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
28,970 approved · 4,816 refused · 2,217 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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.
36 Mymms Drive, Brookmans Park, Hatfield, AL9 7AF
Received 19 Aug 201431 Parkside Welwyn AL6 9DQ
Received 13 Feb 2014Tesco Stores Ltd Great North Road Hatfield AL9 5JY
Received 14 Dec 2009THE OLD MAYPOLE P.H, WARRENGATE ROAD, NORTH MYMMS, HATFIELD, HERTFORDSHIRE
Received 7 Dec 200528 Brookmans Avenue Brookmans Park Hatfield AL9 7QJ
Received 4 Jul 2019109 Wellfield Road Hatfield AL10 0BY
Received 7 Mar 201881 Howlands, Welwyn Garden City, AL7 4RA
Received 11 Sept 201510 Hill Ley Hatfield Hertfordshire AL10 8LX
Received 20 Jun 202223 Pentley Park Welwyn Garden City AL8 7RT
Received 31 Mar 2025The Hope And Anchor 2 Station Road Welham Green Hatfield AL9 7PJ
Received 27 Feb 200925 Russellcroft Road, Welwyn Garden City, AL8 6QX
Received 22 Oct 201560 Sweet Briar Welwyn Garden City AL7 3DY
Received 29 Jan 202437 Bradgate Cuffley Potters Bar EN6 4RN
Received 4 Nov 2025Land to the rear of 62 Town centre, Hatfield
Received 7 Mar 20161 Tolmers Mews Newgate Street Hertford SG13 8RG
Received 26 Mar 201440 Burrowfield, Welwyn Garden City, AL7 4SR
Received 10 Oct 19888 The Limberlost Welwyn AL6 9TS
Received 2 Feb 200929 Broadwater Road Welwyn Garden City AL7 3BQ
Received 3 Oct 202416 Crossway Welwyn Garden City AL8 7EE
Received 22 Mar 2023103 LONGCROFT LANE, WELWYN GARDEN CITY, HERTS, AL8 6EL
Received 9 Oct 200711 Westcott Welwyn Garden City AL7 2PP
Received 11 Feb 202528 Sutherland Avenue, Cuffley, Potters Bar, EN6 4EQ
Received 8 May 201439 St Albans Road East Hatfield AL10 0EJ
Received 28 Sept 20045 New Road Woolmer Green Knebworth SG3 6JX
Received 22 Jun 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.

Understanding planning · 13 min read
Read planning drawings, floor plans, elevations and sections. Use labelled diagrams, a drawing comparison table and revision checks to understand a proposal.

Property research · 13 min read
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