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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29,002 approved · 4,819 refused · 2,219 withdrawn.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: 9 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 Counts reflect the last collected status; some records may be out of date.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 - GrantedN6/2013/2279/LB

    Installation of replacement windows

    102 Knightsfield, Welwyn Garden City, AL8 7HB

    Received 25 Oct 2013
  2. Decided - Granted6/2023/0982/EMT

    Reduce 1 x Oak tree by 50%

    79 Mill Green Road, Welwyn Garden City, AL7 3UX

    Received 9 May 2023
  3. Decided - Granted6/2023/1469/LB

    Works to roof and skylight to replace, repair and/or re-use materials to match existing materials

    1 Woodhill House Kentish Lane Hatfield AL9 6JY

    Received 14 Jul 2023
  4. Decided - Granted6/2017/0930/TPO

    Reduce Oak tree by 20% covered by TPO 294 (2004)

    6 Wendover Drive Welwyn AL6 9LT

    Received 4 May 2017
  5. Decided - Granted6/2016/2239/TPO

    Reduce Hornbeam tree by 10ft and remove overhanging branch plus remove three branches on Oak tree - Conservation Area

    14 Mandeville Rise Welwyn Garden City AL8 7JU

    Received 11 Oct 2016
  6. Decided - Granted6/2023/2555/HOUSE

    Replacement stone portico to front porch with insertion of new windows to front and new door to rear, render surround to front windows, change of rear flat roof to lead covering, change of render colour, new stone cills to rear, replacement of chimneys, windows, doors, facia, bargeboards and gutters

    106 Brookmans Avenue Brookmans Park Hertfordshire AL9 7QQ

    Received 21 Dec 2023
  7. Decided - Refused6/2019/2635/EM

    Retention of garden shed and fence

    43 Moorlands Welwyn Garden City AL7 4PY

    Received 21 Oct 2019
  8. Decided - GrantedW6/2007/0299/EM

    ERECTION OF GROUND FLOOR EXTENSION.

    19 Great Conduit, Welwyn Garden City, AL7 2DH

    Received 23 Feb 2007
  9. Decided6/2018/2486/TPO

    Reduce 1x Copper Beech tree height by 2.5m and width by 2m - Conservation Area

    31 Bridge Road Welwyn Garden City AL8 6UG

    Received 27 Sept 2018
  10. Decided - Granted6/2018/1778/EM

    Erection of single storey rear extension to existing garage

    27 Woodland Rise Welwyn Garden City AL8 7LJ

    Received 6 Jul 2018
  11. Decided - Granted6/2023/0031/LAWP

    Certificate of lawfulness for the replacement of an existing swimming pool outbuilding with a new swimming pool / gym / health facilities outbuilding.

    Farmleigh Berkhamsted Lane Essendon Hatfield AL9 6JS

    Received 5 Jan 2023
  12. Decided - GrantedN6/2009/1709/FP

    ERECTION OF TWO STOREY REAR AND SINGLE STOREY SIDE AND REAR EXTENSIONS

    1 PARKFIELDS WELWYN GARDEN CITY AL8 6EE

    Received 3 Aug 2009
  13. Decided - Granted6/2016/1618/TPO

    Removal of Silver Birch tree in rear of garden - Conservation Area

    16 Guessens Road, Welwyn Garden City, AL8 6QR

    Received 9 Aug 2016
  14. Decided - Granted6/2016/1219/EM

    Removal of Leylandii tree

    24 Roundwood Drive, Welwyn Garden City, AL8 7JZ

    Received 17 Jun 2016
  15. Decided - Granted6/2019/0962/EM

    Reduce 2 x silver birches by 3m

    314 Knightsfield Welwyn Garden City AL8 7NQ

    Received 16 Apr 2019
  16. Decided - Granted6/2022/2023/EMT

    T1-Lawson Cypress-Reduce by 4m in height to maintain size. T2-Multi-stemmed Plum-Reduce by 1-2m all round to balance crown.

    82 Dawley Welwyn Garden City AL7 1DX

    Received 31 Aug 2022
  17. Decided - RefusedN6/2014/1900/FP

    Erection of two storey side extensions and single storey front and rear extensions following demolition of existing conservatory and garage

    2 Hillside Way Welwyn AL6 0TY

    Received 26 Aug 2014
  18. Decided - GrantedW6/2015/0520/EM

    Erection of two storey & part single storey rear extension

    42 Barnfield Road, Welwyn Garden City, AL7 3TQ

    Received 10 Mar 2015
  19. Decided - Granted6/2020/1448/TPO

    Reduce 2 x Oak trees by 2m in height and 2.5m width and reduce 2 x Beech trees by 2m in height and 3m in width (TPO)

    5 The Drive Welwyn AL6 0TW

    Received 22 Jun 2020
  20. Decided - Granted6/2016/2167/EM

    Reduce Willow tree by 1.5m, lift lower limbs from 3 Conifer trees by 3ft and trim by 6inches, reduce Holly and Yew trees by 6inches and further Holly tree by 1m plus removal of limb from Ash tree

    45 Digswell Rise Welwyn Garden City AL8 7PP

    Received 17 Oct 2016
  21. Decided - Refused6/2023/1500/HOUSE

    Erection of single storey rear extension, alterations and extension to rear dormer windows, insertion of rooflight into existing rear extension, installation of air conditioning unit

    16 Brockswood Lane Welwyn Garden City AL8 7BG

    Received 18 Jul 2023
  22. Decided - Granted6/2018/0775/LAWP

    Certificate of lawfulness for the erection of a rear garden house

    58 Briars Lane Hatfield AL10 8ET

    Received 22 Mar 2018
  23. Decided - Granted6/2024/1946/COND

    Submission of details pursuant to Conditions 4 (BGP), 5 (Otter and Water Vole), 8 (Arboricultural Information), 9 (Construction Environmental Management Plan), 11 (Additional Layout Plans), 12 (Construction Surface Water Management Plan), 13 (Grazing Management Plan), 16 (Landscape Management Plan)), 17 (Hard and Soft Landscaping), and 18 (Proposed Perimeter Fencing and Gates) on planning permission 6/2023/1802/MAJ

    Land East of A6129 Stanborough Hatfield AL8 7TB

    Received 10 Oct 2024
  24. Decided - Granted6/2020/3384/HOUSE

    Erection of a single storey side extension

    49 Peartree Lane Welwyn Garden City AL7 3UA

    Received 16 Dec 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

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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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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