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
28,911 approved · 4,806 refused · 2,210 withdrawn. Received dates in our records: 29 Apr 1948 to 29 Oct 2026. Most recent record check: 5 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 Counts reflect the last collected status; some records may be out of date.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.
11 Selwyn Crescent Hatfield AL10 9NL
Received 5 Dec 20163 Spindleberry Close Oaklands Welwyn AL6 0SJ
Received 7 Feb 2006HAZEL GROVE PRIMARY SCHOOL SITE, HATFIELD, HERTFORDSHIRE, AL10 9DX
Received 2 Nov 2009GE Healthcare, 71 Great North Road, Hatfield, AL9 5DB
Received 12 Sept 2014Barn Theatre Barn Close Welwyn Garden City AL8 6ST
Received 18 Jul 2025Land Rear of, 44 & 46 Hill Rise, POTTERS BAR, Hertfordshire, EN6 4EJ
Received 3 Aug 200712 Stuart Road Welwyn AL6 9JN
Received 14 Sept 20186 Hawthorns Welwyn Garden City AL8 7SE
Received 25 Mar 202413 Sherrardspark Road, Welwyn Garden City, AL8 7JW
Received 17 Sept 201348 ATTIMORE ROAD, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 6LP
Received 29 Jan 2010144 Howlands Welwyn Garden City AL7 4RG
Received 21 Aug 20183 Broom Hill Welwyn AL6 0SF
Received 11 Jul 201844 Longcroft Lane Welwyn Garden City AL8 6EF
Received 6 Aug 20203 Mill Green Cottages Mill Green Bush Hall Lane Hatfield AL9 5PB
Received 21 Aug 202065 Handside Lane Welwyn Garden City AL8 6SH
Received 15 Apr 202657 Thistle Grove Welwyn Garden City AL7 4AF
Received 10 Nov 201796 Birchwood Avenue Hatfield AL10 0PS
Received 26 Mar 20261 Northaw Place Coopers Lane Northaw Potters Bar EN6 4NQ
Received 24 Jul 202454 Lowerfield Welwyn Garden City AL7 3JT
Received 14 Oct 202424 High Oaks Road Welwyn Garden City AL8 7BH
Received 6 Oct 202030 Attimore Road Welwyn Garden City AL8 6LP
Received 17 Jan 2006Danewood, Woodside Lane, HATFIELD, AL9 6DE
Received 17 Apr 201379-141 HERONSWOOD ROAD, WELWYN GARDEN CITY, HERTFORDSHIRE
Received 21 Jul 200432 Huggins Lane, Welham Green, HATFIELD, AL9 7LE
Received 21 Feb 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.
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