The estimated rent range for 1226 Main St is $2,950–$3,500/month, in line with Waltham’s average for updated 2-bed, 2-bath single-families. Annual gross revenue potential falls between $35.4K and $42K. At the current $700K price, the payback period (gross) is roughly 16–20 years—fair for this submarket. Demand is steady, with low vacancy and slow, predictable rent growth. Features like a finished lower level (with ADU/in-law potential), central air, and a fenced yard make this listing competitive, but being a 2-bed may cap upside versus 3-bed comps.

Consider minor upgrades to maximize income: add a legal ADU or convert the lower level to a rentable suite, which is in high demand. Highlight turnkey features—modern kitchen, in-law potential, and proximity to shops and transit—for rental listings or sale. If selling, market as a flexible property ideal for multi-generational living or rental investors. Address any deferred maintenance proactively to justify top-of-market rents.