He built a three-room house and, in 1926, a small barn.

Source: https://www.journal-advocate.com/2023/03/29/sonnenberg-farm-latest-in-logan-county-to-earn-centennial-farm-designation/

It made quick work of mapping a three-room New York City apartment, but without LiDAR or cameras, it took a time to map a larger three-bedroom home.

Source: https://mashable.com/roundup/best-self-emptying-robot-vacuums

When the team builds them a house, they get a secure three-room structure that is fully insulated and has electricity.

Source: https://gazette.com/pikespeakcourier/church-makes-impact-in-mexico/article_44ff771c-e472-11ed-bcb1-73bebcea6854.html