The purpose of this study is to examine the construction industry of Korea from the 1920s to the 1930s by analyzing activities of construction-contractors trying to overcome the recession of the construction industry and intensified competition in the industry. In this paper, I looked at the activities of Hanazono Sakichi as concrete examples. First of all, with the strategy of the vertical integration, by manufacturing and selling building materials, Hanazono Sakichi expanded his company and the scope of contract business. The second, he attempted to diversify related projects. Through related diversification, he seemed to have earned not only land management profit but also advantages from related construction. These aspects were not only seen by Hanazono’s activities but also by other contractors’. On the other hand, a few contractors have taken over a trust company to secure the funds for land management. Attempts to maximize personal interests through the expansion and diversification of contractors' business can be seen as overcoming the pre-1920s environment, where almost construct works were ordered under the government, and creating opportunities for the private sector to work and make profit by themselves. In the end, it can be mentioned that ‘the contractor’ established ‘the construction industry’ through this process.

Abstract
1. 서 론
2. 1910-1920년대 초반까지의 청부업
    2-1. 민영공사의 증가
    2-2. 건축 자재 생산 환경의 변화
    2-3. 청부공사 수주의 경향
3. 청부업자 하나조노 사키치의 다양한 활동
    3-1. 토목건축청부활동과 건축재료제조업
    3-2. 교외지 개발과 토지경영
    3-3. 신탁회사 인수 및 운영
4. 1920-30년대 청부업의 변화
    4-1. 청부업자의 건축재료 제작과 판매
    4-2. 청부업자의 교외주택지 개발
    4-3. 청부업자의 신탁업 운영과 한계
5. 결 론
참고문헌

• 이수연(서울대학교 건축학과) | Lee Soo-Neon
• 전봉희(서울대학교 건축학과) | Jeon Bong-Hee Corresponding Author