The 12 Houses in Astrology Explained, with Meanings

The 12 houses in astrology are the part of a birth chart that turns general personality into the story of an actual life. Signs tell you how a planet behaves; houses tell you where in life it shows up: home, work, love, money, friendship. If you've looked at your chart and wondered what the numbered slices of the wheel mean, this guide explains what houses are, why they depend on your birth time, how the different house systems work, and how to read a planet in a house.

What are the houses in astrology?

A birth chart is a circle, and the houses divide that circle into twelve sections. Each house covers a particular area of life, and any planet that sits in it brings its energy to that area.

It helps to know how houses differ from signs. The zodiac signs are twelve fixed 30-degree stretches of the ecliptic, the Sun's path across the sky, and they are tied to the seasons. The houses are tied to you: to the place and the moment of your birth. They are calculated from the horizon and the sky overhead at your birthplace, and they are why two people born on the same day, with all their planets in the same signs, can have very different charts.

Houses begin on the left-hand side of the chart wheel, at the Ascendant (your Rising sign), which is the point where the zodiac was rising over the eastern horizon when you were born. From there they run anticlockwise: the 1st house sits just below the Ascendant, the 7th begins opposite it at the Descendant, the 4th begins at the bottom of the chart, and the 10th at the top, at the Midheaven. These four points, the Ascendant, Descendant, Midheaven and its opposite (the Imum Coeli, or IC), are the four angles of the chart, and planets near them tend to stand out.

Why do houses need your birth time?

The Earth turns once a day, so the whole zodiac passes over the horizon in about 24 hours. That means the Ascendant moves through a sign roughly every two hours, and every house boundary moves with it. A planet that sits in your 5th house at 10 in the morning could be in the 4th or 6th house by lunchtime.

Planets, by contrast, hardly move in that time. The Sun shifts about one degree a day, and only the Moon changes noticeably over a few hours. So without a birth time you can still read every planet by sign, but you can't say which house any of them falls in, or what your Rising sign is. A guessed time can put you in the wrong Rising sign entirely.

If you don't know your time, a birth certificate or hospital record is the best source. Once you have it, our free rising sign calculator will give you your Ascendant, and our guide to the rising sign explains what it means.

What do the 12 houses mean?

Each house has a theme, and the themes follow a rough path from the self outwards: you first, then your resources, your surroundings, your home, your pleasures, your work, your partners, and eventually the wider world. Here are all twelve at a glance.

The "natural sign" column shows the sign whose character each house resembles. The 1st house is the Aries house (a fresh start, the self), the 7th the Libra house (partnership), and so on. This is a useful memory aid, though your actual chart will have different signs on each house.

The three groups of houses

Houses fall into three types, and they help with interpretation.

• Angular houses (1, 4, 7, 10) begin on the four angles of the chart. They are the most visible and action-oriented: identity, home, relationships and career.
• Succedent houses (2, 5, 8, 11) follow the angular ones and are about building and sustaining: resources, creativity, shared resources and community.
• Cadent houses (3, 6, 9, 12) come before the next angle and are about learning, adjusting and processing: communication, daily work, belief and reflection.

Planets in angular houses are often the easiest to spot in a life; cadent ones work more quietly.

Which house system should you use?

There is more than one way to cut the chart into twelve houses, and the system you pick can move some planets from one house to the next. All of them agree on the Ascendant and, in most cases, the Midheaven; they differ in how they place the boundaries in between.

• Placidus is the most widely used system in modern Western astrology, and it is the one we use. It divides the time it takes each degree of the zodiac to travel from the horizon to the Midheaven, so houses come out unequal in size, especially at higher latitudes.
• Whole sign houses are simpler: the entire sign containing your Ascendant is the 1st house, the next sign is the 2nd house, and so on. Every house is exactly 30 degrees, and each coincides with one sign. This is the oldest system and has become popular again.
• Equal houses start at the exact degree of your Ascendant and give each house 30 degrees. So, with the Ascendant at 14 degrees of Virgo, the 2nd house begins at 14 degrees of Libra.

Placidus has one known limit: in the far north and far south, around and beyond the polar circles, it cannot be calculated properly. For people born that far north, whole sign or equal houses are the normal fallback.

None of these is "the correct one". If a planet sits close to a house boundary, read the neighbouring house too.

How do you read a planet in a house?

The simplest formula is the one used throughout astrology: planet (what) in sign (how) in house (where). Take a few examples:

• Mercury in Gemini in the 3rd house: a quick, curious mind (Mercury in Gemini) that is most at home in everyday conversation, writing and learning (3rd).
• Venus in Libra in the 10th house: a love of harmony and beauty (Venus in Libra) that shows up in your career and public image (10th), perhaps in a profession that involves people, design or diplomacy.
• Saturn in Aquarius in the 4th house: a serious, independent approach (Saturn in Aquarius) to home and family (4th), perhaps a sense of responsibility there from an early age.

If several planets cluster in one house (a stellium), that area of life is a major focus.

What is the ruler of a house?

Each house starts in a sign, and the planet that rules that sign is called the house ruler. To see how a house works out in practice, find its ruler and note where that planet is. If your 7th house begins in Leo, the Sun is the ruler, and the Sun's sign and house describe how your partnerships develop. This is the way to read houses that have no planets in them.

What do empty houses mean?

Almost every chart has some empty houses, since there are only ten planets (counting the Sun and Moon) and twelve houses. An empty house doesn't mean that area of life is missing or unimportant. You still have a home life even if your 4th house is empty. It simply means no planet is bringing a dominant theme there, so the sign on the house and its ruler tell the story. A house with several planets, by contrast, tends to be a place where a lot happens.

How do houses fit with the rest of your chart?

Houses are one of four layers, alongside planets, signs and aspects. The planets describe the parts of you, the signs the style they use, the houses the setting, and the aspects how the parts talk to each other. No single layer tells the whole story. For a step-by-step approach to putting these together, see our guide on how to read your birth chart.

Houses also change the way you read the Sun and Moon. A Sun in the 10th house will often shine through a career or a public role, while a Sun in the 12th may find its brightest moments in quiet, private work. For the Moon, read its sign in our Moon sign meaning guide, then check its house to see where those needs play out.

Our Natal Chart Report places your Sun, Moon, Rising sign and every planet from Mercury to Pluto in their houses, using Placidus, and explains each one in about 14 pages.