Kahouna was in use until about 1960 and was added to the National Register of Historic Places in 1973,[2] after members of the surrounding community raised concerns that it would be destroyed by development.

[3] The Kahaluu Taro Lo'i Historic District was also added to the National Register at that time.

The inner and outer faces of the original wall were of stacked stone, with gravel, coral rubble, and soil as fillers between them.

[2] Like its larger counterparts at Moliʻi and Heʻeia, Kahouna Fishpond is now private property.

There is a wedding chapel at one end and a pavilion and garden area at the other, each leased to different vendors.