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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
29,215Searchable applications
307Recorded as pending
87%Approval rate · 24,234 approved or refused records
3,236Refused applications

20,998 approved · 3,236 refused · 1,552 withdrawn. Received dates in our records: 1 Nov 1999 to 13 Oct 2026. Most recent record check: 18 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 Counts reflect the last collected status; some records may be out of date.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. Decided6/2026/0765/EIA

    Request for a screening opinion for proposal to implement the proposals for a new Small Animal Hospital as per the Approved Hawkshead Campus Masterplan (2018): Request for an Environmental Impact Assessment (EIA) Screening Opinion under Regulations 5 and 6 of the Town and Country Planning (E nvironmental Impact Assessment) Regulations 2017 (as amended)

    Small Animal Hospital at the Hawkshead Campus of the Royal Veterinary College AL9 7TA

    Received 30 Apr 2026
  2. Decided - Granted6/2018/2620/HOUSE

    Erection of first floor side and rear extension, two storey front extension and re-modelling of roof with half hipped gable ends and rear dormers

    15 Bacons Drive Cuffley Potters Bar EN6 4DX

    Received 12 Oct 2018
  3. Decided - Granted6/2016/1862/TPO

    Removal of dead leader from Scots pine (T2) covered by TPO 539 (2016)

    4 Speyhawk Place, Little Heath, Potters Bar, EN6 1LE

    Received 7 Sept 2016
  4. Decided - Granted6/2021/2321/TPO

    Fell four dead larches within TPO260 W1

    49 New Road Digswell Welwyn AL6 0AQ

    Received 4 Aug 2021
  5. Decided - Refused6/2020/0744/HOUSE

    Extension of existing driveway and erection of detached double garage

    15 Ramsey Close, Brookmans Park, Hatfield, AL9 6NP

    Received 17 Mar 2020
  6. Appeal Decided - AllowedN6/2014/2255/FP

    Erection of 2no. detached dwellings (4 bedroom) with single garages, associated access and parking

    6 Briary Wood End Welwyn AL6 0TD

    Received 13 Oct 2014
  7. Decided - Granted6/2017/1741/HOUSE

    Erection of a single storey side extension and first floor rear extension following demolition of existing garage

    48 Sherrardspark Road Welwyn Garden City AL8 7LB

    Received 7 Aug 2017
  8. Decided - Granted6/2026/0737/COND

    Submission of details pursuant to Condition 1 (the Biodiversity Gain Plan) on planning permission 6/2025/2564/FULL

    55 Peplins Way Brookmans Park AL9 7UR

    Received 27 Apr 2026
  9. Decided - Granted6/2016/1921/HOUSE

    Erection of double storey rear extension following demolition of existing conservatory.

    18 Hillside Way Welwyn AL6 0TY

    Received 12 Sept 2016
  10. Decided - Withdrawn6/2022/0393/EMH

    Erection of a new single storey rear extension and part infill side extension Together with the erection of a two-storey extension to the rear with partial loft conversion following demolition of existing conservatory and single storey extension

    5 Pentley Park Welwyn Garden City AL8 7RT

    Received 21 Feb 2022
  11. Decided - Granted6/2025/1481/EM

    Removal of shed and construction of new outbuilding

    542 Howlands Welwyn Garden City AL7 4ET

    Received 8 Jul 2025
  12. Decided - Granted6/2022/0803/EM

    Replace kitchen window

    30 Youngs Rise Welwyn Garden City AL8 6RU

    Received 31 Mar 2022
  13. Decided - Granted6/2022/1816/FULL

    Erection of proposed new dwelling and associated infrastructure

    8 Tanglewood Welwyn Hertfordshire AL6 0RU

    Received 3 Aug 2022
  14. Under Consultation6/2026/1730/EM

    Alterations to front and side elevations of the house and adding an EV charger to front elevation

    6 Melbourne Court Welwyn Garden City AL8 6LL

    Received 30 Sept 2026
  15. Decided - GrantedS6/2013/2572/DS

    Discharge of condition (materials) of planning permission S6/2013/0412/LO

    Hatfield Railway Station, 79 Great North Road, Hatfield, AL9 5AB

    Received 6 Dec 2013
  16. Decided - Granted6/2021/2188/EMT

    Removal of large magnolia tree in rear garden.

    The Old Manse 40 Barleycroft Road Welwyn Garden City AL8 6JU

    Received 19 Jul 2021
  17. Decided - Granted6/2016/1990/HOUSE

    Erection of a two storey front and rear extensions

    23 Robbery Bottom Lane Welwyn AL6 0UL

    Received 20 Sept 2016
  18. Decided - Granted6/2025/2367/EM

    Replacement of existing windows and doors to the garden to the rear of the property and the side entrance to the front of the property. The current wooden Georgian-style windows to be replaced with UVPC double-gazed white Georgian style windows and doors. They are the same product and from the same company as the replacement windows to the front and side that were installed earlier this year.

    36 Barleycroft Road Welwyn Garden City AL8 6JU

    Received 11 Nov 2025
  19. Decided - Granted6/2017/2717/HOUSE

    Erection of Single storey rear extension following demolition of existing storage room.

    44 Longlands Road Welwyn Garden City AL7 3PZ

    Received 22 Nov 2017
  20. Decided - Granted6/2017/1820/HOUSE

    Erection of a single storey side and rear extension, following demolition of existing conservatory

    119 Brooksfield Welwyn Garden City AL7 2BL

    Received 16 Aug 2017
  21. Decided - GrantedN6/2013/2514/DS

    Discharge of condition 18 & 19 (Surface Water) of planning permission N6/2013/491/MA

    The Hyde Association, Hyde Club, Hollybush Lane, Welwyn Garden City, AL7 4JS

    Received 21 Nov 2013
  22. Decided - Granted6/2017/2622/LB

    External alterations including refurbishment of roof and internal alterations.

    St. Ethelreda's Church Hall Church Street Hatfield AL9 5AR

    Received 10 Nov 2017
  23. Decided - Granted6/2016/0209/HOUSE

    Erection of single storey side extension

    4 Heathlands Welwyn AL6 0UU

    Received 8 Feb 2016
  24. Decided - Granted6/2021/0001/HOUSE

    Erection of a single storey rear extension

    12 Oaklea Welwyn AL6 0PU

    Received 4 Jan 2021

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

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    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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