Whole-sign houses

Definition

Whole-sign houses are the oldest house system of Western astrology, dominant across the Hellenistic tradition and reactivated by contemporary practice from the late twentieth century onward. Every zodiac sign maps to one full house: the sign of the Ascendant forms the entire first house, the next sign forms the entire second house, and the pattern keeps stepping forward around the zodiac wheel one sign per house until the twelve houses close.

In context

If your Ascendant lands at any degree of Gemini, the first house in this system runs from zero to thirty degrees of Gemini, the second covers the whole of Cancer, the third the whole of Leo, and the pattern continues one sign per house around to the twelfth. As a consequence, the Midheaven does not always coincide with the cusp of the tenth house: it can fall in the ninth, the tenth, or the eleventh, depending on latitude and birth time. Traditional astrology separates both figures and reads them as independent layers of the chart.

To go deeper

Whole-sign houses belong to the family of structural systems:

• House system: the general category they sit inside.
• Equal houses: the neighboring system by simplicity.
• Cusp: the degree where each house starts.