Of course those in the higgledy-piggledy position must be of the poorest class, but you can make a few exceptions.
Whitewash the inner walls of half the buildings, and use paper or cloth to hide the nakedness of the other half.
This will make a fair counterfeit of Petropavlovsk.

Inside each house place a brick stove or oven, four or five feet square and six feet high.

Locate this stove to present a side to each of two or three rooms.

In each side make an aperture two inches square that can be opened or closed at will.

The amount of heat to warm the rooms is regulated by means of the apertures.
Furnish the houses with plain chairs, tables, and an occasional but rare piano.