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
29,006 approved · 4,820 refused · 2,220 withdrawn. Received dates in our records: 29 Apr 1948 to 3 Nov 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 Counts reflect the last collected status; some records may be out of date.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.
Hanover House Hyde Valley Welwyn Garden City AL7 4DA
Received 12 Sept 202544 Peartree Lane, Welwyn Garden City, AL7 3UD
Received 21 Feb 2014Holwell Hyde Cottage Holwell Hyde Lane Welwyn Garden City AL7 4AA
Received 29 Dec 202225 Autumn Grove Welwyn Garden City AL7 4DB
Received 28 Aug 2019Land off London Road Woolmer Green SG3 6JZ
Received 21 Dec 2023311 St Albans Road West Hatfield AL10 9RJ
Received 7 Feb 2017Land to North East of Welwyn Garden City Panshanger AL7 2QJ
Received 23 Jun 202514 Sherrardspark Road Welwyn Garden City Hertfordshire AL8 7JP
Received 27 Jun 2022HSBC Howardsgate Welwyn Garden City AL8 6BH
Received 20 Feb 202019 Woodland Rise Welwyn Garden City AL8 7LJ
Received 28 Oct 201918 and 20 Warren Close Hatfield AL10 0AL
Received 28 Nov 202333 The Ridgeway Cuffley Potters Bar EN6 4BB
Received 18 Nov 2004Easymix Concrete, 31 Burrowfield
Received 12 Aug 20084 Mardley Heights Welwyn AL6 0TX
Received 12 Jan 200938 Mount Way Welwyn Garden City AL7 4LB
Received 3 Sept 20206 Drycroft, Welwyn Garden City, AL7 4DH
Received 11 Apr 201410 Upland Drive Brookmans Park Hatfield AL9 6PS
Received 17 Sept 20043 Robin Way Cuffley Potters Bar EN6 4QB
Received 6 Jan 20062 Waterworks Cottages Northaw Road East Cuffley Potters Bar EN6 4RB
Received 28 Feb 202029 Briars Wood Hatfield AL10 8DA
Received 23 Jun 202512 Willow Grove Welwyn Garden City AL8 7NA
Received 16 Jun 2021Mill Green Sewage Treatment, Hertford Road, Hatfield, AL9 5PE
Received 2 Jun 201537 Flexley Wood, Welwyn Garden City, AL7 1NT
Received 13 May 2015126 Holwell Road Welwyn Garden City AL7 3RW
Received 9 Apr 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