Welcome @Sanzhar ZikirovI would say not to get discouraged and don't compare your progress to those here, as you are working with a very different set of circumstances to those of us in North America. 

This is great news for you on two fronts:1) it should increase comparable rents in the area. 

The labor for a 200 amp compared to a 100 amp is the same. the only thing different is the ratings of the materials, they are heavier for the higher amperage. 

@Matt R.The prices in CA are so extreme compared to other areas, like here in Rochester. 

When I discovered the tax, appreciation, and rate of return benefits of real estate as compared to stocks, bonds, or p2p lending, I decided an addiction to REI would be in my best interest as an investor.

Is the place next to you comparable?

I've done quite a bit of research on this lately when I bought several water heaters...my thumbnail conclusions:Tankless are good in theory but can have issues if the hot water capacity is to low, so when comparing prices make sure you look at that.

Compare all expenses.

I just keep an eye on Craigslist and Facebook to see what comparable houses are going for and price accordingly.

The condos 1 mile away might be too far to be a true comparable.