The Influence of Intellectual Capital to Architect’s Work Performance Through Leadership and Motivation in Malang City-Indonesia

— This study has a purpose to describe the intellectual capital, leadership, motivation and workperformance owned by architects, and create certain analysis about: the influence of intellectual capital on leadership, the influence of intellectual capital on motivation, the influence of intellectual capital on architect's workperformance, the influence of leadership on architect's workperformance, the influence of motivation on architect's workperformance, the influence of intellectual capital on architect's workperformance through leadership, and the influence of intellectual capital on architect's workperformance through motivation. The population of this study were architects in Malang area who are members of Ikatan Arsitek Indonesia (IAI) as the professional association of architects, Ikatan Arsitek Indonesia from Malang area with 186 architects taken as samples by census. The analysis technique for this study were descriptive analysis and quantitative analysis. From the analysis result it showed that leadership mediates the influence of intellectual capital on architect's workperformance which means that intellectual capital can improve workperformance when leadership implementation carried out in a good way.