Mount Everest's elevation is 8,848.86 meters (29,031.7 feet) above sea level (2020 China-Nepal survey). "Stories" is a building metric (~3 m / 10 ft per story), yielding roughly 2,950 stories—but this is a meaningless comparison for a mountain.
Mountains are measured by:
Everest remains Earth's highest point above sea level, regardless of unit.