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Three words come to mind to describe Trinity Devco Inc.: Design / Builder / Owner.  You see we at Trinity strive to partner with our customers.  Whether contracted as Design Build Team, or Builder for Owner, or in Partnership with others, we offer no surprises and the ability to build it right the first time.

Trinity has a proven track record in Upper Project Management, and Project Supervision from Land Acquisition, Forward Planning with Project Entitlements, and Land Development through Home or Multi Family Development.  Complete Project Development while maintaining a high proficiency in all computer applications with complete and accurate systems of Construction Documentation.

All large or small Trinity projects can include the Design/ Build agreement. Trinity works well with selected Architects for Design Build Projects.


Custom Home / Estate Home Development Danville CA
Commercial  Danville CA
Multi-Family Danville CA
Single Family Danvile CA
Civil Construction Danville CA
Large Remodel / Room Addition Danville CA
In-House Trinity Crewman Danville CA
Design Build Danville CA
Consultant Services Danville CA
Project Development Danville CA
Construction Documents Danville CA

Since 1999 Trinity Devco founded by Jim  Slevin  has built Apartment Complexes, High End Custom Homes in Danville CA, Production Housing, Commercial Construction, Production Land Development, Home or Multi-Family Restoration along with numerous smaller contracts including Home Remodel, Room Additions and Commercial Tenant Improvements in the Danville CA, & Surrounding San Francisco area

925.891.4220

CA CONT LICENSE # 977589