In a landmark deal for the South Shore luxury real estate market, 21 River Lane in Duxbury has sold for $8,250,000 — the second-highest residential sale in the town over the last 20 years and the highest since 2019, according to MLS data.

(Photo by Jack Vatcher)

Listed by Beth Dickerson of Gibson Sotheby’s International Realty in March, the custom-built waterfront estate represents a rare example of new construction breaking into the upper echelon of Duxbury’s historically tight luxury market, Dickerson told Boston.com in an interview.

(Photo by Michael D’Amore)

“This is the first new construction home on the water that has sold, and has broken records because of the fact that someone doesn’t have to go in there and tear it apart,” she said.

Designed by Maribeth Brostowski of Virian

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