For those addicted to open houses, the ultimate snoop fest is now here. It's the Grand Tour of Homes, courtesy of the Master Builders Association...

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For those addicted to open houses, the ultimate snoop fest is now here. It’s the Grand Tour of Homes, courtesy of the Master Builders Association of King and Snohomish counties.

Visitors can view 105 homes, condos and townhomes ranging in price from $140,000 to $1.9 million.

The homes are scattered throughout King and Snohomish counties, with more than 60 boasting Built Green certification, which requires builders to meet environmental standards that exceed local building codes.

The tour is free, though there is a $5 suggested donation to visit two specialty homes: the Showcase Home and the Built Green Showcase Home. The former, Medina Lodge in Fall City, includes a hidden wing with a room and full bath, while the Built Green home in the Renton Highlands features windows designed to capture solar heat, low-flow plumbing and Energy Star appliances.

Free tour guidebooks are available at QFC stores in King and Snohomish counties.

The tour is open noon-6 p.m. Thursdays-Sundays, until Oct. 15. For details, see www.masterbuildersinfo.com.

Nicole Tsong: 206-464-2150 or ntsong@seattletimes.com