Astrological houses
Porphyry Houses
Direct answer
Porphyry Houses are a quadrant house system that divides each quadrant between the angles into three equal sections.
Porphyry Houses divide each angle-to-angle quadrant into three equal houses.
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At a glance
- In astrology
- Porphyry keeps the angles as house cusps and creates intermediate cusps by trisecting the ecliptic arcs between them.
- Found in
- Houses
- Related
- Birth Chart, Zodiac, Transit
Porphyry Houses divide each angle-to-angle quadrant into three equal houses.
A structural orientation; exact placements depend on the chart or technique being discussed.
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The story behind Porphyry Houses
Porphyry is named after the late antique philosopher Porphyry and is one of the simpler quadrant systems.
A one-minute story
The Twelve Places
How the turning sky was cut into twelve places, and what each was read for.
The spiritual meaning of Porphyry Houses
Spiritually, Porphyry Houses ask how the four pivots of life divide the path between private and public motion.
Why Porphyry Houses matters
Porphyry Houses matter because they are simple, old, and explicitly tied to the four chart angles.
Porphyry Houses in practice: an example
Between the Ascendant and Midheaven, Porphyry divides that quadrant into the Twelfth, Eleventh, and Tenth House sections.
Where readings of Porphyry Houses go wrong
A common error is to assume older means more authoritative in every context. Match the system to the technique.
Sources and editorial method
This entry summarizes the tradition in the Almanac's own words; where no source is listed, it is an editorial summary rather than a primary text, and symbolic readings are named as the tradition's, not as fact.
- Source
- The Great Almanac Dictionary
- Category
- Houses
- Last updated
- 2026-09-26
Study your Porphyry houses
Porphyry Houses in a book is one thing; Porphyry Houses in your own birth chart is your life. The Oracle casts your real chart and tells you what it means for your love, your work, and your year ahead, in conversation. It opens with the 7-day Seeker trial.
Speak with the OracleHow Porphyry Houses lives in your own chart across your year, in love, in work, in timing, is written in the Cosmic Codex: the whole year, once. Open the Cosmic Codex
Related terms
More in Houses
- Succedent Triad
- Angular Houses
- Derived Houses
- Equal Houses
- House Cusp
- Intercepted Houses
- Placidus
- Planet in the Second House
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Common questions
What are Porphyry Houses?
Porphyry Houses are a quadrant house system that divides each quadrant between the angles into three equal sections.
What does the name Porphyry Houses mean?
Porphyry is named after the late antique philosopher Porphyry and is one of the simpler quadrant systems.
What do Porphyry Houses mean in astrology?
Porphyry keeps the angles as house cusps and creates intermediate cusps by trisecting the ecliptic arcs between them.
What do Porphyry Houses look like in a birth chart?
Between the Ascendant and Midheaven, Porphyry divides that quadrant into the Twelfth, Eleventh, and Tenth House sections.
What do Porphyry Houses mean spiritually?
Spiritually, Porphyry Houses ask how the four pivots of life divide the path between private and public motion.
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