A section of the Zodiac, mathematically defined, which represents a particular area of life. The four quadrants which result from the system of axes are each subdivided into three fields. The calculation of the system axes is identical in almost all the various schools of Astrology but the method of subdividing differs. Actually the way of dividing the houses varies according to the method used. The best-known are the Koch (developed by Dr. Walter Koch), Placidus (developed by Placidus de Titus), Campanus (developed by Giovanni Campani) and Regiomontanus (developed by Johannes Muller) and Equal House.
The houses correspond to the twelve signs of the Zodiac but are not identical.