Rancho Santa Margarita / South Orange County
Plaza Antonio is the clearest example of medical inside a grocery-anchored center here: Marque Urgent Care (3,592 SF), Elite Dentistry (1,570 SF) and Pierson Chiropractic (835 SF) share the center with Pavilions and CVS. El Paseo and Avenida de las Flores have physical therapy and optical, and MemorialCare runs a health center on Avenida de las Banderas. Medical and dental offices, including physical therapy and labs, are permitted by right in both commercial districts and in the Business Park district, so zoning is rarely the obstacle. Parking at 1 space per 150 SF usually is.
Population
46,990
Median HHI
$152,560
Median age
40.9
Homeownership
72.5%
Source: U.S. Census Bureau, American Community Survey 2020-2024 5-year estimates.
Primary retail corridors
Santa Margarita Parkway · Antonio Parkway · Alma Aldea · Avenida de Las Flores
Specific shopping centers in Rancho Santa Margarita that already carry credible co-tenancy for this use. Listed in approximate order of fit.
22361–22451 Antonio Parkway
Anchors / key tenants: Pavilions, CVS Pharmacy, Wells Fargo
Size: 170,000 SF
Westar-owned neighborhood center at Antonio Pkwy / SR-241 with about 61,000 cars a day per the owner. Serves Rancho Santa Margarita plus Coto de Caza, Dove Canyon, Robinson Ranch, Las Flores, and northern Mission Viejo. The premium positioning node in town.
Existing operators are the most honest comp for whether a use can support Rancho Santa Margarita rents. These are publicly visible medical retail space businesses currently trading in the market.
Marque Urgent Care, Rancho Santa Margarita
22461 Antonio Parkway, Suite 135, Rancho Santa Margarita, CA 92688
Walk-in urgent care open Monday to Saturday 8 a.m. to 8 p.m. and Sunday 8 a.m. to 6 p.m., per Marque's clinic page. Westar's Plaza Antonio roster shows it in A-130/140 at 3,592 SF, next to Pavilions and CVS.
Elite Dentistry
Plaza Antonio, Suite J-2, 22351 Antonio Parkway, Rancho Santa Margarita, CA 92688
Dental office in 1,570 SF, per the Westar roster. Plaza Antonio also lists Pierson Chiropractic in C-215 (835 SF).
MemorialCare Medical Group, Rancho Santa Margarita Health Center
29472 Avenida de las Banderas, Rancho Santa Margarita, CA 92688
Per MemorialCare's location page, which notes building renovations are under way at the health center.
California Rehabilitation & Sports Therapy, Santa Margarita
22342 El Paseo, Suite G, Rancho Santa Margarita, CA 92688
Physical therapy clinic listed on MemorialCare's site as an affiliate, open from 6:30 a.m. on Monday, Wednesday and Friday.
LensCrafters
30505A Avenida de las Flores, Rancho Santa Margarita, CA 92688
Optical store with eye exams, per LensCrafters' store page.
01
Zoning: Table 9.03.4 (Section 9.03.080) lists Medical and dental offices, including physical therapy and laboratories, as P in both the CG and CN districts, and Table 9.03.6 (Section 9.03.090) also makes them P in the Business Park district. The definitions in Chapter 9.01 separately define a Clinic as any facility used for outpatient medical services, and Clinic does not appear in Table 9.03.4. Ask Planning to confirm in writing that an urgent care or surgery-type use will be treated as a medical office.
02
Parking: Section 9.06.070 requires 1 space per 150 SF for medical and dental offices, centers and clinics, including physical therapy, X-ray facilities and medical labs, against 1 per 250 SF for general retail and 1 per 200 SF for shopping centers. A 3,000 SF clinic needs 20 spaces where a retailer would need 12. Get the center's parking count and current roster before the LOI.
03
Shared parking: Section 9.06.090 lets the Planning Commission approve a shared parking program through the alternative development standards process if peak demand from different uses does not overlap. A medical tenant with weekday daytime hours next to evening restaurants may be able to use it, but it needs a study and a hearing.
04
Plaza Antonio availability: the Westar roster read on 2026-09-24 shows only A-145 (1,100 SF) and C-210 (1,696 SF) open. Both suit a single-provider dental, optometry or therapy office, not a multi-room urgent care.
05
Accessibility: when a primary function area is altered, 28 CFR 36.403 requires the path of travel and the restrooms and drinking fountains serving it to be made accessible, up to 20% of the alteration cost. Converting a strip suite to exam rooms usually triggers restroom and entry work as well as plumbing to each room.
06
Business park option: with about 3.8 million SF of light industrial buildings in the city and medical offices permitted by right in the Business Park district, flex buildings can be a lower-cost choice for therapy or imaging users who do not need retail frontage.
Zoning, licensing, and demographic figures on this page come from the public records below. Codes and licenses change, so confirm with the city and the licensing agency before you sign.