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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
35,983Searchable applications
331Recorded as pending
86%Approval rate · 29,987 approved or refused records
4,083Refused applications

25,904 approved · 4,083 refused · 1,892 withdrawn. Received dates in our records: 29 Apr 1948 to 16 Oct 2026. Most recent record check: 23 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2021/0301/EMT

    Fell 1 Ash tree

    8 Densley Close Welwyn Garden City AL8 7JX

    Received 1 Feb 2021
  2. Decided - Granted6/2016/0572/FULL

    Retention of mixed use (sui-generis) B8. B2 & B1 ancillary office accommodation, comprising hiring out and maintaining road sweepers

    Go Plant, Martinfield, Welwyn Garden City, AL7 1HG

    Received 1 Apr 2016
  3. Decided - Withdrawn6/2015/1669/PN11

    Prior approval for the change of use of three buildings from office use (Use Class B1) to 210 residential dwellings (Use Class C3).

    Business Centre, Development Park and Enterprise Centre Xerox, Bessemer Road, Welwyn Garden City, AL7 1HE

    Received 5 Aug 2015
  4. Decided - Granted6/2025/0179/EM

    Replacement of existing 12ft x 8ft garden shed (6/2018/0436/EM) with 4m x 3m garden office in the same location and 1m from the rear boundary

    26 Reddings Welwyn Garden City AL8 7LA

    Received 3 Feb 2025
  5. Decided - Refused6/2022/2079/LAWP

    Certificate of lawfulness for single storey front/side extension with hipped roof

    24 Worcester Road Hatfield Hertfordshire AL10 0DX

    Received 7 Sept 2022
  6. Decided - GrantedW6/2008/0094/EM

    EXTENSION TO EXSITING VEHICLE HARDSTANDING

    31 SHERRARDSPARK ROAD, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7JW

    Received 17 Jan 2008
  7. Decided - RefusedN6/2009/1068/FP

    ERECTION OF SINGLE STOREY DETACHED GARAGE

    SAWMILL COTTAGE, WATEREND LANE, AYOT ST PETER, WELWYN, HERTS, AL6 9BB

    Received 21 May 2009
  8. Decided - Granted6/2018/3108/HOUSE

    Erection of a first floor rear extension

    57 Homewood Avenue Cuffley Potters Bar EN6 4QQ

    Received 5 Dec 2018
  9. Decided - Granted6/2016/1914/EM

    Erection of garden shed

    24 Mandeville Rise, Welwyn Garden City, AL8 7JU

    Received 15 Sept 2016
  10. Decided - GrantedC6/1988/0788/FP

    Single storey side extension

    86 Chequers, Welwyn Garden City, AL7 4TA

    Received 1 Jan 1988
  11. Decided - GrantedN6/2014/0185/FP

    Erection of grinding room, vehicle servicing, ancillary office and staff facilities following demolition of existing stores building, storage building and removal of portakabins

    John O'Connor Grounds Maintenance 50 Reynards Road Welwyn AL6 9TP

    Received 20 Jan 2014
  12. Decided - Granted6/2015/1547/PN8

    Prior approval for the erection of a single storey rear extension measuring 4.5m deep and 3m high

    64 Bramble Road Hatfield AL10 9SE

    Received 21 Jul 2015
  13. Decided - WithdrawnS6/2007/0922/LU

    CERTIFICATE OF LAWFULNESS FOR THE EXISTING USE OF THE YARD FOR PARKING OF 15 BUSES AND COACHES AND 5 ROAD TRANSPORT VEHICLES; REAR OF DEPOT BUILDING FOR THE REPAIR OF VEHICLES AND FRONT OF BUILDING AS OFFICE AND SIGN WORKSHOP.

    Unit 3 Woodside Lane Hatfield AL9 6DE

    Received 18 Jun 2007
  14. Decided - Refused6/2018/3288/HOUSE

    Installation of a rear dormer to facilitate loft conversion

    32 Colgrove Welwyn Garden City AL8 6HU

    Received 31 Dec 2018
  15. Decided - Granted6/2020/0469/HOUSE

    Erection two storey side extension

    Meadow View Endymion Road Hatfield AL10 8AN

    Received 18 Feb 2020
  16. Decided - Withdrawn6/2018/3228/FULL

    Retention of temporary siting of a container used for the storage of materials and tools associated with the restoration of the garden wall

    The Walled Garden, Woodside Place, Hatfield, AL9 6DN

    Received 19 Dec 2018
  17. DecidedN6/2008/1395/TC

    REMOVAL OF TREE FROM FRONT GARDEN

    56 Valley Road, Welwyn Garden City, AL8 7DN

    Received 11 Aug 2008
  18. Decided - Refused6/2022/1424/HOUSE

    Erection of single storey side and rear extension

    28 The Swallows Welwyn Garden City AL7 1BY

    Received 20 Jun 2022
  19. Decided - Granted6/2016/1399/EM

    Erection of single storey rear extension

    92 Lemsford Lane, Welwyn Garden City, AL8 6YL

    Received 6 Jul 2016
  20. Decided - RefusedN6/2014/1015/FP

    Erection of two storey side, part two storey and part single storey rear extensions

    40 Furzefield Road, Welwyn Garden City, AL7 3RJ

    Received 7 May 2014
  21. Decided - Granted6/2020/2087/LAWP

    Certificate of lawfulness for a proposed loft conversion

    86 Salisbury Road Welwyn Garden City AL7 3SB

    Received 19 Aug 2020
  22. Decided - WithdrawnS6/2014/0303/S73A

    Variation of condition 2 (approved plans) from planning permission S6/2010/1371/FP - Partial demolition of existing single storey rear extension and covered area, replacement of demolished building with new pitched roof single storey rear extension. Raising hipped main roof to gable and carrying out loft conversion with rear facing dormer

    30 Astwick Avenue Hatfield AL10 9LA

    Received 5 Feb 2014
  23. Decided - Granted6/2022/2298/EM

    Erection of garden office and storage shed

    9 The Orchard Welwyn Garden City AL8 7PL

    Received 3 Oct 2022
  24. Decided - Granted6/2015/1733/HOUSE

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

    13 Sweet Briar Welwyn Garden City AL7 3DU

    Received 13 Aug 2015

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

All planning guides

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    Planning application documents: what to read first

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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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