No. The residences just north of Minffordd will remain. They are actually nearer to the station than the present top points. No property is being demolished for the bypass, which is a great relief to the FR's Commercial Manager, who owns one of the Minffordd houses with her husband! She will, however, lose a corner of her driveway to the roundabout being constructed at the end of the bypass on the Boston Lodge - Penrhyndeudraeth road.
The Garratts won't fit any higher up the FR than Boston Lodge - they are 7 feet wide over the cylinders, but there are places on the FR where the formation is only 6'11" between stone walls... The Garratts are also far too tall to go through Rhiw Plas bridge, just above Boston Lodge. 12 car trains on the FR are hauled by the double Fairlies - sometimes double-headed with one of the smaller engines if they are coal-burners and the weather is dry (this is to mitigate spark throwing by avoiding the need for locomotives to work at full throttle)