Private mansion plots and low-turnover supply
The shortage is structural
The most important point is not that supply is tight in a given week. It is that the best owners often have no public-market reason to sell.
A buyer needs an advisor who can distinguish ordinary asking prices from genuinely rare access.
How to prepare
The practical work happens before a property appears: mandate clarity, financing or proof of funds, and a fast decision process when the right address becomes available.