Design-Build Construction Services • CA Lic. #649916 • Est. 1987

About Us



Specializing in the architecture and construction of fine custom remodeling projects. We offer clients a completely integrated design-build service, streamlining the architecture and engineering, permitting and construction all under a single management authority. Clients need only deal with one company throughout the whole construction process, which we manage from conception to completion, successfully delivering projects with superior results. 


Established in 1987

Jeff has been designing and building projects for clients for over 30 years, having worked on a range of exciting and beautiful projects. 

The overall design-build process is very rewarding, yet also very complicated, with hundreds of factors involved. 

It is important to select an architect and general contractor who has the experience, vision and talent to manage the project from conception to completion and successfully deliver the project with superior results. 


Meet the Architect-Builder

Thaddeus Jeffrey Plonowski, President of Plonowski Architects + Builders, Inc. is both a licensed architect and general building contractor specializing in the design-build mode of project delivery since 1987.
Educated and trained as an architect, and with years of hands-on construction experience, he has the vision, skills and talent necessary to design the project, obtain all building permits, construct and successfully complete the project. 


Architect-driven design-build remodeling

Having the architect on the jobsite every day takes advantage of the opportunities of change, and makes all the difference in the success of the project.