Newcastle market snapshot
Over the trailing twelve months, the median Newcastle home sold for about $1,600,000 — down 14.0% from a year earlier. Homes here typically went under contract in about 14 days at roughly 100.0% of list price (around $586/sq ft), reflecting a market easing from its peak toward balance. These are rolling 12-month figures for the Newcastle market (NWMLS, June 2026).
About Newcastle
Newcastle is a smaller city on the slopes of Cougar Mountain between Bellevue and Renton, incorporated in 1994. Its coal-mining past is now parkland, and much of its housing is newer hillside development with territorial and, in places, lake or valley views.
Housing & homes
Housing skews toward newer single-family construction on hillside lots, much of it built from the 1990s onward, with some view-oriented custom homes. Attached housing is limited relative to neighboring cities.
Local conditions to know
Newcastle's Cougar Mountain setting brings steep-slope considerations and, notably, coal-mine hazard areas tied to the region's 19th-century mining history — worth geotechnical due diligence on affected parcels. Coal Creek runs through the area. The city is largely car-oriented, with I-405 access nearby.
Getting around & local texture
Anchors include Cougar Mountain Regional Wildland Park (former coal-mining lands, now trails), the Coal Creek natural area, and Lake Boren Park. Newcastle is served by more than one school district depending on location (generally the Renton and Issaquah districts), so confirm the attendance area by address.
What buyers & sellers weigh in Newcastle
- Coal-mine hazard due diligence on parcels tied to historic Cougar Mountain mining.
- Steep-slope and geotechnical review for hillside and view lots.
- School district varies by address — confirm before you commit.
- Newer, view-oriented stock that prices around outlook and elevation.
- Car-oriented commuting via I-405 to Bellevue and Renton.
- Limited attached-housing options compared with neighboring cities.
What makes Newcastle distinct
- Coal-mine hazard zones from the Cougar Mountain mining legacy — a due-diligence issue few nearby cities share.
- Direct access to Cougar Mountain Regional Wildland Park trails.
- A between-Bellevue-and-Renton location with hillside views.
- A predominantly newer, view-oriented housing stock.
- A split-school-district footprint that shapes address-level choices.
Services in Newcastle
Newcastle real estate FAQ
What is Newcastle known for?
Its Cougar Mountain setting, newer hillside homes with views, and a coal-mining history now preserved as regional parkland.
What is the coal-mine hazard concern?
Parts of the Cougar Mountain area were historically mined, so some parcels fall in coal-mine hazard areas that warrant geotechnical review.
Which school district serves Newcastle?
It varies by location — generally the Renton and Issaquah districts. Confirm the attendance area by address.