Born 1871 in Germany, John Sedler immigrated and became a naturalized U.S. citizen in 1896.  He purchased this property in 1910 and was a merchant, owner of Owl Drug store (and salon depending on era).  1912 advertisements for the store in the Arizona Republican bragged "free motorcycle delivery."  A map by O.A. Turney of Phoenix shows "Sedler's Addition" bounded by 12th to 13th Street and Roosevelt to Diamond Streets.  Built in 1912, John Sedler's house was set on 5 acres and looking out on alfalfa fields to the south of Roosevelt Street.  "We stuck out like a sore thumb" said John Sedler's daughter, "no sidewalks, nothing."  The house occupies the northeast corner of 12th Street & Roosevelt.

Architecturally and historically it is significant by its age and massive proud manor.  The house draws directly from the "Bungalow Style" while using detailing more common to Colonial or Mission, blending into a Territorial vernacular developed in this region.  This blend of styles and its exceptional size relative to the "Bungalow Style" (typically one story) makes the building architecturally significant.  The house originally used a solar hot water system visible on the roof in the adjacent picture, (1929, daughter & suitor).  The Sedler's resided there until 1948, when Earl Brown and his family made it their home.  In 1971, Alwun House founders purchased the dilapidated property and began their rehab & retrofit efforts.

The Sedler House, aka Alwun House was placed on the Arizona State Historic Preservation Office's Inventory of Historic Properties, on May 11, 1993; making the house eligible for National Historic Registration,  On Feburary 9, 2005 the City of Phoenix placed the Sedler House on it's list of registered historic properties for it's individual significance.
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