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
27,224 approved · 4,488 refused · 2,047 withdrawn. Received dates in our records: 29 Apr 1948 to 20 Oct 2026. Most recent record check: 26 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 Counts reflect the last collected status; some records may be out of date.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.
10 Roman Way Welwyn AL6 9RJ
Received 6 Feb 20088 Tolmers Avenue, Cuffley, Potters Bar, EN6 4QE
Received 9 Feb 2016GREAT NAST HYDE HOUSE, WILKINS GREEN LANE, HATFIELD, HERTFORDSHIRE, AL10 9RB
Received 3 Jul 20089 Mymms Drive Brookmans Park AL9 7AE
Received 3 Jan 202515 Nursery Gardens Welwyn Garden City AL7 1SF
Received 20 Sept 2022Asda Superstore 98 Town Centre Hatfield AL10 0JP
Received 10 Jul 201933 Church Lane, Northaw, Potters Bar, EN6 4NX
Received 12 Jun 202012 Somers Square, Welham Green, Hatfield, AL9 7PS
Received 17 Jan 201457 Warren Way Digswell Welwyn AL6 0DL
Received 15 Oct 202450 Sherrardspark Road Welwyn Garden City AL8 7LB
Received 12 Feb 20191 Crookhams Welwyn Garden City AL7 1PG
Received 13 Nov 202524 ONSLOW CLOSE, HATFIELD, HERTFORDSHIRE, AL10 8BU
Received 12 Dec 2008The Nook 3 Pottersheath Road Welwyn AL6 9SY
Received 27 Feb 200729 Glebe Cottages, Essendon, Hatfield, AL9 6HQ
Received 29 Feb 201612 Wilga Road Welwyn AL6 9PS
Received 23 Jul 202513 Digswell Road, Welwyn Garden City, AL8 7PD
Received 11 Aug 2016Salisbury Square Hatfield AL7 5AD
Received 23 Mar 202620 Beehive Green Welwyn Garden City AL7 4BG
Received 25 Jan 2021LAND AT, GREEN CLOSE & STATION ROAD, BROOKMANS PARK, HATFIELD, HERTFORDSHIRE, AL9 7ST
Received 11 Nov 200947 Butterwick Way Welwyn AL6 9GH
Received 11 Mar 202187 Lords Wood Welwyn Garden City AL7 2HG
Received 8 May 202611 Meadow Green Welwyn Garden City AL8 6SS
Received 21 Apr 20212 Barleycroft Green, Welwyn Garden City, AL8 6JY
Received 23 Oct 2013Bridge House, 29 Lemsford Village, Welwyn Garden City, AL8 7TN
Received 29 Apr 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