I did some search on Google and came across this website.

Unfortunately, it's in Spanish... Any Spaniards here? :)

Copying and pasting the description from the website into Google translator doesn't give much information about the inscription, only this:

However, opt for a reinterpretation and renewal of ornamental motifs, giving courts the time of construction, given the technology of the "ones and zeros".

(Translated by Google)

So I would think it's random / artistic.

Also, i think this is the architect's personal website, so you can contact him! :)

I did some search on Google and came across this website.

Unfortunately, it's in Spanish... Any Spaniards here? :)

Copying and pasting the description from the website into Google translator doesn't give much information about the inscription, only this:

However, we opted for a reinterpretation and renewal of the ornamental motifs, giving clues to the period of construction, determined by the technology of the "zeros and ones".

So I would think it's random / artistic.

Also, i think this is the architect's personal website, so you can contact him! :)