What are house types?

The twelve houses fall into three groups of four: angular, succedent, and cadent. The grouping describes how much force a planet in a given house tends to carry and how directly that energy shows up in a life. It comes from where each house sits in relation to the four angles of the chart, the pivot points fixed by the horizon and meridian at birth. The angular houses, the first, fourth, seventh, and tenth, sit right on those angles and are the strongest and most active. A planet here acts with force and visibility. The succedent houses, the second, fifth, eighth, and eleventh, follow the angular ones and concern what is held, built, and sustained, giving a planet a steadier, gathering quality. The cadent houses, the third, sixth, ninth, and twelfth, fall away from the angles and concern learning, adjustment, and preparation, so a planet there tends to work more quietly. Knowing a house's group adds a layer to reading any placement. The same planet can push hard into the open from an angular house or work behind the scenes from a cadent one.