Sculpture House, Inc., was founded in 1971 by Todd E. Pendleton and John E. Pendleton.  It was located at 4224 Howard Avenue, Kensington, Maryland, on the industrial side of Kensington's Antique Row.  Originally in 1971 the artists started selling Todd E. Pendleton's art work on the National Mall in Washington, D.C., by the Lincoln Memorial.  Most sales consisted of small welded steel plaques and free standing welded steel sculpture from $10.00 to $75.00 and were signed by Todd E. Pendleton.  As a result of the exhibitions on the National Mall and exhibitions in numerous galleries, Todd E. Pendleton gained a large following of patrons, which resulted in many requests for welded steel sculpture commissions.  Therefore, Todd and John Pendleton decided to rent an old house for an art gallery on Howard Avenue in Kensington, Maryland, and named it Sculpture House to exhibit their work as well as the works of many other area artists.  Shortly after, they incorporated and it became Sculpture House, Inc.  The house on Howard Avenue also had outbuildings in the backyard that they used as a welding studio and medium storage.  The backyard was later turned into a sculpture garden displaying the welded steel sculptures of Todd E. Pendleton and John E. Pendleton.  Sculpture House, Inc., also hosted annual "Create Ins" of artists creating, displaying and selling their art work outside in the sculpture garden.  Sculpture House, Inc., also sponsored monthly group shows of artists in the area.   Permanent artists at the Sculpture House, Inc., besides Todd E. Pendleton and John E. Pendleton were Gerald Balance (plexiglass painting), Urs (pottery) and Sister Diona (sculptured pottery).  Due to uncontrollable circumstances Sculpture House, Inc., closed in 1979.   From 1979 to 1988, John E. Pendleton partnered with his father-in-law, Ray Smallwood, of Freestate Auctions, Inc., Rockville, Maryland, buying, restoring, selling as well as auctioning antiques and merchandise.

In 1988, John E. Pendleton opened Pendleton Galleries, Inc., Gaithersburg, Maryland, which was a fine art and antique gallery and an auction facility.  In 2011, the auction facility closed and Pendleton Galleries, Inc., is now an online gallery specializing in the art work of Todd E. Pendleton and John E. Pendleton formerly of Sculpture House, Inc., as well as fine antiques, art and collectibles.