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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
20,541Searchable applications
298Recorded as pending
86%Approval rate · 16,599 approved or refused records
2,338Refused applications

14,261 approved · 2,338 refused · 1,047 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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. Decided6/2019/1792/TC

    T1 - Fell 1x Cherry Tree

    8 Densley Close Welwyn Garden City AL8 7JX

    Received 22 Jul 2019
  2. Decided - Granted6/2021/1305/EM

    Erection of a two storey side extension and insertion of window to existing front elevation

    1 Fearnley Road Welwyn Garden City AL8 6HW

    Received 22 Apr 2021
  3. Decided - Granted6/2025/0849/EMT

    Fell 1 x spruce in rear garden

    16 Downfields Welwyn Garden City AL8 6XR

    Received 6 May 2025
  4. Decided - Granted6/2018/2399/EM

    Reduce 2x Cherry Tree (G1) by 20% and 1x Mixed Species (G2) reduce height by 2m

    26 Rooks Hill Welwyn Garden City AL8 6ET

    Received 18 Sept 2018
  5. Decided - Granted6/2026/1198/HOUSE

    Erection of single storey front, side and rear extension, raising the existing roof and formation of rear dormer. Alterations to the fenestration, including, installation of new windows and doors and external rendering and cladding, following the demolition of garage and porch

    9 Mardley Hill Welwyn AL6 0UE

    Received 10 Jul 2026
  6. Decided - Granted6/2021/2002/EMT

    Lawson Cypress - fell

    8 Mayfield Welwyn Garden City AL8 7EL

    Received 1 Jul 2021
  7. Decided - Granted6/2019/0514/COND

    Submission of details pursuant to condition 2 (Landscaping) on planning permission 6/2018/2690/HOUSE

    18 Cranborne Road Hatfield AL10 8AP

    Received 7 Mar 2019
  8. Decided - Granted6/2024/2076/EM

    Log Cabin application

    2 Jonquil Close Welwyn Garden City AL7 3HX

    Received 28 Oct 2024
  9. Decided - Granted6/2018/1956/FULL

    Erection of new teaching block, replacement tarmac play areas and additional parking provision

    Stanborough School Lemsford Lane Welwyn Garden City AL8 6YR

    Received 25 Jul 2018
  10. Decided - Granted6/2025/2516/HOUSE

    Change to garden levels to accommodate extension

    57 Tolmers Road Cuffley Potters Bar EN6 4JG

    Received 4 Dec 2025
  11. Decided - Granted6/2024/0986/FULL

    Alterations to the west elevation and the installation of external terrace seating

    32 The Howard Centre Howardsgate Welwyn Garden City AL8 6HA

    Received 28 May 2024
  12. Decided6/2021/2505/TC

    Maple (T1) to reduce and maintain height by 50%

    7 Pitsfield Welwyn Garden City AL8 7SJ

    Received 26 Aug 2021
  13. Decided - Granted6/2024/1140/EMT

    Line of Western Red Cedar to reduce by approximately 2.5m in height. Lift section over garage entrance to 2.4m above ground level, lift to clear garage roof by 300mm. Trim width all over by 300mm

    16 Moorend Welwyn Garden City AL7 4QL

    Received 18 Jun 2024
  14. Decided - Granted6/2022/1958/HOUSE

    Erection of single storey rear infill extension

    2 Bader Close Welwyn Garden City AL7 2NA

    Received 22 Aug 2022
  15. Decided - Granted6/2021/2394/EMT

    Reduce 1 x Oak tree by 25% and crown lift 4 x Cherry trees, 5 x Hornbeam trees, 3 x Oak trees, 1 x Silver Birch, 1 x Holly tree, 1 x Hazel tree by 4m

    30 Coneydale Welwyn Garden City AL8 7RZ

    Received 13 Aug 2021
  16. Decided - Granted6/2024/1716/EMT

    1 x Apple to reduce by around 1m height and width to maintain size

    49 Blakemere Road, Welwyn Garden City, AL8 7PQ

    Received 6 Sept 2024
  17. Decided - Granted6/2026/0162/EMT

    Rear Garden 1 x Apple to reduce height by removing regrowth back to previous pruning points. Reduce width by around 1.5m - apple to reduce maintaining current pruning maintenance programme Front Honey Locust to reduce by 1.8m height and 1.5m width - to reduce size due to proximity to both houses. it growing both closer and blocking large amount of light in summer

    114 Parkway Welwyn Garden City AL8 6HN

    Received 30 Jan 2026
  18. Decided - Granted6/2020/3226/PN32

    Prior approval application for the demolition of existing offices and development of residential accommodation comprising 10 new flats

    Sylvia Adams House 24 The Common Hatfield AL10 0NB

    Received 1 Dec 2020
  19. Decided - Granted6/2018/0726/HOUSE

    Erection of two rear dormer windows to facilitate loft conversion.

    45 Daisy Drive Hatfield AL10 9FR

    Received 19 Mar 2018
  20. Decided - Refused6/2023/0658/COND

    Submission of details pursuant to the discharge of condition 8 (Open space management and maintenance plan) on planning permission 6/2021/2747/MAJ

    The Frythe Frythe Avenue Welwyn AL6 9GG

    Received 23 Mar 2023
  21. Decided6/2026/1277/TC

    Reduce 1 x lime tree by removing up to 3m of regrowth.

    36 Blakemere Road Welwyn Garden City AL8 7PJ

    Received 20 Jul 2026
  22. Decided - Granted6/2023/0285/EMT

    1 x Ash to reduce lateral branches by approximately 2.5m as they encroaching the neighbours boundary

    5 The Orchard Welwyn Garden City AL8 7PL

    Received 6 Feb 2023
  23. Decided - Refused6/2024/0533/HOUSE

    Erection of two storey side extension

    5 Larch Lane Welwyn AL6 0UJ

    Received 19 Mar 2024
  24. Decided - Granted6/2018/3041/HOUSE

    Erection of single storey side and rear extension with alterations to openings

    2 Stockbreach Close Hatfield AL10 0AX

    Received 28 Nov 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

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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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