ECOHOUSE CONCEPTS IN THE LANGKIE JIKU SORABI TRADITIONAL HOUSE, TIDORE KEPULAUAN, NORTH MALUKU

Abstract

The Langkie Jiku Sorabi traditional house in Tidore Kepulauan, North Maluku, Indonesia, represents indigenous architectural wisdom through ecohouse principles adapted to tropical climates. This research investigates the application of ecohouse concepts across key architectural elements spatial organization, building orientation, dimensional systems, drainage infrastructure, and waste management practices to evaluate their potential as sustainable models for modern architecture in eastern Indonesia. Employing a qualitative descriptive methodology, data were gathered through direct field observation, comprehensive literature review, and unstructured interviews with the Sowohi adat leader in Gurabunga Village. The analysis emphasizes environmentally responsive features, such as locally sourced materials and time-honored construction techniques that minimize ecological impact. Results demonstrate a sophisticated spatial layout comprising five functional zones (hajatan reception hall, jamuan guest area, SouPuji ritual chamber, and sleeping quarters) exhibiting hierarchical privacy gradations. The southwest-northeast orientation maximizes natural daylight penetration and cross-ventilation, substantially reducing reliance on artificial lighting and mechanical cooling. Building dimensions of 13.75 m × 9 m employ anthropometric measurements (depa nau for males, depa faya for females), symbolizing patriarchal cosmology via differentiated floor elevations that denote spatial hierarchy and cultural significance. Construction utilizes bamboo and timber treated through seawater immersion and selective lunar-phase harvesting, enhancing durability against pests and decay. Complementary natural stone drainage prevents erosion, while organic waste is systematically converted to fertilizer, exemplifying closed-loop resource management. The Langkie Jiku Sorabi exemplifies vernacular ecohouse efficiency, providing actionable insights for integrating cultural preservation with environmental sustainability in contemporary tropical architecture.