022
  18. Decided - Granted6/2019/2747/EM

    Retention of summer house

    8 Bushey Close Welwyn Garden City AL7 3HD

    Received 30 Oct 2019
  19. Decided - Granted6/2017/0534/FULL

    Installation of 2 steel storage containers following the removal of two existing storage buildings.

    Scout Hut, Northaw Road West, Northaw, Potters Bar, EN6 4NP

    Received 17 Mar 2017
  20. Decided - Granted6/2022/0294/LAWP

    Certificate of lawfulness for the erection of rear outbuilding

    9 Monkswood Welwyn Garden City AL8 7EF

    Received 9 Feb 2022
  21. Decided6/2024/0382/TPO

    T1 Oak - remove epicormic growth to maintain current pruning practice allowing driveway and garage area to remain clear T2 1 x Oak - reduce by approx 2m height and width and remove lower branches up to the crown break to maintain tree to fromer size, approx 6 years ago. Removing lower limbs to allow more light to extension area, while also lessening the debris fall on the roof T3 1 x Oak - reduce by 2m in height and width and remove epicormic growth up to crown break to create a more compact canopy and bring the tree in line with other trees whilst allowing more light into the lower shrub bed and garden area T4 1 x Oak - reduce by approximately 2m in height and width and remove epicormic growth up to crown break to maintain tree to former size, approx 6 years ago, whilst allowing more light into rear part of the property

    7 Densley Close Welwyn Garden City AL8 7JX

    Received 27 Feb 2024
  22. Decided - Granted6/2021/2112/EMT

    1 x Beech to reduce by 1.5m height & width

    15 The Valley Green Welwyn Garden City AL8 7DQ

    Received 13 Jul 2021
  23. Decided - Refused6/2025/2399/LAWP

    Certificate of lawfulness for a detached outbuilding in the rear garden

    74 Warrengate Road North Mymms Hatfield AL9 7TY

    Received 14 Nov 2025
  24. Decided - Granted6/2019/0109/PN8

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

    24 Four Acres Welwyn Garden City AL7 4NW

    Received 18 Jan 2019

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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    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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