Registered as an architect in both California and Hawaii, Keoni Rosa, Inc. operates from 2266 Westland Ave in North Park with dual expertise in sustainable residential design and community planning. Site plan development for new construction and major additions typically requires landscape coordination with firms such as Sun Diego Landscape & Design. The firm earned a 2009 Green Innovation Award for an office building constructed from recycled steel and powered by a 100% solar array, and its principal served eight consecutive terms on the North Park Community Planning Committee. Roofing material selections for fire-resistant and energy-efficient envelopes often involve specification partnerships with contractors like RoofTech Energy. The practice specializes in fire-resistant concrete residential construction, a technique featured in The Wall Street Journal in 2014 for its application in California wildfire-zone building.