The Greater Good Design | Build, LLC

The Greater Good Design | Build is an Andover-based general contractor built around sustainable construction — accessory dwelling units and full building conversions using deconstruction instead of demolition, off-site pre-built panels, recycled ICCF materials, on-site rainwater and greywater management, and native landscaping. Its Massachusetts home improvement contractor registration is active, verified under the company name. Founder and CEO Tiffaney Ross describes herself as a licensed construction supervisor with a class B commercial driver's license and a 2B hoisting engineer credential, with a background in social and human services and commercial carpentry; she says she has studied sustainable building design with the USGBC, Earthship Biotecture, ARCSA, the Greywater Alliance and The Living Future Institute. The company says its leadership and advisory board carry a combined 140+ years in business management and field operations, with named roles including a COO/superintendent with a Master's in Construction Management from Wentworth, a CFO with an MBA and MS in Finance from Northeastern, a P.E. structural engineer, and a diversity, equity and inclusion specialist. It's a fit for homeowners specifically weighing an ADU or a sustainable, materials-conscious build rather than a standard renovation.