In the first week after the new unveiling of GTA 6, talented modders recreated Jason’s hideout (it’s not his house, as it belongs to Brian and is provided to the protagonist for free in exchange for collecting debts from businesses). It was initially shown outside, then inside, throughout the trailer in GTA 5, with all possible details and nuances. However, they placed it at the exit from Los Santos instead of north in Chumash, where it would have fit better.
This mod, however, was not made available publicly. The authors initially did not make it for single-player but adapted it for FiveM and offered it to RP server owners (and anyone interested) for 30 dollars. At some point, they removed the listing, possibly fearing a reaction from the rights holder, who had previously objected to the appearance of a modern Vice City map in the Grand Theft Auto V engine. It’s a pity. The two works could have complemented each other perfectly.
Source: gta.com.ua