His work is deeply rooted in the Finnish architectural tradition, particularly inspired by Alvar Aalto, but also characterized by a unique sense of light, space, and rhythm.

Leiviskä studied architecture at the Helsinki University of Technology, graduating in 1963. He established his architectural practice in 1964 and gained recognition for his church designs, which are often described as poetic, serene, and masterful in their use of natural light.

Juha Leiviskä remains one of Finland's most revered architects, known for creating meditative, light-filled spaces that balance modernism with warmth and spirituality. His work continues to inspire architects and designers worldwide, particularly in the fields of religious and public architecture.