Does house geomantic omen set the compass according to the direction of balcony?

Your question should be "Is the orientation of building geomantic omen determined according to the direction of balcony" instead of setting a compass!

Different schools have different orientation methods. Among them, one school-"Kong Xuan Feng Shui"-swept Hong Kong in the late 1990s and set off a craze in the mainland after 2000. The orientation is determined by the direction of the balcony!

As to whether the popular school of Feng Shui in Kong Xuan is correct, different people have different opinions, so I won't comment.

In addition, many other schools are basically door-oriented, except the mysterious Feng Shui and the primary schools developed according to the mysterious Feng Shui.