Hmm, that address sounds familiar...well it should do because we have seen it before on this blog: it was the house owned by Chuck Norris' casino owning boss in Forced Vengeance. See the previous post on it here.
In Dragon: The Bruce Lee (made-up) Story, the house is supposed to be Lee's real address at 41 Cumberland Road. The filmmakers even went as far as to put a #41 on the main gate. Actually, it looks like the front gate had a whole new concrete wall built - but this have just been a prop for the film seeing as the property currently just has a chicken wire and metal gate.
If you want to know where this place is then just click on the link to the Forced Vengeance post, this saves me repeating myself but does beggar the question: who actually owns this place? I would hazard a guess and say that perhaps someone at Salon Films owns (or owned) the place or at least someone who knew Charles Wang, the boss at Salon.