Section 15-217-56 - Landscape and recreation space(a) All yards shall be landscaped with native or adapted plant species and/or hardscaped with permeable material.(b) Historic landscapes and exceptional trees as designated by the city and county of Honolulu shall be protected and preserved. In the case where historic landscapes and exceptional trees conflict with prescribed standards in the rules, the historic landscape or exceptional tree takes precedence.(c) Landscaping shall have an automatic irrigation system with a rain or moisture sensor.(d) Residential projects requiring a development permit shall provide fifty-five square feet of recreation space per dwelling unit. The required on-site recreation space, if provided outdoors, may be used to satisfy the open space requirement. [Eff NOV 11 2011 ] (Auth: HRS §§ 206E-4, 206E-5, 206E-7) (Imp: HRS §§ 206E-4, 206E-5, 206E-7)