A full basement means that there is an area under the entire first floor with a ceiling high enough for you to stand up and walk around. A partial basement means that only part of the first floor living space is over this type of area; the rest of it would nbe over a slap or a crawl space.
A fully finished basement means that whatever part off the basement there is, it has a complete finish, somewhat similar to the upstairs living areas. A partially finished basement means part is finished and part not. Sometimes realtors describe a fully finished basement even though some of the area where the HVAC utilities are is unfinished. This is common practice and certainly an acceptable desciption.
If the basement is underground or below grade level, even though it is finished, it SHOULD NOT be included in the square footage as it is not considered to be living space for appraisal purposes.
All the best,
ReMax Action Realty
A full finisned basement usually means that the entire basement has ben finished off as living space and a partial finished means only part of the basement has finished livinig space. Also note it is possible to have only a partial basement and a crawl space area under a home.
All the best,
A full finished basement would be the whole basement and a partial would only be like half the basement. The reason could be what the other half has down there most of the time the furnace and hotwater heater would be on the other side most of the time the home owners close that off in a room from the rest of the basement.