Doing due diligence on land in Jacksonville FL

I have a signed contract on a piece of land, the idea being to build some SFR units. Trying to make sure all my bases are covered here.

1. Looks like septic tanks are needed here, so I will have the health dept soil test prior to closing, this will ensure that we can put a septic on the property.

2. Contacted the local utility for an availability work sheet for the exact property

3. Should I contact zoning? The property is zoned for SFR. There is a city easement to get to the property, as it sits behind (off the road) some else's property.

Any other due diligence ideas? Title search will be done.