The tradition of blessing houses and many things dates back to ancient times. Many believers observe it to this day. However, this ritual has its own nuances.
Consecration of things and dwellings is a common and natural thing for the Orthodox. However, it should be noted right away that this is not the acquisition of a kind of "insurance" through prayers, as many believe. This is just a request to God to bless the use of new things for the benefit of people. Here we are talking more about spiritual benefits than material ones. Consecration of something means reading special prayers and sprinkling with holy water. Each believer can do this ritual independently. For the sanctification of things, there is a prayer "For the sanctification of every thing." It can be found in the prayer book. Its virtual version is here https://www.molitvoslov.com/text533.htm After reading it, you should sprinkle the thing with holy water. For the consecration of the car and apartment, there are special short rites of prayers. They are in the liturgical book - the missal. Some believers consecrate their homes and cars on their own. There is nothing sinful about it. To consecrate an apartment, you can pick up a bowl of holy water, a burning church candle and, if available, a censer with incense. When reading a prayer, one should go around all the rooms of the house and sprinkle the corners of the holy water. However, the consecration of a house by a priest is a completely different matter. In order to properly consecrate an apartment, you should come to any church and invite the priest home at a time convenient for him and you. Let this become not an ordinary matter, but a solemn event in the life of your family. It is best if all of its members are present at the consecration of the house. For the consecration of the car, you should come to church on it and contact the priest.