Tucked behind a long, extended driveway and surrounded by mature greenery, this beautifully updated 4-bedroom, 2-bathroom home offers the privacy and serenity you’ve been looking for—right in one of Southern California’s most desirable communities. From the moment you arrive, the fresh exterior paint and charming curb appeal set the tone for what awaits inside. Step through the front door and be welcomed by soaring vaulted ceilings, an abundance of natural light, and a flowing open-concept layout that connects the living room, dining area, and family room into one inviting great room. Cozy up by the fireplace or entertain effortlessly in the newly renovated kitchen—featuring modern finishes, sleek countertops, and ample cabinetry. The entire home boasts newer flooring and dual-pane windows, combining style, energy efficiency, and comfort in every room. Each of the four spacious bedrooms offers a peaceful retreat, while both bathrooms have been thoughtfully maintained for convenience and function. Enjoy direct interior access from the attached 2-car garage, and step out back to your own private sanctuary. The backyard is ideal for relaxing, entertaining, or even expanding—there’s plenty of space to garden, play, or create the outdoor oasis of your dreams. Located in Walnut, CA, a city known for its award-winning schools, well-kept neighborhoods, and strong sense of community, this home is just minutes from parks, hiking trails, shopping centers, and top-rated schools like Walnut High. Whether you’re commuting to work or exploring the San Gabriel Valley, you’ll love the convenience of easy access to the 60 and 57 freeways. This home blends comfort, style, and location—don’t miss your chance to make it yours.
Sold for $900,000
Listing Provided by: First Team Real Estate
Bought with: Pinnacle Real Estate Group
$900,000
21040 Lycoming St, Diamond Bar, CA 91789
4beds
1,794sqft
Single Family Residence
Built in 1980
7,658 Square Feet Lot
$904,900 Zestimate®
$502/sqft
$3,978 Estimated rent
Home value
$904,900
$823,000 - $995,000
$3,978/mo
Zestimate® history
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List your homeWhat's special
Charming curb appealExtended drivewayMature greeneryModern finishesAbundance of natural lightAmple cabinetryOpen-concept layout
Zillow last checked:
Listing updated:
Listing Provided by:
Michael Arshaid DRE #01784611 714-420-4234,
First Team Real Estate,
Cindee Cano DRE #01400631 714-328-3333,
First Team Real Estate
Bought with:
Qiyu Chen, DRE #01879108
Pinnacle Real Estate Group
Source: CRMLS,MLS#: PW25177256
Originating MLS: California Regional MLS
Originating MLS: California Regional MLSFacts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 4
- Bathrooms: 2
- Full bathrooms: 2
- Main level bathrooms: 2
- Main level bedrooms: 4
Bedroom
- Features: All Bedrooms Down
Bathroom
- Features: Bathroom Exhaust Fan, Bathtub, Tub Shower
Kitchen
- Features: Kitchen/Family Room Combo, Quartz Counters, Remodeled, Updated Kitchen
Heating
- Central
Cooling
- Central Air
Appliances
- Included: Dishwasher, Disposal, Gas Oven, Gas Range, Gas Water Heater, Range Hood, Vented Exhaust Fan, Water To Refrigerator
- Laundry: In Garage
Features
- Breakfast Bar, Built-in Features, Tray Ceiling(s), Cathedral Ceiling(s), Separate/Formal Dining Room, High Ceilings, Open Floorplan, Pantry, Recessed Lighting, All Bedrooms Down, Entrance Foyer, Primary Suite, Walk-In Closet(s)
- Flooring: Laminate
- Doors: Double Door Entry, Sliding Doors
- Windows: Blinds, Double Pane Windows, Screens
- Has fireplace: Yes
- Fireplace features: Gas, Living Room
- Common walls with other units/homes: No Common Walls
Interior area
- Total interior livable area: 1,794 sqft
Property
Parking
- Total spaces: 2
- Parking features: Door-Multi, Direct Access, Garage, Garage Door Opener
- Attached garage spaces: 2
Accessibility
- Accessibility features: No Stairs
Features
- Levels: One
- Stories: 1
- Entry location: 1
- Patio & porch: Concrete
- Exterior features: Lighting, Rain Gutters
- Pool features: None
- Spa features: None
- Fencing: Wood
- Has view: Yes
- View description: Hills
Lot
- Size: 7,658 sqft
- Features: Back Yard, Front Yard, Irregular Lot, Lawn, Landscaped, Level, Rectangular Lot, Sprinkler System, Street Level
Details
- Parcel number: 8719017001
- Zoning: LCR16000*
- Special conditions: Standard
Construction
Type & style
- Home type: SingleFamily
- Architectural style: Ranch
- Property subtype: Single Family Residence
Materials
