California treats unimproved land as outside the residential Transfer Disclosure Statement regime, but natural hazard obligations under Civil Code §1103 can still reach a vacant parcel sitting inside a mapped flood, fire, or seismic zone. The bigger issue is the Subdivision Map Act (Government Code §66410 and following). A parcel conveyed in violation of the Act can be denied permits, and the cure is a certificate of compliance under §66499.35. Land under a Williamson Act contract carries a nine or ten year non-renewal tail that follows the buyer, and cancellation fees are steep. Water is a separate diligence track entirely, because a groundwater basin under a SGMA adjudication may cap what a new well can produce.
Texas exempts unimproved land from the seller's disclosure notice at Property Code §5.008, which applies to single family residences. Statutory notices still bite: Water Code §49.452 requires a district notice for property inside a municipal utility district, and Property Code §5.014 covers public improvement districts. Mineral severance is the defining Texas issue, since the mineral estate is dominant and its owner has an implied right of reasonable surface use. A surface waiver or accommodation agreement negotiated during due diligence is often worth more than the price reduction a buyer would otherwise chase.
Florida imposes documentary stamp tax on the deed under Fla. Stat. §201.02, which the contract should allocate expressly. Property partly seaward of the coastal construction control line triggers the affidavit requirement at Fla. Stat. §161.57. Wetlands and stormwater permitting run through the water management districts under Chapter 373, and a lot inside a platted subdivision may still fail concurrency review. Sinkhole history and karst geology belong in the environmental contingency, not in the buyer's optimism.
New York exempts vacant land from the Property Condition Disclosure Statement in Real Property Law Article 14, so the negotiated representations carry the full weight. Closings are attorney driven by custom, and the freshwater wetlands amendments to Environmental Conservation Law Article 24 expanded the parcels that need a DEC jurisdictional determination. Agricultural district land carries a rollback exposure on conversion.
In the prior appropriation states of the Mountain West, water rights are separate property and do not pass with the deed unless the contract says so. A land contract that is silent on water in Colorado, Montana, or Idaho is an incomplete contract.