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29,002 approved · 4,819 refused · 2,219 withdrawn.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: 10 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 Counts reflect the last collected status; some records may be out of date.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.
21 Valley Road Welwyn Garden City AL8 7DH
Received 14 Oct 20255 Mymms Drive Brookmans Park AL9 7AE
Received 13 Mar 202312 Rosecroft Lane Welwyn AL6 0UB
Received 22 Aug 2007Fountain House, 1-7 Howardsgate, Welwyn Garden City, AL8 6AL
Received 17 Oct 201629 Broadwater Road Welwyn Garden City AL7 3BQ
Received 23 Apr 20241 Burleigh Mead Hatfield AL9 5ED
Received 2 Mar 202256 Bell Lane Brookmans Park AL9 7AY
Received 5 Aug 2025101 Handside Lane Welwyn Garden City AL8 6SP
Received 13 Jul 2017199 Heronswood Road, Welwyn Garden City, AL7 3JH
Received 14 May 201470 The Meadway Cuffley Potters Bar EN6 4ES
Received 11 Nov 2024405 St Albans Road West Hatfield AL10 9RU
Received 19 May 200652 PEPLINS WAY, BROOKMANS PARK, HATFIELD, HERTFORDSHIRE, AL9 7UU
Received 28 Jul 200911 The Valley Green Welwyn Garden City AL8 7DQ
Received 7 Mar 201935 Codicote Road Welwyn AL6 9TT
Received 29 Jan 202410 Tomsfield Hatfield AL10 9TB
Received 23 Jul 20208 Pine Grove Brookmans Park Hatfield AL9 7BS
Received 31 Jan 2019Welwyn Power Land on the west side of Tewin Road Welwyn Garden City AL7 1BH
Received 24 May 202280 Knightsfield, Welwyn Garden City, AL8 7HB
Received 7 Jun 20074 WILKINS GREEN LANE, HATFIELD, HERTFORDSHIRE, AL10 9RT
Received 23 Sept 200833 Thistle Grove Welwyn Garden City AL7 4AD
Received 8 Nov 2022Land rear of, 315 St Albans Road West, Hatfield, AL10 9RJ
Received 1 Jul 201439 London Road Woolmer Green Knebworth SG3 6JE
Received 13 Jan 20105 BURLEIGH WAY, CUFFLEY, POTTERS BAR, HERTFORDSHIRE, EN6 4LJ
Received 8 Jul 2008Ponsbourne Grange Ponsbourne Park Newgate Street Hertford SG13 8QS
Received 26 Mar 2020Records 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