"I'm not 100% sure that these drawings do represent an actual building as this style of facade could've been adopted somewhere along the way."
The palace facade decoration predates Menkaure rather than being a stylistic convention that was adopted "along the way" and can be traced back as far as Dynasty 1. Mastabas at the Tarkhan cemetery exhibit the palace facade design, though you have to use your imagination as time has not been kind to these mud bricks:
Or, as UCL have depicted tomb 1060 as it would have looked:
The palace facade on the sarcophagus is the mastaba in miniature. Like the mastaba, the sarcophagus houses the body of the dead king. It's an expression of cultural tradition, an artistic metaphor and a reminder of the deceased's status.
Post Edited (21-Jul-15 22:04)