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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
40,229Searchable applications
309Recorded as pending
86%Approval rate · 33,738 approved or refused records
4,810Refused applications

28,928 approved · 4,810 refused · 2,212 withdrawn. Received dates in our records: 29 Apr 1948 to 29 Oct 2026. Most recent record check: 5 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 Counts reflect the last collected status; some records may be out of date.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 - GrantedN6/2015/1186/FP

    Erection of a single storey side extension

    1A Rosecroft Lane Welwyn AL6 0UB

    Received 4 Jun 2015
  2. Decided - Granted6/2020/0294/HOUSE

    Erection of two storey front extension, erection of double garage and alterations to openings

    31 Mardley Avenue Welwyn AL6 0TU

    Received 3 Feb 2020
  3. Decided - Granted6/2017/1599/EM

    Replacement of existing concrete driveway with block paving

    17 Marsden Green Welwyn Garden City AL8 6YD

    Received 21 Jul 2017
  4. Decided - Granted6/2015/2129/TPO

    Reduce Oak tree by up to 15% - Conservation Area.

    23 Reddings, Welwyn Garden City, AL8 7LA

    Received 14 Oct 2015
  5. Decided - Granted6/2016/0925/EM

    Renovation of drive and path to include: removal of concrete and tarmac and replace with block paving

    39 Springfields, Welwyn Garden City, AL8 6XT

    Received 11 May 2016
  6. Decided - Withdrawn6/2019/1486/EM

    Fell 2 x Poplar trees

    175 Parkway Welwyn Garden City AL8 6JA

    Received 19 Jun 2019
  7. Decided - GrantedW6/2014/2207/EM

    Erection of a single storey side extension following demolition of existing conservatory

    81 Caponfield, Welwyn Garden City, AL7 4AW

    Received 7 Oct 2014
  8. Decided - Granted6/2023/0181/FULL

    Subdivision of existing dwelling into two dwellings and alterations to fenestration

    2 Sandpit Road Welwyn Garden City AL7 3TN

    Received 25 Jan 2023
  9. Decided - Granted6/2019/3137/HOUSE

    Installation of dormers to facilitate loft conversion, alterations to fenestration's with hip to gable roofing

    2 Woodland Way Welwyn AL6 0RZ

    Received 12 Dec 2019
  10. Decided - Refused6/2017/0616/HOUSE

    Erection of two storey and part single storey side extension with the installation of 2 front and 1 rear dormer window, following the demolition of existing garage.

    16 Hillside Way Welwyn AL6 0TY

    Received 21 Mar 2017
  11. Decided - Granted6/2016/2416/PN15

    Prior approval for the installation of 3 antennas, 3 remote radio units (RRU) and 3 BOBs boxes together with associated support bracketry, feeder cables and ancillary development.

    Telephone Exchange Wigmores North Welwyn Garden City AL8 6PH

    Received 15 Nov 2016
  12. Decided - Granted6/2024/0035/FULL

    Erection of a part two storey and part single storey rear extension.

    29 Badger Way Hatfield AL10 8RY

    Received 5 Jan 2024
  13. Decided6/2020/3034/TC

    Crown reduce 2 x Apple trees by 3m

    159 Handside Lane Welwyn Garden City AL8 6TA

    Received 17 Nov 2020
  14. Decided - GrantedS6/2015/0557/FP

    Erection of a single storey rear extension and ground floor front bay extension

    9 Manor Road, Hatfield, AL10 9LN

    Received 16 Mar 2015
  15. Decided - GrantedS6/2006/0432/FP

    SINGLE STOREY REAR EXTENSION

    33 Hill Rise Cuffley Potters Bar EN6 4EH

    Received 4 Apr 2006
  16. Decided - GrantedS6/2015/0727/LUP

    Certificate of lawfulness for a proposed single storey basement and the erection of two storey rear extension, a porch, alterations to windows and insertion of new windows, erection of single storey garage and single storey outbuilding

    The Spinney, High Road, Hatfield, AL9 6HT

    Received 30 Mar 2015
  17. Decided - Granted6/2024/1853/HOUSE

    Erection of a single storey side/rear extension and roof alterations

    6 Sherrards Mews Rectory Road AL8 7AX

    Received 26 Sept 2024
  18. Decided - Granted6/2021/2061/EM

    Demolition of rear lean-to structure and erection of single storey rear extension

    217 Knightsfield Welwyn Garden City AL8 7QL

    Received 17 Jun 2021
  19. DecidedN6/2008/1743/TC

    REMOVAL OF CHERRY TREE, REMOVAL OF LABURNUM TREE, MAINTENANCE TO SYCAMORE TREES AND REDUCTION OF ASH TREES IN REAR GARDEN

    46 BROCKSWOOD LANE, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7BG

    Received 17 Sept 2008
  20. Decided - Granted6/2015/2240/HOUSE

    Erection of a part two storey and part single storey rear extension

    12 Melbourne Court, Welwyn Garden City, AL8 6LL

    Received 3 Nov 2015
  21. Decided - Granted6/2016/0130/FULL

    Retrospective application for the change of use from dwellinghouse (C3) to sui-generis use comprising of dwellinghouse and guesthouse (C3/C1)

    The Barn, 6 Whitehill, Ayot St Peter

    Received 26 Jan 2016
  22. Appeal Decided - Allowed6/2018/3188/OUTLINE

    Outline permission for erection of single storey equestrian building to form covered manege and riding area with landscape details reserved

    Warrenwood Manor (Equestrian area), Hornbeam Lane, Brookmans Park, Hatfield, AL9 6JF

    Received 14 Dec 2018
  23. Decided - Refused6/2024/2285/LAWP

    Certificate of lawfulness for use of a HMO (C4) as a children's home (C2)

    161 Cunningham Avenue Hatfield AL10 9JZ

    Received 27 Nov 2024
  24. Decided - GrantedN6/2014/0820/NM

    Non material amendment following approval of planning permission N6/2013/2582/FP - To reverse the swing of the window WF03, to provide obscure glass to the window and fit a restrictor stay with 150mm maximum opening for ventilation

    34 Lodgefield Welwyn Garden City AL7 1SD

    Received 22 Apr 2014

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 permission drawings: how to read plans

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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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