PlanningTrack
Get started

England · Local authority

Welwyn Hatfield planning applications

PlanningTrack collects planning applications and decisions from the public planning register of Welwyn Hatfield Borough Council. Search an address, application reference or proposal. Official Welwyn Hatfield website

Collected application statistics

Collected records · All available dates
40,118Searchable applications
300Recorded as pending
86%Approval rate · 33,650 approved or refused records
4,801Refused applications

28,849 approved · 4,801 refused · 2,206 withdrawn. Received dates in our records: 29 Apr 1948 to 26 Oct 2026. Most recent record check: 30 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2017/1685/EM

    Reduce Cherry tree by 25%

    14 Barn Close Welwyn Garden City AL8 6ST

    Received 10 Jul 2017
  2. Decided - GrantedS6/2008/0646/FP

    RETENTION OF BOUNDARY FENCE

    8 Cecil Crescent Hatfield AL10 0HF

    Received 29 Mar 2008
  3. Decided - Refused6/2017/1779/LAWP

    Certificate of Lawfulness for conversion of garage to habitable space

    1 Mimram Place Welwyn AL6 9HQ

    Received 11 Aug 2017
  4. Decided - GrantedN6/2010/0140/FP

    INSTALLATION OF PATH TO INCLUDE REMOVAL OF 2M SECTION OF HEDGE

    BARNSIDE COURT, OFF HANDSIDE LANE, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 6TN

    Received 25 Jan 2010
  5. Decided - Granted6/2016/2511/HOUSE

    Erection of first floor rear extension with installation of window to side elevation

    40 The Gardens Brookmans Park Hatfield AL9 7UL

    Received 25 Nov 2016
  6. Decided - Refused6/2021/1269/VAR

    Variation of condition 4 (drawings) on planning permission (6/2020/3305/HOUSE)

    6 Lark Rise Hatfield AL10 8RA

    Received 20 Apr 2021
  7. Decided - Withdrawn6/2025/1712/LB

    Erection of a single storey, timber framed, pent roof shed

    20 Northaw Road West Northaw Potters Bar EN6 4NR

    Received 11 Aug 2025
  8. Decided - WithdrawnW6/2013/0808/EM

    Erection of single storey rear extension and two storey side extension with loft conversion

    260 Handside Lane, WELWYN GARDEN CITY, AL8 6TG

    Received 22 Apr 2013
  9. Decided - Granted6/2023/1545/COND

    Submission of details pursuant to condition 1 (external surface materials) on planning permission 6/2023/1047/HOUSE

    6 Barleycroft Green Welwyn Garden City AL8 6JY

    Received 25 Jul 2023
  10. Decided - Granted6/2022/0270/EMT

    Removal of Eucalyptus Tree and replace with a Prunus Accolade flowering Cherry tree in the same location. Application Ref: 6/2022/0218/TC

    14 Elm Gardens Welwyn Garden City AL8 6RY

    Received 7 Feb 2022
  11. Decided - Granted6/2017/2129/EM

    Remove a large Laburnam tree

    28 Hyde Valley Welwyn Garden City AL7 4NA

    Received 15 Sept 2017
  12. Decided - GrantedW6/2008/1945/EM

    ERECTION OF BOUNDARY CHAINLINK FENCE AND HEDGE

    40 REDDINGS, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7LA

    Received 9 Oct 2008
  13. Decided - WithdrawnN6/2015/0990/LUP

    Certificate of lawfulness for proposed single storey side extension with duo pitched roof

    10 Danesbury Park Road Welwyn AL6 9SE

    Received 13 May 2015
  14. Decided - Granted6/2019/0726/VAR

    Variation of condition 14 (Approved plans) on planning permission 6/2018/2085/FULL

    The East Great North Road Welwyn Garden City AL8 7TB

    Received 27 Mar 2019
  15. Decided - Refused6/2023/1334/LAWP

    Certificate of lawfulness for the erection of a glass room attached to the rear extension with glass roof and sides

    2 Youngs Rise Welwyn Garden City AL8 6RU

    Received 28 Jun 2023
  16. Decided - Granted6/2017/0991/PN8

    Prior Approval for single storey rear extension at ground level measuring 3.5m in depth, 2.9m in height and 2.9m to the eaves

    194 Knella Road Welwyn Garden City AL7 3NN

    Received 9 May 2017
  17. Decided - Granted6/2019/0793/EIA

    Redevelopment of High View neighbourhood centre to provide 149 residential dwellings, 19 retail units, doctor's surgery, LEAP play space, new public realm including a new street, landscaping and associated works

    High View Neighbourhood Centre High View

    Received 26 Mar 2019
  18. Decided - GrantedS6/2013/0039/NM

    Non material amendment following approval of planning permission S6/2013/1947/FP - Flat parapet roof to front single storey extension and altered roof lights to the rear

    20 Hanyards Lane, Cuffley, POTTERS BAR, EN6 4AT

    Received 10 Jan 2013
  19. Decided - Granted6/2018/0845/EM

    Erection of a single storey rear extension

    80 Boundary Lane Welwyn Garden City AL7 4DP

    Received 3 Apr 2018
  20. Decided - Refused6/2017/2953/LAWP

    Certificate of lawfulness for the installation of 5 front rooflights and a rear dormer window to facilitate loft conversion

    7 Mardley Wood Welwyn AL6 0UY

    Received 21 Dec 2017
  21. Decided6/2017/1719/TPO

    Reduce crown of 1 x Wild Cherry Tree by up to 25% and fell 1 x Wild Cherry Tree - Conservation Area

    12 Pentley Close Welwyn Garden City AL8 7SH

    Received 1 Aug 2017
  22. Decided - GrantedS6/2014/2527/FP

    Conversion of garage to habitable accommodation and internal alterations

    26 Lavender Close Hatfield AL10 9FW

    Received 18 Nov 2014
  23. Decided - GrantedS6/2004/1304/FP

    ERECTION OF REAR CONSERVATORY

    17 Pine Grove Brookmans Park Hatfield AL9 7BP

    Received 26 Aug 2004
  24. Decided - Granted6/2025/1432/EM

    Removal of approx 1m of hedge length to extend access to front driveway Trim back cotoneaster tree in front garden by approx 1.5m

    7 Elmwood Welwyn Garden City AL8 6LD

    Received 7 Jul 2025

Records are ordered by application ID, not submission date. Use search to find a particular address or proposal.

View all applications

Applications by postcode area

Get emailed about new planning applications in Welwyn Hatfield

Area alerts send a daily or weekly email with new applications and decisions near a postcode, filtered by project type. £29 a month, up to 3 areas. Records are limited to the councils we collect.

Set up an area alert

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