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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
20,331Searchable applications
298Recorded as pending
86%Approval rate · 16,435 approved or refused records
2,315Refused applications

14,120 approved · 2,315 refused · 1,032 withdrawn. Received dates in our records: 5 Jan 2005 to 30 Sept 2026. Most recent record check: 12 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2024/2362/FULL

    Erection of a single storey detached dwelling with basement, and associated landscaping and access works, following the demolition of existing outbuildings

    The Cottage Foxes Lane Hatfield AL9 7BA

    Received 10 Dec 2024
  2. Decided - Granted6/2023/1053/COND

    Submission of details pursuant to condition 1 (Aboricultural Impact Assessment and Method Statement) on planning permission 6/2022/2918/HOUSE

    1 Deerswood Avenue Hatfield Hertfordshire AL10 8RX

    Received 18 May 2023
  3. Appeal Decided - Allowed6/2023/2418/OUTLINE

    Outline planning application with all matters reserved except for primary means of access for up to 150 C2 (extra care) dwellings, ancillary community facilities, landscaping, and access from Coopers Lane Road

    Former Hook Estate and Kennels, Coopers Lane Road/Firs Wood Close, Northaw EN6 4BY

    Received 30 Nov 2023
  4. Decided - Refused6/2018/2038/EM

    Formation of hardstanding

    17 Sandpit Road Welwyn Garden City AL7 3TW

    Received 6 Aug 2018
  5. Decided - Refused6/2019/0715/COND

    Submission of details pursuant to condition 3 (Materials), 7 (Drainage) on planning permission 6/2018/1519/MAJ

    Street Record Chequers Field, Welwyn Garden City AL7 4SX

    Received 26 Mar 2019
  6. Decided - Granted6/2022/2299/EM

    Erection of single storey side/rear extension, part garage conversion including raising of roof, insertion of roof lights to existing and proposed flat roofs and alterations to openings to rear and side elevations.

    86 Attimore Road Welwyn Garden City AL8 6LP

    Received 3 Oct 2022
  7. Decided - Granted6/2021/1777/COND

    Submission of details pursuant to condition number 13 (parking restrictions) on planning permission 6/2019/1382/FULL

    Kellard House (formally Entech House) London Road Woolmer Green SG3 6JR

    Received 8 Jun 2021
  8. Decided - Granted6/2026/1175/HOUSE

    Erection of a single storey rear extension, alterations to opening on side elevation and garden room with covered area following demolition of conservatory

    5A Honeycroft Welwyn Garden City AL8 6HR

    Received 7 Jul 2026
  9. Decided - Granted6/2021/0849/LAWP

    Certificate of lawfulness for the erection of a single storey side extension to either side of the dwelling, with roof alterations including a hip to gable roof extension to either side of existing roof and insertion of a dormer window in the rear roofslope

    19 The Avenue Welwyn AL6 0PW

    Received 16 Mar 2021
  10. Decided - Granted6/2024/0892/COND

    Submission of details pursuant to condition number 1 (Crown roof cross section) and condition number 2 (Material details) on planning permission 6/2022/1857/HOUSE

    77 Calder Avenue Brookmans Park AL9 7AJ

    Received 13 May 2024
  11. Decided - Granted6/2024/1284/LAWP

    Certificate of lawfulness for ground floor rear extension

    26 St Ives Close Digswell Welwyn AL6 0BB

    Received 8 Jul 2024
  12. Decided - Granted6/2023/0418/EMT

    Fell Fir tree and replace with suitable alternative

    9 Dognell Green Welwyn Garden City AL8 7BL

    Received 23 Feb 2023
  13. Decided - Granted6/2022/0040/FULL

    Erection of a single storey front extension under existing canopy and erection of trolley bay following demolition of existing trolley bays

    71-73 Moors Walk Welwyn Garden City AL7 2BQ

    Received 7 Jan 2022
  14. Decided - Granted6/2026/0831/HOUSE

    Erection of part single, part two storey rear extension and front extension and rendering to the external elevations and alterations to the side extension

    16 Spring Glen Hatfield AL10 8HD

    Received 12 May 2026
  15. Decided - Granted6/2021/3083/TPO

    T4 Pine, fell T1 Pine, fell T2 Oak, 25% crown reduction T3 Oak, 25% crown reduction G1, Maple x 6, fell Prune overhanging secondary branches over fence at number 30 Birchall Wood, primary branches to remain

    30 Birchall Wood Welwyn Garden City AL7 2HL

    Received 27 Oct 2021
  16. Decided - Granted6/2023/0342/HOUSE

    Erection of single storey rear extension and garage conversion, following demolition of conservatory

    41 Longcroft Lane Welwyn Garden City AL8 6EB

    Received 13 Feb 2023
  17. Decided - Granted6/2021/3254/EM

    Replacement of existing windows and doors

    2 Guessens Road Welwyn Garden City AL8 6QR

    Received 15 Nov 2021
  18. Decided - Granted6/2021/0240/TPO

    Reduce 4 x Oak trees by 1.2m (15%) covered by a TPO

    3 Mardley Wood Welwyn AL6 0UY

    Received 26 Jan 2021
  19. Decided - Refused6/2022/0648/COND

    Submission of details pursuant to condition number 11 (refuse and recycling), condition 13 (car parking) and condition 14 (allocated parking for each flat) on planning permission 6/2019/1699/FULL

    1 Roe Green Close Hatfield AL10 9PD

    Received 18 Mar 2022
  20. Decided - Granted6/2026/0628/EM

    Erection of single storey rear extension following demolition of conservatory, garage conversion with raising of roof and front extension, loft conversion with rooflights, alterations to fenestration and widening of existing driveway

    2 Handside Lane Welwyn Garden City AL8 6SF

    Received 9 Apr 2026
  21. Decided - Granted6/2024/0443/LAWP

    Certificate of lawfulness to add new first floor window to side elevation

    32 Sylvandale Welwyn Garden City AL7 2HT

    Received 7 Mar 2024
  22. Decided - Granted6/2019/2795/EM

    Erection of single storey front and rear extension, raising roof level and installation of dormer

    39 Reddings Welwyn Garden City AL8 7LA

    Received 5 Nov 2019
  23. Decided - Withdrawn6/2020/3451/MAJ

    Demolition of existing buildings and erection of 14 dwellings

    Wells Farm, Northaw Road East, Cuffley, Potters Bar, Herts. EN6 4RD

    Received 24 Dec 2020
  24. Decided - Granted6/2025/1559/HOUSE

    Erection of first floor rear extension, raising the roof height of the rear extension and amendments to parapets and fenestration

    39 Sylvandale Welwyn Garden City AL7 2HS

    Received 21 Jul 2025

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

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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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