if i remember correctly, i think the box mentioned that it was H scale? which based on my skills at Google-Fu mentions that it's somewhere around the train-set equivalent of 1/35? probably very wrong. i'll check it out and respond momentarily.

wow i was way off. according to the site, it's 1/87th scale

http://www.round2models.com/models/polar-lights/psycho-bates-mansion