Tartan & Toile is a Philadelphia residential interior design firm founded by Lucy O'Brien. Known for cinematic, luxe-layered interiors rooted in historical preservation and meticulous storytelling, the firm serves discerning clients across Philadelphia and the Greater New York area.

Lucy is an Architectural Digest Pro featured designer, a House Beautiful Next Wave Class of 2025 inductee, a Kips Bay Decorator Show House Palm Beach 2026 designer, a Red Luxe Award recipient, and named to Luxe Interiors + Design's Next 2026 East list. Her work has been featured in publications such as Luxe Interiors + Design, The Wall Street Journal , and House Beautiful and Philadelphia Magazine.