Ideas on Vacant land zoned for retail, office, ?

[Jay Sandefur Jr]

I have an opportunity to buy a tiny lot in a gentrifying neighborhood. The maximum density is 30 dwelling units per net acre. 

I've never done this before.... But I waited 10 years to get started w/my current investment so I do better just jumping in feet first.

I have one buy & hold property currently and one primary residence both in NorCal. I want to develop this lot into a live/work work apartment w/Retail on the ground. Anyone have any experience with this and could offer anything that I should expect. Or if anyone has any ideas or cool concepts they've run across. Thanks in advance.