$1,899,999
5Beds4Baths3,234SqFt
21792 Hermosa LaneRancho Santa Margarita, CA 92679Rancho Cielo
Sold
28 Serna sold on January 13, 2026 for $1,851,000, 2.5% below the $1,899,000 asking price after 7 days on the market. The buyer financed the purchase. The details are below for reference.
28 Serna, Rancho Santa Margarita, CA 92688
- 4 beds
- 4 baths
- 3,312 sq ft
- 8,398 sq ft lot
- Built 1995
$1,851,000
Subdivision Paragon
The home
About 28 Serna
This Elegant Home is Located in the Highly Sought after Paragon Neighborhood in RSM. This Stunning 4BR Estate is situated on a Large Corner View Lot and Nestled on a Quiet Cul de Sac Street. Designer Features abound, including a Gourmet Kitchen with Large Island and A Beautiful Formal Dinning Room. The Spacious Family Room has a Fireplace and Large Windows that allow lots of Natural Light. There is the Potential to have a Bedroom Plus Office on the Main Floor with a Full Bath. The Inside Laundry Room is Bright and has lots of Counter Space. The 2nd Floor Features a Large Primary Suite with a Sitting Area, Fireplace and Designer Perfect Primary Bath. There are 2 Secondary Bedrooms Upstairs; each with their own Private Bath. Step into the Backyard and Enjoy the Lush Landscaping and Entertaining Areas. Enjoy the Incredible Views and the Private Setting. This Home has been Repiped, has New Windows and numerous other upgrades. The 3 car Garage features Tesla Solar (Panels on the roof) and an Electric Charger. Take Advantage of ALL that RSM has to offer: Swimming Pools, The Beach Club, Pickleball & Tennis Courts, Scenic Parks and Hiking Trails and and Community Concerts!
Property details for 28 Serna
This 4-bedroom, 4-bath single-family home sits in the Paragon neighborhood of Rancho Santa Margarita in Orange County. It offers 3,312 square feet of living space. The home was built in 1995. The MLS record lists the assessor parcel number as 805-361-39. Highlights include city lights and hill views, a community pool and spa, a fireplace, an attached three-car garage, an 8,398-square-foot lot, and central air. The detail sections on this page cover interior and exterior features, estimated taxes, HOA dues where they apply, and the map location.
Specifications
Home Details
At a glance
- Price
- $1,851,000
- Days On Site
- N/A
- Bedrooms
- 4
- Inside Area (SqFt)
- 3,312 sqft
- Total Baths
- 4
- Full Baths
- 4
- Partial Baths
- N/A
- Lot Size
- 8,398 SqFt
- Year Built
- 1995
- MLS® Number
- OC25253677
- Status
- Sold
- Property Tax
- N/A
- HOA/Condo/Coop Fees
- $272 monthly
- Sq Ft Source
- Assessor
General Features
- Property Type
- Single Family Residence
- MLS Number
- OC25253677
- Year Built
- 1995
- Living Area (sq ft)
- 3,312
- Living Area Source
- Assessor
- Lot Size (sq ft)
- 8,400
- Lot Size (acres)
- 0.1928
- Levels
- Two
- Bedrooms
- 4
- Full Baths
- 4
- Garage Spaces
- 3
- Parking Spaces
- 3
- View
- City Lights, Hills, Neighborhood, Trees Woods
- HOA Dues
- $87
- HOA Frequency
- Monthly
- HOA Name
- SAMLARC
- Parcel Number
- 80536139
- On Market Date
- 2025-11-05
- Listing Terms
- Standard
Interior Features
- Interior Features
- Breakfast Bar, Ceiling Fans, Cathedral Ceilings, Separate Formal Dining Room, Granite Counters, Bedroom On Main Level, Dressing Area, Primary Suite, Walk In Closets
- Appliances
- Disposal, Gas Range, Microwave
- Flooring
- Carpet, Stone
- Heating
- Central
- Cooling
- Central Air
- Fireplace
- Family Room, Primary Bedroom
- Laundry
- Inside, Laundry Room
- Main Level Bedrooms
- 1
- Main Level Bathrooms
- 1
- Entry Level
- 1
- Common Walls
- No Common Walls
- Windows
- Custom Coverings
- Doors
