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Expansive Single-Level Brea Estate with Pool, Detached Garage & Development Potential A rare opportunity to own a true single-level estate in Brea — a highly desirable and increasingly hard-to-find feature, especially on a lot of this size. Set on an extraordinary 42,372 sq. ft. all-flat lot, this expansive property offers over 3,800 sq. ft. of living space, a detached 3-car garage, a large pool, generous outdoor entertaining areas, and exceptional flexibility for a buyer with vision. The spacious single-story floor plan includes 5 bedrooms, a large game room, a separate bonus room with wet bar, formal living room, formal dining room, and multiple gathering spaces designed for comfortable everyday living and entertaining. The single-level layout makes the home especially appealing for multigenerational living, extended family, aging-in-place needs, large households, or buyers who simply value the convenience, flow, and long-term desirability of a one-story residence. The nearly one-acre flat lot is the true centerpiece of the property. With expansive usable land, a detached garage, pool, patio areas, and room for additional parking, recreation, gardens, or future improvements, the property offers multiple possible paths. Per the City, this property has the potential for various ADU configurations, including an attached ADU, a detached ADU, a junior ADU, or the conversion of existing space, including possible garage conversion, subject to all applicable requirements. Buyers may also explore additional expansion, guest quarters, RV parking, a family compound, or longer-term redevelopment possibilities, including a potential second residence or lot split, subject to all city requirements, zoning, state law, and buyer verification. Whether the vision is to enjoy the existing estate, create a multigenerational compound, expand the residence, design resort-style outdoor living, or evaluate future development options, this property offers a level of space and flexibility rarely available in Brea. With its single-story design, oversized flat lot, pool, detached garage, and tremendous upside, this is more than a home — it is a rare land and lifestyle opportunity. Properties like this one come once in a lifetime !
Listing agent: Paula Aragone DRE #01364746 paula@paulaaragone.com, Listing office: First Team Real Estate
MLS data updated 10/27/2026, 4:15:05 PM PT
Source: CRMLS, MLS #: OC26142577
Belmont insights
Compare recorded home prices, same-type ZIP sales and mortgage rates.
Jul 20, 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
$2,688,000Closed sale · Jul 20, 2026ZIP 92821 · Jul 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.