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28,972 approved · 4,816 refused · 2,217 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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.
121 Moffats Lane Hatfield AL9 7RP
Received 9 Jul 202036 Thornton Road Little Heath Potters Bar EN6 1JH
Received 24 Nov 2025314 Knightsfield, Welwyn Garden City, AL8 7NQ
Received 27 Aug 201379 Mill Green Road Welwyn Garden City AL7 3UX
Received 4 May 202319 Marlborough Close Welwyn AL6 0UG
Received 13 May 2004Green Brow, Waterend Lane, Ayot St Peter, Welwyn, AL6 9BB
Received 28 Aug 20155 Salisbury Road Welwyn Garden City AL7 3RR
Received 17 Feb 20208 Roundwood Drive, Welwyn Garden City, AL8 7JZ
Received 28 Jul 20166 Dognell Green Welwyn Garden City AL8 7BL
Received 8 Dec 202533 Church Lane Northaw Potters Bar EN6 4NX
Received 1 Sept 202126 The Gardens Brookmans Park Hatfield AL9 7UL
Received 11 Feb 2019110 Sloansway, Welwyn Garden City, AL7 1ND
Received 12 Jun 20094 PLOUGHMANS END, WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 2JG
Received 24 Nov 200829 Cypress Avenue Welwyn Garden City AL7 1HN
Received 9 Apr 20192 Waterworks Cottages Northaw Road East Cuffley Potters Bar EN6 4RB
Received 24 Jan 202090 Pine Grove Brookmans Park Hatfield AL9 7BW
Received 25 May 20074 Blackthorn Road, Welwyn Garden City, AL7 3JS
Received 4 Oct 200431 Digswell Road Welwyn Garden City AL8 7PB
Received 16 Jan 201969 Brookside Crescent, Cuffley, POTTERS BAR, EN6 4QP
Received 22 Jan 201341 Bridge Road Welwyn Garden City AL8 6UG
Received 6 Apr 20217A Hall Grove Welwyn Garden City AL7 4PJ
Received 21 May 200419 Digswell Park Road, Welwyn Garden City, AL8 7NW
Received 28 Mar 20145 Ashley Closev Welwyn Garden City Hertfordshire AL8 7LH
Received 15 Sept 2022Fernhurst 77B Tolmers Road Cuffley Potters Bar EN6 4JJ
Received 12 Jan 2017Records 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