Welcome to BYC. It's great to see someone doing solid research ahead of time.
Since you have both extremes of weather, have you seen these two articles:
https://www.backyardchickens.com/articles/cold-weather-poultry-housing-and-care.72010/
https://www.backyardchickens.com/articles/hot-climate-chicken-housing-and-care.77263/
And this one on the principles of good ventilation: https://www.backyardchickens.com/articles/repecka-illustrates-coop-ventilation.77659/
I think that a Woods Coop might be an excellent design for your situation, though it might be an expensive build.
https://www.backyardchickens.com/ar...-kd-knock-down-10-by-16-coop-pictorial.75421/
Since you have both extremes of weather, have you seen these two articles:
https://www.backyardchickens.com/articles/cold-weather-poultry-housing-and-care.72010/
https://www.backyardchickens.com/articles/hot-climate-chicken-housing-and-care.77263/
And this one on the principles of good ventilation: https://www.backyardchickens.com/articles/repecka-illustrates-coop-ventilation.77659/
I think that a Woods Coop might be an excellent design for your situation, though it might be an expensive build.
https://www.backyardchickens.com/ar...-kd-knock-down-10-by-16-coop-pictorial.75421/