Speaking on the sale, the asset managers said the strong sale price reflected "not only the inherent value of the properties" but also the "enhanced income" through the firm's asset management. 

Sigma has been involved several non-core asset disposals for Oaktree, including numerous drive-thru restaurants, coffee pods and surplus lands. 

The company has also managed Gateway Retail Park in Galway, Decathlon's first major store outside of Dublin, the opening of two Harvey Norman stores in Sligo and Galway, and five new Jysk stores.

It also said rent rolls across the portfolio have risen by over 40% since Sigma's acquisition.

Marcus Wren, Co-Founder and Managing Director of Sigma Retail Partners, said, “As we conclude this chapter, we would like to extend our thanks to Oaktree for their trust and partnership over the past 10 years. 

"We look forward to seeing how the new owners will build upon the strong foundation that has been established across this excellent portfolio of eight retail parks. 

"The sale of this portfolio is a testament to the value of a strategic, hands-on approach to asset management in collaboration with Oaktree’s wider professional team. We are excited about the future opportunities that lie ahead for Sigma and indeed the retail sector as a whole in Ireland.”