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$5,690,000
1 Day On Site

5454 194th Avenue SE
Issaquah, WA 98027

For Sale|Single Family Residence|Active
4
Beds
6
Total Baths
3
Full Baths
3
Partial Baths
7,057
SqFt
$806
/SqFt
1996
Built
Cumulative Days On Market:
2
Subdivision:
Cougar Mountain
County:
King
Courtesy of NWMLS
Listing courtesy of John A. Kritsonis of Windermere Real Estate/East
Call Now: 206-280-1911
Is this the listing for you? We can help make it yours.
206-280-1911
Upcoming Open Houses
Tue, Jun 9, 3:00 PM - 5:00 PM
5454 194th Avenue SE5454 194th Avenue SE5454 194th Avenue SE5454 194th Avenue SE
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Monthly Payment (Est.)

$25,960
Calculator powered by Showcase IDX, a Constellation1 Company. Copyright ©2026 Information is deemed reliable but not guaranteed.

Known affectionately as "Issaquah Castle," this singular estate crowns its own hilltop above the forest canopy, custom-built by original owner & never before offered to the public. Panoramic views of Lake Sammamish and the Cascades unfold from every angle, while a deep stand of trees and custom gate create a sense of seclusion that feels worlds away. Through a bird's eye view, beyond the estate's orchard is the Cougar Mountain Zoo with its incredible endangered species as a reminder of the beauty of the natural world. Inside this legacy estate, pointed arches, cathedral ceilings and marble & granite details throughout establish an interior of genuine architectural distinction. At the center, a 2-story great room is wrapped in glass, with a grand stone fireplace & presided over by a mezzanine balcony with a custom spiral staircase connecting the levels. Arched doorways lead to a formal dining room beneath a gilded chandelier. Spa-caliber bathrooms feature jetted tubs, stone vessel sinks & arched windows framing the treetops. Two ADA-accessible entries open to two self-contained floors, each designed for independent living with their own professional kitchens. A large capacity wine cellar & ample parking make this an unrivaled venue for grand entertaining. A soaring 60-foot tower completes this one-of-a-kind estate. The large lot offers potential for development. Just minutes from I-90, charming Issaquah downtown, premier shopping/dining in Bellevue & direct access to Seattle.

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Listing Snapshot
Price 
$5,690,000
Days On Site 
1 Day
Bedrooms 
4
Inside Area (SqFt) 
7,057 sqft
Total Baths 
6
Full Baths 
3
Partial Baths 
3
Lot Size 
1.6751 Acres
Year Built 
1996
MLS® Number 
2532178
Status 
Active
Property Tax 
$27,104.65
HOA/Condo/Coop Fees 
N/A
Sq Ft Source 
N/A
Friends & Family
Recent Activity
17 hours agoListing updated with changes from the MLS®
yesterdayListing first seen on site
General Features
Acres 
1.6751
Attached Garage 
Yes
Direction Faces 
Northeast
Garage 
Yes
Land Lease 
No
Parking 
DrivewayOff StreetAttachedRV Access/Parking
Parking Spaces 
27
Property Sub Type 
Single Family Residence
Security 
Security SystemSecurity Gate
SqFt Total 
7057
Utilities 
Cable AvailableSewer Connected
Water Source 
Public
Zoning 
SF-E
Interior Features
Appliances 
DishwasherDouble OvenDryerMicrowaveRefrigeratorDisposalWasher
Fireplace 
Yes
Fireplace Features 
GasWood Burning
Fireplaces 
2
Flooring 
GraniteMarbleStone
Heating 
ElectricNatural GasRadiant
Interior 
Walk-In Closet(s)PantrySaunaVaulted Ceiling(s)Wet Bar
Main Level Bedrooms 
1
Spa 
Yes
Bathroom Full 
Level - Lower
Bathroom Half 
Level - Lower
Bathroom Three Quarter 
Level - Main
Bedroom 
Level - Lower
Bonus Room 
Level - Lower
Den 
Level - Main
Dining Room 
Level - Main
Entry Hall 
Level - Main
Family Room 
Level - Lower
Great Room 
Level - Main
Kitchen 
Level - Lower
Master Bedroom 
Level - Main
Utility Room 
Level - Main
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Exterior Features
Construction Details 
StoneStucco
Exterior 
Garden
Fencing 
Fenced
Lot Features 
LevelWoodedPavedSecluded
Patio And Porch 
DeckPatio
Roof 
MetalTile
Spa 
Yes
View 
CityLakeMountain(s)Territorial
Waterview 
CityLakeMountain(s)Territorial
Community Features
Accessibility Features 
Therapeutic Whirlpool
Building Access 
Main
Financing Terms Available 
CashConventional
MLS Area 
500 - East Side/South of I-90
School District 
Issaquah
Schools
School District
Issaquah
Elementary School
Sunset Elem
Middle School
Issaquah Mid
High School
Issaquah High
Courtesy of NWMLS
Listing courtesy of John A. Kritsonis of Windermere Real Estate/East



Listing information is provided by Participants of the Northwest MLS. IDX information is provided exclusively for 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. Copyright 2026, Northwest MLS.
All data is obtained from various sources and may not have been verified by the 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.
Last checked: 2026-06-05 10:49 PM PDT

Neighborhood & Commute
Source: Walkscore
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