PlanningTrack
Get started

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
19,663Searchable applications
298Recorded as pending
86%Approval rate · 15,880 approved or refused records
2,214Refused applications

13,666 approved · 2,214 refused · 999 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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. Appeal Decided - Allowed6/2024/0183/VAR

    Removal of condition 17 (solar panels) on planning permission 6/2016/0345/MAJ

    Highfield House Roe Green Lane Hatfield Hertfordshire AL10 0FP

    Received 30 Jan 2024
  2. Appealed6/2021/2885/HOUSE

    Enlargement of existing dormer to include 1 x rear dormer, 2 x juliet balconies to rear elevation, 5 x front skylights, and alterations to fenestrations

    7 Swanland Road North Mymms Hatfield AL9 7TG

    Received 8 Oct 2021
  3. Decided - Granted6/2026/0477/FULL

    Installation of plant and machinery comprising Air Source Heat Pumps (ASHP), Electrical Panels and Variable Refrigerant Flow (VRF) systems to serve the Film, Music and Media Building at the College Lane Campus at University of Hertfordshire to contribute towards the University's decarbonisation programme

    University Of Hertfordshire College Lane Campus College Lane Hatfield AL10 9AB

    Received 16 Mar 2026
  4. Decided - Granted6/2022/1811/HOUSE

    Alteration of fenestration to existing garage to facilitate conversion of garage into an annexe

    83 Broad Acres Hatfield AL10 9LE

    Received 2 Aug 2022
  5. Decided - Granted6/2022/0895/HOUSE

    Erection of 2 single storey rear/side extensions.

    1 Brockswood Lane Welwyn Garden City AL8 7BA

    Received 14 Apr 2022
  6. Decided - Granted6/2026/1253/EM

    Garage alterations including replacing roof, installation of doors and rendering of exterior

    29 Brockswood Lane, Welwyn Garden City, AL8 7BE

    Received 16 Jul 2026
  7. Decided - Granted6/2024/0340/HOUSE

    Erection of a single storey side extension and insertion of conservation rooflights to rear elevation. Full conversion of loft space into habitable accommodation.

    49 Sherrardspark Road Welwyn Garden City AL8 7LD

    Received 21 Feb 2024
  8. Decided - Granted6/2024/0768/LAWP

    Certificate of lawfulness for conversion of garage to habitable space including amendments to fenestration

    2 Rectory Gardens Hatfield AL10 8BG

    Received 24 Apr 2024
  9. Decided - Withdrawn6/2022/1997/MAJ

    Erection of a 3 storey, 10 x dwelling, apartment building following demolition of existing dwelling

    55 New Road Digswell Welwyn AL6 0AL

    Received 26 Aug 2022
  10. Decided - Refused6/2022/0603/HOUSE

    Erection of side facing dormer to existing first floor rear bedroom

    85 Attimore Road Welwyn Garden City AL8 6LG

    Received 14 Mar 2022
  11. Decided - Granted6/2022/2331/HOUSE

    Erection of a single storey rear extension, with insertion of roof lights following demolition of existing conservatory

    102 Forresters Drive Welwyn Garden City AL7 2JQ

    Received 6 Oct 2022
  12. Decided - Granted6/2025/0972/EMT

    1 x Hawthorn to reduce by 2.5m in height and 1.5m in width.

    42-63 Guessens Court Guessens Road Welwyn Garden City AL8 6RB

    Received 27 May 2025
  13. Decided - Granted6/2020/0456/FULL

    Erection of a two storey block of 9no. dwellings with associated car parking, bicycle store, refuse facilities and landscaping following demolition of 2no. semi-detached dwellings

    75 Oaklands Avenue Brookmans Park Hatfield AL9 7UH and 68 Westland Drive Brookmans Park Hatfield AL9 7UG

    Received 18 Feb 2020
  14. Decided - Refused6/2020/2533/HOUSE

    Erection of first floor side extensions, front porch and two storey front extension.

    6 Robin Mead Welwyn Garden City AL7 1PP

    Received 1 Oct 2020
  15. Decided - Granted6/2018/1300/HOUSE

    Erection of single storey rear extension

    51 School Lane Welwyn AL6 9PL

    Received 16 May 2018
  16. Decided - Refused6/2019/0389/LAWP

    Certificate of lawfulness for erection of a two storey rear extension

    Hill House Waterend Lane Ayot St Peter Welwyn AL6 9BB

    Received 20 Feb 2019
  17. Decided - Granted6/2025/0211/EMT

    Front: 1 x Cherry tree (dead) to remove to ground level. Grind out stump to approximately 200mm below existing ground level Rear: 3 x Laurel to reduce by approximately 2.5m in height and 1m in width, 1 x Elderberry to reduce by approximately 2.5m in height, 2 x Cherry Plums remove the dead wood/branches to maintain health of tree

    18 Fordwich Road Welwyn Garden City AL8 6EY

    Received 7 Feb 2025
  18. Decided - Refused6/2025/1597/HOUSE

    Installation of swimming pool and ancillary shower block

    Ponsbourne Park Windmill Farm Newgate Street Hertford SG13 8QU

    Received 24 Jul 2025
  19. Decided - Granted6/2019/0453/HOUSE

    Erection of single storey rear extension following demolition of conservatory

    44 Stockbreach Road Hatfield AL10 0BD

    Received 27 Feb 2019
  20. Decided - Granted6/2023/2342/TPO

    1 x Hornbeam - pollard to 4 metres to maintain the size of tree as has grown large since previous pollard (TPO 1156 G6)

    11 Warren Way Digswell Welwyn AL6 0DQ

    Received 21 Nov 2023
  21. Decided - Granted6/2022/0700/EM

    Replacement of existing hardstanding concrete driveway and crossover with block paving to the same foot print

    9 Pitsfield Welwyn Garden City AL8 7SJ

    Received 24 Mar 2022
  22. Decided - Split6/2021/1851/COND

    In relation to planning APP/C1950/A/10/2142040 (planning ref: S6/2010/0111/OP please could you provide confirmation of the discharge of conditions on the planning consent dated 13 May 2011: 3 – Landscape management and maintenance plan 12 – Contamination remediation condition 17 – Vibration assessment prior to occupation 18 – Noise impact assessment

    Sovereign Place, Mount Pleasant Depot, Mount Pleasant Lane, Hatfield, Hertfordshire, AL9 5PU

    Received 15 Jun 2021
  23. Decided - Granted6/2020/1061/EM

    Erection of greenhouse

    38 High Oaks Road Welwyn Garden City AL8 7BS

    Received 12 May 2020
  24. Decided - Granted6/2021/3364/EM

    Conversion of garage to habitable use to include erection of a single storey front extension, and alterations to fenestrations on front elevation

    10 Lytton Gardens Welwyn Garden City AL8 6EG

    Received 29 Nov 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

  • 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.

    UK research
    Published Updated

  • 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.

    UK research
    Published Updated

  • 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.

    UK research
    Published Updated

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.

Check collection coverage

More planning authorities in England

Browse all authorities