I don’t know the source of your “capture,” Balboa, but Uni Heights has some of the smallest and most poorly-configured lots in the city. Many (most?) of them are “substandard” (meaning <5000 sf in size).

The rent in there must be high enough to command an avg $549K sold price cuz I just don't see that many "end-users" buying in there, especially those with minor children (who need space to play).

I can't fathom that a buy-and-hold cash investor can do well enough on a rental there unless it is a 2-4 unit dwelling (or had a granny flat off the alley taking up the whole (postage-stamp) "backyard" of the main house.

Yes, I DO believe the claim that the 33 recent sales were "all cash." This is typical all over the county where there is a proliferation of SFRs listed at <=$550K. Looks like Uni Heights/Normal Heights have a "captive audience" of buyers due to their excellent close-in locations. Congrats on having $1200 month rent and I hope it continues for you!