Wood, fiber-cement, fiberboard, vinyl, poly-ash, the list goes on.

Each wall(partition) is also cement block. 

What I'd think about doing is to make up my patch in 1/2 in. cement board, get me some mastic, and tile the cement board in white, bisque, bone wall tile (whatever color best approximates the fixtures), including the edge with bullnose overunning the edge of the cement board by 1/2 in. or thereabouts.Drill out holes for your plumbing in that tiled board.

I treated all walls halfway up with a crystalline concrete waterproofing solution, sealed up cracks and holes with hydraulic cement, and decided on metal studs throughout the unit with rock wool insulation in walls and ceiling to resist moisture and insects.

My question is, while it's being rehabbed, I was considering having them re-pour the cement in the back driveway area and parking area next to it.

Then sheath and side with metal panels, vinyl siding, fiber cement, etc.

It's good stuff to have around - I also use it on top of wall studs before putting up cement board for shower tile, prep window and door openings, etc. 

It's about 600 sq ft and it's all dry walled, with cement flooring. 

Hi BP,I just had some guys out doing some work on my siding and they informed me that there was some cracks along the edges of the cement staircase as well as the foundation that needed to be fixed (see images below).The contractor proposed to use foam backing rods as they would be able to expand/contract properly.  

Hi BP,I just had some guys out doing some work on my siding and they informed me that there was some cracks along the edges of the cement staircase as well as the foundation that needed to be fixed (see images below).The contractor proposed to use foam backing rods as they would be able to expand/contract properly.