- Drywall, Concrete, Stucco
- Foundation: Slab
- Roof: Composition
Condition
- Updated/Remodeled
- New construction: No
- Year built: 1980
Utilities & green energy
- Sewer: Public Sewer
- Water: Public
- Utilities for property: Cable Connected, Electricity Connected, Natural Gas Connected, Phone Connected, Sewer Connected, Water Connected, Overhead Utilities
Community & neighborhood
Security
- Security features: Carbon Monoxide Detector(s), Smoke Detector(s)
Community
- Community features: Curbs, Gutter(s), Storm Drain(s), Street Lights, Sidewalks
Location
- Region: Diamond Bar
Other
Other facts
- Listing terms: Cash,Conventional,1031 Exchange,FHA,VA Loan
- Road surface type: Paved
Price history
| Date | Event | Price |
|---|---|---|
| 9/30/2025 | Sold | $900,000-2.7%$502/sqft |
Source:  CRMLS #PW25177256 Report a problem | ||
| 9/13/2025 | Pending sale | $924,900$516/sqft |
Source: CRMLS #PW25177256 Report a problem | ||
| 9/4/2025 | Contingent | $924,900$516/sqft |
Source: CRMLS #PW25177256 Report a problem | ||
| 8/25/2025 | Listed for sale | $924,900$516/sqft |
Source: CRMLS #PW25177256 Report a problem | ||
| 8/13/2025 | Contingent | $924,900$516/sqft |
Source: CRMLS #PW25177256 Report a problem | ||
| 8/6/2025 | Listed for sale | $924,900+138.4%$516/sqft |
Source: CRMLS #PW25177256 Report a problem | ||
| 1/29/2013 | Listing removed | $2,075$1/sqft |
Source: RE/MAX MASTERS REALTY #CV12132518 Report a problem | ||
| 1/15/2013 | Price change | $2,075-3.5%$1/sqft |
Source: RE/MAX MASTERS REALTY #CV12132518 Report a problem | ||
| 11/30/2012 | Price change | $2,150-2.3%$1/sqft |
Source: RE/MAX MASTERS REALTY #CV12132518 Report a problem | ||
| 10/26/2012 | Listed for rent | $2,200$1/sqft |
Source: RE/MAX Masters #CV12132518 Report a problem | ||
| 9/26/2012 | Sold | $388,000-3%$216/sqft |
Source: Public Record Report a problem | ||
| 8/8/2012 | Price change | $399,900-3.6%$223/sqft |
Source: foreclosure.com Report a problem | ||
| 6/22/2012 | Price change | $414,900-3.5%$231/sqft |
Source: foreclosure.com Report a problem | ||
| 5/11/2012 | Listed for sale | $429,900+7.5%$240/sqft |
Source: foreclosure.com Report a problem | ||
| 2/6/2012 | Sold | $400,000+11.2%$223/sqft |
Source: Public Record Report a problem | ||
| 9/17/2011 | Listing removed | $359,800$201/sqft |
Source: NEWWELL BANKER REAL ESTATE #C11109804 Report a problem | ||
| 8/28/2011 | Price change | $359,800-4.1%$201/sqft |
Source: NEWWELL BANKER REAL ESTATE #C11109804 Report a problem | ||
| 8/25/2011 | Price change | $375,000-7.4%$209/sqft |
Source: NEWWELL BANKER REAL ESTATE #C11109804 Report a problem | ||
| 8/22/2011 | Listed for sale | $405,000-6.9%$226/sqft |
Source: NEWWELL BANKER REAL ESTATE #C11109804 Report a problem | ||
| 3/24/2005 | Sold | $435,000$242/sqft |
Source: Public Record Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | $6,398 +5.6% | $477,781 +2% |
| 2024 | $6,057 +2.4% | $468,413 +2% |
| 2023 | $5,915 +2.1% | $459,230 +2% |
| 2022 | $5,792 +1.9% | $450,226 +2% |
| 2021 | $5,681 +1.3% | $441,399 +1% |
| 2020 | $5,610 | $436,874 +2% |
| 2019 | $5,610 +7.5% | $428,309 +2% |
| 2018 | $5,217 | $419,912 +2% |
| 2017 | $5,217 +4.8% | $411,679 +2% |
| 2016 | $4,980 +3.1% | $403,608 +1.5% |
| 2015 | $4,829 -0.7% | $397,547 +2% |
| 2014 | $4,865 | $389,760 -11.7% |
| 2012 | -- | $441,400 |
| 2011 | -- | $441,400 |
| 2010 | -- | $441,400 |
| 2009 | -- | $441,400 -4.4% |
| 2008 | -- | $461,625 +2% |
| 2007 | -- | $452,574 +2% |
| 2006 | -- | $443,700 +117.2% |
| 2005 | -- | $204,296 +4% |
| 2004 | -- | $196,364 +1.9% |
| 2003 | -- | $192,766 +2% |
| 2002 | -- | $188,988 +4% |
| 2000 | -- | $181,652 |
Find assessor info on the county website
Neighborhood: 91789
Nearby schools
GreatSchools rating
- 9/10Walnut Elementary SchoolGrades: K-5Distance: 0.5 mi
- 10/10South Pointe Middle SchoolGrades: 6-8Distance: 0.8 mi
- 10/10Walnut High SchoolGrades: 9-12Distance: 1.4 mi
Schools provided by the listing agent
- Elementary: Walnut
- Middle: South Pointe
- High: Walnut
Source: CRMLS. This data may not be complete. We recommend contacting the local school district to confirm school assignments for this home.
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Estimated market value
$904,900
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Estimated market value
$904,900
- California
- Los Angeles County
- Diamond Bar
- 91789
- 21040 Lycoming St
Nearby cities
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Other Diamond Bar Topics