- Double Door Entry
Exterior Features
- Architectural Style
- Spanish
- Roof
- Concrete, Spanish Tile
- Foundation
- Slab
- Lot Features
- Back Yard, Corner Lot, Cul De Sac, Level, Near Park, Rectangular Lot, Yard
- Patio and Porch
- Concrete, Covered, Front Porch, Patio
- Parking
- Door Multi, Direct Access, Driveway, Garage, Garage Door Opener
- Fencing
- Good Condition, Stucco Wall
- Pool Features
- Association
- Spa
- Association
- Sewer
- Public Sewer
- Water
- Public
- Utilities
- Cable Connected, Electricity Connected, Natural Gas Connected, Sewer Connected, Water Connected
- Condition
- Turnkey
- Units
- 1
Community Features
- Subdivision
- Paragon (PAR)
- Community Features
- Biking, Curbs, Hiking, Lake, Street Lights, Suburban, Sidewalks, Park
- Association Amenities
- Sport Court, Barbecue, Picnic Area, Pickleball, Pool, Spa Hot Tub, Tennis Courts, Trails
- Security
- Smoke Detectors
- Second HOA Dues
- $185
- Second HOA Name
- Montilla
The record
Property History for 28 Serna
| Date | Event | Price | Note |
|---|---|---|---|
| Jan 13, 2026 | Sold | $1,851,000 | |
| Nov 5, 2025 | Listed for sale | $1,899,000 |
No prior MLS sales on record for this home since 2012.
Next steps
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The neighborhood
About Rancho Santa Margarita
Rancho Santa Margarita is a master-planned Orange County community in the foothills of the Santa Ana Mountains, bordered to the east by the Cleveland National Forest and centered on the man-made Lago Santa Margarita. Adjacent O'Neill Regional Park spans thousands of acres of oak-shaded canyon habitat, and the city is served by the Saddleback Valley Unified and Capistrano Unified school districts.
Rancho Santa Margarita home sales, past 12 months
- Homes sold
- 263
- Median price
- $1,320,000
- Median days on market
- 17
- Median per sq ft
- $633
Recorded MLS closings of single-family homes, Sep 27, 2025 to Sep 27, 2026. Days on market run from listing to going under contract.
Recent Rancho Santa Margarita sales
| Address | Closed | Price | Sq ft | Per sq ft | Days on market |
|---|---|---|---|---|---|
| 18 Las Piedras | Sep 24, 2026 | $1,025,000 | 1,428 | $718 | 13 |
| 4 Reata | Sep 24, 2026 | $1,550,000 | 2,592 | $598 | 20 |
| 7 Santolina | Sep 22, 2026 | $1,154,240 | 1,534 | $752 | 87 |
| 7 Temecula Court | Sep 22, 2026 | $1,050,000 | 1,551 | $677 | 54 |
| 40 San Mateo | Sep 22, 2026 | $1,500,000 | 2,459 | $610 | 9 |
Schools
School District for 28 Serna
As listed in the MLS record. Confirm attendance boundaries with the school district.
The MLS record lists the school district as Capistrano Unified.
Living in Rancho Santa Margarita covers its schools, parks and beaches.
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Listed by Patricia Doyle of Regency Real Estate Brokers
Listing information updated Jan 13, 2026 at 3:12 PM PT. Source: CRMLS.
This information is for your personal, non-commercial use and may not be used for any purpose other than to identify prospective properties you may be interested in purchasing. The display of MLS data is usually deemed reliable but is NOT guaranteed accurate by the MLS. Buyers are responsible for verifying the accuracy of all information and should investigate the data themselves or retain appropriate professionals. Information from sources other than the Listing Agent may have been included in the MLS data. Unless otherwise specified in writing, the Broker/Agent has not and will not verify any information obtained from other sources. The Broker/Agent providing the information contained herein may or may not have been the Listing and/or Selling Agent.