The Collaborative International Dictionary of English v.0.48:

Householder \House"hold`er\, n.
   The master or head of a family; one who occupies a house with
   his family.
   [1913 Webster]

         Towns in which almost every householder was an English
         Protestant.                              --Macaulay.
   [1913 Webster]

   Compound householder. See Compound, a.
      [1913 Webster] housekeep

WordNet (r) 3.0 (2006):

householder
    n 1: someone who owns a home [syn: homeowner, householder]