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29,002 approved · 4,819 refused · 2,219 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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.
Former Stable Yard Guessens 6 Codicote Road Welwyn AL6 9NB
Received 9 Apr 201369 Harmer Green Lane Digswell Welwyn AL6 0EH
Received 15 Jun 2007Park Farm Equestrian Centre, Northaw Road West, Northaw, Potters Bar, EN6 4NT
Received 14 Jan 20141 Palmerston Close, Welwyn Garden City, AL8 7DL
Received 6 Oct 2014Vertigo Adventures Stanborough Park North Stanborough Road Welwyn Garden City AL8 6DF
Received 8 May 2018Monks Walk School, Knightsfield, Welwyn Garden City, AL8 7NL
Received 1 May 2014The Beehive Beehive Lane Welwyn Garden City AL7 4BW
Received 13 Dec 2022Just House Coopers Lane Northaw Potters Bar EN6 4NJ
Received 18 Oct 201816 Langstone Ley Welwyn Garden City AL7 1FQ
Received 26 Jul 200761 Great North Road Welwyn Garden City AL8 7TL
Received 19 Oct 20044 Barleycroft Road Welwyn Garden City AL8 6JU
Received 2 Sept 2025228 Knightsfield Welwyn Garden City AL8 7RB
Received 6 Sept 2024Old Maypole House 43 Warrengate Road North Mymms Hatfield AL9 7TT
Received 9 Apr 20258 Mannicotts Welwyn Garden City AL8 7BW
Received 21 Aug 202599 Sloansway, Welwyn Garden City, AL7 1NA
Received 17 Mar 2015134 Brookside Crescent Cuffley Potters Bar EN6 4QL
Received 17 Nov 200851 Homestead Road Hatfield AL10 0QN
Received 17 Jun 201515 Church Street Welwyn AL6 9LN
Received 6 Dec 200540 Reynards Road Welwyn AL6 9TP
Received 6 May 20264 Langstone Ley, Welwyn Garden City, AL7 1FQ
Received 15 Jan 201487 Brookside Crescent Cuffley Potters Bar EN6 4QP
Received 18 Nov 202014 Danesbury Park Road Welwyn AL6 9SJ
Received 28 Oct 202453 BLAKEMERE ROAD, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7PQ
Received 8 Jun 2009The Old Cottage 10 Hawkshead Lane North Mymms Hatfield AL9 7TB
Received 21 Feb 2018Records 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.

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