This Old Westbury mansion went on the market in September...

This Old Westbury mansion went on the market in September 2014 for $9.49 million and was built by Thomas Hastings, the architect for the New York Public Library. It is one of the highest-taxed properties in Nassau County. Credit: Douglas Elliman Real Estate

An Old Westbury mansion built by Thomas Hastings — the architect for the New York Public Library — is on the market for $9.49 million.

Hastings was the original owner of the 1913 home, says Dalia Elison, listing agent for the house with Douglas Elliman Real Estate.

The 10-bedroom home contains original murals, including one depicting a sky on a ceiling of the breakfast room, Elison says, adding that the house reminds her of a Newport, Rhode Island, mansion.

“You can really see this house in those castles,” she says.

There’s an elevator, main kitchen and service kitchen. The style of the home is a combination of French, English and Italian styles with marble columns, and the dining room has paneling that dates back to 18th century England.

The estate includes a pool and three guest cottages.

SUBSCRIBE

Unlimited Digital AccessOnly 25¢for 6 months

ACT NOWSALE ENDS SOON | CANCEL ANYTIME