Monumental Cupcakes At Jp Art is located at 36 South St, Jamaica Plain, MA. This business specializes in Candy & Sweets. Monumental Cupcakes At Jp Art is open Wed - Fri, 1:30pm - 8:30pm; Sat, 11am - 8:30pm; Sun, 11am - 5pm; Mon - Tue, closed and accepts American Express, Cash, Discover, Mastercard and Visa.