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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
20,991Searchable applications
298Recorded as pending
86%Approval rate · 16,957 approved or refused records
2,405Refused applications

14,552 approved · 2,405 refused · 1,073 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2021/0378/HOUSE

    Erection of single storey rear extension following partial demolition of outbuilding

    6 Mimram Walk Welwyn AL6 9EZ

    Received 8 Feb 2021
  2. Decided - Split6/2021/1890/COND

    Submission of details pursuant to condition 9 (lighting detail), 14 (parking plan), 15 (drainage plan), 16 (visibility splay plan) and 17 (site entrance), on planning permission 6/2019/1699/COND.

    1 Roe Green Close Hatfield AL10 9PD

    Received 21 Jun 2021
  3. Decided6/2023/1401/TC

    Remove 2 x Fir trees (possibly Chamaecyparis 'Ellwoodii')

    17 Roundwood Drive Welwyn Garden City AL8 7JZ

    Received 5 Jul 2023
  4. Decided - Granted6/2019/1570/LAWP

    Certificate of lawfulness for the proposed single storey rear extension with a flat roof and alterations to openings

    2 Rollswood Welwyn Garden City AL7 4DG

    Received 26 Jun 2019
  5. Decided - Withdrawn6/2022/0544/EM

    Erection of two rear roof dormers

    159 Parkway Welwyn Garden City AL8 6JA

    Received 8 Mar 2022
  6. Decided - Withdrawn6/2023/2016/EMT

    Removal of an invasive Ash tree that is currently growing on my property. This tree is causing significant issues with regards to my property's security and my ability to install a much-needed fence

    91 Carve Ley Welwyn Garden City AL7 3HL

    Received 2 Oct 2023
  7. Decided - Granted6/2025/1900/COND

    Submission of details pursuant to condition number 1 (Arboricultural Method Statement and Tree Protection Strategy) on planning permission 6/2025/1208/HOUSE

    13 Welwyn Hall Gardens Welwyn AL6 9LF

    Received 4 Sept 2025
  8. Decided - Granted6/2019/1303/TPO

    Reduce 1x deodar cedar tree by 2m height and width covered by TPO 392(2007)

    126 Handside Lane Welwyn Garden City AL8 6SZ

    Received 3 Jun 2019
  9. Decided - Granted6/2021/0697/HOUSE

    Erection of a two storey front extension following demolition of the ground floor rear extension

    14 Huggins Lane Welham Green Hatfield AL9 7LR

    Received 3 Mar 2021
  10. Decided - Refused6/2024/1670/FULL

    Change of use of first floor from residential (Class C3) to hearing clinic (Class E)

    9-11 Church Street Welwyn AL6 9LN

    Received 2 Sept 2024
  11. Decided - Withdrawn6/2020/2859/HOUSE

    Replacement of existing garage with ancillary accommodation.

    Lower Meadow Hill Farm Lane Welwyn AL6 9BW

    Received 5 Nov 2020
  12. Decided - Granted6/2025/1018/COND

    Submission of details pursuant to condition 13 (Pilling (Thames Water)) & condition 14 (HV Cables (UK Power Networks)) on planning permission 6/2024/0105/MAJ

    Land north of The Meadway Cuffley Potters Bar EN6 4ET

    Received 29 May 2025
  13. Decided - Withdrawn6/2019/2996/LAWP

    Certificate of lawfulness for the erection of an outbuilding and creation of hardstanding

    7 Danesbury Lane Welwyn AL6 9SG

    Received 28 Nov 2019
  14. Decided - Granted6/2023/0829/EM

    Replace current garden shed with a new shed with additional space for a small home office

    14 Pitsfield Welwyn Garden City AL8 7SJ

    Received 18 Apr 2023
  15. Decided - Granted6/2020/0787/COND

    Submission of details pursuant to condition 2 (hard and soft landscaping works) and 4 (surface water drainage scheme) on planning permission 6/2018/0717/MAJ

    Mill Green Mill Green Lane Hatfield AL9 5NQ

    Received 26 Mar 2020
  16. Decided - Refused6/2019/0901/EM

    Erection of first floor side, a two storey rear extension and conversion of garage

    59 Digswell Park Road Welwyn Garden City AL8 7NW

    Received 15 Apr 2019
  17. Decided - Granted6/2023/0183/HOUSE

    Conversion of garage to habitable space with new entrance door and side door and various fenestration alterations

    2 Hanyards End Cuffley Potters Bar Hertfordshire EN6 4EN

    Received 25 Jan 2023
  18. Decided - Refused6/2020/3080/EM

    Demolition of existing derelict garage with replacement single storey annex

    12 Meadow Green Welwyn Garden City AL8 6SS

    Received 19 Nov 2020
  19. Decided6/2024/0544/TC

    2 x Lawson Cypress to fell

    1 Lytton Gardens Welwyn Garden City AL8 6EG

    Received 20 Mar 2024
  20. Decided6/2019/0939/TC

    Fell 1 x Eucalyptus tree - Conservation Area

    42 Valley Road Welwyn Garden City AL8 7DN

    Received 17 Apr 2019
  21. Decided - Granted6/2026/1386/COND

    Submission of details pursuant of condition 1 (construction management plan) on planning permission 6/2022/0012/FULL

    Garages and Former Allotment Site Haseldine Meadows Hatfield AL10 8HB

    Received 5 Aug 2026
  22. Decided - Refused6/2021/2017/LAWP

    Erection of a single storey front extension and a single storey rear extension, following the demolition of existing front porch canopy and rear conservatory, plus alterations to fenestration to existing front and side elevations.

    15 Mardley Wood Welwyn AL6 0UY

    Received 2 Jul 2021
  23. Decided - Granted6/2024/1519/EMT

    T1-Poplar x 2-Re-pollard back to old points to maintain size and shape for the area.

    11 Elmwood, Welwyn Garden City, AL8 6LD

    Received 9 Aug 2024
  24. Decided - Granted6/2018/1187/HOUSE

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

    2 Dellfield Road Hatfield AL10 8EW

    Received 2 May 2018

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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