Theodore Ellison Designs

Glass rondels are circular panes individually blown by artisans, each with its own small story. Theodore Ellison Designs is a custom mosaic and leaded glass studio in Oakland, California, with more than 20 years of experience. The studio collaborates with homeowners, architects, and designers on one-of-a-kind pieces, beginning each project with a sketch informed by client preferences and site needs. Its collections include rondels, leadlight, mosaic, rugs, and bespoke work. Leadlight designs use geometry, pattern, and glass selection to balance privacy with light transmission; mosaic work features opalescent and metallic finishes. Projects may adapt existing patterns or start from scratch, and often incorporate glass made specifically for the studio. The team draws on traditional tools and techniques while creating original work informed by 20th-century design traditions.