What is the price for renting office space at Stewart Plaza?

The price for office space here is Contact for pricing except those mentioning "Contact for pricing".

What type of office space is available to lease at Stewart Plaza?

In total, there is 13,697 square feet of office space for lease here. Availability at this location includes 10 Office spaces. The property offers Multi-Tenant commercial space.

Is Stewart Plaza suitable for a small business?

Yes, availabilities here may be suitable for small businesses with 9 office spaces under 5,000 square feet available. Space sizes here start at 230 square feet.

Does Stewart Plaza have parking?

Yes, the property offers 167 parking spaces with a parking ratio of 4.00 / 1,000 SF.

400 N Mountain Ave, Upland, CA 91786

For Lease Contact for pricing
Property Type Office - General Office
Property Size 41,732 SF
Lot Size 3.96 Acre
Parking Spaces Avail. 167
Parking Ratio 4.00 / 1,000 SF
Property Tenancy Multi-Tenant
Building Class B
Year Built 1987
Date Updated Feb 2, 2026

Description

Reception, 4 Offices, Break Area Elevator Served Ideal For Office + Medical Uses Heavy Parking with Easy Access Executive Suites Available as well Surrounded by Many Retail Amenities In Close Proximity to 10 & 210 Freeways

10 Spaces Available

101

Space Type

General Office

Lease Rate

$2.25/SF/MO

Total Space

5,974 SF

Divisible Space

5,974 - 5,974 SF

Available Date

Immediate

Lease Type

Full Service

Renewal Option

Yes

Sublease

Elevator Served Ideal For Office + Medical Uses Heavy Parking with Easy Access Executive Suites Available as well Surrounded by Many Retail Amenities In Close Proximity to 10 & 210 Freeways

211

Space Type

General Office

Lease Rate

$2.50/SF/MO

Total Space

1,595 SF

Divisible Space

1,595 - 1,595 SF

Available Date

Immediate

Lease Type

Full Service

Renewal Option

Yes

Sublease

Reception, 3 Offices, Balcony Elevator Served Ideal For Office + Medical Uses Heavy Parking with Easy Access Executive Suites Available as well Surrounded by Many Retail Amenities In Close Proximity to 10 & 210 Freeways

215

Space Type

General Office

Lease Rate

$2.50/SF/MO

Total Space

1,815 SF

Divisible Space

1,815 - 1,815 SF

Available Date

Immediate

Lease Type

Full Service

Renewal Option

Yes

Sublease

229

Space Type

General Office

Lease Rate

Contact for pricing

Total Space

257 SF

Divisible Space

257 - 257 SF

Available Date

Immediate

Lease Type

Full Service

Renewal Option

Yes

Sublease

Elevator Served Ideal For Office + Medical Uses Heavy Parking with Easy Access Executive Suites Available as well Surrounded by Many Retail Amenities In Close Proximity to 10 & 210 Freeways

230

Space Type

General Office

Lease Rate

Contact for pricing

Total Space

257 SF

Divisible Space

257 - 257 SF

Available Date

Immediate

Lease Type

Full Service

Renewal Option

Yes

Sublease

Executive Suite Elevator Served Ideal For Office + Medical Uses Heavy Parking with Easy Access Surrounded by Many Retail Amenities In Close Proximity to 10 & 210 Freeways

Contacts

Brian Melkesian

Lee & Associates

73/100 Very Walkable
28/100 Some Transit
69/100 Bikeable

Contact Listing Broker

Brian Melkesian

Lee & Associates

First name

Last name

Phone number

Capacity range

Company

Monthly budget

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Stewart Plaza