Whole Sign Houses

Whole Sign houses are the oldest known house system in Western astrology, used in Hellenistic, Indian, and early medieval traditions. The method is simple: the entire sign that contains the ascendant becomes the first house, the next sign becomes the second house, and so on around the chart. There are no fractional house cusps — the cusps and the sign boundaries are the same thing.

A practical example: if your ascendant is 28 degrees Pisces, your first house contains all of Pisces (0–30 degrees), your second house contains all of Aries, your third house contains all of Taurus, and so on. A planet at 2 degrees Aries would be in your second house under Whole Sign, even though it is only 4 degrees away from your ascendant.

Whole Sign produces noticeably different house placements from Placidus, especially for planets near sign boundaries or near the angles. The same chart can have significantly different interpretations depending on which system is used. There is genuine disagreement among contemporary astrologers about which system is more accurate, and many practitioners read both systems for context.

Whole Sign has experienced a major revival in the last two decades as Hellenistic astrology has been recovered and translated, and it is now arguably the second most common system in Western practice. ZODIA defaults to Placidus to match the dominant standard but recognizes Whole Sign as a coherent and historically-supported alternative.