Opening page…
Opening page…
Opening home details…
Modern Luxury Meets California Charm in the prestigious Alessandro Heights area! It's time to see 663 Mountain House Drive, a luxurious estate in the heart of Riverside, California. This stunning property boasts a sleek, modern design and perfectly blends style and sophistication. As you enter the home, imagine being greeted by an expansive open-concept living area with massive room sizes, elegant finishes, and panoramic views of the valley. A unique custom landscape is out every window every day. The gourmet kitchen is an aspiring chef's dream, with luxurious Betazzoni appliances, custom cabinetry, and an incredible island. The spacious primary suite is a true oasis, with a gorgeous ensuite bath and TWO huge walk-in closets. The luxurious ensuite bathroom has a large soaking tub, a walk-in shower, and dual vanities. The property is on a sprawling lot, providing ample outdoor space for relaxation and entertainment. The backyard features a sparkling pool and a covered patio, ideal for hosting gatherings and enjoying the California sunshine. You are within 6 miles of Sycamore Canyon Wilderness Park and 13 miles away from Lake Mathews for all your outdoor desires. Take advantage of the opportunity to make this incredible Alessandro Heights estate your forever home. Schedule your private tour now!
Listing agent: DiAnn Dillard DRE #01880867 deanndillardrealestate@gmail.com, Listing office: eXp Realty of California, Inc.
MLS data updated 10/25/2026, 7:27:43 PM PT
Source: CRMLS, MLS #: 230003065SD
Belmont insights
Compare recorded home prices, same-type ZIP sales and mortgage rates.
May 15, 2023
Prices use the left axis; mortgage rates use the right. Hover, tap, or focus the chart and use the arrow keys. Red SOLD badges mark recorded sales.
This home · nearest recorded event
$1,370,000Closed sale · May 15, 2023ZIP 92506 · May 2023
No monthly averageAt least 3 eligible sales in this month are required.30-year fixed mortgage benchmark
No weekly rateNo published rate within 7 days of this date.ZIP averages use publicly displayable closed sales from our licensed MLS feed, matched to the same ZIP and exact property type. Months with fewer than 3 sales are omitted; the current month is incomplete. Lines connect available monthly observations across gaps and do not represent measured prices in missing months. These averages are not adjusted for size, condition, or location within the ZIP, and are not an appraisal. Feed coverage may not include every sale. All available shows the available home and ZIP history, with mortgage rates over the same dates.
Mortgage benchmark: Freddie Mac Primary Mortgage Market Survey®. © Freddie Mac. Weekly national 30-year fixed rates, not APRs or a loan quote. Actual terms vary. Methodology changed in November 2022. The chart does not establish that interest-rate changes caused a home’s price changes.
Lines connect recorded asking and sale prices. They are visual guides, not estimates of the home’s value between those dates.
No earlier records were returned by our current sources. This does not mean the home has never sold.
MLS records may be incomplete. Earlier asking prices are not sale prices.