Show post of current category before its children

I have a category-based template, everything works great, however, when you click on a category it will show posts of subcategories first if the publish date is newer. I just want the posts from the top or current category to be displayed first (or only if need be).

I can set a post to announcement and the top category post will show fine, but if I visit a child or grandchild category it will show the wrong(latest) post.

For example of parent/child/grandchild relationship.
Click on House brings up latest post instead of the ‘house’ post
> House:
> – Red House:
> Red House Price
> Red House Size
> – Green House
> Red House Price – Has latest post
> Red House Size

Can this be solved. Thank you for any insight.