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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
23,882Searchable applications
313Recorded as pending
86%Approval rate · 19,539 approved or refused records
2,719Refused applications

16,820 approved · 2,719 refused · 1,237 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2023/0264/EMT

    T1- crown reduce 1 x sycamore tree by 2-3m, cut back from adj building, and remove deadwood.

    Welwyn Rugby Football Club Hobbs Way Welwyn Garden City AL8 6HX

    Received 3 Feb 2023
  2. Decided - Granted6/2017/0120/HOUSE

    Erection of single storey rear extension following demolition of existing rear extension

    34 Gresley Close Welwyn Garden City AL8 7QB

    Received 24 Jan 2017
  3. Decided - Granted6/2022/2230/FULL

    Installation of a “private-wire” electricity cable between the Energy Centre, Tewin Road and Colt Technology Services Group Limited, 20 Black Fan Road, Welwyn Garden City, AL7 1QA (Option 5).

    20 Black Fan Road Welwyn Garden City AL7 1QA

    Received 27 Sept 2022
  4. Decided6/2019/0293/TPO

    Various Tree Works -Conservation area Reduce 1x Cherry tree by 30% Reduce1x maple Tree by 30% reduce 1x Small conifer by 30% Fell 1x Small hawthorn

    85 Attimore Road Welwyn Garden City AL8 6LG

    Received 8 Feb 2019
  5. Decided - Granted6/2024/1313/HOUSE

    Installation of two rooflights to the side roof slope, two windows to the front and rear elevations, the conversion of the attic and associated minor internal alterations

    23 Pentley Park Welwyn Garden City AL8 7RT

    Received 9 Jul 2024
  6. Decided - Granted6/2025/0840/HOUSE

    Erection of single storey front, side and rear extension following removal of conservatory

    47 Broomfield Road Welwyn AL6 9DL

    Received 2 May 2025
  7. Decided - Granted6/2026/0330/EM

    Proposed increase to the width of the existing permeable block paved driveway

    45 Valley Road Welwyn Garden City AL8 7DH

    Received 23 Feb 2026
  8. Decided - Granted6/2022/0990/LB

    Replacement ceiling and timber strengthening works

    Bush Hall Hotel Chequers Hatfield AL9 5NT

    Received 26 Apr 2022
  9. Decided - Granted6/2020/0085/HOUSE

    Retention of single storey outbuilding in rear garden

    6 Pine Grove Brookmans Park Hatfield AL9 7BS

    Received 14 Jan 2020
  10. Decided - Granted6/2024/0150/EM

    Erection of single storey side/rear extension, following demolition of existing garage and garden canopy

    44 Lady Grove Welwyn Garden City AL7 4DU

    Received 25 Jan 2024
  11. Decided - Withdrawn6/2025/1979/HOUSE

    Installation of detached side dormers following partial demolitions of existing dormers

    9 South Drive Cuffley Potters Bar EN6 4HP

    Received 15 Sept 2025
  12. Decided - Granted6/2024/1706/TPO

    TPO 784 (2018) T1, T2, T3: Repeat crown cut back as per planning consent 6/2015/1619/TPO. (6/2015/1619/TPO proposed tree works: T1 Crown lift the low secondary branches (including the epicormic growth) on the north-side of trunk to a height of 7m. T2 Crown lift the low secondary branches (including the epicormic growth) on the north-side of trunk to a height of 7m. T3 Reduce the low and mid crown section by up to 3m to provide clearance for the building.)

    Unit B Bridgefields Welwyn Garden City AL7 1AS

    Received 5 Sept 2024
  13. Decided - Granted6/2023/0462/COND

    Submission of details pursuant to condition number 7 (Ground Investigation), on planning permission 6/2020/2248/OUTLINE

    Roundhouse Farm Land off Bullens Green Lane Colney Heath

    Received 28 Feb 2023
  14. Decided - Granted6/2019/2655/PN8

    Prior approval for the erection of a single storey rear extension measuring 8.0m in depth, 2.775m in height and 2.775m to the eaves

    33 Dixons Hill Close Welham Green Hatfield AL9 7EF

    Received 21 Oct 2019
  15. Decided - Granted6/2022/1637/TPO

    Reduce 1 x Oak tree by 1.5m in height and width covered by TPO T1

    20 Bracken Lane Welwyn AL6 0RB

    Received 12 Jul 2022
  16. Decided - Granted6/2017/0285/COND

    Approval of details reserved by condition 4 (landscaping) on planning permission 6/2015/1957/MAJ

    Former Argos Direct Distribution 1 Bessemer Road Welwyn Garden City AL7 1HF

    Received 15 Feb 2017
  17. Decided - Granted6/2023/1047/HOUSE

    Erection of part single and part two storey rear extensions following demolition of conservatory, a loft conversion, alterations to openings and driveway

    6 Barleycroft Green Welwyn Garden City AL8 6JY

    Received 18 May 2023
  18. Decided - Granted6/2017/0444/FULL

    Creation of earth bund alongside the M25, measuring approx. 440m long and 25m wide with a maximum height of 4m.

    Woodhurst Farm Cattlegate Road Cuffley Enfield EN2 8AU

    Received 7 Mar 2017
  19. Decided - Granted6/2024/1996/PN33

    Change of use from commercial, business and service (Use Class E) to dwellinghouse (Use Class C3) to form one dwelling

    22B London Road Woolmer Green SG3 6JP

    Received 16 Oct 2024
  20. Decided - Granted6/2020/0963/EMT

    Reduce 1 x Field Maple Tree by 30%

    128 The Commons Welwyn Garden City AL7 4SB

    Received 29 Apr 2020
  21. Decided - Granted6/2022/1134/PN8

    Prior approval for the erection of a single story rear extension measuring 6m in depth, 3.4m in height, 2.6m to the eaves

    76 Birchwood Avenue Hatfield AL10 0PS

    Received 17 May 2022
  22. Decided - Granted6/2022/2724/LAWP

    Certificate of lawfulness for proposed two storey rear extension

    93 Harmer Green Lane Digswell Welwyn AL6 0EY

    Received 1 Dec 2022
  23. Decided - Granted6/2017/0439/FULL

    Erection of single storey front extension at ground level to the main entrance of the Sweet Briar Building

    Swallow Dell Primary School Blackthorn Road Welwyn Garden City AL7 3JP

    Received 7 Mar 2017
  24. Decided - Granted6/2021/2750/HOUSE

    Erection of a two storey rear extension.

    81 Knightsfield Welwyn Garden City AL8 7JE

    Received 22 Sept 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

  • 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.

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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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