Quadrant Design architects & planners

waterloo: 618.939.0606
sparta: 618.443.4012
fax: 618.939.0607

How can we Help?

Quadrant Design provides a wide array of professional services.  From conception through completion, we work with each client to deliver the best product to fit their needs. 

We offer a multitude of services in house and retain engineering consultants & specialists when the project scope can benefit from their expertise.


Architectural Services



New Construction

Space Planning

Renovation Rehabilitation


Material & Color Selection

Adaptive Reuse


Furniture Specifications

Historic Preservation



Building Additions


Signage & Way finding



Master Planning


Construction Services

Construction Management

Site Selection & Analysis


Construction Administration

Urban Planning


Design Bid Build

Building Programming


Design Build

Feasibility Studies



Grant Assistance


Zoning Process Assistance