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
28,962 approved · 4,815 refused · 2,217 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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.
15 Heathcote Avenue Hatfield AL10 0RQ
Received 20 Oct 202043 The Grove Hatfield AL9 7RL
Received 13 Nov 202076 The Vineyard, Welwyn Garden City, AL8 7PU
Received 1 May 201427 Bridge Road Woolmer Green Knebworth SG3 6JL
Received 17 Jul 2018127 Moffats Lane, Brookmans Park, Hatfield, AL9 7RP
Received 16 Jul 201381 Sylvandale, Welwyn Garden City, AL7 2HT
Received 21 Jul 2014Magellan House 5 Bessemer Road Welwyn Garden City AL7 1GF
Received 15 Jul 2021257 Handside Lane Welwyn Garden City AL8 6TF
Received 3 May 201825 Stirling Way Welwyn Garden City AL7 2QA
Received 11 Aug 2015Harepark House Bibbs Hall Lane Welwyn AL6 9BY
Received 10 Mar 20204 The Downs Hatfield Hertfordshire AL10 8JP
Received 12 Apr 2022ASDA, 98 TOWN CENTRE, HATFIELD, HERTFORDSHIRE, AL100JP
Received 6 Oct 200565 Mill Green Road, Welwyn Garden City, AL7 3UX
Received 1 Dec 20155 Minster Close, HATFIELD, AL10 9JN
Received 15 May 2013BOVIS DEVLOPMENT, SALISBURY VILLAGE, COMET WAY, HATFIELD, HERTFORDSHIRE, AL10 0YA
Received 2 Dec 20092 Spindleberry Close Oaklands Welwyn AL6 0SJ
Received 1 Dec 2014133 The Ridgeway Cuffley Potters Bar EN6 4BG
Received 19 Jan 20222 Holwell Road Welwyn Garden City AL7 3RB
Received 25 Jul 2012Burnham Wood Cottage 102 Harmer Green Lane Digswell Welwyn AL6 0ES
Received 16 Aug 2019OAK COTTAGE CARE HOME, 4 WILKINS GREEN LANE, HATFIELD, HERTFORDSHIRE, AL10 9RT
Received 19 Dec 200775 Pine Grove Hatfield AL9 7BL
Received 27 May 202233 The Meadway Cuffley Potters Bar EN6 4ET
Received 29 Jun 202157 VALLEY ROAD, WELWYN GARDEN CITY, HERTS, AL8 7DH
Received 24 Sept 200927 BRADMORE GREEN, BROOKMANS PARK, HATFIELD, HERTFORDSHIRE, AL9 7QR
Received 23 Jul 2009Records 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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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