From $909,990
Model homeBuilder incentives
Mainstay at River Islands · Mountain House, CA
4–6 bd · 4–5 ba · 3,643 sqft
Model homeBuilder incentives
From $909,990
Base price
Mainstay at River Islands · Mountain House, CA
- 4–6 beds
- 4–5 baths
- 2 cars garage
- 3,643 sqft
- 2 stories
- House
Video tour by STAR REAL ESTATE
Published Aug 20, 2026
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Information was compiled from the video and its description on Nov 5, 2026 and may have changed. Confirm price, availability and features with the agent or builder.
Incentives mentioned
3.99% interest rate promo
Features · Plan 3
- High ceilings
- Lakefront
- Gen suite