LONDON (Reuters) - You see a vacant east London building lot paved over with asphalt and used as a car park. Tim Pryce sees the site of a rack-'em, stack-'em prefab temporary designer boutique hotel.

Construction on the Palm Springs Downtown Park, designed by Rios Clementi Hale Studios, is expected to begin later this year, with completion scheduled for 2020. This is big news for the prefab ...