Many big problems can be solved or processes reinvented with pretty rudimentary technology thats 30 years old.

Seems like there should be something between a Car title or a passport as a piece of paper, and Blockchain.

Perhaps a secure database?

Like buying a home is a series of the most archaic processes together. But the solution isn't something beyond:
You could reinvent the whole process with.

1)Take great photos + 3D scan with iPhone
2)Create Carfax for houses, a central document of surveys, problems, changes, title info, planning laws
3)Host 3 open days co-ordinated using eventbrite.
3)Sell via online auction a bit like http://carsandbids.com 

Job done.