What the family shrinking era requires of nLDK type house: Focusing on the tendency for families to share the dwelling space and family members not living together

2023 Fiscal Year Final Research Report

• Project/Area Number: 20K04851
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 23030:Architectural planning and city planning-related
• Research Institution: Osaka Metropolitan University (2022-2023); Osaka City University (2020-2021)
• Principal Investigator: KOITO AKIKO 大阪公立大学, 大学院生活科学研究科, 教授 (90257840)
• Co-Investigator(Kenkyū-buntansha): 王 飛雪 大阪公立大学, 大学院生活科学研究科, 客員研究員 (30833074) ; 川田 菜穂子 大分大学, 教育学部, 准教授 (90608267)
• Project Period (FY): 2020-04-01 – 2024-03-31
• Keywords: 縮小家族 / 住み方 / nLDK / 住要求 / 専用スペース / 移住 / Ｕターン

Outline of Final Research Achievements

This study examined the gap between the nLDK housing, which became the standard model in postwar Japan, and the housing requirements of modern families, and explored issues in housing planning, targeting three household types that represent modern shrinking families：1)couple households after children become independent, 2)Single adult households living with parents, 3)Parent-child households with children of junior high school age or older.
The house space did not meet the demands of husbands, wives, and adult children for their own space, and on the other hand, it was confirmed that there was a tendency for family members to share the use of common dwelling spaces. In addition, a survey of migrant households revealed a tendency for shrinking families to connect with non-resident families by living nearby.

Free Research Field

住生活学

Academic Significance and Societal Importance of the Research Achievements

欧米住宅を模倣し、近代核家族の器として戦後のマスハウジング時代にモデル化されたｎLDK住宅が、多様化し、かつ縮小する現代家族の住み方にいかに対応していくべきかの解明が求められている。本研究が、複数の縮小世帯型を通して、住宅における専用スペース要求と住み方の共用傾向の双方の視点から、「家族縮小時代がnLDK住宅に求めるもの」に迫ったことは、研究分野に加えて、変化への対応を迫られている住宅業界にも重要な知見を提供したと考える。