Riverside County · Inland Empire East · Q2 2026
Flex Space in Riverside
Asking rent
$1.06–$1.32/SF/mo NNN
Sale pricing
$275–$350 per square foot
Inland Empire East vacancy
9.0%
Flex space in Riverside, California typically asks $1.06–$1.32/SF/mo NNN and sells for roughly $275–$350 per square foot as of Q2 2026. Riverside sits in Inland Empire East (Riverside County), where direct vacancy is about 9.0% and the sub-regional average asking rent is $0.94/SF/mo NNN. Pricing within that range is set by office-to-warehouse ratio, quality of the office build-out, ground-level versus dock loading, parking ratio, and visibility.
By Dan Scodeller, Senior Vice President | Principal, Lee & Associates Last updated Data through Q2 2026
What are current market conditions for flex space in Riverside?
City-level industrial statistics are not published with the same rigor as sub-regional figures, so the table below shows Inland Empire East conditions — the best available proxy for Riverside — alongside the Inland Empire overall. Use it to frame expectations, then get a building- or site-specific survey before making a decision.
| Metric | Inland Empire East | Inland Empire overall |
|---|---|---|
| Average asking rent (NNN) | $0.94/SF/mo | $0.98/SF/mo |
| Direct vacancy | 9.0% | 7.6% |
| Total vacancy (incl. sublease) | Tracked IE-wide | 8.6% |
| Availability rate | Tracked IE-wide | 12.9% |
| IOS cap rate (indicative) | Tracked IE-wide | ~6.5% |
| Market character | Softer and more affordable, driven by big-box construction | |
| Measure | Riverside estimate |
|---|---|
| Typical asking rent | $1.06–$1.32/SF/mo NNN |
| Typical sale pricing | $275–$350 per square foot |
| Sub-region | Inland Empire East · $0.94/SF/mo NNN average |
| What sets pricing | office-to-warehouse ratio, quality of the office build-out, ground-level versus dock loading, parking ratio, and visibility |
Runs above the Inland Empire East warehouse average of $0.94/SF/mo NNN because of the office build-out.
Source: CBRE Q2 2026, Colliers Q1 2026, Kidder Mathews Q2 2026, Savills Q1 2026, Lee & Associates Mid-2026. Pricing estimates are derived from sub-regional averages and are directional only.
Why Riverside for flex space?
Large East-side market with diverse industrial stock from small-bay to big-box along the 60/91/215. For flex buildings specifically, that context matters: Riverside is in Riverside County and prices against Inland Empire East conditions — currently 9.0% direct vacancy and $0.94/SF/mo NNN average asking rent.
On the east side of the Inland Empire, the trade is cost for distance. Inland Empire East runs 9.0% vacancy against 5.9% in the west, with asking rents about $0.17 per square foot per month lower. On 200,000 square feet that spread is roughly $408,000 a year — enough to fund a lot of extra drayage miles. The east side also absorbed most recent big-box construction, which means more modern product, larger contiguous blocks, and more negotiating leverage for tenants.
Typical users of flex buildings in Riverside are light manufacturers, service contractors, medical and lab users, showroom operators, distributors needing meaningful office, and growing companies not yet ready for separate office and warehouse. Units generally run 2,000 to 25,000 square feet, often in multi-tenant business parks with shared circulation.
What to check before you lease or buy flex space in Riverside
The office ratio drives the rent
Flex rents at a premium to plain warehouse because part of the space is finished office. A 40% office building commands materially more per square foot than a 10% office building — but you pay for that finish whether your operation needs it or not.
Parking is the constraint people miss
Office-heavy operations need parking ratios that industrial parks were never designed for. Count stalls against headcount before signing; a shortfall is not fixable after the fact.
Ground-level loading limits distribution use
Most flex product loads at grade rather than dock-high. That is fine for service and light manufacturing tenants and disqualifying for anyone running full trailers.
Flex Space in Riverside — frequently asked questions
How much does flex space cost in Riverside, CA?
Flex space in Riverside generally asks $1.06–$1.32/SF/mo NNN and sells for roughly $275–$350 per square foot as of Q2 2026. Runs above the Inland Empire East warehouse average of $0.94/SF/mo NNN because of the office build-out. NNN means the tenant additionally pays taxes, insurance, and maintenance — typically $0.12 to $0.20 per square foot per month in the Inland Empire. Where a specific building falls in that range comes down to office-to-warehouse ratio, quality of the office build-out, ground-level versus dock loading, parking ratio, and visibility.
Is there flex space available in Riverside right now?
Yes. Inland Empire East, which includes Riverside, is running about 9.0% direct vacancy as of Q2 2026, against 7.6% for the Inland Empire overall and 12.9% availability including space marketed but still occupied. That is meaningfully more choice than tenants had between 2021 and 2023, and landlords are offering real concessions — free rent, improvement allowances, and flexible terms. Availability in Riverside specifically changes week to week, so a current survey beats any published figure.
Is Riverside a good location for flex space?
Large East-side market with diverse industrial stock from small-bay to big-box along the 60/91/215. As part of Inland Empire East, Riverside runs cheaper — about $0.94/SF/mo NNN against $1.11/SF/mo NNN in the west — with more available space and larger blocks. It fits operations serving the broader Southwest, where the extra miles to the ports matter less than occupancy cost. The honest answer for any specific requirement depends on your truck counts, headcount, power needs, and timing — which is exactly the conversation worth having before you tour anything.