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
28,313 approved · 4,721 refused · 2,164 withdrawn. Received dates in our records: 29 Apr 1948 to 21 Oct 2026. Most recent record check: 27 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 Counts reflect the last collected status; some records may be out of date.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.
Plot 6000, Land adjacent to the Porsche Garage Hatfield Hatfield Business Park AL10 9UA
Received 3 Nov 20214 Firway Close Welwyn AL6 0RE
Received 24 Feb 2010Camleigh Farm Cucumber Lane Essendon Hatfield AL9 6JB
Received 4 Oct 20177 Hanyards Lane Cuffley Potters Bar EN6 4AS
Received 6 Sept 201925 BLAKEMERE ROAD, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7PQ
Received 23 Aug 200845 Fordwich Road Welwyn Garden City AL8 6EY
Received 25 Aug 202141 Elmwood Welwyn Garden City AL8 6LD
Received 12 Jul 201914 Hyde Valley, Welwyn Garden City, AL7 4NA
Received 27 Sept 200730 Guessens Road Welwyn Garden City AL8 6RA
Received 16 Oct 2023Land R/O, 25 Bullens Green Lane, COLNEY HEATH, ST ALBANS, HERTS, AL4 0QR
Received 4 Dec 200913 Brockswood Lane Welwyn Garden City AL8 7BA
Received 19 Sept 201715 High Oaks Road Welwyn Garden City AL8 7BJ
Received 3 Jun 2025Land rear of 36 Clarkes Road Hatfield AL10 0HL
Received 20 Jul 2008Cavendish Place Aldykes Hatfield AL10 8FD
Received 11 Apr 202330 St Albans Road East Hatfield AL10 0EH
Received 18 Feb 202557 Valley Road, Welwyn Garden City, AL8 7DH
Received 30 May 201317-19 Howardsgate Welwyn Garden City AL8 6HA
Received 9 May 201822 Hawkshead Lane Hatfield AL9 7TB
Received 3 Feb 202145 Codicote Road Welwyn AL6 9TT
Received 12 Mar 20217 Handside Close Welwyn Garden City AL8 6SR
Received 18 Jun 202134 Fordwich Road Welwyn Garden City AL8 6EY
Received 7 May 202431 Newfields, Welwyn Garden City, AL8 6YS
Received 23 Feb 20153 Roundwood Drive Welwyn Garden City AL8 7JZ
Received 11 Apr 20243 Hitherway Welwyn Garden City AL8 7RG
Received 2 Mar 2021Records 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