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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
40,146Searchable applications
300Recorded as pending
86%Approval rate · 33,676 approved or refused records
4,802Refused applications

28,874 approved · 4,802 refused · 2,208 withdrawn. Received dates in our records: 29 Apr 1948 to 26 Oct 2026. Most recent record check: 1 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2017/1437/PN8

    Prior approval for the erection of a single storey rear extension measuring 4m in depth, 4m in height and 2.4m to the eaves

    69 Heathcote Avenue Hatfield AL10 0RQ

    Received 26 Jun 2017
  2. Decided - Refused6/2023/0787/LAWP

    Certificate of lawfulness for the erection of a single storey rear extension, two single storey side extension, single-storey basement underneath the original dwellinghouse and single-storey outbuilding

    Little Bedwell Cucumber Lane Essendon Hatfield Hertfordshire AL9 6JA

    Received 11 Apr 2023
  3. Decided - Granted6/2017/0985/EM

    Replacement of existing front tarmac driveway with block paving

    4 Fordwich Road Welwyn Garden City AL8 6EY

    Received 8 May 2017
  4. Decided - GrantedN6/2014/1381/DS

    Approval of details reserved by condition 3 (materials) and 4 (Car Parking Layout) of planning permission N6/2013/0469/FP

    128 The Commons, Welwyn Garden City, AL7 4SB

    Received 18 Jun 2014
  5. Decided - Granted6/2015/1758/COND

    Approval of details reserved by condition 7 (Parking Spaces) on S6/2014/0060/FP

    12 Somers Square, Welham Green, Hatfield, AL9 7PS

    Received 17 Aug 2015
  6. Decided - Refused6/2022/2738/HOUSE

    Erection of a part single, part two storey side extension, dormer window to the rear of the property, rooflights and side gable window following the demolition of the existing conservatory

    56 Mimram Road Welwyn AL6 9HA

    Received 2 Dec 2022
  7. Decided - Granted6/2017/2007/LAWP

    Certificate of lawfulness for the installation of 6 roof lights to facilitate loft conversion

    24 Ayot Green Ayot St Peter Welwyn AL6 9AB

    Received 7 Sept 2017
  8. Decided - Granted6/2026/0355/EMT

    1 x Cherry plum to reduce to approximately 3m above ground level, leaving a framework for the tree to grow on from

    34 Rosedale Welwyn Garden City AL7 1DR

    Received 26 Feb 2026
  9. Decided - Granted6/2016/1724/HOUSE

    Alteration to rear elevation and installation of french doors

    1 Bradshaws Hatfield AL10 9QS

    Received 24 Aug 2016
  10. Decided - Refused6/2017/2497/LAWP

    Certificate of Lawfulness for the erection of a single storey rear extension

    5 Bacons Drive Cuffley Potters Bar EN6 4EF

    Received 30 Oct 2017
  11. Decided - RefusedN6/2012/2564/FP

    Erection of two storey rear extension following removal of existing conservatory

    53 Cypress Avenue, WELWYN GARDEN CITY, AL7 1HN

    Received 7 Dec 2012
  12. Decided - Granted6/2022/0246/HOUSE

    Erection of a single storey rear extension.

    6 Broadleaf Grove Welwyn Garden City AL8 7AZ

    Received 3 Feb 2022
  13. Decided - Granted6/2024/1705/FULL

    Erection of a single storey rear extension to existing church building to provide a larger kitchen and additional storage

    140 Cole Green Lane Welwyn Garden City AL7 3JE

    Received 5 Sept 2024
  14. Decided - Granted6/2020/1367/HOUSE

    Erection of timber gazebo in rear garden

    3 Youngs Rise Welwyn Garden City AL8 6RT

    Received 15 Jun 2020
  15. Decided - Granted6/2023/0318/PN8

    Prior approval for the erection of a single storey rear extension measuring 5m in depth, 2.56m in height, 2.30m to the eaves with rooflights and alterations to existing openings to side elevation, following demolition of existing conservatory and outbuildings

    36 Birchwood Close Hatfield AL10 0PP

    Received 9 Feb 2023
  16. Decided - WithdrawnS6/2015/1057/FP

    Duplicate of S6/2015/1047/FP

    8 Thrush Lane, Potters Bar, EN6 4JU

    Received 18 May 2015
  17. Decided - GrantedS6/2007/1991/FP

    RELOCATION OF THE EXISTING SECURITY KIOSK AND GATES, NEW SECURITY FENCE TO BOUNDARY AND GATES TO PUMP HOUSE

    NORTH MYMMS PARK, TOLLGATE ROAD, NORTH MYMMS, HATFIELD, HERTFORDSHIRE, AL9 7TR

    Received 27 Dec 2007
  18. Decided - Refused6/2017/2533/HOUSE

    Erection of two storey side extension, alterations to front porch and installation of 2 x dormer windows and 2 x roof lights to facilitate loft conversion, following demolition of existing garage

    58 Northaw Road East Cuffley Potters Bar EN6 4LZ

    Received 1 Nov 2017
  19. Decided - GrantedW6/2014/1724/TE

    Removal of dead Walnut tree

    66 Valley Road, Welwyn Garden City, AL8 7DN

    Received 5 Aug 2014
  20. Decided - GrantedW6/2014/0035/EM

    Retention of block paving

    21 Parkfields, Welwyn Garden City, AL8 6EE

    Received 13 Jan 2014
  21. Decided - Granted6/2015/2171/EM

    Formation of vehicle hardstanding

    2 Great Break, Welwyn Garden City, AL7 3EZ

    Received 20 Oct 2015
  22. Decided - Granted6/2016/1992/EM

    Raise the garage brick parapet wall by two courses on Side & front elevations

    13 Roundwood Drive, Welwyn Garden City, AL8 7JZ

    Received 20 Sept 2016
  23. Decided - Granted6/2021/3501/HOUSE

    Erection of first floor extension

    Little Heath Farm Cottage Great North Road Little Heath Potters Bar EN6 1LA

    Received 20 Dec 2021
  24. Decided - Granted6/2020/1051/LAWE

    Certificate of lawfulness for a conservatory which is used in conjunction with the dwellinghouse (C3)

    1 Aldbury Grove Welwyn Garden City AL7 2LB

    Received 12 May 2020

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

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How to search planning applications

Guides to planning records

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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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