Libby MacPhee Purchased Seattle Broadmoor Mansion

The luxury property in Seattle sold for $7.1 million following its previous acquisition for $7.5 million in 2019.

Updated on Oct. 14, 2026 in Residential

Libby MacPhee Purchased Seattle Broadmoor Mansion

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Libby MacPhee recently acquired a 7,100-square-foot estate in Seattle's Broadmoor neighborhood for $7.1 million. The transaction follows the implementation of a new 9.9 percent state income tax on high-earning households in Washington.

Why it matters

The sale highlights shifts in the Seattle luxury housing market as investors respond to the 9.9 percent state income tax enacted in May 2026 for those earning $1 million or more. Local market observers are tracking whether such legislative changes will continue to influence high-end real estate activity in the city.

The home at 2020 Parkside Drive East measures 7,100 square feet and features four bedrooms and six bathrooms. It includes a separate 900-square-foot apartment above a detached garage.

The players

Libby MacPhee

She is the buyer who recently acquired the luxury property in the Broadmoor neighborhood.

Acorn Trust

This entity was the seller of the Broadmoor estate.

Kim Knowles

She served as one of the brokers representing the seller in the transaction.

Brad Knowles

He served as one of the brokers representing the seller in the transaction.

Jeri Smith

She served as the real estate representative for the buyer.

The details

Acorn Trust sold the property to MacPhee after purchasing it in 2019 for $7.5 million. The deal was managed by brokers Kim Knowles and Brad Knowles, who represented the seller, and Jeri Smith, who represented the buyer.

The home was originally built in 2014.
Acorn Trust purchased the mansion for $7.5 million in 2019.
The state Millionaire's Tax legislation was signed in May 2026.
Libby MacPhee purchased the Broadmoor mansion in October 2026.

Culture Shift

This transaction reflects broader shifts in how high-net-worth individuals are managing assets following the implementation of Washington state's 9.9 percent income tax on households earning $1 million or more. The sale follows a pattern where market participants reassess high-value luxury real estate investments in response to significant state-level tax code changes.

Homebuyers in Seattle may find shifting inventory levels as owners of luxury properties respond to the new tax environment. Prospective residents should monitor how these tax-related inventory changes impact the availability of high-end homes in established neighborhoods like Broadmoor.

The takeaway

Large-scale real estate transactions continue to provide insight into how property owners react to significant changes in state taxation. Investors should carefully evaluate the long-term tax implications when considering the purchase or sale of high-value assets in Washington.