2. 21000 Cornerstone Dr Walnut CA
21000 Cornerstone Dr Walnut CA

Report Results for

21000 Cornerstone Dr Walnut, CA

21000 Cornerstone Dr Walnut, CA 91789 was built in 2018 and last sold for $720,000. The property has recorded lot details and is listed as a Condominium. The property is currently not for sale. Current estimates place the value near 976,000, reflecting a -2% change over the past year, with 4 beds, 3 baths, and approximately 1,830 sq ft of living space. If you are looking to buy or rent a property, use USPhoneBook's property database to avoid rental scams, understand tax liabilities, and get a sense of the property's value over time. You can also check out the neighborhood section and see nearby homes, last sold for prices, tax records and more.
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Public Facts

$720,000
Last sold Aug 15, 2019
4
Beds
3
Baths
1,830
Sqft
Off Market
$976,000 estimated value
Built in 2018
$533/sqft
$305 HOA fees

Property characteristics

Property type
Residential
Zoning type
Condominium
APN
8720-047-084
Subdivision
Gallery At Cornerstone
Heating
Central
Cooling
Yes

Property History

Over the last 12 months, the sales price of 21000 Cornerstone Dr Walnut, CA 91789 has decreased by -2%, and the tax increased by 5%.

Price History

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Year Price Price/Sq Ft
2026 $ 951,000 -2 % $ 520
2025 $ 973,000 -3 % $ 532
2024 $ 1,007,000 4 % $ 550
2023 $ 964,000 4 % $ 527
2022 $ 925,000 15 % $ 505
2021 $ 799,000 ---- $ 437

Tax History

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Year Taxes Assesments
2025 $ 9,836 5 % $ 787,420
2024 $ 9,355 2 % $ 771,981
2023 $ 9,124 2 % $ 756,845
2022 $ 8,934 1 % $ 742,006
2021 $ 8,767 ---- $ 727,458
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Owner

Danilo Diangkinay Danilo O Diangkinay , Age 38

Lives at 21000 Cornerstone Dr, Walnut, CA 91789-2571
Relatives: Celia Octoman, Cesar Diangkinay, Danilo Diangkinay, Danny Diangkinay, Michelle Diangkinay, Angelita Octoman, Carlos Octoman
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People Living at 21000 Cornerstone Dr Walnut, CA

Danilo Diangkinay Danilo O Diangkinay , Age 38

Lives at 21000 Cornerstone Dr, Walnut, CA 91789-2571 Walnut CA 91789 21000 Cornerstone Dr
Prior addresses: 1224 W Van Buren St, Apt 705, Chicago, IL 60607-3365 Chicago IL 60607 1224 W Van Buren St, Apt 705 1804 Apex Ave, Los Angeles, CA 90026-1462 Los Angeles CA 90026 1804 Apex Ave 918 N Ardmore Ave, Los Angeles, CA 90029-3304 Los Angeles CA 90029 918 N Ardmore Ave
Relatives: Celia Octoman, Cesar Diangkinay, Danilo Diangkinay, Danny Diangkinay, Michelle Diangkinay, Angelita Octoman, Carlos Octoman
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Jasmin Ghasemi Jasmin G Ghasemi , Age 34

Lives at 2729 Merrilee Dr, Apt 337, Fairfax, VA 22031-4436 Fairfax VA 22031 2729 Merrilee Dr, Apt 337
Prior addresses: 21000 Cornerstone Dr, Walnut, CA 91789-2571 Walnut CA 91789 21000 Cornerstone Dr 1224 W Van Buren St, Apt 705, Chicago, IL 60607-3365 Chicago IL 60607 1224 W Van Buren St, Apt 705
Relatives: Farhad Ghasemi, Jamil Ghasemi, Jeiran Schreiber, Julita Ghasemi, Alfonso Gerbuyos, Andrew Schreiber, Celia Gerbuyos, Mary Gerbuyos
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Betty Huang Betty Cc Huang , Age 47

Lives at 22057 Portofino Dr, Walnut, CA 91789-0944 Walnut CA 91789 22057 Portofino Dr
Prior addresses: 21000 Cornerstone Dr, Walnut, CA 91789-2571 Walnut CA 91789 21000 Cornerstone Dr 645 W 9th ST, Apt 536, Los Angeles, CA 90015-1652 Los Angeles CA 90015 645 W 9th ST, Apt 536
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Sunkai Pan Sunkai A Pan , Age 49

