21380 Chirping Sparrow Road, Diamond Bar
$1,399,999
5 bd · 3 ba · 3,073 sqft · Home · Diamond Bar · 1 days on market
Updated August 24, 2026




Key Facts
- Price / SqFt
- $456
- Property Type
- Home
- Year Built
- 1980
- Lot Size
- 16,259 sqft
- Garage
- 3 cars
- Stories
- 1
- Days on Market
- 1
- Listed
- Aug 23, 2026
- MLS #
- DW26185739
- Status
- Active
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About this home
Prime South Diamond Bar Fixer with Endless Potential in Award-Winning School District! Brought to market with incredible potential, this spacious two-story home located in a highly desirable South Diamond Bar neighborhood is ready for your creative vision and personal touches. Situated on a generous 0.37-acre lot with no common walls, this floor plan offers 3,073 square feet of comfortable living space featuring 5 bedrooms, 3 bathrooms, and a massive upstairs bonus room. The main level welcomes you with high cathedral ceilings at the entry and living room, a formal dining area, a convenient main-floor bedroom with a full bath, and an open-concept kitchen flowing directly into the family room with a cozy fireplace and French doors. Additional highlights include an attached 3-car garage (featuring a permitted bonus study room conversion space). Step outside to discover a private, sprawling backyard complete with a pool/spa, covered patio, and an elevated hillside path leading up to a gazebo with incredible local views. While the home requires cosmetic updating and TLC throughout, its solid bones, prime location just minutes from top-rated schools (Castle Rock Elementary, South Pointe Middle, and Diamond Bar High), shopping plazas (including H Mart), and easy access to the 57 and 60 freeways make this a rare diamond in the rough. Bring your contractors, designers, and imagination to transform this property into your dream estate!
Highlights
- 5-bedroom, 3-bath home.
- 3,073 square feet of living space.
- Located in Diamond Bar.
Price History
| Date | Price | Change |
|---|---|---|
| Aug 24, 2026 | $1,399,999 | — |
| Listed Aug 23, 2026 | ||
Location
About Diamond Bar
- Active Listings
- 142
- Median Price
- $1,080,000
Estimate a Monthly Payment
Estimated Monthly Payment
$9,143/mo
Includes estimated taxes and insurance at the assumption rates below. HOA dues are not included — enter your community's HOA (varies widely by community, and absent from listing data) for an accurate total.
- Principal & Interest
- $7,451
- Property Tax
- $1,283
- Insurance
- $408
- HOAnot included — enter your dues
- $0
Estimate only — not a loan offer or rate quote. Confirm actual figures with a lender.
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Based on information from California Regional MLS as of 2026-08-25T02:18:48.967Z. All data, including all measurements and calculations of area, is obtained from various sources and has not been, and will not be, verified by broker or MLS.