Every medical office availability we're tracking across 14 Inland Empire submarkets — from Loma Linda's university medical corridor and Riverside's Magnolia Avenue hospital row to Rancho Cucamonga, Corona, the Temecula–Murrieta hospital cluster, and out to the Coachella Valley. Filtered by submarket and suite size, favorited by you, and toured with an advisor who works only for tenants.
How it works
Filter by market, submarket, and suite size. Favorite the buildings worth a closer look.
Send us your favorites — we confirm live availability, rates, and improvement potential within one business day.
We schedule showings and negotiate on your side of the table only. Landlords typically pay our fee.
Space planning
Most outpatient practices land near 350–500 usable square feet per exam room once reception, waiting, work areas, storage, and circulation are counted. Set your room count and we'll translate it into a suite-size range — then show you every building with a suite that fits.
Procedure rooms, imaging, lab, or PT floors scale differently — .
Planning range only — window lines, plumbing, and suite shape change what a floor plate yields. We arrange test fits before you negotiate.
Market overview
The Inland Empire is one of the fastest-growing healthcare markets in Southern California, driven by population growth in Riverside and San Bernardino counties and major health system expansions. Loma Linda University Health, Kaiser Permanente, Riverside Community Health, and Temecula Valley Hospital anchor the primary medical corridors, with new development following the population east and south.
Key corridors include Loma Linda (the university medical center campus on Anderson Street and Mountain View Avenue — the IE's densest medical office node), Riverside (Magnolia Avenue from downtown past Riverside Community Hospital to Kaiser at 10800, plus the Brockton Avenue medical row), Rancho Cucamonga (Haven Avenue and Milliken corridor), Ontario and Upland (Foothill Boulevard, San Bernardino Road), Corona (Main Street and Magnolia), Temecula and Murrieta (the hospital row along Medical Center Drive, Baxter Road near LLU-Murrieta, and Temecula Parkway near TVH), and the Coachella Valley (Eisenhower Health on Bob Hope Drive, Highway 111 corridor through Palm Desert). Rents are generally the most competitive in SoCal, making the IE attractive for practices prioritizing space and value.
With 232 buildings listed across 14 submarkets, we help medical tenants navigate a sprawling geography and negotiate from the tenant's side only.
Insights & market notes
Most medical practices begin a space search the same way — someone spots a "for lease" sign near the hospital and books a showing. Tours are the fun part, but the practices that end up in the right space at the right rent do five things first.
1. Count exam rooms, not square feet. Your exam-room count at full patient load — plus one or two for growth — is the number that actually sizes a medical office. Square footage follows from it (roughly 350–500 usable SF per room once reception, waiting, and work areas are included). Start with rooms and every listing becomes comparable.
2. Map your patient base before your commute. Referral patterns, hospital affiliations, and where your patients already live matter more than proximity to your house. A suite ten minutes closer to your admitting hospital or anchor referrers can be worth more than a discount on rent.
3. Budget total occupancy cost, not the asking rate. The quoted rent is one line. Operating expenses, utilities, janitorial, after-hours HVAC, and parking can move the real number 20–40%. Two spaces with identical asking rates are rarely identical deals.
4. Know your timeline honestly. Second-generation medical space can be ready in a few months; a clinical build-out from shell routinely takes nine to twelve, permits included. If your lease expires in six months, that fact shapes which buildings are even candidates — start 12 to 18 months out when you can.
5. Put a tenant-side advisor in your corner early. The landlord's broker works for the landlord — that's the job. Tenant representation is typically paid by the landlord in the transaction, so bringing your own advisor usually costs your practice nothing and changes the information balance in every conversation that follows. One side. Yours.
When you've done those five, the finder on this page does the rest: filter by market and exam-room count, favorite what fits, and send it to us — we'll verify live availability and set up the tours.
Medical office space for lease in Los Angeles, Orange County, and San Diego is priced, built, and negotiated differently than standard office space — and practices that treat the two the same tend to overpay in ways that only show up after move-in.
The build-out is the deal. Exam rooms need sinks. Sinks need plumbing runs. Procedure rooms may need reinforced walls, medical gas, dedicated electrical, or upgraded HVAC. Clinical improvements routinely cost several times what a standard office build costs, which is why the tenant-improvement allowance — how much the landlord contributes — matters more than a small difference in the quoted rate. A space that already has medical infrastructure in place ("second-generation medical") can save a practice enormous time and capital compared to converting general office space.
Parking is clinical capacity. A law firm can run on three stalls per 1,000 square feet. A busy practice with patient turnover every 20 minutes cannot. Parking ratio is one of the quiet reasons a cheaper building can be the more expensive choice — if patients circle the lot, your schedule slips.
