Houston House, Category B listed building in Houston, Renfrewshire, Scotland.

Houston House is a substantial stone mansion with ivy-covered walls that incorporates medieval castle sections within its west wing. The building displays architectural elements from different periods, showing how it evolved and was added to over time.

The current building was constructed in 1872 on the foundations of Houston Castle, which had occupied the site for centuries before that. By incorporating stones from the earlier fortress into the new structure, it preserved elements from multiple historical periods.

The house is connected to the Houston family, who have been significant figures in this region for many generations and shaped Scottish building traditions. This family connection appears in the care taken with the structure and its design.

The building was converted into six separate residential units in 1994 while preserving its original structure, and it remains a private property today. It is best viewed from outside, though its ivy-covered walls and distinctive architectural features can be easily seen from the grounds.

The west wing contains actual stone elements from the original northern section of the medieval castle that once stood on this spot. This reuse of building materials was a practical way to incorporate older structures into new construction.