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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
40,118Searchable applications
300Recorded as pending
86%Approval rate · 33,650 approved or refused records
4,801Refused applications

28,849 approved · 4,801 refused · 2,206 withdrawn. Received dates in our records: 29 Apr 1948 to 26 Oct 2026. Most recent record check: 30 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2021/2664/COND

    Submission of detail pursuant to condition 1 (materials) on planning permission 6/2021/1099/HOUSE

    35 Mardley Hill Welwyn AL6 0TT

    Received 14 Sept 2021
  2. Decided - Granted6/2020/1805/EM

    Garage conversion into study with downstairs toilet. Replace garage door with double glazed windows unit.

    1A Coltsfoot Welwyn Garden City AL7 3HZ

    Received 22 Jul 2020
  3. Decided - Granted6/2021/2645/HOUSE

    Alterations to fenestrations, replacement of garden fence and small area of garden excavated

    7 Strawberry Field Hatfield AL10 8LS

    Received 10 Sept 2021
  4. Decided - GrantedN6/2007/0897/FP

    ERECTION OF A REAR CONSERVATORY

    3 Elderfield Welwyn Garden City AL7 1FN

    Received 19 Jun 2007
  5. Decided - Granted6/2018/2007/COND

    Submission of details pursuant to condition 2 (details of materials for balcony and roof) on planning permission 6/2017/1573/FULL

    45 Corners Welwyn Garden City AL7 1RN

    Received 31 Jul 2018
  6. Decided - Granted6/2016/1602/PN8

    Prior approval for the erection of single storey rear extension measuring 3.25m depth, 3.6m high and 2.3m eaves height following demolition of existing conservatory

    103 Birchwood Avenue Hatfield AL10 0PT

    Received 4 Aug 2016
  7. Decided - Granted6/2017/1455/ADV

    Installation of 1 x Internally Illuminated Fascia Sign and 1 x Internally illuminated projecting Sign

    25-27 Town Centre Hatfield AL10 0JT

    Received 4 Jul 2017
  8. Decided - GrantedN6/2006/0236/FP

    ERECTION OF REAR CONSERVATORY

    17 The Holt Welwyn Garden City AL7 2HU

    Received 24 Feb 2006
  9. Decided - Granted6/2025/0617/HOUSE

    Erection of single storey rear ground floor extension, first floor rear extension, installation of skylight, alterations to the fenestration, portico and erection of new boundary front wall with railings and gate

    14 Upland Drive Brookmans Park AL9 6PS

    Received 31 Mar 2025
  10. Decided - GrantedN6/2004/0727/FP

    SINGLE STOREY REAR EXTENSION

    33 Fordwich Road Welwyn Garden City AL8 6EY

    Received 13 May 2004
  11. Decided - SplitS6/2014/0982/DS

    Approval of details reserved by conditions 3 (materials), 4 (soft landscaping), 5 (highway changes), 6 (Green Close widening), 8 (contamination report) and 13 (bin stores) of planning permission S6/2013/0830/MA

    Land at Green Close/Station Road, Brookmans Park, Hatfield, AL9 7ST

    Received 1 May 2014
  12. Decided - Withdrawn6/2017/0924/LB

    Erection of a detached garage

    3 Mill Green Cottages Mill Green Bush Hall Lane Hatfield AL9 5PB

    Received 2 May 2017
  13. Decided - Withdrawn6/2020/3058/EMT

    Removal of x4 Conifer trees

    40 Uplands, Welwyn Garden City, AL8 7EW

    Received 18 Nov 2020
  14. Decided - GrantedS6/2004/1258/FP

    ERECTION OF TWO STOREY REAR EXTENSION

    67 Pine Grove Brookmans Park Hatfield AL9 7BL

    Received 18 Aug 2004
  15. Decided - GrantedS6/2008/0360/FP

    ERECTION OF SINGLE STOREY FRONT EXTENSION

    NORTHAW CHURCH OF ENGLAND SCHOOL, VINEYARDS ROAD, NORTHAW, POTTERS BAR, HERTFORDSHIRE, EN6 4PB

    Received 22 Feb 2008
  16. Decided - Refused6/2025/0717/LAWP

    Certificate of lawfulness to make the garage suitable for use as a workshop to prepare food

    28 Mendlesham Welwyn Garden City AL7 2QG

    Received 15 Apr 2025
  17. Decided - Refused6/2017/0575/HOUSE

    Erection of two storey front, side and rear extensions following demolition of existing front porch

    32 Bramble Road Hatfield AL10 9SA

    Received 21 Mar 2017
  18. Decided - Granted6/2017/0272/TPO

    Reduce Ash tree T1 by 3m on height and 2.5m on width - Conservation Area

    58 New Road Digswell Welwyn AL6 0AN

    Received 14 Feb 2017
  19. Decided - GrantedN6/2013/2658/S73A

    Variation of conditions 2 (Approved Plans) and 3 (Approved Materials) of planning permission N6/2011/1405/FP (Erection of new dwelling)

    216 Knella Road, Welwyn Garden City, AL7 3NW

    Received 17 Dec 2013
  20. Decided - Granted6/2021/3402/FULL

    Change of use of private residential dwelling (Use Class C3) to Children's Home (Use Class C2).

    2 Mulberry Mead Hatfield AL10 9EN

    Received 3 Dec 2021
  21. Decided - GrantedS6/2009/1166/FP

    ERECTION OF SINGLE STOREY REAR EXTENSION, LOFT CONVERSION INCORPORATING FIVE DORMERS AND REAR JULIET BALCONY AND NEW FRONT BAY WINDOW

    40 NORTHAW ROAD EAST, CUFFLEY, POTTERS BAR, HERTFORDSHIRE, EN6 4LL

    Received 1 Jun 2009
  22. Decided - Granted6/2020/2055/HOUSE

    Erection of a single storey rear extension and rear covered pergola.

    42 Longcroft Gardens Welwyn Garden City AL8 6JR

    Received 13 Aug 2020
  23. Decided - Granted6/2018/2305/HOUSE

    Installation of 3 x rear, 2 x front dormer windows and 1 x front rooflight and raising of roof height to facilitate conversion of loft to habitable space

    8 Mardley Hill Welwyn AL6 0TN

    Received 7 Sept 2018
  24. Decided - GrantedS6/2009/0462/FP

    RETENTION OF GARAGE CONVERSION TO HABITABLE ACCOMMODATION

    23 SWANLEY BAR LANE, LITTLE HEATH, POTTERS BAR, HERTFORDSHIRE, EN6 1NR

    Received 13 Mar 2009

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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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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