The latest plans for the former Shredded Wheat factory site will cram nearly twice the number of units that were first proposed onto the site, and has been recommended for approval.
A signalling fault is causing disruption for Stevenage and Potters Bar commuters this evening.
Train services between Welwyn Garden City and London's Finsbury Park may be cancelled or delayed following an "operating incident".
Trains on the Great Northern route have been delayed and may even be cancelled following reports of trespassers at Potters Bar.
Trespassers caused serious disruption for Great Northern train services through Welwyn Garden City (WGC) and Stevenage this evening.
The rail regulator has opened an investigation into whether Great Northern and Thameslink line operator Govia Thameslink breached requirements to keep passengers properly informed amid the May 2018 timetable rollout.
An inquiry into the chaos that ensued following the introduction of Govia Thameslink Railway's May timetable has revealed "an apparent gap in industry responsibility and accountability".