In 1926, the Santa Monica Mountain Park Company sold the block closest to Sunset on Mandeville to the L.A.A.C as an extension of its Riviera property and sold most of Lower Mandeville, from Mandeville Lane to Chalon Road, to Garden Foundation, Inc. To encourage sales of the newly subdivided land, Garden Foundation designed and built an elaborate botanical garden with plantings from all over the world, many of which are still in evidence. On the slopes surrounding this garden, they hoped to develop and sell homes. Movie stars dedicated many of the special plantings with commemorative plaques (some of which are still in existence). Two ponds were also built, one of which surrounded the Japanese house at 1900 Mandeville Canyon Road. The second pond was adjacent to the property at 1888 Mandeville Canyon Road.