Imagine you have a big playing ground where you can play with your friends. Now, imagine that a lot of different families want to live near this playing ground so they can play with their kids too. So, a housing estate is when someone decides to build a bunch of houses on this land near the playing ground so that all the families can have their own place to live.
The houses are usually built in rows, like a big group of houses together. There may also be some apartments or flats where people live in one big building instead of a small house. Sometimes, the people living in the houses share a garden or a playground for their children to play in.
The housing estate might also have some shops, like a supermarket or a corner store, so that everyone living there can buy their everyday necessities nearby.
Overall, a housing estate is when a bunch of houses are built together in one place, usually in rows or buildings, so that many families can live close to each other and enjoy shared facilities.