Newcastle Real Estate
Newcastle is a small city between Bellevue and Renton on the slopes of Cougar Mountain, with trail access into Cougar Mountain Regional Wildland Park, a golf course with views of Lake Washington, and quick access to I 405.
Newcastle's median single family sale price was $1.73 million for July to September 2026, down 2.8% from the same months last year. 40 single family homes sold (18.4% fewer than a year ago), and the median home spent 29 days on the market.
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Homes for sale in Newcastle
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Listing information is provided through IDX from Northwest MLS and is deemed reliable but not guaranteed. Listing data last updated October 13, 2026.
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