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
28,972 approved · 4,816 refused · 2,217 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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.
Sir Frederic Osborn School, Herns Lane, Welwyn Garden City, AL7 2AF
Received 4 Jun 20151 Church Cottages Bibbs Hall Lane Welwyn AL6 9BZ
Received 14 Oct 20206 Peace Grove Welwyn AL6 0RS
Received 26 Feb 20256 Well Garth Welwyn Garden City AL7 3AF
Received 18 Mar 2021Royal Veterinary College Hawkshead Lane Hatfield AL9 7TA
Received 14 Feb 202051 Blythway Welwyn Garden City AL7 1DL
Received 23 Oct 202448 Furzefield Road, Welwyn Garden City, AL7 3RJ
Received 5 May 2023Accord House 28 Bridge Road East Welwyn Garden City AL7 1HX
Received 19 Oct 201745 Sherrardspark Road Welwyn Garden City AL8 7LD
Received 30 May 20228 The Limberlost Welwyn Hertfordshire AL6 9TS
Received 29 Mar 2023St Marys Church Church Street Welwyn AL6 9LX
Received 10 Jun 2019Oshwal Association of the UK, Oshwal Centre, Coopers Lane Road, Northaw, POTTERS BAR, EN6 4DG
Received 29 Nov 201222 Hawkshead Lane Hatfield AL9 7TB
Received 9 Aug 2021Stonehills House Stonehills Welwyn AL8 6NH
Received 16 Apr 201812 Brocket Road Welwyn Garden City AL8 7TY
Received 25 Apr 2025ROYAL VETERINARY COLLEGE, HAWKSHEAD HOUSE, HAWKSHEAD LANE, NORTH MYMMS, HATFIELD, HERTFORDSHIRE, AL9 7TA
Received 10 Feb 2010Green Brow Waterend Lane Ayot St Peter Welwyn AL6 9BB
Received 17 May 200726 Lemsford Village Welwyn Garden City AL8 7TN
Received 20 Feb 2006147 Boundary Lane, Welwyn Garden City, AL7 4EQ
Received 24 Oct 20148 Vine Close Welwyn Garden City AL8 7PS
Received 25 Feb 20195 Market Place Hatfield AL10 0LJ
Received 13 Jan 202528 Thistle Drive Hatfield Hertfordshire AL10 9FQ
Received 8 Mar 20226 Hillside Welwyn Garden City AL7 4PZ
Received 14 May 2018Hill House Waterend Lane Ayot St Peter Welwyn AL6 9BB
Received 1 Apr 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