Mine are in large quarters. I have a trio in a 30x30 pen with a small 4x4 coop. I have 10 Mille Fleur project Cochin growing up boys in a 7x14 coop and their run is about 30x60. I do not cover mine but the coops can be closed up tight at night. They are well ventilated, even in winter.
The smallest tractor I have a trio in is my blue/yellow tractor. The coop area is 3x4 and the run part is 4x6. One hen complains daily to me that she hasn't enough room to get away from her room mates. Not that they don't get along but she likes her privacy. I think she is about to go broody.
The good thing about the tractor though is that I can move it every day or every other day for fresh dirt, grass and bugs.
My white bantam Cochins finally cleaned up all the grass in their pen and now need new quarters so they won't be on dirt all the time. I will move them out for the summer and let the grass grow back in there for later use.
I hear you about the beach! I like to go when no one else does. No lines, no noise, no trouble. We usually take the kid out of school and go.