Medical office space · data as of September 2026
Medical office space for lease in San Marcos
10 buildings with 61,193 SF of medical space available across 21 listed spaces. Five buildings publish an asking rent; no class has five or more on one lease structure, too few to call a figure typical.
In San Marcos, 6 of 10 buildings with medical space listed this September are 90% leased or more.
Percent leased is the share of a whole building under lease, not just the suite on offer. Here, only one is under 75% leased. A landlord with a nearly full building carries little empty space, so there's less pressure to fill the next suite quickly.
One more fact changes the read. Kaiser Foundation Hospital - San Marcos is 0.9 mile from the center of the trade area. From the real estate side, a short distance to a campus is worth paying for only if it's the drive your practice actually makes. Pay for that, and negotiate everything else.
So: the median building with space listed in San Marcos is 97% leased, and Kaiser Foundation Hospital - San Marcos sits 0.9 mile out. The address is fixed the day you sign; almost everything else is negotiable. How often does your practice make the trip to Kaiser Foundation Hospital - San Marcos now?
San Marcos at a glance
- Buildings
- 10
- Medical space available
- 61,193 SF
- Vacant now
- 40,168 SF
- Largest single space
- 11,903 SF
Asking rents by lease structure
- Gross + Electric$2.15–$2.95/SF/mo2 buildings
- Gross + Utilities$2.20/SF/mo2 buildings
- Lease type not stated$1.99–$2.05/SF/mo1 building
4 buildings withhold pricing or don't publish it. Those numbers come from the landlords on request.
Full Service includes operating costs and utilities; NNN adds taxes, insurance and common-area costs on top of base rent; Modified Gross splits them. Compare structures, not just rates. These ranges span every building class and age; the questions below compare like with like.
Available spaces by size
- 1–2 rooms6
- 3–4 rooms5
- 5–7 rooms7
- 8–12 rooms2
- 13+ rooms1
Room counts assume 350 to 500 usable SF per exam room, with rentable area 10% to 20% above usable.
Building class
- Class A2
- Class B7
- Class C1
Hospitals within 5 miles
- Kaiser Foundation Hospital - San Marcos, San Marcos0.9 mi
Straight-line miles from the center of the San Marcos buildings to the Census Bureau geocode of each hospital's address on the CMS hospital list.
Buildings with medical space available
| Building | Class | Built | Medical space | Largest space | Fits | Asking rent | |
|---|---|---|---|---|---|---|---|
| 120 Craven Rd San Marcos Ambulatory Care Center | B | 2000 | 15,298 SF3 spaces
| 7,158 SF | ~11–18 rooms | Withheld ask us | |
| 920 Boardwalk | C | 1980 | 11,903 SF1 space
| 11,903 SF | ~19–30 rooms | Withheld ask us | |
| 338 Via Vera Cruz The Campus @ Via Vera Cruz | B | 1989 | 7,095 SF3 spaces
| 3,079 SF | ~5–7 rooms | $2.20/SF/mo Gross + Utilities | |
| 1 Civic Center Dr One Civic Center | A | 1995 | 6,970 SF2 spaces
| 3,776 SF | ~6–9 rooms | $2.75/SF/mo Gross + Electric | |
| 334 Via Vera Cruz The Campus @ Via Vera Cruz | B | 1982 | 4,967 SF3 spaces
| 3,286 SF | ~5–8 rooms | $2.20/SF/mo Gross + Utilities | |
| 288 Campus Way CSUSM Extended Learning Bldg | A | 2019 | 4,561 SF1 space
| 4,561 SF | ~7–11 rooms | Withheld ask us | |
| 751 Rancheros Dr Richland Professional Building | B | 1979 | 4,069 SF2 spaces
| 2,221 SF | ~3–5 rooms | $2.15–$2.95/SF/mo Gross + Electric | |
| 950 Boardwalk Park Place North | B | 2006 | 2,700 SF1 space
| 2,700 SF | ~4–7 rooms | $1.99–$2.05/SF/mo | |
| 2937 Norman Strasse Rd | B | 1991 | 2,300 SF4 spaces
| 1,100 SF | ~1–2 rooms | $1.85/SF/mo Modified Gross · sublease | |
| 1595 Grand Ave Grand Avenue Medical | B | 1987 | 1,330 SF1 space
| 1,330 SF | ~2–3 rooms | Withheld ask us |
Availability and asking rates change frequently and are subject to verification. Current terms are confirmed before any tour.
