Don Rataj
Expert Witness

Don Rataj

Site Owner
Joined Nov 5 2009
General Info

64 years old
St. Louis, Missouri
Site Memberships

RedWineDesignz Fusion Artist Diane & Don Rataj
The ways of the Shark
History of Magic in St. Louis

Recent Activity
About Me

Award winning CEO/Architect of a National Architectrual and Interior design firm he founded for over 28 years (NCARB RA) and established over 20 state license

Experienced Architectural Construction Expert Witness with comercial/residential design, contracts, ADA compliance, building codes, fair housing act, mold, & building construction compliance. Experienced Expert witness with court & deposition testimony on items related to: Forensic Building Investigation, Personal Injury Claims, Construction defects, Interpreting Construction drawings.Architectural Design, ADA compliance, AIA documents & contracts, Building Codes, Life Safety, Movie Theater design, & building construction related issues. Completed Expert Witness cases in the following: Wrongful death within multi-family construction, Investigating Design Errors and Omissions. ADA Fair Housing Act compliance for multi-family housing, water penetration & mold development within multi-family & commercial medical building construction, Movie Theater design compliance of acoustical & ADA compliant stadium seating construction, specialty car collection facility, medical equipment installation/design & multi-family loft hi-rise building code compliance.Experienced Forensic Architect inspection of fire damaged apartment complex for cause and effect.


Experienced expert witness with cases that include but not limited to the following; Wrongful death due to faulty construction, Roof construction substitution, mold warranty items & fautly construction repairs to multi-family development, ADA fair housing act compliance for Multi family complex, Multi-family loft building renovation, building code compliance for life safety, means of egress, height restrictions & excessive construction cost of errors & ommissions, Movie theater stadium seating & acoustical design, construction non compliance construction & ADA items.

Emergency Response service request for Sunnet Hills City & Mehlville fire district during 2010 tornado Sunset Hills


Born and raised in the St. Louis area. Don has a passion for magic, which allows him to be actively involved in his community performing for several charities such as, the Junior League, Shriner’s Hospital, and St. Joseph’s Institute for the Deaf. Don also Published book written "The History of Magic in St. Louis"


1976-1978 HCBL Architects

1978-1983 Chiodini Architects

1984-1985 Robert Lococo

1985–Founded, Rataj Architects

1992-Incorporated Rataj Architects, Inc

2000–2012 Rataj-Krueger Architects, Inc.

2013 to 8/25/2014 Don Rataj Architectural Expert Witness


1976-BED Bachelor of Environmental Design, University of Kansas, School of Architecture

Professional Qualifications:

38 years of professional architectural experience.

Experienced Expert Witness for Architectural, ADA compliance & Construction.

Extensive architectural experience in healthcare, retail, multi family housing and commercial office buildings, in both building renovations and new construction.

Awards and continued education:

Exceeds the Architectural Continuing Education credits from AIA courses, while maintaining multiple state eductional requirements.

Awarded the Gold Medal from Building of America for the completed Campbell Montessori School


June 2010, Published in DCD magazine featuring the Campbell Montessori School project.

July 2004,Published in DCD Magazine featuring the Doering Office Building

November 2006, Published in DCD Magazine featuring the Oakbend Office Building with LEED Certification.

Don is a Licensed Architect in Missouri, License 4135, obtained 1981.

Earned NCARB (National Council of Architectural Registration Boards) Certification in 1985. Current status Active.

Past member American Association of Arbitrations, past arbitrator of 3 cases, in St. Louis MO.

Fee Structure: upon request

Exceeds continuing education credits from AIA courses, maintaining multiple state requirements.

Speaker at the Presidents Forum, on “Making More Green by Going Green”.

Current & past Architectural State Licenses including base state of Missouri:

Arizona, Michigan, Oklahoma

Colorado, Minnesota, Pennsylvania,

Florida (current), Mississippi, Tennessee,

Georgia, Missouri (current), Texas,

Illinois, New Jersey, Wisconsin,

Indiana, North Carolina,

Kentucky, Ohio.

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