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
Explore collected planning applications and decisions for Welwyn Hatfield Borough Council. Search an address, application reference or proposal to find a record.
16,035 approved · 2,629 refused · 1,181 withdrawn. Received dates in our records: 5 Jan 2005 to 2 Oct 2026. Most recent record check: 14 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 Counts reflect the last collected status; some records may be out of date.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.
Beecholme 54 Codicote Road Welwyn AL6 9UJ
Received 23 Nov 2020Royal Veterinary College Hawkshead Lane North Mymms AL9 7TA
Received 18 Dec 202426 Pine Grove Brookmans Park Hatfield AL9 7BS
Received 30 Dec 2019103 Crawford Road Hatfield AL10 0PF
Received 13 Oct 2017116 Howlands Welwyn Garden City AL7 4RG
Received 12 Sept 201827 Lemsford Village Lemsford Welwyn Garden City AL8 7TN
Received 19 May 20255 Rectory Close Essendon Hatfield AL9 6HG
Received 14 May 202026 Beehive Green, Welwyn Garden City, AL7 4BG
Received 12 Sept 20239 Graysfield Welwyn Garden City AL7 4BL
Received 31 Jul 202541-43 Town Centre Hatfield AL10 0JJ
Received 14 Feb 201867 Digswell Rise Welwyn Garden City AL8 7PT
Received 21 Feb 2022Plot 6000 Land adjacent to Porsche Garage Hatfield Avenue Hatfield Business Park Hatfield AL10 9UA
Received 20 Mar 201710 Lytton Gardens Welwyn Garden City AL8 6EG
Received 13 Dec 20173 Attimore Road Welwyn Garden City AL8 6LH
Received 10 Feb 2022Link Drive Car Park Link Drive Hatfield AL10 8TY
Received 4 Oct 20225 Wellington Drive Welwyn Garden City AL7 2NL
Received 9 Apr 201821 Springfields Welwyn Garden City AL8 6XS
Received 28 Aug 2025104 Parkway Welwyn Garden City AL8 6HL
Received 25 Sept 20189 Halifax Way Welwyn Garden City AL7 2QH
Received 18 Apr 2019124 Harmer Green Lane Digswell Welwyn AL6 0ET
Received 10 Oct 202322 Gwynfa Close Welwyn AL6 0PR
Received 7 Aug 2018131-141 Longcroft Lane Welwyn Garden City AL8 6EL
Received 8 Jul 202016 Wolves Mere Woolmer Green SG3 6JW
Received 24 Jan 202311 Churchill Crescent Welham Green Hatfield AL9 7DQ
Received 19 Apr 2023Records are ordered by application ID, not submission date. Use search to find a particular address or proposal.
View all applicationsStart 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