As most grants, home owner grants are government grants issued to help people with their first home. They are also referred to as first home owner grants since they are intended for the purchase of the first home only.
The purpose of the first home owner grant is to help reduce the amount of residential property tax that the citizens pay. Everyone who owns a house or a part of a home can apply for the grant. This includes anyone who is on the title of the property with you.
To be eligible for the grant you need to be at least 18 years of age, a private home owner and not a company, never had a first home owner grant before, and that you lived at your house for more than 6 months.
On special circumstance, people under 18 can also get the grant, if they are the primary care taker of younger siblings, even if they live in the house less than 6 months.
You can check you eligibility in here: Eligibility requirements for the first home owner grant.