Karinyais a 40 lot mixed residential estate in Warriewood. The estate is located approximately 30 kilometres from the Sydney CBD. The subdivision includes construction of civil works (road & drainage, electrical, NBN, water & sewer) as well as bio- detention basin, Creek Rehabilitation and other water treatment facilities.
As part of stormwater quality management, Craig & Rhodes designed the bio-retention basin that drains into Narrabeen Creek. Northern Beaches Council required an additional 100yr ARI bypass to be incorporated into the stormwater network due to existing external upstream catchments.