AJR will redevelop 36 rowhomes for private ownership on the 6200 blocks of Osage Avenue and Pine Street in the Cobbs Creek section of West Philadelphia. Construction is expected to start later this year and will take 18 to 24 months to complete. The total cost of the project is $3.2 million, the authority said. The developers will be required to contribute 1 percent of the project's cost to a public work of art.