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$2,250,000

18 Nansen Summit
Lake Oswego, OR 97035

Single Family Residence|Sold 03/31/2026
5
Beds
5
Total Baths
4
Full Baths
1
Partial Bath
5,640
SqFt
$399
/SqFt
2025
Built
County:
Multnomah
Listing courtesy of Zach Foushee of Harnish Company Realtors (503) 780-5413
Listing courtesy of Zach Foushee of Harnish Company Realtors (503) 780-5413
Call Now: 1-503-577-3371
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1-503-577-3371
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Sitting atop the highest point in Lake Oswego lies “Summit 18,” a signature home in the 2025 Street of Dreams. Built by award-winning Elite Development PNW, this 5,640-square-foot residence captures commanding views from the top of Mount Sylvania—offering a rare blend of elevation, elegance, and design excellence. From the moment you arrive, it’s clear no detail was spared. Thoughtfully designed across three levels and connected by a custom elevator, Summit 18 features five bedrooms and four and a half baths, with a layout that balances grand scale with comfortable livability. The main level hosts a gourmet kitchen equipped with a built-in refrigerator, double ovens, gas range, and a statement island—all open to light-filled living spaces with high ceilings, wide-plank hardwood floors, and a sleek gas fireplace. Every surface and finish was chosen with intention. Upstairs, the primary suite provides a retreat-like experience with large picture windows, a spa-inspired bathroom with a soaking tub, heated tile floors, and a generous walk-in closet. Additional bedrooms offer flexibility for guests, home office, or multi-generational living. The lower level adds more room to entertain or unwind—ideal for a home theater, gym, or bonus space—with full bath access and seamless flow to the outdoors. Located in the desirable Mountain Park community, residents enjoy access to a private gym, lap pool, sport courts, and scenic trails. With a gently sloping lot, three-car garage, and panoramic views stretching over the city and surrounding hills, Summit 18 is more than just a home—it’s a statement of modern luxury at elevation.

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Listing Snapshot
Bedrooms 
5
Total Baths 
5
Full Baths 
4
Partial Baths 
1
Inside Area (SqFt) 
5,640 sqft
Lot Size 
0.33 Acres
Year Built 
2025
MLS® Number 
614618566
Status 
Sold
Property Tax 
$6,231.5
HOA/Condo/Coop Fees 
$612 Semi-Annually
Sq Ft Source 
N/A
Friends & Family
Recent Activity
3 months agoListing updated with changes from the MLS®
General Features
Acres 
0.33
Attached Garage 
Yes
Disclosures 
Exempt
Foundation 
Concrete Perimeter
Garage 
Yes
Garage Spaces 
3
Home Warranty 
Yes
Land Lease 
No
Parking 
Garage Door OpenerDrivewayOn StreetAttachedGarage
Parking Spaces 
3
Property Condition 
New Construction
Property Sub Type 
Single Family Residence
Security 
Security System Owned
Sewer 
Public Sewer
SqFt Total 
5640
Style 
NWContemporary
Water Source 
Public
Interior Features
Appliances 
OvenGas Water HeaterWasherDryerBuilt-In RangeBuilt-In RefrigeratorCooktopDishwasherDisposalDouble OvenMicrowaveRange HoodWine Cooler
Basement 
FullDaylight
Cooling 
Central Air
Fireplace 
Yes
Fireplace Features 
Gas
Fireplaces 
1
Flooring 
HardwoodTileWood
Heating 
Forced Air
Interior 
Kitchen IslandPantryVaulted Ceiling(s)ElevatorCentral VacuumHigh CeilingsSoaking TubSound System
Window Features 
Double Pane Windows
Bedroom 1 
Dimensions - 14x14Level - UpperDescription - _4thBedroom
Bedroom 2 
Dimensions - 17x17Level - MainDescription - _2ndBedroom
Bedroom 3 
Dimensions - 17x17Level - MainDescription - _3rdBedroom
Dining Room 
Dimensions - 15x16Level - MainDescription - DiningRoom
Family Room 
Description - FamilyRoom
Great Room 
Dimensions - 22x18Level - MainDescription - GreatRoom
Kitchen 
Dimensions - 16x22Level - MainDescription - Kitchen
Living Room 
Description - LivingRoom
Master Bedroom 
Dimensions - 18x17Level - UpperDescription - PrimaryBedroom
Media Room 
Dimensions - 17x17Level - LowerDescription - MediaRoom
Office 
Dimensions - 13x14Level - MainDescription - Office
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Exterior Features
Construction Details 
Stone
Exterior 
Built-in Barbecue
Fencing 
Fenced
Lot Features 
SlopedGentle Sloping
Patio And Porch 
CoveredDeckPatio
Roof 
Composition
View 
CityMountain(s)
Waterview 
CityMountain(s)
Windows/Doors 
Double Pane Windows
Community Features
Accessibility Features 
Accessible Elevator Installed
Association Amenities 
PoolTrashLandscaping
Association Dues 
612
Financing Terms Available 
CashConventional
HOA Fee Frequency 
Semi-Annually
MLS Area 
_147
Roads 
Paved
Schools
School District
Unknown
Elementary School
Stephenson
Middle School
Jackson
High School
Ida B Wells
Listing courtesy of Zach Foushee of Harnish Company Realtors (503) 780-5413



The content relating to real estate for sale on this website comes in part from the IDX program of the RMLS™ of Portland, Oregon. Real estate listings held by brokerage firms other than Harnish Company Realtors are marked with the RMLS™ logo, and detailed information about these properties includes the names of the listing brokers. Listing content is Copyright © 2026 RMLS™, Portland, Oregon. Some properties which appear for sale on this website may subsequently have sold or may no longer be available.

Last checked 2026-08-25 10:49 PM PDT.

All information provided is deemed reliable but is not guaranteed and should be independently verified
Neighborhood & Commute
Source: Walkscore
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