If your home is small and it is not enough for you, then you may change home or try to extend your existing home. I think second option is a better one for few people who do not want to leave their loved home.
Extending existing home is a popular alternative. You can get a proper lighting and space in your home, if extension of home is done in a proper and planned way. Planning is important for any house extension. Though you have available space, some local planning regulations may restrict you to extend your home. So, it is better to have some alternative plans. And you must take permission from local government to extend your house.
Many people can find many ways to increase the space within their home, which is available for them. Living space is turned by clever designers into a space which is more than adequate for the family members in home. A room can be built if you have space in front or back side of your home.
If you have a large living room or bed room then you can divide into two rooms then that extra room will be useful to children or older people as a bedroom.
Patios and decks can be built to increase the space at home. You can use such areas for dinner parties or social functions. So, you can utilize such place in a proper way.
You need to choose a best architect to plan about extensions of the home. They give a correct plan to extend the home in best way.
So in this way, you can extend the home. But it is important that it should be in proper way and you should have a plan before extending your home.