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
28,876 approved · 4,802 refused · 2,208 withdrawn. Received dates in our records: 29 Apr 1948 to 26 Oct 2026. Most recent record check: 3 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 Counts reflect the last collected status; some records may be out of date.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.
7 Danesbury Lane Welwyn AL6 9SG
Received 2 May 202415 Guessens Road Welwyn Garden City AL8 6QL
Received 15 Nov 202442 Handside Lane, Welwyn Garden City, AL8 6SJ
Received 6 Aug 200999 WOODHALL LANE, WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 3TH
Received 4 Aug 2009Land at and to rear of 19 Kingsmead, Hill Rise and Plough Hill, Cuffley, Potters Bar, EN6 4EE
Received 28 Sept 20152 Marsden Road Welwyn Garden City AL8 6YF
Received 14 Jul 202113 Sandpit Road Welwyn Garden City AL7 3TW
Received 26 Oct 201813 Elmoor Avenue Welwyn AL6 9PG
Received 26 May 2022160 Harwood Hill, Welwyn Garden City, AL8 7AG
Received 27 Jun 201646 The Common Hatfield AL10 0LU
Received 19 Jun 201449 Crossway Welwyn Garden City AL8 7ED
Received 8 Dec 202126 Melbourne Court, Welwyn Garden City, AL8 6LL
Received 20 Feb 2014Land southeast of Welwyn Garden City to the north of the A414 and straddling Birchall/Cole Green Lane
Received 16 Jun 202220 Parkway Gardens Welwyn Garden City AL8 6JW
Received 10 Nov 202217 Attimore Road, Welwyn Garden City, AL8 6LH
Received 20 Jan 201565 BEEHIVE LANE, WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 4BJ
Received 9 Feb 201037 Blakemere Road, Welwyn Garden City, AL8 7PQ
Received 1 Jan 198752 Rosedale Welwyn Garden City AL7 1DR
Received 19 Dec 2019Land off London Road Woolmer Green SG3 6JZ
Received 7 Aug 20262 Birchwood Avenue Hatfield AL10 0PQ
Received 27 Jun 200856 Blakemere Road Welwyn Garden City AL8 7PN
Received 24 Mar 2025The Warren 8 Carbone Hill Northaw Potters Bar EN6 4PL
Received 11 Dec 201824 Blakemere Road, Welwyn Garden City, AL8 7PJ
Received 5 Nov 2014Royal Veterinary College, Hawkshead Lane, North Mymms, Hatfield, AL9 7TA
Received 9 Oct 2013Records 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