"民用建筑住宅建设" can be translated into English as "residential construction of civil buildings" or more naturally as "residential building construction (for civilian use)".
Here, "residential" refers to something related to housing or living quarters, "construction" means the act or process of building, and "civil buildings" or the phrase in parentheses clarifies that these are buildings intended for civilian (non-military, non-industrial) use, though in the context of residential construction, the civilian aspect is often implied and may be omitted for brevity, resulting in just "residential building construction".