Compared to nearby
| Area | Buildings | Medical space | Published asking rents ($/SF/mo, buildings) |
|---|---|---|---|
| San Marcos | 10 | 61,193 SF | Gross + Electric $2.15–$2.95 (2) · Gross + Utilities $2.20 (2) · Lease type not stated $1.99–$2.05 (1) |
| Escondido | 11 | 130,076 SF | NNN $1.60–$2.50 (3) · Modified Gross $1.75–$2.95 (2) · Full Service $2.58 (1) |
| Vista | 13 | 103,382 SF | NNN $1.59–$2.65 (4) · Gross + Utilities & Janitorial $1.93–$2.00 (2) · Gross + Electric $2.15 (1) |
| Carlsbad | 14 | 196,714 SF | NNN $2.50–$4.20 (2) · Full Service $2.95 (1) · Gross + Electric $3.00 (1) |
| San Diego overall | 246 | 2,136,242 SF | NNN $1.25–$4.25 (41) · Modified Gross $1.50–$5.28 (34) · Gross + Electric $1.75–$4.45 (13) |
Lowest to highest published building asking rents, grouped by lease structure; the three most common structures are shown. Each range mixes building classes and ages. See the full rent trends report.
Questions about medical office space in San Marcos
How many medical office buildings have space available in San Marcos?
San Marcos has 10 buildings with medical office space available as of September 2026: 61,193 SF across 21 listed spaces. Of that, 40,168 SF is marked vacant now, and the largest single space is 11,903 SF, about 19 to 30 exam rooms.
What do medical office leases cost in San Marcos?
In San Marcos, four buildings publish an asking rent with a named lease structure, but no class has five or more on one structure, too few to call any figure typical: Class B on Gross + Utilities in two, Class A on Gross + Electric in one and Class B on Gross + Electric in one. Another four buildings post no asking rent; those landlords quote on request. Full Service includes operating costs and utilities, NNN adds taxes, insurance and common-area costs on top, and Modified Gross splits them, so compare total occupancy cost, not the headline rate.
How much space does a medical practice need in San Marcos?
About 385 to 600 rentable square feet per exam room. That's 350 to 500 usable square feet (the room plus its share of waiting, work areas, storage, restrooms and halls), and leases are quoted in rentable square feet, which run 10% to 20% above usable in multi-tenant medical buildings. In San Marcos, the listed spaces break down as 6 for 1 to 2 rooms, 5 for 3 to 4, 7 for 5 to 7, 2 for 8 to 12 and 1 for 13 or more.
Which hospitals are near San Marcos?
Kaiser Foundation Hospital - San Marcos is the closest hospital, 0.9 mile from the center of the San Marcos trade area. Distances are straight-line miles from the Census Bureau geocode of each hospital's address on the CMS hospital list.
How current is the San Marcos availability?
It's from the September 2026 survey of medical office availability. Spaces lease and asking terms change between monthly pulls, so current availability, rent and tenant improvement allowance are confirmed with each landlord before any tour.
Send me what fits in San Marcos
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Your advisor
Jamal Brown
Real Estate Broker · CA DRE #01780052
Jamal has spent more than 23 years in commercial real estate and has negotiated and audited more than 1,000 leases. He represents medical practices as tenants and buyers, never landlords, across Los Angeles, Orange County, San Diego and the Inland Empire. Every request sent through this site gets a reply within one business day.
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