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
28,972 approved · 4,816 refused · 2,217 withdrawn. Received dates in our records: 29 Apr 1948 to 29 Oct 2026. Most recent record check: 7 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 Counts reflect the last collected status; some records may be out of date.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.
30 WESTLAND DRIVE, BROOKMANS PARK, HERTFORDSHIRE, AL9 7UQ
Received 28 Feb 2008Hill End House, Hill End, Hertford Road, Hatfield, AL9 5PQ
Received 20 Dec 2019Land at Bishops Square, Mosquito Way, Hatfield, AL10 9AZ
Received 10 Dec 201375 The Ridgeway Cuffley Potters Bar EN6 4BD
Received 22 Mar 202461 Moorlands, Welwyn Garden City, AL7 4QJ
Received 7 Jan 201631 Reddings Welwyn Garden City AL8 7LA
Received 2 May 201840 Dixons Hill Close Welham Green Hatfield AL9 7DR
Received 17 Jun 2015Hatfield Swim Centre Lemsford Road Hatfield AL10 0RU
Received 7 Aug 2008Land off, Church Road to the east of Longcroft Lane, Welwyn Garden City, AL8 6EB
Received 1 Jan 19882 Willow Walk Welwyn AL6 9SQ
Received 25 Sept 2008SAINSBURYS SUPERMARKET (40-44 CHURCH ROAD), 24-38 CHURCH ROAD, 10-16 WIGMORES SOUTH, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 6PS
Received 24 Nov 20088 Bluebridge Road Brookmans Park AL9 7SB
Received 21 May 20211 Reynards Road, Welwyn, AL6 9TR
Received 29 Sept 201713 Lodge Drive Hatfield AL9 5HL
Received 31 Jan 2006YMCA 90 Peartree Lane Welwyn Garden City AL7 3UL
Received 21 Dec 2022Entech House, London Road, Woolmer Green, SG3 6JE
Received 30 Jul 202057 Woodhall Lane, Welwyn Garden City, AL7 3TG
Received 6 Oct 201521A Canonsfield Welwyn AL6 0QB
Received 31 Aug 2022189 Boundary Lane Welwyn Garden City AL7 4EJ
Received 28 Sept 20175 Reddings Welwyn Garden City AL8 7LA
Received 19 Sept 20166 High Oaks Road Welwyn Garden City AL8 7BH
Received 14 Nov 201640 Hawbush Rise Welwyn AL6 9PP
Received 15 Jul 201321 Great North Road Brookmans Park Hatfield AL9 6LB
Received 18 Jul 2014FOREST HILLS, NEWGATE STREET VILLAGE, HERTFORD, HERTFORDSHIRE, SG13 8RA
Received 11 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