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Lake Mathews, CA

$1,590,000

19950 Onaknoll, Lake Mathews, CA
4
Beds
5
Baths
3,110
Sq Ft
1960
Built
11
Days listed

About this home

A true private resort unlike anything available in Lake Mathews! Situated on 2.29 acres on one of the area's premier view lots with breathtaking panoramic views of Lake Mathews, this extraordinary estate features an approx. 2,560 sq. ft. 3-bedroom plus office/den main residence and an approx. 550 sq. ft. detached ADU/guest house, offering over 3,100 sq. ft. of combined living space. The remodeled interior showcases vaulted ceilings with exposed wood beams, a chef's kitchen with custom shaker cabinetry, quartz countertops, oversized island, premium stainless steel appliances, professional-grade gas range, designer hood, remodeled laundry room, and a spa-inspired primary bath with a custom walk-in tile shower and frameless glass enclosure. The detached ADU/guest house includes a bedroom, full bath, and kitchenette, making it ideal for multigenerational living, guest accommodations, rental income, or potential Airbnb use. The backyard is an entertainer's dream, highlighted by an approx. 80,000-gallon resort-style pool with an oversized elevated spa, waterfalls, Baja shelves, tanning ledges, illuminated water features, and dramatic fire bowls. The covered pavilion features a grand fireplace, built-in TV, refrigerator, serving bar, and lounge area overlooking the pool and lake. A custom BBQ station, multiple pergolas, covered outdoor dining, lake-view fire pit lounge, private courtyard with water feature, lush lawns, mature landscaping, walking paths, and a custom playground complete this incredible outdoor retreat. An approx. 20' x 70' detached workshop with gated access provides covered space for RVs, boats, collector cars, equipment, hobbies, or a home business. A second workshop, paid solar, Tesla EV charger, expansive concrete parking, and approx. one acre of flat usable land offer endless possibilities for toys, additional structures, equestrian amenities, or another ADU. Located in unincorporated Riverside County, this unique property offers potential for a short-term vacation rental (Airbnb), private retreats, reunions, and special events. Rarely does a property combine panoramic lake views, a detached ADU, resort-style amenities, massive workshop space, usable acreage, and unmatched entertaining into one unforgettable estate.

Facts & features

Interior
Bedrooms
4
Bathrooms
4 full, 1 half
Living area
3,110 sq ft
Interior features
Beamed Ceilings, Built In Features, Ceiling Fans, Separate Formal Dining Room, Eat In Kitchen, Quartz Counters, Loft, Main Level Primary, Walk In Closets
Appliances
Gas Range, Microwave, Refrigerator, Range Hood, Tankless Water Heater
Flooring
Tile
Fireplace
Den, Dining Room
Heating
Central, Fireplaces, Propane
Cooling
Central Air, Wall Window Units
Laundry
Stacked
Levels
One
Spa
Private, Solar Heat
Exterior & lot
Lot size
2.29 acres (99,752 sq ft)
Pool
Electric Heat, In Ground, Private, Solar Heat
View
Hills, Lake, Mountains, Panoramic, Pool
Year built
1960
Parking
Pull Through, Rv Access Parking, Rv Covered, Workshop In Garage
Parking spaces
9
Community
Area
SRCAR - Southwest Riverside County
County
Riverside
Community features
Biking, Foothills, Mountainous
Listing details
Status
Active
Property type
Single Family Residence
Days on market
11
Listed
2026-07-05
Terms
Cash, Conventional, Exchange 1031, Va Loan
Parcel #
286130041
MLS #
SW26146463
Listed by
Anthony Lauria · Abundance Real Estate

Location

Price history

Listed
$1,590,000 · 2026-07-05
Days on market
11
Current price
$1,590,000
Financing

Could this home be yours?

Estimated monthly payment
$9,974
$8,040 principal & interest · $1,935 taxes & insurance
$318,000
Estimate only
Loan $1,272,000

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Estimated value range nearby
$2,562,903$3,008,625

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Listing data provided by CRMLS

Listing courtesy of Abundance Real Estate. © 2026. The multiple listing data appearing on this website is owned and copyrighted by California Regional Multiple Listing Service, Inc. ("CRMLS") and is protected by all applicable copyright laws. Information provided is for the consumer's personal, non-commercial use and may not be used for any purpose other than to identify prospective properties the consumer may be interested in purchasing. All data, including but not limited to all measurements and calculations of area, is obtained from various sources and has not been, and will not be, verified by broker or MLS. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information. The listing broker's offer of compensation is made only to participants of the MLS where the listing is filed. Last updated July 26, 2026 Equal Housing Opportunity.

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