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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
30,721Searchable applications
303Recorded as pending
87%Approval rate · 25,573 approved or refused records
3,364Refused applications

22,209 approved · 3,364 refused · 1,637 withdrawn. Received dates in our records: 29 Apr 1948 to 13 Oct 2026. Most recent record check: 19 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2016/1553/HOUSE

    Erection of single storey rear extension and installation of 4no rooflights

    124 Mill Green Road, Welwyn Garden City, AL7 3XE

    Received 29 Jul 2016
  2. Decided - GrantedE6/1948/640/

    Conversion of store to boiler house

    Messrs Carnegie Chemicals Ltd, Tewin Road, Welwyn Garden City, AL7 1BW

    Received 15 Jun 1948
  3. Decided - Granted6/2020/3120/EM

    Erection of garden room in rear garden

    17 Springfields Welwyn Garden City AL8 6XS

    Received 23 Nov 2020
  4. Decided - Granted6/2024/0179/EMT

    Ash tree - remove the declining tree.

    8 Walden Place Welwyn Garden City AL8 7PG

    Received 29 Jan 2024
  5. Decided - Granted6/2023/1347/COND

    Submission of details pursuant to condition 19 (Flood Risk Assessment) on planning permission S6/2015/1342/PP

    Land to the north east of King George V Playing Fields Northaw Road East Cuffley EN6 4RD

    Received 29 Jun 2023
  6. Decided - Granted6/2022/0865/TPO

    5 DAY NOTICE: G1 - Fell 1x Dead weeping willow and fell 1x fallen willow stem. No works to the last stem which is arched into the pond.

    Woolmer Green Pond New Road Knebworth SG3 6JX

    Received 11 Apr 2022
  7. Decided - Granted6/2020/1101/PN8

    Prior approval for the erection of a single storey rear extension measuring 8 metres in depth, 3.25 metres in height and 3.25 metres to the eaves

    2 Danesbury Park Road Welwyn AL6 9SE

    Received 15 May 2020
  8. Decided - Granted6/2016/2394/LAWP

    Certificate of lawfulness for the erection of single storey rear extension, roof dormer, new porch and velux roof window

    8A Rosecroft Lane Welwyn AL6 0UB

    Received 7 Nov 2016
  9. Decided6/2025/1952/TC

    1 x Silver birch to remove in sections to ground level The tree is dead

    10 Coneydale Welwyn Garden City AL8 7RZ

    Received 11 Sept 2025
  10. Decided - Granted6/2025/1252/EMT

    1 x Cherry plum to cut back branches to clear driveway by 1.5m

    60 Handside Lane Welwyn Garden City AL8 6SJ

    Received 18 Jun 2025
  11. Decided - GrantedS6/2014/1245/FP

    Retention of new sectional roller door with clear openings to the east elevation

    Unit 3 Apex Point, Travellers Lane, Welham Green, Hatfield, AL9 7HB

    Received 2 Jun 2014
  12. Decided - Withdrawn6/2016/1659/HOUSE

    Erection of two storey side extension and formation of 2no. parking spaces

    84 High Dells Hatfield AL10 9HU

    Received 8 Aug 2016
  13. Decided - Granted6/2024/1588/EM

    Replacement roof/ridge tiles as well as membrane and batons. Like for like replacement. Proposed tiles are Dreadnought or ACME

    30 Fordwich Road Welwyn Garden City AL8 6EY

    Received 21 Aug 2024
  14. Decided - Refused6/2020/1364/LAWE

    Certificate of lawfulness for the change of use from dwellinghouse (C3) to house of multiple occupation (C4).

    62 Eagle Way Hatfield AL10 8RE

    Received 15 Jun 2020
  15. Appeal Decided - Dismissed6/2019/1703/EM

    Installation of glass canopy above front door

    12 Lytton Gardens Welwyn Garden City AL8 6EG

    Received 10 Jul 2019
  16. Decided - Granted6/2025/0103/LAWP

    Certificate of lawfulness for hip-to-gable loft conversion with rear box dormer and front roof windows

    8 Astwick Avenue Hatfield AL10 9LA

    Received 22 Jan 2025
  17. Decided - Granted6/2024/1434/HOUSE

    Erection of greenhouse

    31-33 Ayot Green Ayot St Peter Welwyn AL6 9AB

    Received 30 Jul 2024
  18. Decided6/2021/1743/TC

    Fell 1 x Norway Maple tree, remove low limb from 1 x Oak tree covered by conservation area

    3 Ashley Close Welwyn Garden City AL8 7LH

    Received 3 Jun 2021
  19. Decided - Refused6/2019/2211/HOUSE

    Erection of double garage

    6 Lea Green Mill Green Lane Hatfield AL9 5NX

    Received 5 Sept 2019
  20. Decided - Granted6/2019/1090/HOUSE

    Erection of two storey side extensions

    24 Holloways Lane, Welham Green, Hatfield, AL9 7NP

    Received 7 May 2019
  21. Decided - GrantedS6/2014/2465/FP

    Erection of single storey rear and side extension

    47 Heron Way Hatfield AL10 8QT

    Received 10 Nov 2014
  22. Decided - Granted6/2024/0612/TPO

    Reduce T1 Coppiced Oaks by 25% covered by TPO 108 G5 - to control roots and stability as the tree is near the house and to reduce leaf-fall onto neighbours property in winter Reduce T2 Oak by 25% covered by TPO 108 G4 - as the tree leans towards the light and needs some re-balancing for stability

    19 Mardley Wood Welwyn AL6 0UY

    Received 2 Apr 2024
  23. Decided - Refused6/2021/3469/HOUSE

    Erection of ancillary annexe following demolition of existing garage

    123 Tolmers Road Cuffley Potters Bar EN6 4JW

    Received 13 Dec 2021
  24. Decided - Granted6/2015/1525/LAWP

    Certificate of lawfulness for the erection of a two storey rear extension

    72 New Park Road, Newgate Street, Hertford, SG13 8RF

    Received 20 Jul 2015

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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