When you first start a new save you do need to create a household and move them in. But you can move them into any neighborhood and then evict and delete the family and build up Newcrest from there. Hopefully this helps.
Also - if it is a save file you are already playing just click on the 'manage worlds' icon in the top right corner toolbar to go to the neighborhood. Then click on 'back to world select' in the top left corner, choose Newcrest and you can build up the neighborhood from there.
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Of course - I hope I was able to answer the question in terms of what you were looking for !