The find, announced by renowned archaeologist Zahi Hawass, also includes the nearby tomb of Queen Teti Sheri, grandmother of Egypt's first New Kingdom pharaoh, Ahmose I.
"This is the first time that we discovered, 1,500 decorated blocks, the most beautiful scenes I've ever seen in my life with the color," Hawass described the blocks.
The discovery of a limestone tablet bearing the name of Senmut, Hatshepsut's architect, further confirms the importance of the site.
Queen Teti Sheri's modest rock-cut tomb, with its red wall paintings, provides another crucial piece of the historical puzzle, offering a glimpse into a period just before Hatshepsut's reign.