The 330-unit Rock Hill Road apartment project planned by developer O'Neill Properties Group in Bala Cynwyd is up for sale.

Kevin Flynn, president of the Flynn Co., a brokerage and investment firm, said in an interview this month that he was marketing the project at 131 and 151 Rock Hill Rd. on behalf of its current owner, Alexander Street LLC.

The site has been cleared and is ready for a new buyer to begin construction under zoning and plan approvals obtained by O'Neill, Flynn said.