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
Explore collected planning applications and decisions for Welwyn Hatfield Borough Council. Search an address, application reference or proposal to find a record.
19,996 approved · 3,110 refused · 1,500 withdrawn. Received dates in our records: 1 Nov 1999 to 13 Oct 2026. Most recent record check: 17 Oct 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 Counts reflect the last collected status; some records may be out of date.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.
Home Farm 6 Whitehill Welwyn AL6 9AF
Received 6 May 20203 Dellcott Close, Welwyn Garden City, AL8 7BB
Received 23 Dec 2013Chancellors School, Pine Grove, Brookmans Park, Hatfield, AL9 7BN
Received 20 Jul 20205 Pine Crest Welwyn AL6 0EQ
Received 6 May 20266 Bishops Close Hatfield AL10 9PW
Received 28 Aug 2025127 Sweet Briar Welwyn Garden City AL7 3EB
Received 31 Jul 2024Northaw House Coopers Lane Northaw Potters Bar EN6 4NG
Received 21 Sept 202264 Parkway Welwyn Garden City AL8 6HH
Received 12 Jul 201919 Heather Road, Welwyn Garden City, AL8 6XX
Received 26 Nov 2015Howards Cottage 1 Digswell House Mews Monks Rise Welwyn Garden City AL8 7AT
Received 12 Feb 202195 Ludwick Way Welwyn Garden City AL7 3PL
Received 16 Sept 201928 Roe Green Lane Hatfield AL10 0RZ
Received 26 Aug 2020Skyfield Manor West End Lane Essendon Hatfield AL9 6AX
Received 12 May 202059 Tiger Moth Way Hatfield Hertfordshire AL10 9LT
Received 12 Jun 202349 Peartree Lane Welwyn Garden City AL7 3UA
Received 17 Dec 202044 Moorlands Welwyn Garden City AL7 4PP
Received 29 Jan 2019136 Longcroft Lane Welwyn Garden City AL8 6EN
Received 22 Mar 2021Manor Cottage Vineyards Road Northaw Potters Bar EN6 4PQ
Received 26 Apr 20232 Mannicotts, Welwyn Garden City, AL8 7BW
Received 11 Dec 20153 Ashley Close Welwyn Garden City AL8 7LH
Received 18 Dec 201760 Crawford Road Hatfield AL10 0PE
Received 12 Nov 202522 The Avenue Welwyn AL6 0PP
Received 3 Dec 20204 Ashley Close Welwyn Garden City AL8 7LH
Received 3 Oct 201730 Barleycroft Road Welwyn Garden City AL8 6JU
Received 13 Nov 2023Records are ordered by application ID, not submission date. Use search to find a particular address or proposal.
View all applicationsStart 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