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
29,002 approved · 4,819 refused · 2,219 withdrawn. Received dates in our records: 29 Apr 1948 to 29 Oct 2026. Most recent record check: 8 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 Counts reflect the last collected status; some records may be out of date.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.
University of Hertfordshire, College Lane, Hatfield, AL10 9AB
Received 18 Dec 20137 STONEMEAD, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7LX
Received 30 Sept 200969 Lodgefield Welwyn Garden City AL7 1SE
Received 1 Oct 2018139 Tolmers Road Cuffley Potters Bar EN6 4JW
Received 9 Mar 2006Chequersfield Welwyn Garden City AL7 4SX
Received 30 Mar 20208 Aldock, Welwyn Garden City, AL7 4QF
Received 27 Nov 2014Ayot Cottage Hill Farm Lane Welwyn AL6 9BT
Received 20 Jul 201829 Sheepcote Welwyn Garden City AL7 4QA
Received 13 Jan 202693 Northaw Road West Northaw Potters Bar EN6 4NS
Received 31 Mar 202118 Starling Lane Cuffley Potters Bar EN6 4JX
Received 21 Jun 2021The Frythe, 5 Digswell Hill, WELWYN, AL6 9AR
Received 15 Mar 2013138 Oakdale Welwyn Garden City AL8 7QX
Received 14 Jan 2025Stables Opposite Ayot Farm Bibbs Hall Lane Ayot St Lawrence AL6 9BY
Received 20 Mar 2024Unit 65 and 65a The Galleria, Comet Way, Hatfield, AL10 0XR
Received 22 Apr 201322 Dellsome Lane, Welham Green, Hatfield, AL9 7NF
Received 25 Jun 2014MARSHALL, SWALLOWFIELDS, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8
Received 22 Aug 2007Firleigh 15A Wendover Drive Welwyn AL6 9LT
Received 23 Oct 202052 Newfields Welwyn Garden City AL8 6YT
Received 3 Aug 202636 Bluebell Way Hatfield AL10 9FJ
Received 17 Jan 201820 Spinney Lane Welwyn AL6 9TF
Received 23 Dec 2016166 Parkway Welwyn Garden City AL8 6HZ
Received 7 Jan 2022126 Handside Lane Welwyn Garden City AL8 6SZ
Received 5 Jul 2023GARAGES 1 - 16 AT, FALLOWFIELD, WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 1EE
Received 8 Oct 2004Annexe to rear of 4 Digswell Hill Welwyn AL6 9AL
Received 20 Jul 2007Records 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.

Property research · 13 min read
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