One is a single-family home in West Somerville on the market for $800,000, another is a condo with an asking price of $689,900, and the last is a Union Square single-family house going for $669,000: They're the ritziest—or most expensive, rather—Somerville homes having an open house this weekend.

Somerville Patch looked at NewEnglandMoves.com to see this weekend's open houses and zeroed in on the three homes that require the highest budgets.

Here they are:

70 Victoria Street
Price: $800,000

This single-family home in West Somerville has three bedrooms, two and half bathrooms and 2465 square feet. It features an open floor plan on the main floor, a private patio and a garden. Open house is Sunday form 11:30 a.m to 1:30 p.m.

56 Clyde St., unit 7
Price: $689,900

A condo in the heart of Somerville with Viking appliances, a floating glass panel staircase and a private patio. It has two bedrooms, three and a half bathrooms and 2025 square feet. Open house is Sunday from 12 p.m. to 2 p.m.

21 Vinal Ave.
Price: $669,000

A single-family home across the street from a park and near Union Square, this home has four bedrooms, two bathrooms and 2014 square feet. It also has side-by-side parking, a patio and garden. Open house is Sunday from 11:30 a.m. to 1 p.m.