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
28,849 approved · 4,801 refused · 2,206 withdrawn. Received dates in our records: 29 Apr 1948 to 26 Oct 2026. Most recent record check: 30 Oct 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 Counts reflect the last collected status; some records may be out of date.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.
43 Windsor Road Welwyn AL6 9JY
Received 17 Mar 20226 Brockett Close Welwyn Garden City AL8 7BN
Received 2 Sept 20205 Oak Piece Welwyn AL6 0XE
Received 19 Dec 201727 Rooks Hill Welwyn Garden City AL8 6EU
Received 11 Jul 2023152 DIXONS HILL ROAD, WELHAM GREEN, HATFIELD, HERTS, AL9 7DN
Received 24 Oct 2007Dellcott Tennis Club Dellcott Close/Dognell Green Welwyn Garden City AL8 7BL
Received 19 Dec 201920 Black Fan Road Welwyn Garden City AL7 1QA
Received 22 Dec 2017154 Parkway Welwyn Garden City AL8 6HZ
Received 6 Jun 2023Gate House Fretherne Road Welwyn Garden City AL8 6NS
Received 24 Oct 2016Great Nast Hyde House Wilkins Green Lane Hatfield AL10 9RB
Received 23 Aug 200453 Broad Acres Hatfield AL10 9LE
Received 22 Jul 2015LAND ADJACENT TO BIRDCROFT ROAD, WELWYN GARDEN CITY, HERTFORDSHIRE
Received 9 Oct 200824 Marsden Road Welwyn Garden City AL8 6XZ
Received 5 Dec 2022Lakeside School Lemsford Lane Welwyn Garden City AL8 6YN
Received 2 Nov 200516 Hunsdon Welwyn Garden City AL7 2PN
Received 12 Jul 201345 Codicote Road Welwyn AL6 9TT
Received 13 Jan 20217 Densley Close Welwyn Garden City AL8 7JX
Received 30 Apr 19484 Middlefield, Welwyn Garden City, AL7 4DJ
Received 16 Aug 2013Woodfield Woodfield Lane Brookmans Park Hatfield AL9 6JJ
Received 15 Jun 201510 Brockett Close Welwyn Garden City AL8 7BN
Received 28 Feb 200652 Thistle Grove Welwyn Garden City AL7 4AN
Received 20 Nov 201723 Boxfield Welwyn Garden City AL7 4PT
Received 9 Feb 20242 Thumbswood Welwyn Garden City AL7 4QE
Received 6 Jun 2023ASDA SUPERSTORE, 98 TOWN CENTRE, HATFIELD, HERTFORDSHIRE, AL10 0JW
Received 17 Jun 2008Records 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