
Sold
10 Koso Place sold on November 6, 2025 for $1,150,000, 11.1% above the $1,035,000 asking price after 26 days on the market, including an earlier listing. The buyer financed the purchase with a conventional loan. The details are below for reference.

10 Koso Place, Rancho Santa Margarita, CA 92688
- 4 beds
- 3 baths
- 2,100 sq ft
- 6,403 sq ft lot
- Built 1988
The home
About 10 Koso Place
Discover a private, spacious home filled with natural light. This extremely attractive four-bedroom, three-bathroom home is located in the heart of Rancho Santa Margarita, close to top-rated schools, shopping, dining, parks, and impressive community amenities. From the attractive entry courtyard to the open-plan interior and large back yard, this is a home for comfortable indoor-outdoor living and entertaining. The lower level, with stained glass in the front door and adjacent window, has soaring ceilings, flooring, and seamless flow between the living, family, dining, and kitchen. The kitchen, which has generous work space and a large garden window, has beautifully upgraded cabinets, countertops, and stainless appliances, plus an adjoining comfortable family room with a fireplace. This opens to a huge bonus room with a full closet and sliding glass doors to the backyard. Upstairs, four bedrooms with all new carpeting include a primary suite with an updated bathroom and large closet. There are two full baths upstairs and one full bath downstairs. With a greenbelt and no neighbors on one side, the house has lovely landscaping in the front, where a gated entry leads to a charming patio. The serene backyard, with fruit trees, has a large patio perfect for outdoor dining, barbecues, and relaxing. The home’s additional features include central air, ceiling fans, and owned solar panels. Community amenities include, Rancho Santa Margarita Beach Club; beautiful lake, lagoon; swimming pools; parks with playgrounds, picnic areas, and sports facilities; and an extensive urban trail system for hiking and biking. A magnificent home of exceptional quality and appeal.
Property details for 10 Koso Place
This 4-bedroom, 3-bath single-family home sits in Rancho Santa Margarita in Orange County. It offers 2,100 square feet of living space. The home was built in 1988. The MLS record lists the assessor parcel number as 833-444-01. Highlights include a community pool and spa, a fireplace, an attached two-car garage, a 6,403-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
- $1,150,000
- Days On Site
- N/A
- Bedrooms
- 4
- Inside Area (SqFt)
- 2,100 sqft
- Total Baths
- 3
- Full Baths
- 3
- Partial Baths
- N/A
- Lot Size
- 6,403 SqFt
- Year Built
- 1988
- MLS® Number
- OC25262478
- Status
- Sold
- Property Tax
- N/A
- HOA/Condo/Coop Fees
- $87 monthly
- Sq Ft Source
- PublicRecords
General Features
- Property Type
- Single Family Residence
- MLS Number
- OC25262478
- Year Built
- 1988
- Living Area (sq ft)
- 2,100
- Living Area Source
- Public Records
- Lot Size (sq ft)
- 6,405
- Lot Size (acres)
- 0.147
- Levels
- Two
- Bedrooms
- 4
- Full Baths
- 3
- Garage Spaces
- 2
- Parking Spaces
- 2
- View
- Park Greenbelt
- HOA Dues
- $87
- HOA Frequency
- Monthly
- HOA Name
- Samlarc
- Parcel Number
- 83344401
- On Market Date
- 2025-11-18
- Listing Terms
- Standard
Interior Features
- Interior Features
- Ceiling Fans, Cathedral Ceilings, Separate Formal Dining Room, Eat In Kitchen, High Ceilings, Pantry, Quartz Counters, Recessed Lighting, All Bedrooms Up
- Appliances
- Built In Range, Dishwasher, Freezer, Gas Cooktop, Disposal, Gas Oven, Gas Range, Ice Maker, Refrigerator, Self Cleaning Oven, Tankless Water Heater, Water To Refrigerator, Dryer, Washer
- Flooring
- Carpet, Laminate, Tile
- Heating
- Central
- Cooling
- Central Air
- Fireplace
- Family Room
- Laundry
- Washer Hookup, Electric Dryer Hookup, Gas Dryer Hookup, In Garage
- Main Level Bathrooms
- 1
- Entry Level
- 1
- Common Walls
- No Common Walls
- Windows
- Double Pane Windows, Drapes, Screens
- Doors
- Sliding Doors
- Accessibility
- Parking
Exterior Features
- Roof
- Spanish Tile
- Foundation
- Slab
- Lot Features
- Front Yard, Greenbelt, Sprinklers In Front, Lawn, Landscaped, Sprinkler System
- Patio and Porch
- Rear Porch, Front Porch, Open, Patio, Porch
- Parking
- Door Multi, Direct Access, Driveway, Garage Faces Front, Garage, Garage Door Opener, On Street
- Fencing
- Good Condition
- Pool Features
- Community, Association
- Spa
- Community
- Sewer
- Public Sewer
- Water
- Public
- Utilities
- Cable Available, Electricity Available, Water Available
- Units
- 1
Community Features
- Subdivision
- other
- Community Features
- Biking, Curbs, Dog Park, Foothills, Gutters, Hiking, Mountainous, Street Lights, Sidewalks, Water Sports, Pool
- Association Amenities
- Clubhouse, Outdoor Cooking Area, Barbecue, Picnic Area, Playground, Pool, Sauna, Spa Hot Tub, Trails
- Security
- Carbon Monoxide Detectors, Smoke Detectors
The record
Property History for 10 Koso Place
| Date | Event | Price | Note |
|---|---|---|---|
| Nov 18, 2025 | Relisted | $1,035,000 | |
| Nov 6, 2025 | Sold | $1,150,000 |
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 26, 2025 to Sep 26, 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 10 Koso Place
As listed in the MLS record. Confirm attendance boundaries with the school district.
The MLS record lists the school district as Saddleback Valley Unified.
Living in Rancho Santa Margarita covers its schools, parks and beaches.
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Listed by Lon Pascal of Pelegrino Properties
Listing information updated Nov 18, 2025 at 12:08 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.