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
28,934 approved · 4,812 refused · 2,213 withdrawn. Received dates in our records: 29 Apr 1948 to 29 Oct 2026. Most recent record check: 6 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 Counts reflect the last collected status; some records may be out of date.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.
10 Frampton Road Little Heath Potters Bar EN6 1JE
Received 20 Jan 2025115 Tolmers Road Cuffley Potters Bar EN6 4JL
Received 21 Aug 2024169 Boundary Lane Welwyn Garden City AL7 4EQ
Received 1 Oct 200462B Bridge Road East, Welwyn Garden City, AL7 1JU
Received 11 Jul 201355 Briars Wood Hatfield AL10 8DH
Received 19 Mar 2015332 Knightsfield Welwyn Garden City AL8 7NQ
Received 9 Jul 202536 Hawbush Rise Welwyn AL6 9PP
Received 30 Jun 2017Unit D 51 Fretherne Road, Welwyn Garden City, AL8 6PZ
Received 9 Sept 2013Westly Wood Depot Westly Wood
Received 13 Jan 200473 Thistle Grove Welwyn Garden City AL7 4AG
Received 11 May 202036 Coltsfoot Welwyn Garden City, AL7 3HZ
Received 20 Apr 20228 Mardley Heights Welwyn AL6 0TX
Received 8 Oct 202416 Danesbury Park Road Welwyn AL6 9SJ
Received 7 Sept 2009Land adjacent to 12 Batterdale Hatfield AL9 5JF
Received 27 Nov 2014York House 4 Wigmores South Welwyn Garden City AL8 6PL
Received 10 Jun 20242 The Pastures Welwyn Garden City AL7 4PX
Received 12 Aug 2022Nyn Park, Well Road, Northaw, POTTERS BAR, EN6 4BS
Received 4 Feb 20135 Pitsfield Welwyn Garden City AL8 7SJ
Received 31 Mar 20203 Holly Hall Court Church Street Welwyn AL6 9LH
Received 22 Oct 200828 Turmore Dale Welwyn Garden City AL8 6HS
Received 8 Dec 2020SIR FREDERIC OSBORN SCHOOL, HERNS LANE, WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 2AF
Received 4 Apr 200824 Ayot Green Ayot St Peter Welwyn AL6 9AB
Received 16 Sept 20048 Furzefield Road, Welwyn Garden City, AL7 3RH
Received 22 Jan 200441 ATTIMORE ROAD, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 6LG
Received 1 Feb 2010Records 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