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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
23,637Searchable applications
313Recorded as pending
86%Approval rate · 19,319 approved or refused records
2,699Refused applications

16,620 approved · 2,699 refused · 1,222 withdrawn. Received dates in our records: 5 Jan 2005 to 2 Oct 2026. Most recent record check: 14 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2025/1085/HOUSE

    Replace existing concrete driveway with shingle and block paving and removal of a section of existing hedge

    31 Roundwood Drive Welwyn Garden City AL8 7JZ

    Received 9 Jun 2025
  2. Decided - Granted6/2017/1961/EM

    Crown reduce 1 x Rowan and 1 x Laburnum tree by 20% and remove any dead branches

    1 Marley Road Welwyn Garden City AL7 4BT

    Received 30 Aug 2017
  3. Decided - Granted6/2017/0571/MAJ

    Erection of single storey ground extension to existing supermarket to create an enclosed entrance lobby and extension to existing customer cafe

    Morrison Supermarket 40 Black Fan Road Welwyn Garden City AL7 1RY

    Received 20 Mar 2017
  4. Decided - Granted6/2019/0132/EM

    Fell 1x Ash Tree

    1 BELLIS HOUSE Kilworth Close Welwyn Garden City AL7 3HS

    Received 23 Jan 2019
  5. Decided - Granted6/2024/1659/HOUSE

    Erection of single storey wrap around extension with alterations to fenestration

    1 Oaklea Welwyn AL6 0PT

    Received 30 Aug 2024
  6. Decided - Granted6/2026/1083/LAWP

    Certificate of lawfulness to certify that the proposed works to carry on and complete the erection of a dwellinghouse approved by planning permission 6/2024/2237/VAR dated 7 April 2025, would be lawful

    Land adjacent The Warren 8 Carbone Hill Northaw Potters Bar EN6 4PL

    Received 23 Jun 2026
  7. Decided - Granted6/2020/2842/EM

    Erection of detached garden outbuilding, following demolition of existing garden shed

    51 Archers Ride Welwyn Garden City AL7 4PR

    Received 29 Oct 2020
  8. Under Consultation6/2026/1491/VAR

    Variation of condition 28 (approved plans) on planning permission 6/2025/0764/FULL

    Land at Great North Road Stanborough Welwyn Garden City AL8 7TQ

    Received 25 Aug 2026
  9. Decided - Granted6/2022/0105/COND

    Submission of details pursuant to condition 5 (traffic noise) on planning application 6/2017/1242/FULL

    2 St Albans Road East AL10 0HE

    Received 17 Jan 2022
  10. Decided - Granted6/2022/0242/HOUSE

    Erection of first floor extension, single storey side extension, retention of single storey rear extension, front porch and bay windows

    45 Codicote Road Welwyn Hertfordshire AL6 9TT

    Received 2 Feb 2022
  11. Decided - Withdrawn6/2019/2429/EM

    Formation of hardstanding and soft landscaping

    7 Elmwood Welwyn Garden City AL8 6LD

    Received 30 Sept 2019
  12. Decided - Withdrawn6/2025/0313/FULL

    Replacement of all first floor windows and a loft conversion with 7 no. new dormer windows, associated alterations, and refurbishments to the existing retail building use class E(a) to facilitate a change of use to an estate agents class E(c)

    41 Wigmores North Welwyn Garden City AL8 6PG

    Received 19 Feb 2025
  13. Decided - Granted6/2016/1307/HOUSE

    Erection of two storey side extension.

    14 Meadow Croft, Hatfield, AL10 0SG

    Received 29 Jun 2016
  14. Decided - Withdrawn6/2020/2780/HOUSE

    Change of use of amenity land to form a vehicular crossover and form hardstanding within the front garden to allow parking

    43 Bushey Ley Welwyn Garden City AL7 3HB

    Received 23 Oct 2020
  15. Decided - Granted6/2022/0110/TPO

    T1 Hornbeam - Reduce by 20% T2 Hornbeam - Reduce height and length of subsiduary branches by 30% T4, T5 and T6 Hornbeam - Reduce subsiduary branches by up to 30%, back to the previous reduction point or closest growth point. T7, T8, T9 and T10 Hornbeam - repollard and reduce in height by up to 0.5m to remove decaying top.

    14 Bluebells Welwyn AL6 0XD

    Received 17 Jan 2022
  16. Decided - Refused6/2019/0568/EM

    Erection of front porch following demolition of existing porch, single storey rear extension and first floor rear extension to change existing dormer into a gable end and alterations to existing fenestration on existing side and rear elevations; including proposed rendering to first floor of existing front elevation

    5 Old Forge Close Welwyn AL6 0SR

    Received 7 Mar 2019
  17. Decided - Refused6/2022/0014/FULL

    Erection of a side extension to existing garage and increase height of the garage from 2.4m to 3m high.

    3 Onslow Close Hatfield AL10 8BU

    Received 5 Jan 2022
  18. Decided - Granted6/2024/0934/TPO

    Reduce Ash tree crown by 1m covered by TPO 922 (2018)

    4 Lea Green Mill Green Lane Hatfield AL9 5NX

    Received 20 May 2024
  19. Decided - Granted6/2022/1112/HOUSE

    Erection of a single storey front extension.

    23 Willow Way Hatfield AL10 9QD

    Received 13 May 2022
  20. Decided - Split6/2021/0543/COND

    Submission of details pursuant to condition 1 (materials samples) and 2 (new and replacement windows and door) on Listed Building Consent 6/2020/1515/LB

    6 Waterside Cottages Mill Green Bush Hall Lane Hatfield AL9 5NY

    Received 18 Feb 2021
  21. Appeal Decided - Allowed6/2021/1277/OUTLINE

    Outline application for redevelopment of the site to provide 151 dwellings with all matters reserved except for access.

    B&Q, Swallowfields, Welwyn Garden City, AL7 1JD

    Received 21 Apr 2021
  22. Decided - Granted6/2020/0270/HOUSE

    Erection of a single storey front extension and a part two storey/ part first floor side and rear extension

    25 Carleton Rise Welwyn AL6 9RP

    Received 30 Jan 2020
  23. Decided - Granted6/2020/1706/COND

    Submission of details pursuant to condition 1 (materials samples) 2 (drawings of new/replacement doors and windows) and 3 (full details of proposed gate) on planning permission 6/2020/0269/HOUSE, dated 16/04/2020

    7 Mimram Walk Welwyn AL6 9EZ

    Received 13 Jul 2020
  24. Decided - Granted6/2021/1835/PN27

    Prior approval for the construction of an additional storey to facilitate the enlargement of the dwellinghouse to a maximum of approximately 9.02m in height.

    33 The Avenue Welwyn AL6 0PW

    Received 11 Jun 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

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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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