Owners are open to seller finance a small portion ($300k) of the equity.

I’m more interested in joint ventures, seller financing type of a deal.

There are provisions for owner-occupied and non-owner occupied STRs in Sacramento : https://www.cityofsacramento.gov/finance/revenue/short-term-...The latter requires a conditional use permit but I don't see any info about that in the website.

How did you finance this deal?

I deal extensively with creative financing such as sub2's, land contracts, contract-for-deeds, assumptions, land trusts, etc.

You're talking needing plans, architect drawings, engineering study, a zillion permits and inspections.I just don't see a lender lending on this kind of deal without that person having major experience that includes some ground up or extensive rehab work.If you wanna "break in" to the financing world, it is not impossible at all. 

You can still do financing.  

MLS, Offered full price with large down How did you finance this deal?

You might utilize these extra cash for a down payment on a different house.Another good alternative is seller financing, which may be arranged directly with the seller and may entail a down payment and interest-bearing payments of the remaining amount over time.

Vacant land is not easy to sell unless you are offering seller financing with little to no down payment.