With no information but a 2D drawing, answering your question is just commenting on a line study. Plans, 3D, shadows, materials, info on construction methods, goals, etc. should play in deciding the height.

It looks like a stack bond, with the same material alternating from stack to running to stack across the elevation. And horizontal joints do not align. On purpose? Also, the window mullions don't appear to be integral with the design.

Other than that, the birds have as much precision as the Navy Blue Angels.

@3onthetree Thanks for your comment. I am more than a bit frustrated that I am being asked to make this decision based on only the 2D diagram. The primary material is stucco, and then there are 3 accent materials, represented by the "aligned blocks", the "unaligned blocks", and the "tiny blocks" you see to the left of the front door. The materials to the left and right of the door wrap around and clad the sides of the porch, and then run into the house. The materials are TBD, but the size/scale/alignment of the blocks aren't representative of the materials.

What did you mean by the horizontal joints do not align? And what do you mean by your comment about the mullions?

Regarding the birds, yes lol. And there are no palm trees planned, either -- those are stock items this architect likes to put in his renderings.