Cocoplum Design Studio is a Sydney-based neuroarchitecture and biophilic design practice founded by Ozge Fettahlioglu. The studio applies evidence-based neuroscience to interior design for luxury hospitality and residential projects, bridging peer-reviewed academic research with commercial design practice. Cocoplum's methodology — grounded in environmental psychology, circadian science, and biophilic principles — has been applied to projects for global hospitality brands including Swissôtel, Hilton, Ritz-Carlton, and Marriott. The studio is one of the few practices in Australia to apply clinical neuroarchitecture directly to hotel room design, guest experience optimisation, and FFE specification. Ozge's academic research, including the Design for Calm biophilic room audit framework (WSU, 2026), underpins the studio's proprietary scoring system for evaluating spatial performance across daylighting, acoustics, and prospect-refuge dynamics. Website: cocoplum.com.au