Set on a private 1.5-acre estate in Portland’s coveted Sylvan Highlands, this exceptional 1948 mid-century modern residence is a rare architectural offering where timeless design meets breathtaking natural beauty. Encompassing 6,224 square feet of primarily single-level living, the home offers 4 bedrooms, 3 bathrooms, expansive entertaining spaces, and walls of south-facing glass that invite the outdoors in.Thoughtfully updated while honoring its original character, the chef’s kitchen features custom walnut cabinetry, quartz waterfall counters, white oak hardwood floors, Sub-Zero refrigeration, Wolf double ovens, Miele dishwasher, oversized island cooktop, and an inviting dining area. Elegant living and dining spaces showcase floor-to-ceiling picture windows, rich walnut built-ins, and a marble-surround wood-burning fireplace.A cozy library/den with gas fireplace opens directly to the gardens, while the primary suite offers a spa-like retreat with jetted tub, tiled shower, sauna, custom walk-in closet, and private patio with pergola. Additional bedrooms are bright and spacious with custom built-ins and oversized windows.The grounds are magical; orchards with apple, pear, and plum trees, raised beds, raspberry rows, rose gardens, greenhouse, tranquil fountains, multiple manicured lawns, and several private patios designed for relaxation and entertaining; wildlife abounds, with deer, rabbits, and hawks frequenting the property; newer custom playground and expansive guest parking add flexibility and function.Modern systems include whole-house backup generator; owned solar panels averaging up to $500/month in summer energy savings; efficient boiler heat, mini-split heating and cooling; updated sewer; new plumbing and electrical in 2025; new furnace in 2024; updated irrigation; decommissioned oil tanks.In Bridlemile, West Sylvan, and Lincoln school districts, this is a once-in-a-generation estate offering privacy, beauty, and enduring architectural significance.
Single-familyProperty Type
1948Year Built
1.51 acresLot Size
$311Price/Sq.Ft.
3 car garageParking
Listed by Declan O'Connor• Cascade Hasson Sotheby's International Realty
Bought with Kira Dennison• Windermere Realty Trust
Est. $6,581 per month, based on comparable rentals
Sale and tax history for 6140 SW Mill St
Sale History
Tax History
Date
Event
Price
RMLS #368610326
Sep 1, 2026
Sold
$1,937,694
$311/sq ft
Jul 10, 2026
Pending
—
Jun 10, 2026
Price Changed
$2,100,000
$337/sq ft
May 13, 2026
Listed
$2,400,000
$386/sq ft
RMLS #18006871
Mar 20, 2019
Sold
$1,300,000
$209/sq ft
Jan 28, 2019
Pending
—
Aug 4, 2018
Relisted
—
Jul 24, 2018
Pending
—
Jul 12, 2018
Listed
$1,450,000
$233/sq ft
+27
MID-CENTURY MASTERPIECE-GARDENER'S DREAM. Private 1.5 acre estate, one-level living, minutes to downtown, Nike, parks. This custom home flows seamlessly into a lush landscape. Large, south-facing windows open to gorgeous gardens and lawns. Gracious spaces, an open flow and natural wood built-ins lend an air of casual elegance. Lower level has a large bonus space, wine cellar & shop. A very special family home, first time on the market!
Year
Property tax
Land + Additions
Assessment*
2025
$22,910 (+4.9%)
2024
$21,832 (+2.7%)
2023
$21,258 (+3.2%)
2022
$20,595 (+2.8%)
2021
$20,035 (+6.3%)
2020
$18,845 (+2.2%)
2019
$18,443 (+4.3%)
2018
$17,688 (+3.6%)
2017
$17,073 (+16.1%)
2016
$14,711 (+3.0%)
2015
$14,276 (+1.8%)
2014
$14,023 (+15.2%)
2013
$12,169 (+9.8%)
2012
$11,081 (−0.2%)
2011
$11,102 (−1.2%)
2010
$11,242 (+3.4%)
2009
$10,874
Public record
Public record
Permits
Beds
5
Baths
4
Stories
1
Lot width
—
Lot depth
—
Lot size
1.51 Acres
Year renovated
1948
Sq. Ft.
6,371
Year built
1948
Style
Single Family Residential
County
Multnomah County
APN
R326894
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Jul 15, 2026.
Jan 7, 2025 • Final
Residential bldg/trade
Battery
Electrical
Solar
Jan 7, 2025 • Final
Residential bldg/trade
Revise the layout of a single-family home project.
Remodel
Permit history is from public records and may be incomplete or inaccurate. Redfin and its agents make no representations about the property condition or permit status. Buyers should independently verify all information.
Property details
Parking
Parking Information
Parking Features: Driveway, Off Street
Parking Total: 3
Garage Information
Garage Type: Attached
Garage Spaces: 3
Has Attached Garage: Yes
Interior
Virtual Tour Information
Virtual Tour Type: 3-D Tour
Has Virtual Tour Unbranded: Yes
Virtual Tour Description: 3-D Video Tour
Appliances
Appliances: Built-in Oven, Built-in Refrigerator, Cook Island, Cooktop, Dishwasher, Disposal, Double Oven, Island, Microwave, Quartz, Range Hood, Stainless Steel Appliance(s)
Hot Water Description: Electricity, Gas
Interior Features
Has Accessibility: Yes
Accessibility Features: Accessible Hallway(s), Garage on Main, Main Floor Bedroom w/Bath, Minimal Steps, Natural Lighting, One Level, Utility Room On Main, Walk-in Shower
Interior Features: Cork Floor, Hardwood Floors, High Ceilings, Jetted Tub, Laundry, Marble, Quartz, Wall to Wall Carpet, Washer/Dryer, Wood Floors