Our centrally located Upland office space serves the surrounding communities of Claremont, Montclair and Ontario with over 13,000 square feet of office space starting from 100 square for one person and growing from there. Located in the Stewart Plaza on Mountain Avenue in San Bernardino County, this 3-story Spanish style building offers ample free parking.
Hours of Operation
From 8:30 am
to 5:00 pm
From 8:30 am
to 5:00 pm
From 8:30 am
to 5:00 pm
From 8:30 am
to 5:00 pm
From 8:30 am
to 5:00 pm
Closed
Closed
Walk & Ride
-
73/100
Very Walkable -
28/100
Some Transit -
69/100
Bikeable
Location
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Address:
400 North Mountain Avenue
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City:
Upland, CA
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Zip Code:
91786
Calculate Your Commute
Calculate commute by driving, cycling or walking, where available.
Commute calculator powered by Walk Score® Travel Time
Local Highlights
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Claremont
2.78 miles
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Pomona–North
4.82 miles
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Pomona
5.48 miles
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East Ontario
6.49 miles
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Pacific Electric - Etiwanda Station
8.51 miles
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Western Inn
1.98 miles
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Travelodge by Wyndham Ontario
2.65 miles
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Casa 425
2.99 miles
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Baymont by Wyndham Ontario
3.18 miles
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DoubleTree
3.23 miles
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Ontario Airport Inn
3.62 miles
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Ramada by Wyndham Ontario
3.72 miles
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Sheraton Ontario Airport Hotel
3.79 miles
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New Kansan Motel
3.84 miles
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Best Western Plus Ontario Airport & Convention Center
3.96 miles
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Baldy View Elementary School
0.41 miles
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Upland College
0.48 miles
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Citrus Elementary School
0.64 miles
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Hillside High School
0.71 miles
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Upland High School
0.71 miles
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Cabrillo Elementary School
0.74 miles
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Redeemer Lutheran School
0.87 miles
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Upland Christian School
0.90 miles
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Sycamore Elementary School
0.91 miles
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Hawthorne Elementary School
1.13 miles
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Outback Steakhouse
0.13 miles
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Miss Donuts & Boba
0.14 miles
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EZ Burger & Grill
0.16 miles
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Upland Kabob Restaurant
0.32 miles
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Wendy's
0.42 miles
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Burger King
0.49 miles
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Papa John's
0.51 miles
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Pho Century
0.51 miles
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Louie's Chicken & Fish Grill
0.52 miles
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Tacos Los Carnales
0.54 miles
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Stater Bros.
0.50 miles
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Big Lots
0.58 miles
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ALDI
0.62 miles
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Smart & Final
0.65 miles
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Sprouts Farmers Market
0.77 miles
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Walmart
0.78 miles
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Marshalls
1.00 miles
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Walmart Supercenter
1.11 miles
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Vons
1.12 miles
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dd's Discounts
1.25 miles
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Senior/West Parking Lot
0.62 miles
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North/Sophomore Parking Lot
0.82 miles
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Montclair Transcenter Park And Ride
1.51 miles
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SARH Employee Parking
1.68 miles
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East Mesa Parking
2.05 miles
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Holden Parking
2.11 miles
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Sanborn Parking
2.23 miles
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Claremont Wilderness Park South Parking
3.57 miles
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Claremont Wildnerness Park North Parking
3.79 miles
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Community Baptist Church
4.24 miles
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Budget
0.14 miles
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Avis
0.14 miles
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E-Z Clean Car Wash
0.17 miles
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Prime Wash Express
0.69 miles
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Pacific Car Wash
0.99 miles
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Enterprise
1.01 miles
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Squeaky Clean
1.21 miles
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Route 66 Car Wash
1.37 miles
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Mission Car Wash
1.91 miles
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Zipcar
2.23 miles
Reviews
Frequently Asked Questions
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Yes, you can certainly take a tour of the space before signing up for a membership. In fact, it’s encouraged, to help you get a feel for what your workday will look like. Reach out here to set up a time to come and see the space.
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Adaptability is at the core of coworking, so membership options are always designed to cater to your changing work requirements and team dynamics. Most spaces offer month-to-month memberships, enabling you to adjust your workspace to your changing needs. Whether your business is growing or downsizing – or you just want to upgrade to a more private setting – you always have the flexibility to make the changes you need.
While your membership agreement may have specific terms regarding changes, don’t hesitate to reach out to Premier Workspaces to discuss accommodating your adjustments.
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For spontaneous collaboration and interaction, open desks provide an open and flexible environment. If you prefer a dedicated space with shared community elements, dedicated desks offer a great balance between personal space and interaction.
On the other hand, private offices are best suited for focused work and private interactions. They're ideal for solo workers as well as teams seeking a dedicated space, shielded from distractions.
Choosing the ideal coworking arrangement for you is about aligning your workspace with your work style, team dynamics, and project requirements.
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Whether you're a day pass holder or a monthly member, you can access most amenities. Meeting rooms do require prior scheduling, and private offices are reserved for those with subscriptions. However, the lounge, kitchen, and breakout spaces are open to all. Complimentary services are also available regardless of membership tier, while ancillary services can be purchased separately or negotiated with Premier Workspaces.
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UPL - Upland California operates during regular business hours, as indicated above. For access outside of these hours, please contact the operator directly to inquire about any available options.
Premier Workspaces
Jake Khoury
Close
Why Choose Premier Workspaces
In business since: 2002
Premier Workspaces is a national leader in flexible workspace. Our 85+ locations provide a professional setting with well-appointed amenities and services, tailored to meet your individual business needs. Founded in 2002, Premier Workspaces is a partner you can rely on. We’ve been perfecting the professional workspace for over 20 years.