Dictionary term
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.
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.Quick reference
- Use when
- Use Porphyry when you want a quadrant system with direct geometric division between Ascendant, Midheaven, Descendant, and IC.
- Do not use it for
- Do not assume older means more authoritative in every context.
- In astrology
- Porphyry keeps the angles as house cusps and creates intermediate cusps by trisecting the ecliptic arcs between them.
- Reference category
- Houses
- Related terms
- Birth Chart, Zodiac, Transit
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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.
Porphyry Houses in spiritual tradition
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 at work: an example
Between the Ascendant and Midheaven, Porphyry divides that quadrant into the Twelfth, Eleventh, and Tenth House sections.
Sources and editorial method
This concise reference separates established definitions from historical, symbolic, or interpretive claims. Entries without external references are presented as editorial summaries rather than primary-source scholarship.
- Source
- The Great Almanac Dictionary
- Category
- Houses
- Also appears in
- Houses
- Aliases
- None listed
- Last updated
- 2026-07-15
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, free.
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
Common questions
What is Porphyry Houses?
Porphyry Houses are a quadrant house system that divides each quadrant between the angles into three equal sections.
How is Porphyry Houses used in astrology?
Use Porphyry when you want a quadrant system with direct geometric division between Ascendant, Midheaven, Descendant, and IC.
What should I avoid when interpreting Porphyry Houses?
Do not assume older means more authoritative in every context. Match the system to the technique.
