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.
England · Local authority
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
28,480 approved · 4,746 refused · 2,169 withdrawn. Received dates in our records: 29 Apr 1948 to 21 Oct 2026. Most recent record check: 27 Oct 2026. Counts reflect the last collected status; some records may be out of date.
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.
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.
123 Handside Lane Welwyn Garden City AL8 6TA
Received 6 Nov 201411 Meadow Green Welwyn Garden City AL8 6SS
Received 19 May 2021OCADO LTD, GYPSY MOTH AVENUE, HATFIELD, HERTFORDSHIRE, AL10 9BD
Received 6 Aug 2007University of Hertfordshire, College Lane, Hatfield, AL10 9AB
Received 27 Aug 201496 Mount Way, Welwyn Garden City, AL7 4LB
Received 2 Sept 201644 HANDSIDE LANE, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 6SJ
Received 22 Jan 2008GARAGES 1 - 43 AT, HARWOOD HILL, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7AP
Received 8 Oct 200430 Uplands Welwyn Garden City AL8 7EW
Received 25 Jul 201732 Huggins Lane, Welham Green, Hatfield, AL9 7LE
Received 12 Jun 2014Entech House London Road Woolmer Green SG3 6JR
Received 28 Nov 20197 High Oaks Road, Welwyn Garden City, AL8 7BJ
Received 26 Oct 20219 Selwyn Drive Hatfield AL10 9NH
Received 18 Aug 2017Beadles Volkswagen Van Centre Harpsfield Broadway Hatfield AL10 9TF
Received 31 Oct 202288 Garden Avenue Hatfield AL10 8LQ
Received 6 Sept 201822 Attimore Road Welwyn Garden City AL8 6LW
Received 12 Nov 201861 Tolmers Road, Potters Bar, EN6 4JG
Received 5 Jan 2009High Street Car Park High Street Welwyn AL6 9EQ
Received 28 Jan 20267 Handside Close, Welwyn Garden City, AL8 6SR
Received 27 Apr 201532 GUESSENS ROAD, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 6RA
Received 26 Jan 200923 Tolmers Gardens Cuffley Potters Bar EN6 4JE
Received 12 Oct 2017Land rear of 59 Station Road, Cuffley, POTTERS BAR, EN6 4HX
Received 25 Apr 2013Former Shredded Wheat Site Broadwater Road Welwyn Garden City AL8 6UN
Received 22 Jul 201926 Longcroft Lane, Welwyn Garden City, AL8 6EA
Received 16 Mar 2015Royal Veterinary College, Hawkshead House, Hawkshead Lane, North Mymms, Hatfield, AL9 7TA
Received 26 Aug 2014Records are ordered by application ID, not submission date. Use search to find a particular address or proposal.
View all applicationsArea 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 alertStart 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
Understanding planning · 13 min read
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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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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Understand planning approval rates with an interactive calculator, worked examples and comparison table. Check sample sizes, outcomes and coverage before comparing.
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