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England · Local authority

Welwyn Hatfield Borough Council
Planning applications.

Explore collected planning applications and decisions for Welwyn Hatfield Borough Council. Search an address, application reference or proposal to find a record.

Collected application statistics

Collected records · All available dates
31,685Searchable applications
303Recorded as pending
87%Approval rate · 26,461 approved or refused records
3,473Refused applications

22,988 approved · 3,473 refused · 1,671 withdrawn. Received dates in our records: 29 Apr 1948 to 13 Oct 2026. Most recent record check: 19 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 Counts reflect the last collected status; some records may be out of date.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 - GrantedN6/2015/0093/MA

    Installation of biomass boiler cabin

    Monread Lodge 38 London Road Woolmer Green Knebworth SG3 6HG

    Received 21 Jan 2015
  2. Decided - RefusedS6/2015/0937/LUP

    Certificate of lawfulness for change of use of existing garage to habitable accommodation

    12 Campion Road Hatfield AL10 9FB

    Received 5 May 2015
  3. Decided - Granted6/2019/2921/HOUSE

    Retention of single storey rear extension

    78 Eddington Crescent Welwyn Garden City AL7 4SQ

    Received 20 Nov 2019
  4. Decided - Withdrawn6/2015/2276/FULL

    Change of use to permanent residential caravan site land, siting of 2no park home units and formation of 4no hardstanding parking spaces

    The Firs Park, Woodside Lane, Hatfield, AL9 6DG

    Received 9 Nov 2015
  5. Decided - Granted6/2022/0033/HOUSE

    Removal of existing shed, erection of a single storey rear/side extension and a single storey front/side extension, plus alterations to openings to include insertion of roof lights into existing and proposed roofs

    6 Corn Mead Welwyn Garden City AL8 7QR

    Received 6 Jan 2022
  6. Decided - Granted6/2023/0914/TPO

    T2. Oak tree reduce the crown by 25%.

    15 Heath Road Welwyn AL6 0TP

    Received 28 Apr 2023
  7. Decided - Granted6/2021/2326/LAWE

    Certificate of lawfulness for the existing use of floorspace at second floor level of the property for Class E purposes

    Unit 14 The Howard Centre Howardsgate Welwyn Garden City AL8 6HA

    Received 5 Aug 2021
  8. Decided - Granted6/2018/0052/EM

    Erection of part single, part two storey rear extension

    45 Valley Road Welwyn Garden City AL8 7DH

    Received 8 Jan 2018
  9. Decided - RefusedN6/2014/0101/FP

    Installation of side dormer

    23 Robbery Bottom Lane Welwyn AL6 0UL

    Received 21 Jan 2014
  10. Decided - Refused6/2021/1585/PN8

    Prior approval for the erection of a single storey rear extension measuring 8m in depth, 4m in height and 4m to the eaves.

    Skyfield Manor West End Lane Essendon Hatfield AL9 6AX

    Received 18 May 2021
  11. Decided - Refused6/2023/2009/HOUSE

    Erection of a two storey rear and side extension with roof alterations including proposed front dormer following demolition of existing conservatory

    12 Hillside Way Welwyn AL6 0TY

    Received 29 Sept 2023
  12. Decided - Granted6/2019/0027/LAWP

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

    45 Summer Dale Welwyn Garden City AL8 7QH

    Received 7 Jan 2019
  13. Decided - Granted6/2021/1621/FULL

    Conversion of 5 and 7 Breaks Road into a single dwelling with alterations to the ground floor façade

    5 and 7 Breaks Road Hatfield AL10 8TR

    Received 20 May 2021
  14. Decided - GrantedS6/2013/1145/LUP

    Erection of rear dormer and alterations to roof

    14 The Gardens, Brookmans Park, HATFIELD, AL9 7UL

    Received 29 May 2013
  15. Decided - RefusedN6/2014/0431/LB

    Replacement of existing single glazed windows with UPVC double glazed windows

    The Grange 3 Codicote Road Welwyn AL6 9LY

    Received 27 Feb 2014
  16. Decided6/2019/2454/TC

    Reduce 1 x Horse Chestnut by 4m height & 1.5m width Fell 1 x Laburnum tree

    44 Fore Street Hatfield AL9 5AH

    Received 2 Oct 2019
  17. Decided - Granted6/2024/1709/TC

    TPO 763 (2018) T1 Holm oak: to reduce the height of the tree by approx. 2m; reduce side lateral branches by approx. 3m; and crown raise lower canopy over carport on south side tree to give 2m clearance from carport roof.

    UK Power Networks Substation Woodman PH AL7 3JE

    Received 5 Sept 2024
  18. Decided - Granted6/2022/0427/HOUSE

    Erection of single storey rear extension and replacement garage

    18 The Meadway Cuffley Potters Bar EN6 4ES

    Received 23 Feb 2022
  19. Decided - WithdrawnN6/2014/0092/LUP

    Erection of single storey rear extension to include a ramped access

    13 Beechfield Road, Welwyn Garden City, AL7 3RG

    Received 7 Jan 2014
  20. Decided - GrantedN6/2013/0401/FP

    Erection of a part two storey, part single storey rear extension and conversion of part of the garage to habitable accommodation

    34 Knightsfield, WELWYN GARDEN CITY, AL8 7HA

    Received 21 Feb 2013
  21. Decided - Granted6/2016/1314/FULL

    Installation of sprinkler tank and pumphouse within perimeter boundary of existing store

    Tesco Stores, Oldings Corner, Hatfield AL9 5JY

    Received 29 Jun 2016
  22. Decided - Withdrawn6/2025/1715/LAWP

    Certificate of Lawfulness for the installation of solar panels to the roof of the property and installation of electric controls within the garage

    39 Woodland Rise Welwyn Garden City AL8 7LJ

    Received 11 Aug 2025
  23. Decided - GrantedN6/2014/0091/OR

    Prior approval for the change of use of ground and first floor office building (B1) to six residential flats (C3)

    60 Bridge Road East, Welwyn Garden City, AL7 1JU

    Received 16 Jan 2014
  24. Decided6/2023/1745/TC

    Reduce 2 sycamore trees by 10ft (3 metres), shape and remove Russian ivy.

    3 Broadfield Place Welwyn Garden City AL8 6LJ

    Received 18 Aug 2023

Records are ordered by application ID, not submission date. Use search to find a particular address or proposal.

View all applications

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

All planning guides

  • Understanding planning · 13 min read

    Planning application documents: what to read first

    Understand planning application documents, officer reports and decision notices. Use a reading checklist, document table and worked example to inspect a case.

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  • Understanding planning · 13 min read

    Planning permission drawings: how to read plans

    Read planning drawings, floor plans, elevations and sections. Use labelled diagrams, a drawing comparison table and revision checks to understand a proposal.

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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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