Operating hours and utilities. Ask how after-hours HVAC is billed and metered. Practices with early clinics, evening hours, or weekend availability can accumulate real cost in buildings designed around 9-to-5 tenancy.
The takeaway: compare medical spaces on total occupancy cost — rent, improvements, parking, utilities, and operating expense structure — not the headline rate. That's the analysis we run for every practice we represent, at no cost to the tenant in most transactions, because landlords typically pay brokerage fees.
The most common sizing mistake we see from medical tenants in Southern California isn't leasing too little space — it's leasing for a version of the practice that doesn't exist yet, and carrying the extra rent for years while it (hopefully) does.
A working framework. Start with exam rooms, because they drive everything else. As a rough planning range, many outpatient practices land somewhere near 350–500 usable square feet per exam room once you account for the room itself plus its share of reception, waiting, work stations, storage, restrooms, and circulation. A three-exam-room practice often fits comfortably in roughly 1,200–1,800 SF; a six-room clinic frequently lands in the 2,500–3,500 SF range. Specialties with procedure rooms, imaging, lab space, or physical therapy floors scale differently — that's a design conversation, not a rule of thumb.
Test the layout, not the number. Two spaces of identical square footage can yield different exam-room counts depending on window lines, column spacing, plumbing locations, and suite shape. Before falling in love with a listing, have someone sketch a test fit. We arrange these for clients before lease negotiations begin, because the results change what the space is worth to you.
Build in a release valve. If growth is genuinely likely, negotiate for it — a right of first refusal on adjacent suites or expansion options costs little to ask for and can save a relocation later. Flexibility written into the lease beats square footage sitting empty.
Rate gets the attention, but in medical leases across Los Angeles, Orange County, and San Diego, these six terms usually move more money than the rate does.
1. Tenant improvement allowance. Clinical build-outs are expensive; the landlord's contribution is negotiable and often correlates with lease term. Understand what the allowance actually covers — and what happens to unused dollars.
2. Exclusivity. A specialty-use exclusive can prevent the landlord from leasing to a directly competing practice in the same project. For referral-driven and consumer-facing specialties, this clause protects the value of the location itself.
3. After-hours HVAC and utilities. Know the billing method before you sign, especially if your clinic runs early, late, or weekends.
4. Parking. Confirm the ratio, whether stalls are reserved or shared, patient versus staff allocation, and any separate parking charges. For high-volume practices, parking is throughput.
5. Assignment and exit. Practices sell, merge, and add partners. Assignment and sublease provisions decide how easily your lease transfers in a practice sale — a term that matters most exactly when you have the least leverage to fix it.
6. Renewal options. Options with a defined rate mechanism protect you from starting over — in negotiating position and in build-out — at the end of the term.
None of this is legal advice; it's a map of where the leverage lives. Bring your attorney for the documents and a tenant-side advisor for the market data and negotiation — in most deals, the landlord pays the brokerage fee either way.
Common questions
The largest concentrations are in Loma Linda (university medical center campus), Riverside along Magnolia Avenue and Brockton, Rancho Cucamonga on Haven and Milliken, Ontario and Upland along Foothill, Corona on Main Street, Temecula-Murrieta near the hospital cluster, San Bernardino near Community Hospital, and the Coachella Valley along Highway 111 and Bob Hope Drive near Eisenhower Health.
The IE generally offers the most competitive medical office rents in Southern California — typically $1.50–$2.50/SF/year in most submarkets, with premium locations near Loma Linda and newer construction in Rancho Cucamonga and Temecula reaching $2.75–$3.25. Lower base rents combined with available TI packages make the IE attractive for practices expanding from coastal markets.
Tenants only. We advise and negotiate exclusively on the tenant's side of the table, so there's no landlord conflict of interest in the guidance you get.
It's our commitment to represent only medical tenants — never landlords. Every market survey, negotiation, and lease review we do is done solely in your practice's interest, with no listing-side conflicts pulling the other way.
In most commercial lease transactions the landlord pays brokerage fees, so tenant representation typically comes at no direct cost to the practice.
A common planning range is roughly 350 to 500 usable square feet per exam room once reception, waiting, work areas, storage, and circulation are included. Procedure-heavy specialties scale differently and benefit from a test fit.
We represent medical tenants only — never landlords. Tell us your specialty, size, and timing; we'll line up the right buildings, verify availability, and negotiate on your side of the table. No cost to your practice in most transactions.
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Insights · MD Office Spaces