I was just in a model RRers basement in S.E. PA where you had to crawl over the layout to reset a breaker. Plus he went and troweled plaster flush around the panel covering the wires in solid to blend the panel into the painted background. (The wires need to be exposed to the air).
Something to consider when building your layout.
National code concerning access to your breaker panel is a clear walk up space of no less width than 30" and a working area depth of 36" and a height of 78". No crawling under a layout to a pop up hole.
Some local codes state that the working space must be 36" square by 6'6" tall.
When I installed a new 200 amp service our electrical inspector was satisfied with a pair of 36" lift out bridges.