For a buyer choosing among current listings, missing energy information itself is actionable uncertainty. For measuring price effects, it is simply another incomplete variable.
The wording “buyers negotiate or move on” may be too binary. Some may view, investigate further and then pause because financing plus improvement costs no longer fit.
The vacancy point needs clearing up before it enters the valuation. If it only means the home may sit empty between closing and occupancy, that belongs in your personal holding-cost calculation. If vacancy has caused deferred maintenance, moisture concerns or insurance complications, it affects...