Do I pay Section 1250 recapture on a home I've lived in for more than 5 years?

We purchased a duplex in 1986 and moved into one of the units in 2008.  If we sell our unit (or the entire building) do we owe recapture on the depreciation taken on this unit while in service?  I remember a rule about 5 years, but can't find mention of it, so maybe I'm wrong or it is not applicable anymore.  Thanks.