Modern ADU Living
Guest houses and multi-generational suites.
Modern ADU Living, designed and built as one.
Sophisticated guest houses, in-law suites, and multi-generational living. Architecturally matched and built for flexibility.
ADU design and build
Multi-generational suites
Kitchenettes
Accessible, aging-in-place design
Permitting guidance
Aging-in-place luxury with smart climate and access.
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Service Areas
Capstone plans additions, ADUs, and garage conversions across Greater Boston and Norfolk County, including Foxborough, Wellesley, Newton, Needham, Weston, Brookline, Dover, Medfield, Westwood, Walpole, Sharon, Mansfield, Wrentham, Norfolk, Plainville. We bring the same design-build discipline—clear scope, transparent planning, and refined finish quality—to every community we serve.
See it built.
Browse real ADU and guest-house transformations across Boston's western suburbs.
Explore an ADU.
Book a private design consultation. We'll explore your goals, your home, and what's possible.
Schedule a Design Consultation →Typically a 45-minute conversation. No pressure, no obligation.