2-The 2nd stage came in the middle of the 18th century. Houses of individual projects made up by the local masters. During this time the house was modified. The basement was turned into a kitchen of living space, a front porch and balcony appeared and the windows were widened.
3- The 3rd stage began in the first half of the 19th century. The most common type in Irkutsk with a basement, a high porch and a balcony on the back side of the house. Simple structures gave way to more complicated and interesting construction. These houses had different porches and attics. The facades were decorated with carvings and thread work. Special emphases were placed on adorning windows, with rich carvings and scrolls. The sign of the sun could be outlined with jagged star shapes