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
25,126Searchable applications
313Recorded as pending
86%Approval rate · 20,639 approved or refused records
2,825Refused applications

17,814 approved · 2,825 refused · 1,328 withdrawn. Received dates in our records: 5 Jan 2005 to 2 Oct 2026. Most recent record check: 15 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2020/0137/EM

    Fell 1x Willow tree

    1 The Links Welwyn Garden City AL8 7DS

    Received 20 Jan 2020
  2. Decided - Refused6/2021/1461/HOUSE

    Erection of part two storey rear and single storey side extension

    181 Howlands Welwyn Garden City AL7 4RL

    Received 10 May 2021
  3. Decided - Granted6/2021/1911/HOUSE

    Erection of a single storey side, front and rear extension and demolition of garage to rear of property

    4 Bramble Road Hatfield AL10 9SA

    Received 23 Jun 2021
  4. Decided - Granted6/2021/0086/EMT

    Pollarding of Lime tree at the front of the property

    11 The Old Drive Welwyn Garden City AL8 6TB

    Received 12 Jan 2021
  5. Decided6/2026/0058/TC

    1 x Goat Willow to remove upper left stem over neighbouring garden, remove right stem to around 2m. Reduce lateral branches over the neighbouring garden by around 2.5m. Reducing tree to prevent excessive overhang and nuisance to neighbours

    29 Sheepcote Welwyn Garden City AL7 4QA

    Received 14 Jan 2026
  6. Decided - Granted6/2019/1276/EM

    Erection of the summerhouse in the rear garden

    10 The Orchard Welwyn Garden City AL8 7PL

    Received 29 May 2019
  7. Decided - Granted6/2023/1084/HOUSE

    Erection of two storey rear, two storey side extension. Retention of existing garage (part retrospective)

    3 Aldock Welwyn Garden City Hertfordshire AL7 4QF

    Received 23 May 2023
  8. Decided - Granted6/2026/1157/EMT

    1 x Beech to reduce by approx 2.5m height and width. Lift over cabin by 3m

    72 Sweet Briar Welwyn Garden City AL7 3EA

    Received 2 Jul 2026
  9. Decided - Granted6/2024/0240/HOUSE

    Alterations to rear facade including new doors, replacement garage door, partial conversion of garage, insertion of rooflight and new sedum roof

    30 Guessens Road Welwyn Garden City AL8 6RA

    Received 6 Feb 2024
  10. Under Consideration6/2026/1623/EM

    EV Charger installation

    5 Coneydale Welwyn Garden City AL8 7RX

    Received 17 Sept 2026
  11. Decided - Granted6/2021/2925/TPO

    T16 - Sweet Chestnut - Crown reduce by 25% and lift the main branches to 2.5 metres to maintain size and shape. T17 -Oak - Crown reduce by 30% to maintain size and shape. T18 -Sweet Chestnut - Crown reduce by 25% and lift the main branches to 2.5 metres to maintain size and shape.

    12 Lower Mardley Hill Welwyn AL6 0SQ

    Received 12 Oct 2021
  12. Decided - Refused6/2018/1344/LAWP

    Certificate of lawfulness for the erection of single storey basement and six single storey outbuildings

    27 The Ridgeway Cuffley Potters Bar EN6 4BB

    Received 21 May 2018
  13. Decided - Granted6/2026/0955/EM

    Replacement of existing box hedge (in poor condition due to disease) with a low Lonicera Nitida hedge in the same position and scale, maintaining the existing formal appearance and height

    17 Elmwood Welwyn Garden City AL8 6LD

    Received 1 Jun 2026
  14. Decided - Granted6/2020/3123/EM

    Erection of a part two storey and part single storey rear extension

    11 Thumbswood Welwyn Garden City AL7 4QE

    Received 23 Nov 2020
  15. Decided - Granted6/2018/0949/PN8

    Prior approval for the erection of a single storey rear extension measuring 4m in depth, 3m in height and 2.85m to the eaves

    7 Hunters Way Welwyn Garden City AL7 4NT

    Received 9 Apr 2018
  16. Decided - Granted6/2026/0452/EM

    Replacement shed 8ftx16ft

    15 Brooms Close Welwyn Garden City AL8 7JA

    Received 12 Mar 2026
  17. Decided - Refused6/2018/2037/EM

    Erection of single storey rear extension

    17 Sandpit Road Welwyn Garden City AL7 3TW

    Received 6 Aug 2018
  18. Decided6/2019/2821/TC

    Reduce 1x Ash tree by 33%

    16 Walden Road Welwyn Garden City AL8 7PF

    Received 7 Nov 2019
  19. Decided6/2025/0258/TC

    The tree to be felled is in the south-west corner of the garden and is considered to be dead and a danger if it fell, to both this property and the neighbours. Labelled as 'UNKN 8m (DEAD)' on drawing 3698 PL01B.pdf

    20 Rooks Hill Welwyn Garden City AL8 6ET

    Received 12 Feb 2025
  20. Appeal Decided - Dismissed6/2020/2852/HOUSE

    First floor side extension

    Sawmill Cottage Waterend Lane Ayot St Peter Welwyn AL6 9BB

    Received 30 Oct 2020
  21. Decided6/2021/3311/TC

    To prune a rear boundary ornamental plum tree hedge/trees by 25%. It spreads across whole rear boundary.

    19 Crossway Welwyn Garden City AL8 7ED

    Received 23 Nov 2021
  22. Decided - Granted6/2024/1769/EMT

    1 x Silver birch (left hand tree) to remove in sections to ground level.

    3 Lodgefield Welwyn Garden City AL7 1SD

    Received 12 Sept 2024
  23. Decided - Granted6/2018/0519/HOUSE

    Erection of a single storey front extension

    21 Foxglove Close Hatfield AL10 8PH

    Received 20 Feb 2018
  24. Appeal Decided - Dismissed6/2017/1246/FULL

    Erection of two bedroom dwelling

    Rear of 11 The Green Welwyn AL6 9EA

    Received 7 Jun 2017

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