Basically, it is possible to reconstruct also the white façades, as the are not totally white.
In your case there could help some kind of delighting. It looks like you captured the images in the sunny day, the ideal conditions for photogrammetry is overcast. Therefore the walls seems to be too bright and it is not possible to find any features for reconstruction there (in this case it is similar to water).
Have you tried to capture also terrestrial images?