
22588 Ridge Line Road, Diamond Bar, CA 91765
22588 Ridge Line Road, Diamond Bar, CA 91765
Property Description
Luxurious 17,000-square-foot mansion located in the renowned “The Country Estates”. This efficiently designed residence features nine generously sized en-suite bedrooms, along with two huge primary suites and two powder rooms on the main level, totaling 11 bedrooms and 13 bathrooms. Situated on approximately 1.2 acres of well-maintained landscaping, the home captures breathtaking views of city lights and scenic hills from multiple vantage points. Upon entry, you’re welcomed by polished marble floors, soaring vaulted ceilings, and an impressive foyer with a dual staircase. The main level open-concept living areas create a bright and inviting atmosphere, ideal for both everyday living and entertaining and are equipped with two powder rooms and a bar area that’s perfect for hosting guests. The gourmet kitchen is designed for both functionality and style, featuring a large island, an oversized butler’s pantry, and additional high-end features to support daily living and entertaining needs. An elevator adds convenience and accessibility throughout the home. The ten-car garage provides ample space for large households or car enthusiasts. Additional interior highlights include a private game room, home theater, and a dedicated meditation room. The backyard offers an Italian villa-inspired retreat, designed for relaxation and complete with a Pool, Spa, BBQ station. Carefully crafted, this home blends refined elegance with everyday comfort. Located in a highly sought-after community with top-rated schools, the HOA includes 24-hour guard-gated security and amenities such as a community pool and spa, tennis courts, a clubhouse, and more. Come experience everything this exceptional property has to offer.
Features & Amenities
Property Details
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Comparative Market Analysis
Luxury Tier · 5 active · 2 closed
Diamond Bar · Single Family Residence
Listed in line with the median closed sale of $6,350,000. Price per sqft ($377) is a 37% discount to closed comps ($596). Closed comps sold at 90% of list — buyers have negotiating leverage. Luxury tier — fewer comparable sales widen the confidence range.
Price Position
Priced below the market — value advantage over the field.
Active Properties (5)
Active Comparables
| Address | City | Year | BD | BTH | SqFt | LotSz | LP/SqFt | LP | DIM | Score |
|---|---|---|---|---|---|---|---|---|---|---|
| 2955 Wagon Train | Diamond Bar | 1987 | 8 | 13 | 13,152 | 48,221 | $494 | $6.50M | 49 | 75 |
| 2695 Shady Ridge Lane | Diamond Bar | 2009 | 6 | 9 | 10,466 | 49,639 | $572 | $5.99M | 129 | 67 |
| 2868 Shadow Canyon Road | Diamond Bar | 2021 | 6 | 7 | 9,734 | 63,564 | $663 | $6.45M | 207 | 61 |
| 2855 Oak Knoll Drive | Diamond Bar | 2006 | 6 | 7 | 11,000 | 61,952 | $635 | $6.98M | 82 | 60 |
| 2137 Derringer Lane | Diamond Bar | 2012 | 6 | 8 | 9,158 | 57,998 | $763 | $6.99M | 92 | 50 |
| Total: 5 · Average | 6.4 | 8.8 | 10,702 | 56,274.8 | $625.4 | $6.58M | 111.8 | |||
| Median | 10,466 | $6.50M | ||||||||
Closed Properties (2)
Closed Comparables
| Address | City | Year | Date | BD | BTH | SqFt | LotSz | LP | SP | SP/SqFt | SP/LP | DIM | Score |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 22883 Canyon View Road | Diamond Bar | 2004 | 11/24/2025 | 7 | 10 | 10,658 | 69,801 | $6.20M | $5.70M | $535 | 0.92 | 122 | 68 |
| 22588 Pacific Lane | Diamond Bar | 2018 | 06/05/2026 | 5 | 8 | 10,638 | 43,150 | $7.88M | $7.00M | $658 | 0.89 | 108 | 62 |
| Total: 2 · Average | 6.0 | 9.0 | 10,648 | 56,475.5 | $6.35M | $6.35M | $596.5 | — | 115 | ||||
| Median | 10,658 | $7.00M | $7.00M | ||||||||||
Market Analysis
List vs Sale $/SqFt
Sale Price Trend
Days on Market
Sale vs List Price
This analysis was generated automatically from MLS data. For an in-depth, human-reviewed valuation, contact Joseph Sardella at josephsardella@gmail.com.