Landscape architecture, construction and horticultural maintenance for the San Francisco Bay Area and Northern California. Founders Michael Thilgen and Linda Juratovac began working in the landscape industry in 1972, and formed Four Dimensions in 1984. Four Dimensions has a primary focus on private gardens, but also works with local public agencies. As consultants and designers, they help create ecologically sustainable public gardens, educational publications and professional training programs. Emphasis on conservation, restoration and native plant horticulture. California Landscape Architect #2906. California Landscape Contractor #484907. Certified horticulturists.