According to
chapter 2 of the Environmental Statement, page 45, the only building to be demolished in the area is Thornhill House, which is apparently
this building. It seems to have previously been industrial and a care home, and will fall within the earthworks.
So perhaps the houses to be demolished are ones which were expected to survive when the ES was written. Could they be
this row of four houses on Brooks Yard, off Fall Lane near the junction of Thornhill Road? (You can rotate right and see the railway.)
From Ravensthorpe to Dewsbury the new rail alignment is to the right-hand side of the current one (as seen from a train going towards Leeds), except for a stretch of about 300 yards centred near the Thornhill Road underbridge, where the new line is to the left of the old, to straighten the alignment. The railway will go over Thornhill Road by a new bridge which will be in effect a westward extension of the existing one. The new bridge will be right over the present Thornhill Road/Fall Lane junction.
Fall Lane will have to be diverted to the west, taking it closer to the houses. I haven't seen a plan showing proposed road boundaries or kerblines, but there is a plan in the TWAO docs showing proposed road centre lines (see
this, sheet no. 25 (= page 29 in the pdf page numbering)). According to the ES (linked above), page 44, there will be a new retaining wall between the houses and the diverted Fall Lane, but perhaps they've now decided to demolish them instead.