R1R3-RG zoning - What are my options to add value?

[Arun Chhatpar]

I am considering a property in mid Los Angeles market. It is a SFR, 3/3, 1600sqft on a 5008sqft lot. It is all single story at this point. The property is zoned R1R3-RG. I do understand at a basic level that this kind of zoning allows for a two story in structure in the back.

Is there anyone in and around LA who has added on such a property? What kind of addition did you make? What kind of challenges did you face?

Link to R1 zoning - 

http://library.amlegal.com/nxt/gateway.dll/California/lapz/municipalcodechapteriplanningandzoningco/chapterigeneralprovisionsandzoning/article2specificplanning-zoningcomprehen/sec1208r1one-familyzone?f=templates$fn=default.htm$3.0$vid=amlegal:lapz_ca$anc=JD_12.08.