12125 434th Avenue SE · North Bend, WA 98045
Source: NWMLS · TEC Real Estate Inc. · Karin N Ayling #NWM2541212
About this home
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.
Location
Basics
- Property type
- Single Family Residence
- Style
- See Remarks
- Stories
- 2 stories
- Condition
- Very Good
- Year built
- 2012 (renovated 2021)
- Lot size
- 14,362 sq ft (0.33 acres)
- County
- King
- MLS #
- NWM2541212
Interior
- Heating
- 90%+ High Efficiency, Radiant, See Remarks
- Cooling
- None
- Flooring
- Ceramic Tile, Concrete, Hardwood, See Remarks, Carpet
- Appliances
- Dishwasher, Double Oven, Dryer, Microwave, Refrigerator, Stove(s)/Range(s), Tankless Water Heater, Washer
- Fireplace
- 2 · Gas, Wood Burning
- Interior features
- Bath Off Primary, Ceiling Fan(s), Dbl Pane/Storm Window, Fireplace, High Tech Cabling, Hot Tub/Spa, Pantry, Vaulted Ceiling(s), Walk-In Closet(s), Wet Bar, Wine/Beverage Refrigerator
- Entry level
- Main
Exterior & lot
- Exterior features
- Stone, Wood
- Roof
- Metal
- Foundation
- Poured Concrete
- Lot features
- Dead End Street, Paved
- Topography
- Level
- View
- River
- Waterfront
- Yes
Parking
- Parking spaces
- 3
- Garage
- Yes
- Covered spaces
- 3
- Parking features
- Detached Garage, RV Parking
Utilities
- Water
- Public
- Sewer
- Septic Tank
- Power
- Electric, Natural Gas, Wood
Community & fees
- Subdivision
- Mt Si
- Community features
- Trail(s)
- Property tax
- $17,071 (2026)
Transaction
- Listed on
- Jun 18, 2026
- Days on market
- 59
- Price per sq ft
- $962
- Listing terms
- Cash, Conventional
- Possession
- Closing
More homes nearby
Schools
School district: Snoqualmie Valley
- Elementary
- North Bend Elem
- Middle
- Twin Falls Mid
- High
- Mount Si High SchoolSchoolDigger 5 stars · Top 4% in WA

Listing provided courtesy of: TEC Real Estate Inc.
Listing agent: Karin N Ayling.
Based on information submitted to the MLS GRID as of —. All data is obtained from various sources and may not have been verified by broker or MLS GRID. Supplied Open House Information is subject to change without notice. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information. IDX information provided exclusively for consumers' personal, non-commercial use, and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Information is deemed reliable but not guaranteed.
Data last updated 2026-08-17.