 The term "condemnation" is used to describe the formal act of exercising this power to transfer title or some lesser interest in the subject property.The constitutionally required "just compensation" in partial takings is usually measured by fair market value of the part taken, plus severance damages (the diminution in value of the property retained by the owner [remainder] when only a part of the subject property is taken).Where a partial taking provides economic benefits specific to the remainder, those must be deducted, typically from severance damages.