Quote from @Braeden Warg: Thank you for the clarification and information.I live in Cabarrus County and have experience in residential and commercial construction.

This is after all construction in Los Angeles, if you've never done it before add 50k.If you have $500,000 in cash I suggest you use it elsewhere, this years long headache is likely not worth the 1000's of man hours you will also have to put into it running your very own team of scientists.

Is it common for developers to use subsidies to cover 100% of the construction costs without needing to obtaining debt or raising equity?

The house's exterior is constructed of brick material with a flat tile roof.

Thank you in advance for any constructive feedback. 

I began shopping for a large construction loan to build a new car wash on the land. 

@Ernesto Garcia Thats right, i got investment property conventional loan at that rate for a new construction property. 

We use private lending to finance the purchase and construction of this home.

@Brady Bitter since  you are buying new construction what makes you think you are getting 25% equity.

any ideas if there are any builders who would sell it to investors like me who wish to add new construction SFH's to their portfolios ?