Although the 1950 census won't be out until 2022, we at Stevemorse.org have put up location finder aids for it. I have transcribed the street index for the City of Los Angeles, and you can find it on our "unified tool" on the website in the census section. Just change the year to 1950 at the top.
In addition, the National Archives has put online 20 submaps of the City of Los Angeles dated around 1950.
It would help if you had told us the address.
Dana Point, CA