Share your insights or perspective on the financial matter presented in the input.

How much does it cost to build a subdivision of houses on a large plot of land?
Obviously you're missing that there is no house on the land so the cost comparison between a house and land isn't terribly valid.   The land might not have connections to the municipal sewage/power/electrical and may need zoning changes and permits for those connections.   You're missing that you don't know how to design and build a house so you'll need to hire people for those tasks; then live through the process, headaches, and probable budget overruns. Edit: You're also missing that lending for speculative land development is significantly different from lending for a single family home.