AUCTION | Bids Due June 1, 2026. 135 Folly Mill Road is a 24,225 SF professional building that has been the headquarters location for Superior Controls and E-Tech Group since 2009. Renovated in 2009, the building features three stories with a walk-out lower level, ADA accessibility, an elevator, and abundant on-site parking. Zoned ZONE-2R, the property provides flexibility for various uses, and its strategic location offers convenient access to the thriving business landscapes of Boston and Southern New Hampshire. 135 Folly Mill Road also features a solar arraythat generates up to $15,000/year in energy savings for the property.