Large lot SFH in Transit Priority Area vs Residential Multi-family ( duplx, tri, quad

[Alex U.]

With San Diego's recent increase of Transit priority area, from 1/2 mile to 1 mile of a transit stop, most of city is now within a transit area. If you have a SFH with a large lot, and are okay with building low income housing, you can build quite a few ADUs, depending on the F.A.R, lot size, exact RS1-X zoning, etc.

How would you compare a SFH home with, for example, 9 ADUs ( 4 low income, 5 market priced) vs an 8 plex? If you can build at $250/ft, you could build 9 600sq ft units for 1.35M+ SFH cost. Finding an 8 plex for under 2.5M+ is hard in san diego. You would have a SFH zoning with a commercial loan likely.

What are the pros and cons of this approach vs buying a RM zoned multifamily and building ADUs?