The purpose of this study is to understand the architectural changes that occurred in the main space of Deoksugung Palace based on the 『Deoksugung Wonan』. In the 1910s, constructions in the Deokhongjeon area and Hamnyeongjeon area caused a change in the main space of Deoksugung Palace, which is similar to the change in the central space of Changdeokgung Palace. In both palaces, the space composition, architectural structure, construction equipment, and architectural design of the palace were changed due to the changed architectural organization and construction system.

Abstract
1. 서 론
    1-1. 연구배경 및 선행연구
    1-2. 주요 사료
    1-3. 연구목적 및 방법
2. 1910년대 덕홍전 영역 공사
    2-1. ｢덕수궁원안｣ 덕홍전 영역 조사 내용
    2-2. 1910년대 덕홍전 영역 주요 공사 내용
    2-3. ｢덕수궁평면도｣와 1910년대 덕홍전 영역 현황 비교
3. 1910년대 함녕전 영역 공사
    3-1. ｢덕수궁원안｣ 함녕전 영역 조사 내용
    3-2. 1910년대 함녕전 영역 주요 공사 내용
    3-3. ｢덕수궁평면도｣와 1910년대 함녕전 영역 현황 비교
4. 1910년대 덕수궁 중심 공간의 변화 특징
    4-1. 공간 구성의 특징
    4-2. 지붕가구 구조의 특징
    4-3. 건축 재료 및 의장적 특징
5. 결 론
참고문헌

• 서영옥(명지대학교 건축학과 석사과정) | Su Young-Ok Corresponding Author
• 김왕직(명지대학교 건축학과 교수) | Kim Wang-Jik