Markets Served
Residential, ADU, multifamily, repositioning, and commercial improvement work across Southern California.
Custom residential construction and renovation delivered with careful planning, field accountability, and respect for the home and surrounding neighborhood.
Property-specific feasibility, preconstruction, permitting coordination, and construction for accessory dwelling units and junior accessory dwelling units.
Construction and property repositioning coordinated around occupancy, owner objectives, repeatable scopes, budget control, and long-term asset value.
Tenant and owner improvements managed with clear scope, procurement, schedule, and reporting for an organized handoff.
Service Area
UnionStone evaluates projects across Central and Coastal San Diego, North County Coastal, North County Inland, East County, South Bay, and surrounding Southern California markets.
Project acceptance depends on scope, schedule, delivery method, and the resources required to execute the work correctly.
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