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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
23,713Searchable applications
313Recorded as pending
86%Approval rate · 19,391 approved or refused records
2,703Refused applications

16,688 approved · 2,703 refused · 1,225 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2025/1534/EMT

    1 x Silver Birch to reduce height by 2m and laterals by up to 2m to suitable growth points, to reduce the one overextended limb growing towards road by 3m to suitable growth points. To crown lift to 3m from ground level.

    162 Thistle Grove Welwyn Garden City AL7 4AQ

    Received 16 Jul 2025
  2. Decided - Granted6/2021/2712/PN8

    Prior approval for the erection of a single storey rear extension measuring 5m in depth, 3m in height, 3.40m to the eaves

    18 Warren Close Hatfield AL10 0AL

    Received 20 Sept 2021
  3. Decided - Granted6/2018/1708/TPO

    Fell 1 x Conifer tree (T1)- Conservation area

    57 Attimore Road Welwyn Garden City AL8 6LG

    Received 25 Jun 2018
  4. Decided - Refused6/2016/1510/FULL

    Change of use of land from amenity land to residential

    Land to the rear of 154 Thistle Grove, Welwyn Garden City, AL7 4AQ

    Received 26 Jul 2016
  5. Decided - Granted6/2023/0247/LAWE

    Certificate of lawfulness for the existing use of HMO

    104 Dragon Road Hatfield AL10 9NX

    Received 1 Feb 2023
  6. Decided - Granted6/2016/2020/EM

    Reduce sycamore tree in the rear garden by 20%, fell Eucalyptus tree in the rear garden and fell Apple tree in rear garden

    35 High Oaks Road, Welwyn Garden City, AL8 7BT

    Received 26 Sept 2016
  7. Decided - Granted6/2021/0856/TPO

    Fell 2x diseased Scots Pines (TPO 496)

    2 Foxes Lane Cuffley Potters Bar EN6 4JB

    Received 16 Mar 2021
  8. Decided - Withdrawn6/2017/2286/EM

    Erection of single storey rear extension with glass canopy to the side, part garage conversion, alterations to existing side windows, new dormers, enlargement of side dormer & new rooflight to facilitate a loft conversion

    14 Roundwood Drive Welwyn Garden City AL8 7JZ

    Received 5 Oct 2017
  9. Decided - Granted6/2021/3207/EMT

    Winter prune and thin T1 & T2 - Apple trees and trim and tidy small buddleia

    19 Thumbswood, Welwyn Garden City, AL7 4QE

    Received 9 Nov 2021
  10. Decided - Refused6/2017/1369/LB

    Change of use of the existing grade 2 listed building from B1 office to 4 no. residential flats (C3) with associated internal and external alterations

    1, 3 and 5 Park Street Hatfield AL9 5AT

    Received 26 Jun 2017
  11. Decided - Granted6/2024/1959/COND

    Submission of details pursuant to Condition 1 (Landscaping Details) on planning permission 6/2023/0877/HOUSE

    7 Cranmer Close Little Heath Potters Bar EN6 1LB

    Received 11 Oct 2024
  12. Decided - Granted6/2024/0463/HOUSE

    Extension of existing driveway to make space for 2 extra cars

    154 Howlands Welwyn Garden City AL7 4RG

    Received 11 Mar 2024
  13. Decided - Granted6/2017/0042/HOUSE

    Erection of rear extension following demolition of existing conservatory

    22 The Gardens Brookmans Park Hatfield AL9 7UL

    Received 9 Jan 2017
  14. Decided - Granted6/2023/0576/EM

    Replacement of front door with composite door. Replace french doors to the side of the property, replace rear window and replace rear door and window with UPVC

    16 Warren Dale, Welwyn Garden City, AL8 7HN

    Received 14 Mar 2023
  15. Decided6/2018/0357/TPO

    Reduce crown of 2 x Sycamore trees (T1 - up to 3m and T3 - up to 2m), 1 x Robina tree (T2 - up to 2m), 1 x Yew tree (T4- up to 1m) and 1 x Plum tree (T5 - up to 2m) - Conservation Area

    58 Parkside House Mill Lane Welwyn AL6 9ES

    Received 31 Jan 2018
  16. Decided - Granted6/2026/0331/EM

    Repainting the exterior of the house like for like & repairing any cracks in the render, including the metalwork on the front window balcony

    4 Attimore Road Welwyn Garden City AL8 6LW

    Received 23 Feb 2026
  17. Decided - Granted6/2019/1050/EM

    Conversion of existing garage to playroom

    94 Cole Green Lane Welwyn Garden City AL7 3JA

    Received 30 Apr 2019
  18. Decided - Granted6/2025/0355/EMT

    1 x Lawson cypress to remove to ground level. Fell due to proximity to house. Client wants to replant something more suitable 1 x Hawthorn to reduce by approximately 1.2m height and 1m width - To retain size & shape of trees 1 x Apple to reduce by approximately 2m height and 1.2m width - To retain size & shape of trees

    80 Pentley Park Welwyn Garden City AL8 7SG

    Received 25 Feb 2025
  19. Decided6/2020/3377/TC

    Ground fell 5 x Ash (T1, T2, G7, T9, T11) and 3 x Sycamore (G6, T8, T10)

    Station Lodge 66 Great North Road Hatfield AL9 5AE

    Received 17 Dec 2020
  20. Decided - Granted6/2017/0004/ADV

    Installation of 1no non-illuminated sign (3912mm x 305mm)

    1 Woodside Road Digswell Welwyn AL6 0DS

    Received 4 Jan 2017
  21. Under Consideration6/2023/1452/EM

    Erection of chainlink fence or timber fencing to boundary following removal of hedge. To be considered alongside 6/2023/1051/EM

    33 Great Break, Welwyn Garden City, AL7 3EZ

    Received 12 Jul 2023
  22. Decided - Split6/2024/0902/COND

    Confirmation that Condition 4 (Materials), Condition 5 (landscape), Condition 9 (Recycling), Condition 12 (Water drainage), Condition 13 (Surface water), Condition 14 (Archaeological work), Condition 17 (Street lighting), Condition 19 (Cycle storage), Condition 20 (Highway) on Planning permission S6/2003/1137/OP have been discharged

    Land at former Hatfield Aerodrome Comet Way Hatfield Hertfordshire

    Received 14 May 2024
  23. Appeal Decided - Dismissed6/2019/0377/HOUSE

    Formation of vehicular crossover with the erection a rear garage

    9 Ashley Close Welwyn Garden City AL8 7LH

    Received 18 Feb 2019
  24. Decided - Granted6/2019/2310/HOUSE

    Erection of front extension, two storey side extension, part single part two storey rear extension and installation of 1x rear dormer to facilitate a loft conversion.

    54 Bluebridge Road Brookmans Park Hatfield AL9 7SA

    Received 18 Sept 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 permission drawings: how to read plans

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    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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