English: 625-627 First Avenue, across 1st Ave from Pioneer Square Park, Pioneer Square neighborhood, Seattle, Washington. Neither of these roughly century-old buildings has fared well over time (both have lost upper storeys and ornamentation). 625 is variously known as the K & R Building, Pioneer Office Equipment Building, or Emerald City Building. Originally 4 floors, It was built immediately after the great fire on the site of the 2-story C.F. Clapp building by prominent Seattle clothiers and developers Lazarus Kline & Samuel Rosenberg (the K & R) and is the only survivor of the multiple buildings they had built in and round Pioneer Square. Designed by Towle & Wilcox, it was Seattle's first building with a complete cast-iron front. The two large columns flanking the facade are original to this design.

627 is variously known as the Eden Musee Building, Silver Building/Hotel, Aronson Building, Totem Loans or Totem Pole Loans building. It was also built immediately after the fire, by the Gordon Hardware Company, as a near replica of their 3-story Italianate building that previously stood on the site, but with 2 additional floors. After Gordon Hardware's closure, the building's upper floors were occupied by the Stewart & Holmes Drug Co. with the ground floor later housing drug stores into the 1930s. The current facade is the remnant of an awkward remodeling in the 1910s that saw most of the building's original ornamentation erased. Both buildings were reduced to their current height after the 1949 earthquake.

For further information see Seattle Department of Neighborhoods [Summary for 625 1st AVE / Parcel ID 8591400060, Seattle Department of Neighborhoods and Summary for 627 1st AVE / Parcel ID 8591400055, Seattle Department of Neighborhoods.