So it seems Trump was just confused with the temporary buildings, when he promised that he is only spending $250,000..Don't worry.
Trump will spend major $$ on this.
Even in London (where arguably security concerns are less of a problem) the embassy cost over a billion.
In Jerusalem, it will probably be even more expensive.
On a different topic, I wonder what that means for the elderly residents of "Diplomat" hotel and their future.
I guess, there is no longer an urgent need to evacuate them?
As for London - that is a famous white elephant (Still an embassy in London is considered vastly more important than one in Israel, and the US operates much more staff and important work in London, so they won't spend those kinds of figures here.)
The $150 million spent in Amman, Jordan, might be more similar.