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29,002 approved · 4,819 refused · 2,219 withdrawn.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: 9 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 Counts reflect the last collected status; some records may be out of date.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.
63 Carleton Rise Welwyn AL6 9RQ
Received 1 Jul 20143 Beauchamps Welwyn Garden City AL7 1FG
Received 18 Aug 201513 Holwell Court Hatfield AL9 5RL
Received 1 Jan 1988Royal Veterinary College Hawkshead Lane North Mymms Hatfield AL9 7TA
Received 4 Oct 201920 Walden Road, Welwyn Garden City, AL8 7PF
Received 25 Jan 201614 Broadfield Place Welwyn Garden City AL8 6LJ
Received 23 Dec 202417 Barleycroft Green Welwyn Garden City AL8 6JY
Received 30 Aug 202320 Tolmers Avenue, Cuffley, Potters Bar, EN6 4QA
Received 29 Oct 201424 Parkfields, Welwyn Garden City, AL8 6ED
Received 8 Sept 201569 KNIGHTSFIELD, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7JE
Received 1 Jun 20097 Fore Street Hatfield AL9 5AN
Received 4 Apr 202340 Springfields Welwyn Garden City Hertfordshire AL8 6XN
Received 16 Aug 202238 Woodhall Court, Welwyn Garden City, AL7 3TD
Received 19 Aug 2016133 The Ridgeway Cuffley Potters Bar Hertfordshire EN6 4BG
Received 1 Aug 202222 Parkway Welwyn Garden City AL8 6HG
Received 15 Jun 202153 HOWLANDS, WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 4RA
Received 5 Nov 2007Land adjacent to 15 Mardleybury Road Woolmer Green Knebworth SG3 6SG
Received 7 Oct 200824 Garden Avenue Hatfield AL10 8LN
Received 7 Apr 2026HATFIELD TOWN CENTRE EAST, HATFIELD, HERTFORDSHIRE
Received 22 Dec 2009LAND ADJACENT TO 26 BARLEYCROFT ROAD, WELWYN GARDEN CITY, HERTFORDSHIRE
Received 9 Oct 2008Red Lion Hotel 88 Great North Road Hatfield AL9 5EU
Received 19 Feb 2026North Mymms Park Crosbys Cottage Tollgate Road North Mymms Hatfield AL9 7TR
Received 16 Aug 20228 Breaks Road Hatfield AL10 8TR
Received 22 Jun 20231 Bluebells Welwyn AL6 0XD
Received 13 Mar 2017Records 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