Listing provided courtesy of TEC Real Estate Inc.NWMLSMLS# NWM2541212MLS Provider
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A true one-of-a-kind legacy property, this ultra-custom Timber Frame estate at the base of Mt. Si offers an unparalleled PNW lifestyle with low-bank Middle Fork River frontage perfect for kayaking, fly fishing, and summer tubing. Masterfully built with authentic mortise-and-tenon joinery, the 3,120 SF main home features a 4 old-growth cedar/metal door and polished concrete floors with in-floor hydronic radiant heat. Living spaces blend effortlessly with nature via an 8’x16’ collapsing slider in the great room and an 8’x14’ glass garage door in the chef's kitchen boasting a 60” Wolf range, Thermador fridge, and gorgeous quartz counters. Seamless entertaining flows from the dedicated theater room to a heated covered patio with Infratech heaters, a gas fireplace, and a built-in Weber grill. Unwind in the primary sanctuary featuring a private deck with unobstructed river views and a marble spa bath. Steps away, the massive 1,675 SF detached 3-car garage offers a lower workshop with built-in air lines, a half bath, second laundry set, plus a completely independent, fully appointed 800 SF luxury living space upstairs. Encompassed by irrigated grounds with automated lighting, an Artesian spa, and a 5’ rock crusher fire pit at the water's edge, this irreplaceable masterpiece delivers ultimate alpine charm near world-class hiking and mountain biking, all just minutes from town with an easy commute to Bellevue and Seattle.

Source: NWMLS, MLS#: NWM2541212

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  • Property Type
    Residential
  • Lot
    0.33 acres

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  • Median Age
    40
  • Population Density
    44
  • College Educated
    57%
  • Estimated Median Income
    $111,767
  • Estimated Total Home Owners
    4,560
  • Estimated Total Renters
    1,158
  • Owner / Renter Divide
    80% / 20%
  • Estimated Average Household Size
    3
  • Total Population
    15,174
  • Community data courtesy of LiveBy, Inc.

Owning this Home

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* All calculations are estimates and provided by Reliance Network, for informational purposes only. Actual amounts may vary. ** Assumes 6.50% APR, 20% down payment, and conventional 30-year fixed rate first mortgage. Rates cited are for instructional purposes only; current rates are subject to change at any time without notice. You should not make any decisions based simply on the information provided. Additional required amounts such as taxes, insurance, homeowner association dues, assessments, mortgage insurance premiums, flood insurance or other such required payments should also be considered. Contact your mortgage company for current rates and additional information. Any mortgage broker or insurance agent that may appear is independent and is not affiliated with, endorsed by, or provided by the MLS.

Life at 12125 434th Avenue SE


Schools


School data courtesy of LiveBy, Inc.
Ratings are based on a scale of 1-5, with 5 being the highest rating and 1 being the lowest rating. The schools displayed on this website are for informational purposes only and may not represent a complete or up-to-date list. School assignments are subject to change and should be verified directly with the local school district. Please contact the appropriate school district to confirm school zoning and enrollment eligibility for this property.

History

Date Event Value Agent
6/18/2026Source: NWMLS Added to Database
June 18, 2026