Infrastructure development seems appealing. However, few micro studies investigated the effect and channel of physical infrastructure on household's living standards. We addressed these issues using road infrastructure in kilometers on Nigeria's panel data. Infrastructure development measured as stress-free access to road is found to have significant direct effect on "within" households' well-being. However, the results for the isolated and non-isolated households in the entire economy and conflict-free zones are the same based on distance-quartile. In contrast, the conflict-prone zone's result is different and contrariwise. But, these outcomes suggested that not-too-distant households are better off, although from an unfamiliar viewpoint.