There is total 9 different Building Models. Every single model has LOD(Level of Details). Here is the Poly-count of every single prefab:

MODELS - TRIANGLES - VERTEX

Hirise - 7.6K - 4.6 K

Hirise_02 - 7.0 K - 6.2 K

Hirise_03 - 3.7 K - 2.5 K

Hirise_04 - 8.0 K - 4.3 K

Hirise_05 - 5.5 K - 4.3 K

Hirise_06 - 3.7 K - 2.1 K

Hirise_07 - 6.0 K - 3.8 K

Hirise_08 - 1.2 K - 1.2 K

All the Diffuse Maps are in .png format Here is the list of textures and their details:

MAPS - DIMENSION

Grid_BaseMap - 1024x1024

Grid_Normal - 1024x1024

hirise_a - 1024x1024

hirise_n - 1024x1024

hirise_02_a - 2048x512

hirise_02_n - 2048x512

hirise_03_a - 1024x1024

hirise_03_n- 1024x1024

hirise_04_a - 1024x1024

hirise_04_n - 1024x1024

hirise_05_a - 1024x1024

hirise_05_n - 1024x1024

hirise_06_a - 1024x1024

hirise_06_n - 1024x1024

hirise_07_a - 1024x1024

hirise_07_n - 1024x1024

hirise_08_a - 512x2048

hirise_08_n - 512x2048