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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
40,297Searchable applications
283Recorded as pending
86%Approval rate · 33,821 approved or refused records
4,819Refused applications

29,002 approved · 4,819 refused · 2,219 withdrawn. Received dates in our records: 29 Apr 1948 to 29 Oct 2026. Most recent record check: 8 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 Counts reflect the last collected status; some records may be out of date.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 - Refused6/2018/0031/PN8

    Prior approval for the erection of a single storey rear extension measuring 4m in depth, 2.82m in height and 0m to the eaves

    240 Daniells Welwyn Garden City AL7 1QQ

    Received 3 Jan 2018
  2. Decided - GrantedS6/2015/0884/LUP

    Certificate of lawfulness for proposed loft conversion

    86 The Ryde, Hatfield, AL9 5DL

    Received 27 Apr 2015
  3. Decided - GrantedN6/2013/1834/TC

    T1, Chestnut 30% reduction of large limb over tennis court, T2, Lime removal of lowest limb over tennis court, T3, Laurel, reduce to a height of 10ft, T5, Beech lift to 5m, T6, Horse Chestnut fell, T7, Sycamore fell, T8, Cherry reduce large lateral limb by 2m, T9, Horse Chestnut fell, T10, Horse Chestnut 20% crown reduction to reshape, T11, Horse Chestnut 25% reduction, T12, Thuja fell, T13, Blue conifer fell

    Ayot Cottage, Hill Farm Lane, Ayot St Lawrence, WELWYN, AL6 9BT

    Received 12 Aug 2013
  4. Decided - Granted6/2016/1687/TPO

    Reduce T2 Hornbeam by 40% and shape crown, reduce T3 Sweet chestnut by 40% and shape crown, reduce T4 & T5 Oak by 40% and shape crown and reduce T6 Sweet Chestnut by 40% and shape crown covered by TPO 375

    19 Chestnut Walk Welwyn AL6 0SD

    Received 18 Aug 2016
  5. DecidedS6/2007/0380/LU

    CERTIFICATE OF LAWFULNESS FOR EXISTING USE OF DETACHED BUILDING AS A SINGLE DWELLINGHOUSE

    Tanum Farm Hawkshead Road Little Heath Potters Bar EN6 1LX

    Received 7 Mar 2007
  6. Decided - Granted6/2021/2969/PN8

    Prior approval for the erection of a single storey rear extension measuring 3.5m in depth, 2.9m in height and 2.9m to the eaves

    31 Wren Wood Welwyn Garden City AL7 1QF

    Received 15 Oct 2021
  7. Decided - Withdrawn6/2022/0623/HOUSE

    Converting loft space to habitable space

    45 School Lane Welwyn AL6 9PQ

    Received 16 Mar 2022
  8. Decided - Refused6/2020/3010/LAWE

    Certificate of lawfulness for the existing outbuilding

    51 Kentish Lane Hatfield AL9 6NG

    Received 16 Nov 2020
  9. Decided - Granted6/2024/0970/LAWP

    Certificate of Lawfulness for a proposed infill side extension

    26 Oaklea Welwyn AL6 0PU

    Received 23 May 2024
  10. Decided - Withdrawn6/2018/0120/TPO

    Reduce canopy of rear Oak tree by 30 %, reduce canopy of rear Walnut tree by 30 %, reduce rear Conifer tree by 3m and fell rear Conifer tree

    14 Eastor Welwyn Garden City AL7 1PN

    Received 12 Jan 2018
  11. Decided - WithdrawnN6/2014/0843/DS

    Approval of details reserved by condition 7 (external lighting) of planning permission N6/2009/1164/DE

    6 Little Burrow, Welwyn Garden City, AL7 4SW

    Received 16 Apr 2014
  12. Decided - Granted6/2016/1435/HOUSE

    Erection of two storey rear extension

    16 Holme Road Hatfield AL10 9LF

    Received 14 Jul 2016
  13. Decided - Granted6/2016/1698/HOUSE

    Conversion of garage roof from hip to gable end. Raise ridge height by 300mm. Addition of 2 dormer windows and 3 rooflights to facilitate conversion of roof space for Annex Room.

    Devan House 51 Harmer Green Lane Digswell Welwyn AL6 0AP

    Received 18 Aug 2016
  14. Appeal Decided - Dismissed6/2024/1398/HOUSE

    Erection of a first floor side and rear wrap around extension with Juliet balcony

    14 East View Essendon Hatfield AL9 6HJ

    Received 23 Jul 2024
  15. Decided - Refused6/2019/1150/HOUSE

    Erection of two storey rear extension and rendering of external walls (part retrospective)

    22 Selwyn Drive, Hatfield, AL10 9NJ

    Received 13 May 2019
  16. Decided - RefusedW6/2013/0993/EM

    Formation of additional crossover and alterations to front garden layout

    45 Elmwood, WELWYN GARDEN CITY, AL8 6LD

    Received 14 May 2013
  17. Decided - GrantedS6/2004/0174/FP

    ERECTION OF FRONT PORCH AND DETACHED GARAGE

    19 Parsonage Lane Welham Green Hatfield AL9 7LY

    Received 4 Feb 2004
  18. Decided6/2021/2070/TC

    1 x Beech to reduce by 1.5m height & width

    15 The Valley Green Welwyn Garden City AL8 7DQ

    Received 8 Jul 2021
  19. Decided - GrantedN6/2008/0804/FP

    ERECTION OF SINGLE STOREY REAR EXTENSION

    39 London Road Woolmer Green Knebworth SG3 6JE

    Received 21 May 2008
  20. Decided - GrantedN6/2014/2575/FP

    Erection of ground and first floor rear and side extension

    13 Dudley Hill Close Welwyn AL6 0QQ

    Received 24 Nov 2014
  21. Decided - Granted6/2017/2087/EM

    Retention of wooden climbing frame

    11 Roundwood Drive Welwyn Garden City AL8 7JZ

    Received 15 Sept 2017
  22. Decided - Refused6/2021/3232/ADV

    Installation of 1 x fascia sign

    43 Howardsgate Welwyn Garden City AL8 6AP

    Received 11 Nov 2021
  23. Decided6/2020/3271/EIA

    Request for a screening opinion to determine whether an Environmental Statement is required

    Panshanger Aerodrome Track West From Panshanger Lane To Panshanger Aerodrome And Henry Wood Hertford SG14 2NH

    Received 3 Dec 2020
  24. Decided - GrantedS6/2004/0979/FP

    ERECTION OF REAR CONSERVATORY.

    17 Cornflower Way Hatfield AL10 9FY

    Received 25 Jun 2004

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 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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