Piotr and Dorota Warczak have listed for sale a two-bedroom, 1.5-bath home at 10023 11th Ave. N.W. in Bitter Lake for $429,950.

The Warczaks paid $268,500 for the property in Jan. 2004. The 1,360-square-foot house was built in 1950 in the Mikkelsens E L neighborhood. Richard Nimmer of Windermere Real Estate/Northwest Inc. is the listing agent for the home.

Mr. Warczak is a senior application developer at SXC Health Solutions Corp., a company that provides services to the pharmacy industry.

He previously worked with B-Line LLC as a senior and lead application developer. Before that, he was a senior software engineer at Zynchros Inc.

He attended the University of Washington.

According to BlockShopper.com, there have been 124 home sales in Bitter Lake during the past 12 months, with a median sales price of $354,500.

Address: 10023 11th Avenue NW
Buyer(s): Dorota Warczak and Piotr Warczak
Seller(s): John M Schwinberg
Sale date: Jan. 26, 2004