Mercer Island Mega-Mansion Lists for $19.5 Million With Built-In Neighbors

A newly finished waterfront estate on Mercer Island has hit the market at $19.5 million, and the sellers are offering more than a high-end house. They are pitching themselves as the kind of neighbors who will still be on the street, ready to socialize. The five-bedroom, entertainer-focused home was completed this year by local design-builder MacPherson Construction & Design and includes a wine room, a two-tier theater and sweeping Lake Washington views. Roger and Nancy MacPherson told a local TV crew they would like the next owners to plug right into the neighborhood’s social life.

Big price, big views

The property at 5330 Butterworth Road comes in at roughly 7,840 square feet and is set up with five bedrooms, six bathrooms and about 121 feet of no-bank shoreline. Outside, there is a heated covered patio, spa, putting green and private dock. Indoors, the house features vaulted wood ceilings, a chef’s kitchen with a butler’s pantry and a wine room sized for serious collectors, according to the Windermere listing.

Sellers say they’ll be neighbors

Roger and Nancy MacPherson have leaned into the home’s social personality. They told a TV crew that “everyone is in the kitchen. always.” and added that they “want to go play tennis with them. we want them to come over, have a glass of wine,” framing the sale as an invitation to join an existing circle of friends. Roger also joked that a walk-in shower had “once been packed with 17 people,” a detail that underscores how much the layout is geared toward entertaining, as highlighted on King5.

Builder with Eastside pedigree

MacPherson Construction & Design, founded in 1983, notes on its website that it has completed more than 180 waterfront homes around the Eastside. The company says that long track record shapes its approach to waterfront building and finishes. The firm, which lists Roger MacPherson as president, showcases a portfolio of past lakefront projects that speaks to a long-standing presence in high-end residential work, per MacPherson Construction & Design…

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