No, they don't have "siestas". In Spain usually all retail closes from 2pm to 5pm. I wouldn't expect to go to a UK venue and have a normal dining timetables (for me as Spaniard), because I understand things work different there.

mr nacho trying to justify a Spanish tradition. fair enough. but I'm still bold enough to complain about it. it's super annoying when restaurants close from 2 to 5. also I doubt anybody from the foot soldiers actually takes a siesta. it's most likely just basically a variation on unpaid work or being on call unpaid. so, nobody benefits of it except the owners who just optimize the schedule for their purposes.

Why didn't you learn Spanish?

Unfortunately cold emails are generally ignored. The general etiquette in Spain is that you have to establish a relationship with someone in the business before they respond to emails, and then it also depends on the individual if they like to use email or not.

> and went to the real estate agencies and found they had siestas, still, in barcelona,

I'm not seeing your issue here. This has been well-known for a century, so don't show up during the siesta time.

"I want to live in a foreign country, but they need to change to be like my home country!"