When you get the technology for houses, all of your huts automatically change to houses but, nowhere in the City Detail Screen does it show the capacity change 10 huts = 250 people now becomes 10 houses = 400 people.
I would really like to see the number of buildings and the capacity shown in the City Detail Screen, where total population capacity is shown under Resources and number of buildings (1o Huts, 10 Houses, etc.) is shown under Buildings.
City Detail Screen
-------------------------Resources---------------------------------------
Capacity (250)
------------------------Buildings-------------------------------------------
10 Huts
2 Farms
1 School
-------------------------Resources---------------------------------------
Capacity (400)
------------------------Buildings-------------------------------------------
10 Houses
2 Farms
1 School