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Welcome to 55 Hartman – Irvine’s Ultra-Modern Three-Story Estate in the Prestigious Guard-Gated Community of Altair. This architectural masterpiece offers 5,029 sqft of luxurious living on a private 7,500 sqft corner lot. With striking design, rare vertical space, and seamless indoor-outdoor flow, this one-of-a-kind residence sets a new benchmark for modern elegance in Irvine. Step inside to a dramatic 3-story foyer with floor-to-ceiling windows that flood the home with natural light. The fully integrated Control4 Smart Home system allows effortless control of lighting, audio, climate, security, and motorized window treatments. The expansive great room connects to the backyard through a full wall of sliding glass doors that pocket into the wall, creating a true indoor-outdoor living experience. The adjacent sunroom, with motorized shades, transforms into a tea room, children’s playroom, or lounge. The chef’s kitchen boasts a massive quartz island, professional-grade stainless steel appliances, and custom cabinetry, flowing into a bright dining area and open-concept living space—perfect for everyday luxury or entertaining guests. The resort-style backyard includes a sparkling custom pool and spa, a sunken firepit lounge, and a built-in BBQ island, ideal for alfresco gatherings. Lush landscaping is maintained by an automated irrigation system for year-round ease. Upstairs, the elegant primary suite offers two custom walk-in closets and a spa-inspired bath with soaking tub, dual vanities, and glass shower. The third floor has been enclosed and reimagined as a peaceful tea room with large windows and a flexible entertainment area with wet bar and half bath. This home features nearly 1 milliion in high-end upgrades throughout, including designer finishes, custom details, and cutting-edge smart technology—delivering a lifestyle of sophistication, comfort, and effortless luxury. Altair offers world-class amenities including a 7,000 sqft clubhouse, resort pools, tennis courts, parks, and fitness centers. Minutes from Irvine Spectrum, Great Park, and award-winning Irvine Unified schools.
Listing agent: Yan Wang DRE #02157474 jcbusinessemail8@gmail.com, Listing office: JC Pacific Corp
MLS data updated 10/24/2026, 11:24:27 PM PT
Source: CRMLS, MLS #: OC25171377
Belmont insights
Compare recorded home prices, same-type ZIP sales and mortgage rates.
Jan 2, 2026
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
$5,364,875Closed sale · Jan 2, 2026ZIP 92618 · Jan 2026
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.