someone who owns a home
"As a first-time homeowner, she was excited to finally put her name on the deed of her new house."
Someone who owns a house
"The new homeowner proudly hung their flag on the front porch to welcome neighbors."
The word homeowner is a straightforward combination of the words home and owner that emerged to describe someone who owns their residence. It entered English as a practical way to distinguish property owners from tenants without needing more complex phrasing.