Home/Domestic life, our childhood home, the relationships we have with our families, how we spend our time at home, how easily we are able to find comfort and relax, where we retreat to guard ourselves, where we release emotions and become vulnerable, real estate, inherited properties or houses, ancestors, and lineages, etc.

The Cancer House
The Fourth House is sometimes known as the Cancer House. It is the house of home and family, which are two things Cancer often holds most dear. Crabs retreat into their shells when they sense changes in their environment and seek places of familiarity to give them comfort. Because Cancer is ruled by the Moon, this house can show where and how we may express our more vulnerable, emotional, and internal selves.
Those who have many planets that fall into the fourth house will likely find a lot of enjoyment in their home life and continue having strong ties to their family in adulthood. If the planets are benefic planets, like Pluto, however, this changes the result. In that case, the person may not be fond of either their home or family life; which is usually due to having harsh childhood experiences of abuse or neglect.
Having no planets in this house simply means that the person doesn’t have strong bonds with their family and is likely highly independent of them. Conversely, it could mean the person is very different from the rest of their family, which has left them with a sense of detachment from family.
Angular Houses
The 4th house is one of the four Angular houses, along with the 1st, 7th, and 10th houses. Aries rules the 1st house, Cancer rules the 4th, Libra rules the 7th, and Capricorn rules the 10th house. Although these houses are vastly different, they are all ruled by Cardinal signs.
Aries, Cancer, Libra, and Capricorn are all Cardinal signs. Cardinal signs are often known for leading others and not following blindly without questioning previous methods. Because these four signs rule the angular houses, they are often the places in our charts that may show us where we are less likely to follow others blindly.

Planets in the 4th House
Sun: Within your family, you are the entertainer! Your family may be quite cheerful, loud, and outgoing people who just love having child-like fun. The nicer and comfier your home, you better you feel about yourself. With age, you gain more confidence to entertain those around you without feeling insecure.
Moon: You’re curious to know your ancestry as far back as you can possibly go. Very close to your family, you never stray far from them for long. You’re attached to your family’s traditions and will likely pass them down. Much of your life is spent with your family members and your partner must understand this.
Mercury: Though it may or may not be far, you move frequently. You find it difficult to make meaningful relationships with many family members. You may go to every family function, but always feel as if something is missing between you and them. The older you get, the more curious you become.
Venus: You need to have security and solidity in your home life to be happy. Something large, giving you plenty of space, and of good value is important for your home. You’re huge on giving great gifts to your family members. It is important that wherever you live, you have an outdoor space to ground yourself.
Mars: You often have to take charge of many things within your family or at home. You can be pushy with them, however, and unwilling to compromise. The older you get, the more energy you seem to have for your family. You create many family activities and stay quite youthful and fun no matter your age.
Jupiter: You want a spacious home and an even larger family OR you grew up in a big family. Your family is a huge priority and you want nothing but the best for them. Making serious efforts to form close bonds with them, you’re rewarded in your older life with wealth in every possible way!
Saturn: With your family, you take on a lot of responsibility, even when you don’t have to. As the glue that holds everything together, you have a practical approach to home life. You don’t grow very attached to your family until you’re much older in life and it took a lot of maturity to get you there.
Uranus: You just can’t help but want a non-conventional home. Likely not very interested in having a “normal” family in the suburbs life, you may not easily settle. You will, however, have emotional bonds with some members. It is you who brings originality and creativity to your family members.
Neptune: The state of your well-being has a lot to do with your family’s status. You have very strong ties to them emotionally. Depending on whether you have a family to support you in your decisions, home is your safe space. You can be idealistic, however, and must try and see them for the individuals they are, even when you struggle.
Pluto: You don’t talk about your family or home life outside of them. You keep home a private matter. Intense relationships within your family don’t mean you don’t always fiercely protect and defend them. You discover all of their secrets and are the dominant personality among them.
From Within the Labyrinth,
-Lakin