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29,002 approved · 4,819 refused · 2,219 withdrawn.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: 8 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 Counts reflect the last collected status; some records may be out of date.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.
37 Codicote Road Welwyn AL6 9TT
Received 9 May 202287 Bradshaws Hatfield AL10 9QW
Received 28 Jul 2020Hitchins Yard, West End Lane, Essendon, Hatfield, AL9 6AT
Received 27 Aug 20132 Wendover Drive Welwyn AL6 9LT
Received 5 May 201638 Holwell Road, Welwyn Garden City, AL7 3RQ
Received 16 Dec 20151A Rosecroft Lane Welwyn AL6 0UB
Received 7 Mar 2006Bell Bar Pet Farm, Bell Lane, Brookmans Park, Hatfield, AL9 7AY
Received 12 May 20144 Bramble Road Hatfield AL10 9SA
Received 17 Jul 202010 Graysfield Welwyn Garden City AL7 4BL
Received 17 Jan 201722 Bracken Lane Welwyn AL6 0RB
Received 4 Jun 20073 Pennyfathers Lane Welwyn AL6 0EN
Received 4 Sept 202315 LEMSFORD VILLAGE, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7TN
Received 4 Nov 200932 STIRLING WAY, WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 2QA
Received 20 Oct 200838 Reynards Road Welwyn AL6 9TP
Received 17 Dec 2008Ponsbourne Farm The Drive Newgate Street Hertford SG13 8QS
Received 3 Mar 2016Units 1 1a and 3 Swallow End Welwyn Garden City AL7 1JA
Received 24 Jun 20221 Reynards Road Welwyn AL6 9TR
Received 21 Jan 202143 Wheatley Close Welwyn Garden City AL7 3LJ
Received 9 Oct 2023Royal Veterinary College, Hawkshead Lane, North Mymms, Hatfield, AL9 7TA
Received 21 Nov 20131 Reynards Road Welwyn AL6 9TR
Received 21 Feb 200836 Rowans Welwyn Garden City AL7 1NY
Received 8 Dec 20058A Holloways Lane Welham Green Hatfield AL9 7NP
Received 21 Nov 2018Affinity Water, Tamblin Way, Hatfield, AL10 9EZ
Received 13 Dec 201331 Digswell Road Welwyn Garden City AL8 7PB
Received 21 Jul 2025Records 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