Populated places without legal recognition are considered on a case-by-case basis in accordance with the GNG. Examples may include subdivisions, business parks, housing developments, informal regions of a state, unofficial neighborhoods, etc. – any of which could be considered notable on a case-by-case basis, given non-trivial coverage in multiple, independent reliable sources. If a Wikipedia article cannot be developed using known sources, information on the informal place should be included in the more general article on the legally-recognized populated place or administrative subdivision that contains it.
Disputed regions are generally considered case-by-case. Their notability for Wikipedia is independent of the validity of their claims. Sometimes it may be more appropriate to merge these articles to ones on a broader conflict or political movement, or to merge articles on multiple disputed names for the same region into one article.
Named natural features are often notable, provided information beyond statistics and coordinates is known to exist. This includes mountains, lakes, streams, islands, etc. The number of known sources should be considered to ensure there is verifiable content for an encyclopedic article. If a Wikipedia article cannot be developed using known sources, information on the feature should be included in a more general article on local geography. For example, a river island with no information available except the name and the location should probably be described in the article on the river.
Many artificial geographical features may be mentioned in plenty of reliable sources, but they may not necessarily be notable. The inclusion of a man-made geographical feature on maps or in directories is insufficient to establish topic notability.
Artificial geographical features that are officially assigned the status of cultural or national heritage or of any other protected status are inherently notable.
Buildings, including private residences and commercial developments can be notable as a result of their historic, social, economic, or architectural importance. They require significant coverage by reliable, third-party sources to establish notability.
Artificial features related to infrastructure (for example, bridges and dams) can be notable under Wikipedia's GNG. Where their notability is unclear, they generally redirect to more general articles or to a named natural feature that prompted their creation, e.g., to an article about the notable road it carries or the notable obstacle it spans.
^The definition of "legally recognized places" for notability purposes may vary from country to country. For example, in the United States, census tracts are defined by the government and they are typically inhabited, but they are generally not notable.