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Natal Chart (Tropical) · House 4 of 12

The fourth house, at the bottom of the chart

The fourth house is the angular house at the bottom of the chart, beginning at the IC opposite the Midheaven. Lilly gives it the father, lands and houses and the end of any matter; modern astrology reads it as home, family, roots and the private foundation of a life.

Which of your planets sit in this house?

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A wheel of twelve equal houses numbered counter-clockwise from the Ascendant at the left, with the horizon and the meridian drawn; house 4 is filled, labelled angular. 1 2 3 4 5 6 7 8 9 10 11 12 AC DC MC IC Angular
The fourth house in a schematic wheel of twelve equal houses; real cusps vary with the house system and the latitude. Our drawing.

Facts

Class
Angular
Lilly's ranking of strength
Fourth of twelve
Its cusp
The IC (Imum Coeli), in every quadrant system
Side of the horizon
Below the horizon (night side); the second quadrant, from the IC to the Descendant
In whole-sign houses
The fourth sign counted from the rising sign
Natural sign (modern teaching)
Cancer, with Moon
Our keywords
"home, roots, family"

Meaning

The fourth house begins at the Imum Coeli, the IC, the point of the zodiac on the meridian below the horizon, opposite the Midheaven: the lowest point of the chart and the angle of the earth. It is one of Lilly's four angles, fourth in his ranking of strength.

Lilly in 1647 gives it the father, lands and houses, tillage, and the end of any matter, with further items on inheritances and hidden treasure that we leave out here. Modern astrology reads it as home, family, ancestry and the private emotional ground a life stands on, and many modern authors give it the mother or either parent where Lilly gave it the father. Our keywords are "home, roots, family".

In a chart

A planet in the fourth house, close to the IC, is read as part of what a person comes from and returns to. The Moon, its natural ruler in modern teaching, is read here as a strong tie to home; Saturn as a sense of duty to it. These are colours of the tradition, not facts about anyone's family.

The axis from the fourth house to the tenth runs from the private to the public, the root to the visible branch, and astrologers read the two together.

Across the traditions

In quadrant systems such as Placidus the IC is the cusp of the fourth house. In whole-sign houses the fourth house is the fourth sign from the rising sign, and the IC degree falls wherever it falls, sometimes in the third or the fifth; in equal houses the fourth cusp is 90° from the Ascendant. Our chart lets you switch between Placidus, Whole Sign and Equal to see which planets move. The pairing with Cancer and the Moon is a modern teaching device.

Correspondences

Each item with how it stands: “sourced” is in the work cited, “our construction” is EsoTerrier’s own, and “disputed” means the sources disagree.

Topics (Lilly, 1647)
The father, lands and houses, tillage, the end of any matter (his items on inheritance and treasure left out) sourced
Class (Lilly)
Angular, fourth in strength sourced
Natural sign and ruler
Cancer, with Moon: a modern teaching device after Alan Leo; Lilly's pairings differ sourced
Topics (modern)
Home, roots, family sourced
One right house system
No: a planet's house can change with the system; ours is named on the chart disputed
Our keywords
"home, roots, family" our construction

How the schools read it

Hellenistic (Valens)
The fourth place, counted by whole signs from the rising sign.
Lilly (1647)
Angular; the father, lands and houses, tillage, the end of any matter (his items on inheritance and treasure left out).
Modern psychological (Alan Leo, Rudhyar and after)
Home, roots, family.
Jyotisha
The fourth bhava, always counted by whole signs from the lagna.
EsoTerrier
Placidus by default, Whole Sign and Equal a tap away, Porphyry above the polar circles; a reading for each planet in the house, in our own words.

Claims about it

  • There is one correct house system, and a planet's house is a fact of the sky.

    disputed

    What the record shows: A planet's house depends on the division chosen: between Placidus and Whole Sign a median of twelve of sixteen objects changed house in our 56 test charts. We default to Placidus and show the system on the chart.

  • Placidus is the traditional, or the original, house system.

    false

    What the record shows: The Hellenistic tradition used whole-sign houses. The Placidus division was first published by Magini in 1602; it is the most used today, not the oldest.

Elsewhere on EsoTerrier

Sources

Primary texts (3)
  1. Vettius Valens; tr. Mark T. Riley, Vettius Valens, Anthologies, translated by Mark T. Riley (preliminary translation, released 2010). Skyscript (hosting the author's PDF), 2010. The translator's copyright; facts and chapter references only. skyscript.co.uk/valens_riley.html
  2. William Lilly, Christian Astrology, modestly treated of in three books. Thomas Brudenell for John Partridge and Humphrey Blunden, London, 1647. Public domain; quoted briefly, from the 1647 edition. archive.org/details/b30338724
  3. Alan Leo (William Frederick Allan), Astrology for All, to which is added a complete system of predictive astrology for advanced students. Modern Astrology Office, London, 1899. Public domain; quoted briefly. archive.org/details/bub_gb_8CwSAAAAYAAJ
Studies and other sources (2)
  1. CHANI, CHANI: What whole sign houses are and why we use them; CHANI help: aspects used in the app. 2026. Consulted for facts; never copied. chani.com/astro-education/what-whole-sign-houses-are-and-why-we-use-them
  2. Wikipedia contributors, Wikipedia: House (astrology). 2026. CC BY-SA; consulted for facts. en.wikipedia.org/wiki/House_(astrology)
Our own research (3)
  1. EsoTerrier, Natal and sidereal wheels: research for the rebuild (README, report-main.md, notes/). Research folder 2026-10-11-natal-sidereal, 2026.
  2. EsoTerrier, Helper report: validation of the natal chart engine (tropical and sidereal). Validation report, 2026-10-11, 2026.
  3. EsoTerrier, EsoTerrier chart engine: services/chart/ephemeris.py, calculation.py, jyotish.py, texts.py. python/esoterrier, services/chart, 2026.

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By EsoTerrier. Written with AI assistance from our research and checked against its sources; last revised 20 October 2026. How we write these pages.

First published ; last revised . Corrections: support@esoterrier.com.