You and your family must comply with all visa conditions and Australian laws.
If you were nominated for this visa by a State or Territory government
You must live, study and work in regional and low population-growth metropolitan area and comply with any residential conditions specified by the State or Territory government in your nomination.
If you later apply for a permanent residence Skilled-Regional visa (subclass 887), you will need to prove that you have spent the specified time in a regional and low population-growth metropolitan area.
If you were sponsored for this visa by a family member
You must live, study and work in a designated area. If you plan to apply for permanent residence Skilled-Regional visa (subclass 887), you will need to prove that you have spent the specified time in a designated area.
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由于是亲属担保,所以看下半部分 You must live, study and work in a designated area.
另外刚才发现designated area 页面第一句话
If you are applying for a Skilled – Regional Sponsored (Provisional) visa, and you are being sponsored by an eligible relative, your sponsor must be usually a resident in one of the following designated areas:
这个加上之前签证页上就是,
担保人和被担保人都要住在 designated area。 起码是常住 must be usually a resident。
至于是不是一个地方,不清楚。没发现具体说明。