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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29,002 approved · 4,819 refused · 2,219 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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 - GrantedN6/2009/2313/TC

    REDUCE CROWN OF BEECH TREE BY 20% (2 METRES)

    31 BRIDGE ROAD, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 6UG

    Received 22 Oct 2009
  2. Decided - WithdrawnN6/2004/1494/FP

    INSTALLATION OF 5M LIGHTING COLUMNS TO GARAGE FORECOURTS

    GARAGES, 33-52 DANIELLS, WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 1QL

    Received 8 Oct 2004
  3. Appeal Decided - Dismissed6/2017/1905/HOUSE

    Erection of a single storey side infill extension to garage following partial demolition of existing, extension and alterations to roof and alterations to openings

    12 King James Avenue Cuffley Potters Bar EN6 4LR

    Received 24 Aug 2017
  4. Decided - RefusedS6/2014/0753/LUP

    Certificate of lawfulness for the erection of a detached outbuilding

    The Lodge, 2 Northaw Place, Coopers Lane, Northaw, Potters Bar, EN6 4NQ

    Received 3 Apr 2014
  5. Decided - RefusedW6/2009/1175/EM

    ERECTION OF SINGLE STOREY REAR EXTENSION

    122 HALDENS, WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 1DG

    Received 8 Jun 2009
  6. Decided - Granted6/2015/2022/HOUSE

    Erection of single storey rear extension

    177 Knightsfield, Welwyn Garden City, AL8 7QG

    Received 30 Sept 2015
  7. Decided - Granted6/2018/1099/EM

    Erection of single storey side and rear extension and conversion of existing detached garage to habitable space following demolition of existing conservatory

    22 Duncan Close Welwyn Garden City AL7 3XP

    Received 25 Apr 2018
  8. DecidedN6/2008/1897/TC

    WORKS TO TREE.

    LAND ADJACENT TO 5A HONEYCROFT, WELWYN GARDEN CITY, HERTFORDSHIRE

    Received 9 Oct 2008
  9. Appeal Decided - DismissedN6/2014/1806/FP

    Erection of two storey side extension

    90 Lords Wood, Welwyn Garden City, AL7 2HG

    Received 12 Aug 2014
  10. Decided - Granted6/2025/2265/HOUSE

    Erection of a single storey rear infill extension, first floor rear extension garage conversion and alterations to fenestration and rear dormer

    43 Blakemere Road Welwyn Garden City AL8 7PQ

    Received 24 Oct 2025
  11. Decided - GrantedS6/2015/0102/DS

    Approval of details reserved by condition 3 (materials), 4 (oil and petrol separators) and 5 (hard and soft landscaping) of planning permission S6/2014/1085/MA

    University of Hertfordshire, College Lane, Hatfield, AL10 9AB

    Received 19 Jan 2015
  12. Decided - Granted6/2019/2415/LAWP

    Certificate of lawfulness conversion of garage to habitable space ancillary to main dwellinghouse

    22 Acorn Lane, Cuffley, Potters Bar, EN6 4JQ

    Received 30 Sept 2019
  13. Decided - GrantedS6/2015/0511/TP

    To fell 1 oak, 1 ash, 1 sycamore and 5 birch trees as per plan 826/01A and undertake coppicing, fell dying trees, removal of sycamore and general tree thinning covered by TPO 2

    Warren Wood, Newgate Street, Newgate Street Village, Herts, SG13 8NH

    Received 10 Mar 2015
  14. Decided - RefusedN6/2015/0494/FP

    Conversion of existing building to create independent dwelling

    2 Salisbury Road, Welwyn Garden City, AL7 3SD

    Received 6 Mar 2015
  15. Decided - GrantedW6/2015/1083/TE

    Crown lift oak tree to 5m above ground (soil) level

    30 Little Ganett, Welwyn Garden City, AL7 3DG

    Received 22 May 2015
  16. Decided - GrantedN6/2006/0532/FP

    ERECTION OF SINGLE STOREY FRONT & REAR EXTENSIONS

    1A New Road Woolmer Green Knebworth SG3 6JX

    Received 25 Apr 2006
  17. Appeal Decided - DismissedS6/2004/1135/FP

    RETENTION OF EXISTING OUTBUILDING FOR USE AS GARAGE AND GARDEN STORE.

    8 Bell Lane Brookmans Park Hatfield AL9 7AY

    Received 23 Jul 2004
  18. Decided - GrantedN6/2008/1200/FP

    ROOF EXTENSION TO PROVIDE TWO, ONE BEDROOM SELF-CONTAINED FLATS

    61 HOWARDSGATE, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 6BB

    Received 2 Sept 2008
  19. Decided - Granted6/2017/1012/HOUSE

    Erection of front porch with bay window, erection of part single part two storey side and rear extension following demolition of existing garage as well as conversion of loft to habitable space, together with associated landscaping.

    3 Theobalds Close Cuffley Potters Bar EN6 4HH

    Received 11 May 2017
  20. Decided - Refused6/2026/0209/COND

    Submission of details pursuant to Conditions 2 (detailed technical plans),Condition 3 (Site investigation), Condition 5 (Revised Construction Method Statement), Condition 8 (Detailed section plans of houses and driveway), Condition 10 (Integrated bat/swift boxes), Condition 11(Details of Air source heat pump), Condition 12 ( Non-native species management plan), Condition 13 (Electric Vehicle Charging Points), Condition 14 (External hard & soft landscaping details), Condition 15 (External Materials), Condition 16 (Internal Layouts), Condition 17 (Refuse/recycling storage details) & Condition 19 (SuDs details) on planning permission 6/2023/1886/FULL

    The Long and Short Arm 18 Lemsford Village Welwyn Garden City AL8 7TN

    Received 6 Feb 2026
  21. Decided - Granted6/2019/2670/COND

    Submission of details pursuant to condition 3 (structural design certificate) on planning permission 6/2018/2552/FULL (APP/C1950/W/19/3230504)

    Maynard House 1 The Common Hatfield AL10 0NF

    Received 23 Oct 2019
  22. Decided - GrantedN6/2009/0158/FP

    RETROSPECTIVE APPLICATION FOR REPLACEMENT SHED AND HOT TUB WITH HOUSING

    9 THE OLD DRIVE, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 6TB

    Received 20 Feb 2009
  23. Decided - Granted6/2018/2929/EM

    Fell 2 x ash trees Fell 1 x maple tree 1 x 30% reduction on cherry tree

    15 Barn Close Welwyn Garden City AL8 6ST

    Received 14 Nov 2018
  24. Decided - Granted6/2020/0327/COND

    Submission of details pursuant to condition 1a (planting plans) 1b (details of means of enclosure) and 2 (tree planting plan) on planning permission 6/2019/0564/RM

    1 Waterbeach Welwyn Garden City AL7 2PT

    Received 5 Feb 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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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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