River City Boston: ADU Contractor and Home Addition Services
River City Construction is a Boston-based contractor specializing in home additions and accessory dwelling units (ADUs). They manage projects from initial design through permitting and final construction, offering homeowners a single point of contact throughout the entire process.
For homeowners looking to expand their property's usable space, River City Boston provides a range of solutions. Whether the goal is to add a detached backyard cottage, convert an underused garage, or build an attached expansion, the company handles the full scope of work.
What River City Boston Builds
As an ADU builder and general addition contractor, River City Construction works on several types of projects:
- Detached ADUs — backyard cottages, guest houses, and standalone accessory dwelling units
- Attached additions — second-floor additions, bump-outs, and ground-floor extensions
- Conversions — garage conversion contractor work, basement conversions, and attic-to-livable-space projects
- In-law suite and granny flat builds — private, self-contained spaces for family members or guests
These spaces can serve a variety of purposes, including multigenerational living, rental income, home offices, or simply additional room for a growing family.
Their services cover the full project lifecycle:
- Custom design and floor plans tailored to the property and homeowner's needs
- Full permitting management — including local zoning, code compliance, and building permits
- Complete construction: framing, electrical, plumbing, insulation, and finishes
- Interior fit-out including kitchens, bathrooms, flooring, cabinetry, and fixtures
- Final walkthrough and quality assurance, with post-completion support available
Local Knowledge and Process
River City Construction has been serving Boston and surrounding towns for a number of years. Their familiarity with local building codes, zoning regulations, and neighborhood-specific requirements is a practical advantage for homeowners navigating the permitting process.
The company positions itself as a start-to-finish ADU contractor, meaning homeowners do not need to coordinate separately between designers, permit expediters, and builders. River City handles each phase internally.
Their process follows a structured sequence:
- Initial consultation and assessment — reviewing the property, discussing goals, and evaluating zoning feasibility
- Design and planning — developing floor plans suited to the site and homeowner preferences
- Permits and approvals — managing all submissions and coordinating with city inspectors
- Construction — overseeing all trades from demolition through finishing
- Final walkthrough — inspecting completed work with the homeowner
- Post-completion support — remaining available for follow-up after the project is done
For homeowners considering an accessory dwelling unit builder in the Boston area, River City Construction offers a practical, locally experienced option. Their scope covers detached ADU builds, in-law suite construction, garage conversions, and attached home additions — all managed under one contractor relationship.
