A Dutch professor created the "Herengracht index" to track the price of these canal houses back to when construction started in 1620. [1] https://en.wikipedia.

A Dutch professor created the "Herengracht index" to track the price of these canal houses back to when construction started in 1620. [1] https://en.wikipedia.org/wiki/Herengracht_index https://en.wikipedia.org/wiki/Herengracht_index [2] https://papers.ssrn.com/sol3/papers.cfm?abstract_id=598 https://papers.ssrn.com/sol3/papers.cfm?abstract_id=598