21211 Cold Spring Lane
Diamond Bar, CA 91765
- 4 beds
- 2 baths
- 1,288 sqft
- 7,830 sqft lot
- $814 per sqft
- 1964 build
- – on site
Nestled in a highly sought-after pocket of Diamond Bar within the top-rated Walnut Valley Unified School District, this thoughtfully renovated single-story home offers modern comforts with timeless appeal. This 4 bed 2 bath ranch-style 1960’s home has been completely updated inside and out, blending charm and functionality across 1,288 square feet of living space on a spacious 7,830 square foot lot. Step inside to find wide plank LVP flooring throughout and an open floor plan. The living room has a redone wood burning fireplace that flows easily to the dining nook with built-in bench seating and extra storage. Enjoy al fresco dining off the back patio on warm California summer nights, with a beautifully landscaped backyard accented with citrus trees. The heart of the home features a beautifully remodeled kitchen with white soft-close shaker cabinets, sleek quartz countertops, a farmhouse-style stainless sink, and bar seating that opens to the dining and living areas. Both bathrooms have been stylishly renovated, and smart home touches such as a Nest system and security cameras offer enhanced comfort and security. Other notable upgrades include a newer composition roof, interior and exterior paint, newer ducting, furnace, water heater, ABS sewer line, and PEX plumbing runs throughout for peace of mind. Located in a walkable neighborhood close to local restaurants and everyday conveniences, this move-in-ready home is the perfect blend of quality updates and California lifestyle living.
Last checked:
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Last updated May 3, 2025
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MLS# OC25092519 —
This home is listed in more than one place. See it here.
The Building
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Year Built:1964
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Year Built Source:Assessor
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New Construction:No
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Construction Materials:Stucco, Wood Siding
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Total Number Of Units:1
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Architectural Style:Ranch
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Roof:Composition
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Foundation:Slab
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Structure Type:House
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Exterior Features:Rain Gutters
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Stories Total:1
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Entry Level:1
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Patio And Porch Features:Concrete, Patio, Patio Open
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Patio:1
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Accessibility Features:2+ Access Exits, Entry Slope Less Than 1 Foot, No Interior Steps
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Common Walls:No Common Walls
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Faces:Southwest
Interior
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Features:Ceiling Fan(s), Open Floorplan, Quartz Counters, Recessed Lighting
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Levels:One
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Entry Location:front
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Kitchen Features:Quartz Counters, Remodeled Kitchen, Self-closing cabinet doors, Self-closing drawers
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Eating Area:Area, Breakfast Counter / Bar
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Door Features:ENERGY STAR Qualified Doors, Sliding Doors
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Window Features:Custom Covering, Double Pane Windows, ENERGY STAR Qualified Windows, Screens
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Flooring:Vinyl
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Room Type:All Bedrooms Down, Attic, Kitchen, Living Room, Main Floor Bedroom, Main Floor Primary Bedroom, Primary Suite
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Living Area Units:Square Feet
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Living Area Source:Assessor
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Fireplace:Yes
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Fireplace:Living Room, Wood Burning
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Laundry:Dryer Included, In Garage, Washer Included
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Laundry:1
Room Dimensions
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Living Area:1288.00
Location
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Directions:Going north on S Brea Canyon Rd, turn right on Cold Spring Ln and property is second on the left
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Latitude:33.97514100
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Longitude:-117.84231200
The Property
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Property Type:Residential
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Subtype:Single Family Residence
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Property Condition:Turnkey, Updated/Remodeled
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Zoning:LCR171/2
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Lot Features:0-1 Unit/Acre, Back Yard, Front Yard, Landscaped, Lawn, Walkstreet, Yard
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Lot Size Area:7830.0000
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Lot Size Acres:0.1798
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Lot Size SqFt:7830.00
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Lot Size Source:Assessor
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View:None
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Fencing:Wood
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Fence:Yes
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Security Features:Carbon Monoxide Detector(s), Smoke Detector(s)
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Exclusions:refrigerator (none present)
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Road Frontage:City Street
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Road Surface Type:Paved
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Additional Parcels:No
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Land Lease:No
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Lease Considered:No
Listing Agent
- Contact info:
- No listing contact info available
Taxes
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Tax Census Tract:4033.25
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Tax Tract:25985
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Tax Lot:105
Beds
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Total Bedrooms:4
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Main Level Bedrooms:4
Baths
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Total Baths:2
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Bathroom Features:Bathtub, Shower in Tub, Main Floor Full Bath, Remodeled, Walk-in shower
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Full & Three Quarter Baths:2
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Main Level Baths:2
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Full Baths:2
The Listing
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Special Listing Conditions:Standard
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Parcel Number:8285018023
Heating & Cooling
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Heating:1
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Heating:Central
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Cooling:Yes
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Cooling:Central Air
Utilities
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Utilities:Electricity Connected, Natural Gas Connected, Sewer Connected, Water Connected
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Sewer:Public Sewer
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Electric:Standard
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Water Source:Public
Appliances
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Appliances:Dishwasher, Electric Range, Microwave, Recirculated Exhaust Fan, Self Cleaning Oven, Water Heater
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Included:Yes
Schools
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Elementary:EVERGR
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Elementary School:Evergreen
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Middle School:South Pointe
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Middle School:SOUPOI
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High School:Diamond Bar
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High School:DIABAR
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High School District:Walnut Valley Unified
The Community
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Features:Sidewalks, Storm Drains, Street Lights
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Inclusions:washer, dryer, microwave, dishwasher, range
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Association:No
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Pool:None
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Senior Community:No
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Private Pool:No
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Spa Features:None
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Assessments:No
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Assessments:None
Parking
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Parking:Yes
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Parking:Direct Garage Access, Concrete, Driveway Up Slope From Street, Garage, Garage Faces Front, Off Street
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Parking Spaces:2.00
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Attached Garage:Yes
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Garage Spaces:2.00
Monthly cost estimate

Asking price
$1,048,888
Expense | Monthly cost |
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Mortgage
This calculator is intended for planning and education purposes only. It relies on assumptions and information provided by you regarding your goals, expectations and financial situation, and should not be used as your sole source of information. The output of the tool is not a loan offer or solicitation, nor is it financial or legal advice. |
$5,616
|
Taxes | N/A |
Insurance | $288 |
Utilities | $175 See report |
Total | $6,079/mo.* |
*This is an estimate |
Walk Score®
Provided by WalkScore® Inc.
Walk Score is the most well-known measure of walkability for any address. It is based on the distance to a variety of nearby services and pedestrian friendliness. Walk Scores range from 0 (Car-Dependent) to 100 (Walker’s Paradise).
Bike Score®
Provided by WalkScore® Inc.
Bike Score evaluates a location's bikeability. It is calculated by measuring bike infrastructure, hills, destinations and road connectivity, and the number of bike commuters. Bike Scores range from 0 (Somewhat Bikeable) to 100 (Biker’s Paradise).
Soundscore™
Provided by HowLoud
Soundscore is an overall score that accounts for traffic, airport activity, and local sources. A Soundscore rating is a number between 50 (very loud) and 100 (very quiet).
Air Pollution Index
Provided by ClearlyEnergy
The air pollution index is calculated by county or urban area using the past three years data. The index ranks the county or urban area on a scale of 0 (best) - 100 (worst) across the United Sates.
Sale history
Date | Event | Source | Price | % Change |
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5/2/25
May 2, 2025
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Listed / Active | CRMLS_CA | $1,048,888 |

51% of nearby similar homes sold for over asking price
Similar homes that sold in bidding wars went $52k above asking price on average, but some went as high as $299k over asking price.