The Sand Dollar @ ADD‑A‑BALL is a music and live-event space located within Add‑A‑Ball Arcade & Bar at 315 N 36th Street, Suite 2B, Seattle, WA 98103. Known for its 21+ shows, the venue hosts live bands, DJs, and themed events upstairs under the “Sand Dollar” room name, providing a vibrant atmosphere that complements the arcade & bar environment downstairs.