I dont know what the OP is talking about but i'm going to post links of LA's oldest and poor neighborhood areas with great home architecture and detail. Often the homes and areas were nice areas at one time, but as people moved out and poor moved in, many homes were left to decay due to no money to restore historic homes. Some areas have been gentrifying or individuals who took risk to move into crime areas/poor schools/less safe areas to live and fix up these grand homes. Or just residents who take care of old homes and not butcher them like remove wood siding and putting stucco exteriors or replacing unique windows with Home Depot windows. I'm choosing streets with nicer looking homes, rather than run of the mill homes which are small 2-3bedroom/1-2bath bungalows which were very typical and mass produced. Not that they are bad homes and dont have unique features but so much of older LA was built like it.
Pico Union neighborhood just west of Downtown is one of the poorest and crime ridden areas. These SFH and converted homes split into multifamily.
https://goo.gl/maps/4n4sRo3dPV42
https://goo.gl/maps/wVNopwjZZcN2
Echo Park (gentrifying area NW of Downtown)
https://goo.gl/maps/d3UshLnUtyJ2
https://goo.gl/maps/djBf6zBCQMy
Lincoln Heights North of Downtown
https://goo.gl/maps/2uNWzRVoZBK2
https://goo.gl/maps/SsgifPBLVAP2
Boyle Heights East of Downtown
https://goo.gl/maps/KmiNjSiEqKF2
Historic South Central South of Downtown
https://goo.gl/maps/T9iqxEfQn3n
OUTSIDE of Downtown orbit
West Adams Jefferson
https://goo.gl/maps/fNNnuPvdEmm
https://goo.gl/maps/HLckPpooHuF2
Harvard Heights
https://goo.gl/maps/R7knz7PrGJ72
Koreatown
https://goo.gl/maps/PoRZhbVQL2s
Highland Park
https://goo.gl/maps/sTHDbvVfPZC2
https://goo.gl/maps/JFQPwC3P62L2
https://goo.gl/maps/ThAPg3S1hn92