Prefab homes go upscale, with prices to match

Homes like this one in Wellesley are putting an end to the idea that prefabs are boxy, cheaply made structures. By Robert Preer | GLOBE CORRESPONDENT JULY 06, 2012 WELLESLEY — The new $2 million Colonial near Wellesley Center comes with plenty of the features considered standard in this high-end community. A grand foyer opens…