Now your healthy, eco-conscious lifestyle can include the roof over your head. Welcome to The Mason Williams, a unique urban habitat featuring green rooftops, sustainable materials, efficient amenities and ample bicycle parking. LEED Gold Certified, The Mason Williams matches your desire for creature comforts with minimal environmental impact. With a range of sizes, floor plans, and finishes, The Mason Williams has a nest as individual as you.
This 76-unit mixed-use building at the corner of North Williams Avenue and Mason Street is ideally situated in the heart of the vibrant Williams Corridor. Located on Portland?s bicycle highway, The Mason Williams one- and two-bedroom apartments are conveniently accessible to light rail, Lloyd Center, I-405, I-5, and downtown
Explore 3D tour
Special offer
The Mason Williams
4150 N Williams Ave, Portland, OR 97217
Expires August 31, 2026
Apartment building
1-2 beds
Covered parking
Air conditioning (wall unit)
Available units
Price may not include required fees and charges.
Unit , sortable column | Sqft, sortable column | Available, sortable column | Base rent, sorted ascending |
|---|---|---|---|
 1 x 1 - K1 floor plan 1 bd, 1 ba | 537 | Now | $1,625+ |
 1 x 1 - F floor plan 1 bd, 1 ba | 642 | Now | $1,695+ |
 2 x 1 - E1 floor plan 2 bd, 1 ba | 970 | Now | $2,250+ |
 2 x 2 - G floor plan 2 bd, 2 ba | 947 | Now | $2,495+ |
What's special
Ample bicycle parkingGreen rooftops
3D tours
- Amenities
The City of Portland requires a notice to applicants of the Portland Housing Bureau’s Statement of Applicant Rights. Additionally, Portland requires a notice to applicants relating to a Tenant’s right to request a Modification or Accommodation.
Office hours
| Day | Open hours |
|---|---|
| Mon: | Closed |
| Tue: | 10 am - 6 pm |
| Wed: | 10 am - 6 pm |
| Thu: | 10 am - 6 pm |
| Fri: | 10 am - 6 pm |
| Sat: | 10 am - 6 pm |
| Sun: | Closed |
Facts, features & policies
Building Amenities
Accessibility
- Disabled Access
Community Rooms
- Club House
- Fitness Center
- Lounge
- Party Room
Other
- Laundry: In Unit
Outdoor common areas
- Barbecue
- Deck
- Rooftop Deck
Security
- Controlled Access
- Gated Entry
Services & facilities
- 24 Hour Maintenance
- Bicycle Storage
- Elevator
- On-site Management
- Online Maintenance Portal
- Online Rent Payment
- Package Service
- Storage Space
View description
- City
Unit Features
Appliances
- Convection Oven
- Dishwasher
- Freezer
- Garbage Disposal
- Microwave Oven
- Oven
- Range
- Refrigerator
- Trash Compactor
Cooling
- Air Conditioning
- Wall Mounted Air Conditioning
Flooring
- Carpet
- Hardwood
- Laminate
Heating
- Electric
- Heat Pump
- Solar
Internet/Satellite
- Cable TV Ready
- High-speed Internet Ready
Other
- Patio Balcony
Policies
Parking
- Covered Parking
- Garage
- Multi-level Garage
- Off Street Parking
- Parking Lot
Lease terms
- One year
Utilities included in rent
- Garbage
- Gas
Pet essentials
- DogsDogs are not allowed
- CatsCats are not allowed
Neighborhood: Boise
Areas of interest
Use our interactive map to explore the neighborhood and see how it matches your interests.
Travel times
Walk, Transit & Bike Scores
Walk Score®
/ 100
Very WalkableTransit Score®
/ 100
Good TransitBike Score®
/ 100
Biker's ParadiseNearby schools in Portland
GreatSchools rating
- 7/10Boise-Eliot Elementary SchoolGrades: PK-5Distance: 0.6 mi
- 8/10Harriet Tubman Middle SchoolGrades: 6-8Distance: 1.1 mi
- 5/10Jefferson High SchoolGrades: 9-12Distance: 0.7 mi
Nearby apartments for rent
Listing order may reflect relevance, quality, and paid promotion.
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Frequently asked questions
The Mason Williams is located at 4150 N Williams Ave in Boise, Portland, OR. The surrounding area includes approximately 19 restaurants and cafes within 1 mile, such as Eem, Cafe Olli, and Lovely's Fifty Fifty.
The nearest public transit stop is TriMet Stop ID 5934, approximately 0.3 miles away.
Based on the latest Zillow data, the average rent across all unit types in Portland is currently $1,657 per month. Prices vary by neighborhood, floor plan, and building amenities.
The Mason Williams is located within 0.5 miles of American Red Cross, 0.8 miles of Matt Dishman Community Center, and 0.8 miles of Wells Fargo Bank.
The Mason Williams is located near 3 grocery stores, including 0.4 miles from New Seasons Market, 0.4 miles from Portland Farmers Market, and 0.5 miles from Bridgetown Beerhouse. Additional shopping options, including Myoptic Optometry, are approximately 0.1 miles away.
The total price for an apartment unit in The Mason Williams ranges from $1,625 to $2,495. The total price will vary by floor plan, unit size, and unit amenities.
Rent in Portland has increased by $62 month-over-month, according to the latest Zillow rental data.
The schools assigned to The Mason Williams include Boise-Eliot Elementary School, Harriet Tubman Middle School, and Jefferson High School.
