"household rule" is correct and usable in written English.
You can use it when referring to a rule imposed by a household authority, such as a parent or guardian. For example, "The household rule is that all electronics must be turned off at 9pm."
It was common for Christopher Hitchens or Salman Rushdie to pop round for dinner "Never be boring," was the only household rule.
He never returned to New York in the 24 years he had left to live, and a household rule banned the Titanic from mention.
Early on their parents established one household rule: If the sisters bickered over anything — toys, who said what — they had to resolve the argument themselves.
The fifth of seven children, Mr. DeRubbio, a Brooklyn firefighter, was famous in the family for his countless ways of getting around the household rule against profanity and for the zany nicknames he gave out.
Plus, you have to sign away two years of your life to AT&T and it seems there is a limit one per household rule.
Make it a household rule that bedtime is reserved for talks such as "the best part of my day was... .. Set up a specific "talk time" during the day for discussions focused around anything troubling your child.
Start by setting limits and household rules.
She found counseling for the children and imposed household rules, and they learned to live together.
And many parents, myself included, are trying to assess what all of that means for their own household rules.
YEARS ago, I instituted a series of household rules that, I remind my children, are really for their own good.
And she has often teased her daughter, Michelle Obama, and the president-elect about their household rules for her granddaughters.
