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
28,931 approved · 4,812 refused · 2,213 withdrawn. Received dates in our records: 29 Apr 1948 to 29 Oct 2026. Most recent record check: 6 Nov 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 Counts reflect the last collected status; some records may be out of date.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.
24 The Ridgeway, Potters Bar, EN6 4AR
Received 20 Nov 20085 Hanyards Lane, Cuffley, Potters Bar, EN6 4AS
Received 19 Dec 201412 Mannicotts, WELWYN GARDEN CITY, AL8 7BW
Received 20 May 201359 Broad Acres Hatfield AL10 9LE
Received 26 Sept 20141 BEECHFIELD ROAD, WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 3RG
Received 2 Nov 200926 MOORLANDS, WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 4PP
Received 14 Oct 200917 Heath Road Welwyn AL6 0TP
Received 13 Nov 201316 Crossway, Welwyn Garden City, AL8 7EE
Received 11 Jul 201313 Bulls Lane, Hatfield, AL9 7NY
Received 3 Apr 2014Land rear of St Michaels and All Angels Church Mardleybury Road Woolmer Green Knebworth SG3 6JP
Received 11 Nov 20092 Kingswell Ride Cuffley Potters Bar EN6 4LH
Received 12 Jul 20191 The Jinnings, Welwyn Garden City, AL7 4QB
Received 29 Aug 201425 Linkfield, Welwyn Garden City, AL7 4DN
Received 20 Apr 200712 Handside Close Welwyn Garden City AL8 6SR
Received 12 Jul 2004John Lewis & Partners Bridge Road Welwyn Garden City AL8 6TP
Received 1 Nov 201912 The Avenue Welwyn AL6 0PN
Received 13 Aug 2013Willow House, 18 Salisbury Square, Hatfield
Received 24 Jun 2016145 Boundary Lane Welwyn Garden City AL7 4EQ
Received 28 Oct 202433 Glebe Cottages Essendon Hatfield AL9 6HQ
Received 27 Jul 2017Mercury House 1 Broadwater Road Welwyn Garden City AL7 3BQ
Received 8 Mar 201940 THE VINEYARD, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7PU
Received 27 May 2009174 Boundary Lane, Welwyn Garden City, AL7 4DF
Received 26 Apr 2006European Knowledge Centre Eisai Limited Mosquito Way Hatfield AL10 9SN
Received 25 Nov 2024Existing Base Station Bishops Rise Hatfield AL10 9QU
Received 19 Mar 2021Records 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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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