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29,002 approved · 4,819 refused · 2,219 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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.
Brookmans Park Teleport Great North Road Brookmans Park AL9 6NE
Received 18 Jun 2026Land to the north east of King George V Playing Fields Northaw Road East Hertfordshire Cuffley EN6 4RD
Received 20 Apr 202356 Hertford Road Digswell Welwyn AL6 0BX
Received 16 May 20143 Ellenbrook Lane Hatfield Hertfordshire AL10 9RW
Received 14 Apr 202360 Bridge Road Welwyn Garden City AL8 6UR
Received 5 Aug 20194 Moorend Welwyn Garden City AL7 4QL
Received 2 Dec 202149 Mulberry Mead Hatfield AL10 9EH
Received 9 Feb 20216 Swanland Road North Mymms Hatfield AL9 7TG
Received 11 Mar 200410 Little Dell Welwyn Garden City AL8 7HZ
Received 21 Sept 20228-12 First Floor Salisbury Square Hatfield AL9 5AD
Received 6 Mar 202611 Cowper Road, Welwyn Garden City, AL7 3LT
Received 23 Sept 200414 Dolesbury Drive Welwyn AL6 0QF
Received 21 Sept 2017BACKHOUSE ROOM, 116 HANDSIDE LANE, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 6SZ
Received 15 Jun 200947 Poppyfields Welwyn Garden City AL7 2HJ
Received 29 Oct 200430 Birchwood Close Hatfield AL10 0PP
Received 4 Nov 201915 Brickfield Hatfield AL10 8TN
Received 28 Jul 2017Land between 46 & 48 Peplins Way Brookmans Park Hatfield AL9 7UU
Received 3 Aug 2017East Ridge House 9A East Ridgeway Cuffley Potters Bar EN6 4AW
Received 23 Mar 2021Barfrey House, Brocket Road, WELWYN GARDEN CITY, AL8 7TT
Received 30 Apr 201367 Lemsford Lane Welwyn Garden City AL8 6YN
Received 20 Jan 20046 FARM CLOSE, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 6RP
Received 8 Feb 2010BARCLAYS BANK PLC., UNIT 12/12A, HOWARDSGATE, THE HOWARD CENTRE, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 6HA
Received 16 Jan 200658 Pooleys Lane Welham Green Hatfield AL9 7LF
Received 30 Jan 201952 Howardsgate Welwyn Garden City AL8 6BP
Received 23 May 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