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England · Local authority

Welwyn Hatfield planning applications

PlanningTrack collects planning applications and decisions from the public planning register of Welwyn Hatfield Borough Council. Search an address, application reference or proposal. Official Welwyn Hatfield website

Collected application statistics

Collected records · All available dates
40,154Searchable applications
303Recorded as pending
86%Approval rate · 33,678 approved or refused records
4,802Refused applications

28,876 approved · 4,802 refused · 2,208 withdrawn. Received dates in our records: 29 Apr 1948 to 26 Oct 2026. Most recent record check: 3 Nov 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2022/0307/HOUSE

    Erection of single storey rear extension and the reinstatement for an existing wall.

    25 Birds Close Welwyn Garden City Hertfordshire AL7 4AR

    Received 9 Feb 2022
  2. Decided - WithdrawnN6/2008/1205/FP

    ERECTION OF TWO STOREY DETACHED DWELLING WITH ASSOCIATED ACCESS AND PARKING

    Rear of 26 Great North Road Welwyn AL6 0PS

    Received 15 Jul 2008
  3. Decided - Granted6/2018/2705/EM

    Erection of single storey rear extension with installation of 3x rooflights

    42 Uplands Welwyn Garden City AL8 7EW

    Received 22 Oct 2018
  4. Decided - GrantedN6/2014/1773/TP

    Reduce Hornbeam tree by 25%

    19 Scholars Mews, Welwyn Garden City, AL8 7JQ

    Received 10 Jun 2014
  5. Decided - Refused6/2016/0677/EM

    Loft conversion

    17A Mill Green Road, Welwyn Garden City, AL7 3UX

    Received 12 Apr 2016
  6. Appeal Decided - Dismissed6/2017/1653/HOUSE

    Erection of a two storey side, single storey front and single storey rear extension

    5 Elmoor Avenue Welwyn AL6 9PG

    Received 27 Jul 2017
  7. Decided - Granted6/2022/0814/EMT

    1 x Lime tree to re-pollard down to 10ft (3m) where it has been done in the past.

    10 Homestead Court Welwyn Garden City AL7 4LY

    Received 4 Apr 2022
  8. Decided6/2023/1578/TC

    1 x Silver birch to reduce by 30% (due to excessive shading, possible potential limb failure that might damage the property due to its size).

    69 Attimore Road Welwyn Garden City AL8 6LG

    Received 31 Jul 2023
  9. Decided - Withdrawn6/2026/1031/HOUSE

    Erection of a part single storey, part two-storey rear extension, garage conversion, front porch extension, alterations to fenestration and external materials

    17 Sycamore Avenue Hatfield AL10 8LZ

    Received 12 Jun 2026
  10. Decided - RefusedN6/2008/1104/FP

    ERECTION OF FOUR BEDROOM DWELLING

    Land between Plas-y-coed and Littlebury Digswell Lane Welwyn AL6 0SN

    Received 4 Jul 2008
  11. Decided - GrantedW6/2007/1203/EM

    REPLACEMENT OF EXISTING TIMBER CONSTRUCTED OUTBUILDING WITH BRICK AND TIMBER SINGLE STOREY CLAD OUTHOUSE

    10 Brockett Close, Welwyn Garden City, AL8 7BN

    Received 8 Aug 2007
  12. Decided - GrantedS6/2014/2241/FP

    Erection of a summerhouse

    Skimpans Farmhouse, Bulls Lane, Hatfield, AL9 7PE

    Received 10 Oct 2014
  13. Decided - RefusedS6/2008/2114/FP

    ERECTION OF A GLAZED TWO STOREY SIDE EXTENSION

    1 HOOK LANE, NORTHAW, HERTFORDSHIRE, EN6 4DA

    Received 10 Nov 2008
  14. Decided - Granted6/2018/0686/EM

    Removal of grass at the front of the house, measuring 2.5m. Installation of vehicle hardstanding

    151 Boundary Lane Welwyn Garden City AL7 4EQ

    Received 10 Mar 2018
  15. Decided - Withdrawn6/2026/0876/EMT

    Tree Safety Inspection reports lists the works to the trees

    Great Dell Scout Hut Great Dell Welwyn Garden City AL8 7HY

    Received 18 May 2026
  16. DecidedN6/2009/1457/TC

    FELL AND STUMP REMOVAL OF EUCALYPTUS TREE

    16 BARLEYCROFT GREEN, WELWYN GARDEN CITY, HERTS, AL8 6JY

    Received 22 Jun 2009
  17. Decided - Granted6/2025/2094/COND

    Submission of details pursuant to condition number 5 (interim and temporary drainage measures) on planning permission 6/2024/1512/MAJ

    Elizabeth House Elizabeth Close Welwyn Garden City AL7 2JB

    Received 1 Oct 2025
  18. Decided - Granted6/2021/3219/EM

    Installation of solar panels onto rear, side and crown roof

    11 The Quadrangle Welwyn Garden City AL8 6SG

    Received 10 Nov 2021
  19. Decided - Granted6/2021/2173/HOUSE

    Erection of a part single storey rear and side to rear first floor extension

    55 Calder Avenue Brookmans Park Hatfield AL9 7AH

    Received 19 Jul 2021
  20. Decided - Granted6/2025/2041/PN8

    Prior approval for the erection of a single storey rear extension measuring 8m in depth, 3m in height, 3m to the eaves

    13 Greenfield Hatfield AL9 5HW

    Received 24 Sept 2025
  21. Decided - Granted6/2023/0474/EM

    Installation of domestic electric vehicle charging point

    49 Brockswood Lane, Welwyn Garden City, AL8 7BU

    Received 1 Mar 2023
  22. Decided - Granted6/2023/2123/EMT

    1 x Lawson Cypress to fell to ground level - tree has grown too large for location

    48 Brockswood Lane Welwyn Garden City AL8 7BG

    Received 19 Oct 2023
  23. Decided - Split6/2017/2430/COND

    Confirmation that conditions have been complied with S6/2003/0957/DE - 47-53 (odd) The Runway, Hatfield, AL10 9GL and 8A Queen Bee Court, Hatfield, AL10 9PR

    Former Hatfield Aerodrome Hatfield AL10

    Received 20 Oct 2017
  24. Decided - RefusedN6/2006/0327/FP

    ERECTION OF SINGLE STOREY REAR EXTENSION

    28 Lowerfield Welwyn Garden City AL7 3JT

    Received 16 Mar 2006

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

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    Planning application documents: what to read first

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    Planning permission drawings: how to read plans

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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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