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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
29,817Searchable applications
307Recorded as pending
87%Approval rate · 24,770 approved or refused records
3,293Refused applications

21,477 approved · 3,293 refused · 1,587 withdrawn. Received dates in our records: 29 Apr 1948 to 13 Oct 2026. Most recent record check: 18 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 Counts reflect the last collected status; some records may be out of date.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 - Split6/2021/0299/COND

    Submission of details pursuant to conditions 3 (materials), 4 (roof details), 5 (landscape works), 6 (accessible housing) on planning permission 6/2019/1699/FULL.

    1 Roe Green Close Hatfield AL10 9PD

    Received 1 Feb 2021
  2. Decided - Granted6/2025/0419/ADV

    Installation of illuminated signage and logos mounted on building façade

    Hertfordshire Constabulary Stanborough Road Welwyn Garden City AL8 6XF

    Received 6 Mar 2025
  3. Decided - Granted6/2025/0346/HOUSE

    Proposed garage conversion, front extension extending the garage and rear extension

    55 Brookside Crescent Cuffley Potters Bar EN6 4QP

    Received 24 Feb 2025
  4. Decided - Granted6/2023/1378/EM

    Erection of single storey rear extension with insertion of rooflight, following demolition of existing conservatory, part conversion and raising of roof to garage with single storey extension to rear of garage

    2 The Lawns Welwyn Garden City AL8 7HU

    Received 3 Jul 2023
  5. Decided - Granted6/2024/0797/LB

    Replacement of a side window, installation of 4 rooflights and changes to internal configuration on existing garage

    1 The Forge Coopers Lane Northaw Potters Bar EN6 4NF

    Received 29 Apr 2024
  6. Decided - WithdrawnS6/2013/1785/FP

    Change of use from existing B1 (Office) to four residential flats with retention of class A1 (Retail) on part ground floor, with associated internal and external alterations

    Chequers House, 1-5 Park Street, Hatfield, AL9 5AT

    Received 6 Aug 2013
  7. Decided - Granted6/2020/2494/EMT

    Fell 1 x Honey Locust

    22 Sheepcote Welwyn Garden City AL7 4QD

    Received 29 Sept 2020
  8. Decided6/2020/2323/TC

    Leylandii - Reduce in height by approx. 45%.

    8 Marsden Green Welwyn Garden City AL8 6YA

    Received 10 Sept 2020
  9. Decided6/2023/0406/TC

    1 x Golden Cypress to fell to ground level - Declining health

    9 Elmwood Welwyn Garden City AL8 6LD

    Received 22 Feb 2023
  10. Decided - Granted6/2016/0846/HOUSE

    Erection of single storey rear extension

    63 Dalewood, Welwyn Garden City, AL7 2JP

    Received 4 May 2016
  11. Decided - Granted6/2018/3123/HOUSE

    Erection of single storey rear extension and front boundary wall and gates

    55 Homewood Avenue Cuffley Potters Bar EN6 4QQ

    Received 7 Dec 2018
  12. Decided - Refused6/2018/1406/PN11

    Prior approval for change of use of site and building from B1(a) offices to C3 residential

    Amberley 33-35 Wellfield Road Hatfield AL10 0BY

    Received 22 May 2018
  13. Decided - Granted6/2020/0801/PN11

    Prior approval for change of use of first and second floors from office (B1(a)) to dwellinghouse (C3) to create one dwellinghouse

    25-27 Town Centre, Hatfield, AL10 0JT

    Received 23 Mar 2020
  14. Decided - Granted6/2017/0558/EM

    Erection of single store rear extension following demolition of existing conservatory and relocation of front entrance

    15 Broomhills Welwyn Garden City AL7 1RG

    Received 20 Mar 2017
  15. Decided - Granted6/2016/2580/HOUSE

    Erection of boundary wall and fence following removal of existing hedge

    11 Robbery Bottom Lane Welwyn AL6 0UH

    Received 5 Dec 2016
  16. Decided - WithdrawnN6/2013/2738/FP

    Change of use of amenity land to residential and erection of two storey side extension

    73 Knightsfield, Welwyn Garden City, AL8 7JE

    Received 24 Dec 2013
  17. Under Consultation6/2026/1481/TC

    Remove Ash tree stem to ground level

    82 Attimore Road Welwyn Garden City AL8 6LP

    Received 24 Aug 2026
  18. Decided - GrantedS6/2014/2147/FP

    Roof alterations including dormers to both sides of the dwelling to accommodate loft conversion to habitable space

    6 Burleigh Way, Cuffley, Potters Bar, EN6 4LJ

    Received 30 Sept 2014
  19. Decided - RefusedW6/2013/2054/EM

    Erection of two storey rear extension

    47 Uplands, Welwyn Garden City, AL8 7EN

    Received 20 Sept 2013
  20. Decided - GrantedW6/2015/1256/EM

    Insertion of window

    9 Beechfield Road, Welwyn Garden City, AL7 3RG

    Received 15 Jun 2015
  21. Decided6/2021/0347/TC

    Reshape 1 x Macracarpa tree (G1) by 10%, reduce 1 x Conifer (G2) by 50%, reduce 1 x Magnolia tree (T1) by 3ft, reduce 1 x Cherry tree (T2) by 20% covered by conservation area

    104 Handside Lane Welwyn Garden City AL8 6SY

    Received 4 Feb 2021
  22. Decided - Granted6/2019/1519/EM

    Fell 1x Conifer tree

    1 Woodside House Bridge Road Welwyn Garden City AL8 6UJ

    Received 21 Jun 2019
  23. Decided - Granted6/2022/0610/EMT

    T1 Apple tree x1 - fell

    196 Handside Lane Welwyn Garden City AL8 6TD

    Received 15 Mar 2022
  24. Decided - Granted6/2022/2140/HOUSE

    Erection of new two storey front and side extension and two storey part rear and single storey rear extension

    24 Homewood Avenue Cuffley Potters Bar EN6 4QG

    Received 14 Sept 2022

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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