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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
21,928Searchable applications
296Recorded as pending
86%Approval rate · 17,777 approved or refused records
2,523Refused applications

15,254 approved · 2,523 refused · 1,132 withdrawn. Received dates in our records: 5 Jan 2005 to 30 Sept 2026. Most recent record check: 13 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2017/2364/EM

    Erection of a single storey rear extension

    33 Crossway Welwyn Garden City AL8 7ED

    Received 13 Oct 2017
  2. Decided - Refused6/2019/2411/FULL

    Installation of 1x 25m monopole tower with 6x antenna apertures, 3x 600mm transmission dishes, relocation of 1x transmission dish following removal of existing 22.5m monopole tower with associated ancillary works

    Northdown Road Verge of Northdown Road JCT Travellers Lane Hatfield Hertfordshire AL10 8JY

    Received 30 Sept 2019
  3. Decided - Granted6/2024/1925/EMT

    1 x Hawthorn to fell.

    12 Pentley Park Welwyn Garden City AL8 7RU

    Received 8 Oct 2024
  4. Decided - Refused6/2020/1574/LAWP

    Certificate of lawfulness for the erection of an outbuilding

    37 The Ridgeway Cuffley Potters Bar EN6 4BB

    Received 2 Jul 2020
  5. Decided6/2025/2370/TC

    T1 and T2: two 8.5-meter-tall Thujas, remove in sections and grind stumps out

    11 Beehive Lane Welwyn Garden City AL7 4BB

    Received 11 Nov 2025
  6. Decided - Granted6/2026/1018/LAWP

    Certificate of lawfulness to replace existing external cladding, cavity barriers and insulation to all facades with alternative non-combustible materials. Replace the existing timber decking to all balconies with alternative non-combustible materials

    Dickson House Clayton House Forum House Lemsford Road Hatfield AL10 0FE

    Received 9 Jun 2026
  7. Decided - Granted6/2021/3480/HOUSE

    Erection of single storey rear extension

    241 Heronswood Road Welwyn Garden City AL7 3JH

    Received 14 Dec 2021
  8. Decided - Granted6/2017/1268/FULL

    Erection of a storage building following demolition of existing storage structures

    Oshwal Centre Coopers Lane Road Northaw Potters Bar EN6 4DG

    Received 12 Jun 2017
  9. Decided - Granted6/2019/2230/HOUSE

    Erection of single storey front extension

    11 Heathcote Avenue Hatfield AL10 0RQ

    Received 6 Sept 2019
  10. Decided6/2025/1340/TC

    T1 1x Scott's Pine to reduce by approx 2.5m height and 1.5m width

    56 Valley Road Welwyn Garden City AL8 7DN

    Received 26 Jun 2025
  11. Decided - Granted6/2022/0600/EMH

    Erection of single storey side extension over existing single storey side extension, removal of rear window to be replaced with patio doors, existing french doors with side lights to be replaced with bi-fold doors and new front door to be moved to existing porch recess

    41 Rosedale Welwyn Garden City AL7 1DW

    Received 14 Mar 2022
  12. Decided - Granted6/2020/0811/HOUSE

    Erection of single storey rear extension

    166 Longcroft Lane Welwyn Garden City AL8 6EN

    Received 30 Mar 2020
  13. Decided - Withdrawn6/2024/1900/PN8

    Prior approval for the erection of a single storey rear extension measuring 7m in depth, 3m in height, 2.6m to the eaves

    43 St Albans Road East Hatfield AL10 0EJ

    Received 3 Oct 2024
  14. Decided - Granted6/2022/1851/HOUSE

    Erection of front porch and a single storey rear extension

    40 Hunters Way Welwyn Garden City Hertfordshire AL7 4NP

    Received 8 Aug 2022
  15. Decided - Granted6/2019/0503/COND

    Submission of details pursuant to condition 1 (Archaeological Report) on planning permission 6/2018/2715/FULL

    The Wood Barn, The Estate Yard North Mymms Park North Mymms Hatfield AL9 7TR

    Received 6 Mar 2019
  16. Decided6/2021/2801/TC

    Permission to cut down four trees

    24 Barleycroft Road Welwyn Garden City AL8 6JU

    Received 29 Sept 2021
  17. Decided - Granted6/2023/1640/HOUSE

    Demolition of existing garage and erection of new garden room

    Old Maypole House 43 Warrengate Road North Mymms Hatfield AL9 7TT

    Received 8 Aug 2023
  18. Decided - Refused6/2020/0090/HOUSE

    Retention of existing outbuilding

    7 Danesbury Lane Welwyn AL6 9SG

    Received 15 Jan 2020
  19. Decided - Granted6/2020/2461/EMT

    Reduction of Hornbeam Tree by 30%.

    7 Brockett Close Welwyn Garden City AL8 7BN

    Received 25 Sept 2020
  20. Decided - Granted6/2017/2388/EM

    1 x Lawson Cypress to fell

    12 Homerfield Welwyn Garden City AL8 6QZ

    Received 17 Oct 2017
  21. Decided - Granted6/2026/0815/HOUSE

    Erection of part single storey, part two storey rear extension with rooflight to ground floor roof, enlarged patio area and ground floor and first floor openings to existing side elevation

    111 Warren Way Digswell Welwyn AL6 0DL

    Received 11 May 2026
  22. Decided - Granted6/2021/2498/EM

    Single storey rear extension to include insertion of roof light into existing flat roof and a single storey side/rear extension to attached outbuilding.

    45 Fordwich Road Welwyn Garden City AL8 6EY

    Received 25 Aug 2021
  23. Decided - Granted6/2023/0429/EM

    Replacement front door, frame, and flag windows with PVC-u and double glazing

    11 Mandeville Rise Welwyn Garden City AL8 7JT

    Received 24 Feb 2023
  24. Decided - Granted6/2023/0496/EM

    10 solar panels to fitted to the exterior roof of the property. Panels will not be visible from the street

    5 Downfields Welwyn Garden City AL8 6XR

    Received 6 Mar 2023

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

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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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