Tell HN: Take my idea: dream home designer

I would love to see it load various zoning laws and as well as building requirements for a particular city and then work within those constraints. There is not a lot of regular sized conforming building lots in bigger cities. In many cases, you have to get a variance from the zoning board before you can even get a building permit.

What might be a cool feature also is a renovation tool that can sort of plan what you see on a show like Property Brothers. Given a blue print of the existing house, the tool can help you visually plan a renovation.

Secondlife is good for idea visualization

I think the big challenge is getting the wall dimensions right for the hidden stuff, like piping wiring, central Heat/AC, etc.

How much would you pay?

SketchUp can help you. It has a learning curve, though.

Falling Water is the product of a skill set orthogonal to that acquired by mastering Sketchup. There is 10x residential design.

houzz.com has a lot of "inspiration" photos

The Sims.