Insights from LIXIL's Survey on Multi-Generational Homes in Japan

In the evolving landscape of familial cohabitation, the necessity and preference for multi-generational homes are becoming crucial topics of discussion in Japan. Recently, the LIXIL Housing Research Institute conducted an insightful survey targeting married men and women aged between their 20s and 40s, focusing on their experiences and intentions regarding living arrangements with parents.

Survey Overview

The survey included 400 participants—197 individuals living with their parents and 203 who reside separately. Conducted from February 16 to 22, 2026, it aimed to uncover perspectives related to the dynamics of multi-generational housing.

Key Findings

Future Intentions of Separate Households

The study revealed that among participants not living with their parents, a significant 34% expressed intentions to continue living separately, while 14.3% prefer to live nearby, and only 11.8% consider the possibility of cohabiting in the future. Additionally, only a small fraction (4.9%) indicated they would contemplate joint living arrangements solely in case of requiring parental care.

Satisfaction Levels of Cohabiting Families

Interestingly, among those living with their parents, satisfaction ratings were notably high, with over 80% expressing positive feelings towards their residing arrangements. Top reasons include support with household chores and childcare (39.6%), reduction of financial burdens (35.5%), and peace of mind during emergencies (35%). This showcases the benefits that cohabitation offers, balancing support and shared responsibilities among family members.

Attractions to Co-Living

For those residing separately, the attractions of living with parents encompass the comfort of emergency readiness (31%), the ease of casual interactions (28.1%), and the emotional fulfillment of supporting their parents (28.1%), indicating that familial bonds and support systems play a significant role in housing decisions.

Ideal Living Arrangements

When questioned about ideal living arrangements for multi-generational homes, an intriguing trend emerged. 56.8% of respondents favored a fully separated layout, whereas 41.8% preferred an entirely cohabiting setup. This reflects the complexity of modern family needs, where designs must cater to both shared spaces and privacy.

Concerns Raised

Despite the apparent benefits, participants voiced various concerns. Those currently living with parents highlighted differences in daily routines (23.4%) and the difficulty of entertaining guests (21.8%) as significant issues. Conversely, those living apart noted that lifestyle discrepancies (39.4%) and noise or activity level mismatches (20.7%) were their main worries.

Summary of Concerns and Attractions

- Current Separate Households:

- Future living intentions: 34% want to remain separate, 14.3% prefer living closer, 11.8% consider future cohabitation.

- Satisfaction in Cohabitation:

- 80.2% report being satisfied, with reasons centered on support and reduced costs.

- Concerns in Living Arrangements:

- Participants express issues regarding daily routine clashes and social dynamics.

Conclusion

As Japan navigates the challenges and benefits of multi-generational living, surveys like the one conducted by LIXIL provide vital insights. Understanding preferences, satisfaction rates, and the concerns of modern families can influence future housing trends and designs, particularly in promoting environments where families can thrive together while managing individual needs. This research serves as a guiding light to the future of home living, fostering better living standards and relationships among family members.

About LIXIL Housing Research Institute

The LIXIL Housing Research Institute, under the leadership of CEO Nobuhiko Kashima, is dedicated to transforming the living experience in Japan. With its roots embedded in manufacturing and retail of housing materials and functionalities, it consistently innovates to meet the needs of modern households. With plans to introduce new housing franchises and support structures, LIXIL also maintains a commitment to enhancing the quality of life within diverse family setups nationwide.