Nothing definite... just a possibility. Cannot disclose exact location but the locale can only be reached by boat. Lots of beautiful houses in the area but this 15-room beach house, they say this fits the Cullen House description the most.
Uhmm, its beautiful but I dont think it fits the description in the book. From what I have learned with the help of Google translate this is just the source's idea of the Cullen house. The official BD production has no official stand or participation in this. Or I may be wrong, I may need Edward's expertise in translating Portuguese. lol