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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
19,327Searchable applications
298Recorded as pending
86%Approval rate · 15,605 approved or refused records
2,169Refused applications

13,436 approved · 2,169 refused · 981 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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. Decided - Withdrawn6/2025/1465/EMT

    Remove a tree in my front garden

    97 Pentley Park Welwy Garden City AL8 7SL

    Received 7 Jul 2025
  2. Decided - Granted6/2026/1212/EMT

    1 x Cherry to reduce by approximately 2.5m in height and 1.5m in width. Lift to 4m above ground level dominating garden and overhanging garage entranceway

    25 Rooks Hill Welwyn Garden City AL8 6EU

    Received 10 Jul 2026
  3. Decided - Granted6/2021/0524/EM

    Replacement of existing concrete driveway with compacted gravel, to match the existing front car space

    5 Salisbury Road Welwyn Garden City AL7 3RR

    Received 17 Feb 2021
  4. Decided - Granted6/2022/0280/EM

    Erection of single storey rear extension

    40 Springfields Welwyn Garden City AL8 6XN

    Received 8 Feb 2022
  5. Decided - Granted6/2026/1038/HOUSE

    Erection of a part two/single storey side and rear extension and new front porch following the demolition of existing single storey side extension and porch

    55 Garden Road Woolmer Green SG3 6JZ

    Received 15 Jun 2026
  6. Decided - Granted6/2018/2685/EM

    Reduce 1 x Birch tree by approximately 30%

    53 Crossway Welwyn Garden City AL8 7ED

    Received 19 Oct 2018
  7. Decided - Granted6/2021/0831/EMH

    Widen drive by 1.5m for 4.5m

    37 Marsden Green Welwyn Garden City AL8 6YD

    Received 15 Mar 2021
  8. Decided - Granted6/2021/1498/HOUSE

    Erection of a single storey rear extension and part garage conversion including insertion of new suntube into side elevation roof.

    12 Reeves Court Welwyn AL6 9FU

    Received 11 May 2021
  9. Decided - Granted6/2020/1526/TPO

    Fell 1 x Sycamore Tree (T1) (TPO Woodland G1)

    Bedwell End School Lane Essendon Hatfield AL9 6HL

    Received 29 Jun 2020
  10. Decided - Refused6/2020/2027/PN8

    Prior approval for the erection of a single storey rear extension measuring 8m in depth, 3.40m in height and 2.40m to the eaves.

    5 Swanley Bar Lane Little Heath Potters Bar EN6 1NN

    Received 10 Aug 2020
  11. Decided - Granted6/2025/2325/HOUSE

    Erection of a part two storey and single storey rear extension, part garage conversion including raising of roof and alterations to openings on side and rear elevations

    71 Valley Road Welwyn Garden City AL8 7DR

    Received 4 Nov 2025
  12. Decided - Granted6/2023/0459/EM

    Remove existing section of hawthorn hedge in front garden. Existing hedge is sparse with gaps. Replace with yew or hornbeam hedge.

    33 Crossway Welwyn Garden City AL8 7ED

    Received 28 Feb 2023
  13. Decided - Granted6/2023/2027/EMT

    1 x Lawson cypress - reduce by approximately 3.5m in height. Tree is becoming too large, dominates the garden and restricts light to numbers 4 and 6.

    2 Valley Road Welwyn Garden City AL8 7DF

    Received 2 Oct 2023
  14. Decided - Granted6/2021/1651/HOUSE

    Erection of a single storey rear extension following demolition of existing extension.

    43 Crossway Welwyn Garden City AL8 7ED

    Received 24 May 2021
  15. Decided - Granted6/2024/0489/TPO

    Crown reduction of 2-3m on northeastern side, to approximately in line with the patio. Crown thin of entire canopy by 25%. Lift to 4m agl on southwestern side. This work will reduce the amount of debris falling on the patio.

    33A Pine Grove Brookmans Park Hertfordshire AL9 7BP

    Received 13 Mar 2024
  16. Decided - Granted6/2026/0536/COND

    Submission of details pursuant to condition 1 (Arboricultural Impact Statement and Arboricultural Method Statement) on planning permission 6/2025/1790/HOUSE

    Essendon Lodge School Lane Essendon Hatfield AL9 6HD

    Received 24 Mar 2026
  17. Decided - Granted6/2020/2981/COND

    Submission of details pursuant to condition 2 (SUDS Drainage) on planning permission 6/2019/2782/VAR

    Plot 6000, Land Adjacent to Porsche Garage, Hatfield House, Hatfield Business Park, Hatfield, AL10 9UA

    Received 12 Nov 2020
  18. Decided - Split6/2021/2762/COND

    Submission of details pursuant to condition 27 (noise), on planning permission 6/2018/0171/MAJ

    Former Shredded Wheat Factory Welwyn Garden City AL8 6UN

    Received 23 Sept 2021
  19. Decided - Granted6/2021/2258/HOUSE

    Erection of single storey rear extension with insertion of roof light and additional French doors to existing rear elevation.

    21 Golden Dell Welwyn Garden City AL7 4EE

    Received 28 Jul 2021
  20. Decided - Refused6/2023/0284/EM

    Erection of a part single storey rear extension, part two storey rear extension and single storey side extension, following demolition of existing garage and ground floor extension, with alterations to openings

    72 Pentley Park Welwyn Garden City AL8 7SG

    Received 6 Feb 2023
  21. Decided - Refused6/2019/1716/PN8

    Prior approval for the erection of single storey rear extension measuring 3.5m deep, 3.8m in height and 2.6m to the eaves

    34 Crawford Road Hatfield AL10 0PE

    Received 9 Jul 2019
  22. Decided - Granted6/2021/3511/EM

    Erection of a single storey rear extension with canopy to replace existing conservatory

    3 Handside Green Welwyn Garden City AL8 6SQ

    Received 20 Dec 2021
  23. Decided - Granted6/2026/0140/COND

    Submission of details pursuant to condition 1 & 8 (Landscaping), condition 2 & 9 (Materials), condition 3 & 10 (Sustainability Statement), condition 4 & 11 (ASHP & PV Panels) and condition 5 & 12 (EV Chargers), on planning permission 6/2025/1656/RM following the grant of 6/2025/0350/OUTLINE

    Land Rear of 14 Great North Road Welwyn AL6 0PL

    Received 28 Jan 2026
  24. Decided - Granted6/2020/0067/EM

    Erection of single storey side extension with alterations to openings to include relocation of entrance door and part single storey rear extension to garage and installation of new garage door

    74 Rosedale Welwyn Garden City AL7 1DR

    Received 13 Jan 2020

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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