Custom Luxury Home Remodeling and Construction Each home we build/remodel/add is unique and special, a site-specific architectural design. Our clients know we'll be there for them long after the house is finished. Custom Home Builder / Remodeler / Additions / Renovations Since 1990, Katz Builders, Inc., Custom Builders & Remodelers has built a reputation for building the finest homes in Orange County and Los Angeles. Team Katz is recognized as a leader in building and renovating high-performance luxury homes. The team takes pride in building every home and is committed to exceptional customer satisfaction.