Lives at 21000 Cornerstone Dr, Walnut, CA 91789-2571 Walnut CA 91789 21000 Cornerstone Dr
Prior addresses: 22057 Portofino Dr, Walnut, CA 91789-0944 Walnut CA 91789 22057 Portofino Dr 2849 Onyx Way, West Covina, CA 91792-2781 West Covina CA 91792 2849 Onyx Way 20460 E Walnut Canyon Rd, Walnut, CA 91789-4466 Walnut CA 91789 20460 E Walnut Canyon Rd
Relatives: Aileen Pan, Caroline Pan, Ching Pan, Jessica Pan, Lawrence Pan, Linda Shu, Ralph Pan
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Shing Cheung Shing Pok Cheung , Age 41

Lives at 21000 Cornerstone Dr, Walnut, CA 91789-2571 Walnut CA 91789 21000 Cornerstone Dr
Prior addresses: 131 Pratt Ln, West Chester, PA 19382-6980 West Chester PA 19382 131 Pratt Ln 824 Walnut ST, Darby, PA 19023-3540 Darby PA 19023 824 Walnut ST 57 Florence AVE, Aston, PA 19014-2101 Aston PA 19014 57 Florence AVE
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Ching Pan Ching C Pan , Age 75

Lives at 2849 Onyx Way, West Covina, CA 91792-2781 West Covina CA 91792 2849 Onyx Way
Prior addresses: 21000 Cornerstone DR, Walnut, CA 91789-2571 Walnut CA 91789 21000 Cornerstone DR 583 Alberta Ave, Sunnyvale, CA 94087-4546 Sunnyvale CA 94087 583 Alberta Ave
Relatives: Aileen Pan, Caroline Pan, Jacky Cheng, Jessica Pan, Kathy Yong, Lawrence Pan, Linda Shu
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Sherry Nguyen Sherry Nguyen , Age 37

Lives at 8500 Avery Ct, Sacramento, CA 95828-6352 Sacramento CA 95828 8500 Avery Ct
Prior addresses: 2070 48th Ave, Sacramento, CA 95822-3825 Sacramento CA 95822 2070 48th Ave 7262 Munson Way, Apt I, Sacramento, CA 95823-2893 Sacramento CA 95823 7262 Munson Way, Apt I 7838 Shrader Cir, Sacramento, CA 95832-1501 Sacramento CA 95832 7838 Shrader Cir
Relatives: Be Nguyen, Charllie Nguyen, David Nguyen, Doi Nguyen, Hong Nguyen, Long Nguyen, Moses Le, Nhat Nguyen
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Ryan Chiu Ryan Richard Chiu , Age 36

Lives at 8430 Villeneuve Dr, Elk Grove, CA 95624-4534 Elk Grove CA 95624 8430 Villeneuve Dr
Prior addresses: 8550 Spiceberry Way, Elk Grove, CA 95624-4213 Elk Grove CA 95624 8550 Spiceberry Way 21000 Cornerstone Dr, BLDG 47, Walnut, CA 91789-2571 Walnut CA 91789 21000 Cornerstone Dr, BLDG 47
Relatives: Chiu Mk, Gary Chiu, Stephanie Chiu, Stevie W, Alliyah Voravongsa, Annie Chiu, Cameron Voravongsa, Chui Chiu
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Tze Rong Tze Chieh Rong , Age 37

Lives at 36 Mill Valley RD, Pomona, CA 91766-4847 Pomona CA 91766 36 Mill Valley RD
Prior addresses: 21000 Cornerstone DR, Walnut, CA 91789-2571 Walnut CA 91789 21000 Cornerstone DR
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Neighbors

21002 Cornerstone Dr
Walnut, CA
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21006 Cornerstone Dr
Walnut, CA
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21012 Cornerstone Dr
Walnut, CA
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20986 Cornerstone Dr
Walnut, CA
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FAQs

Who lives at 21000 Cornerstone Dr, Walnut, CA 91789?
According to our records, the current person living in 21000 Cornerstone Dr is Danilo Diangkinay.
Is this property currently for sale?
The property is not for sale and last sold for $720,000 on Aug 15, 2019. Use USPhoneBook to review nearby listings or compare similar homes in the area.
What is the estimated value of this property?
The estimated value is $976,000, reflecting a -2% change over the past year. You can explore price history and tax records to see how the value has changed over time.
How big is this property?
Complete property size and structural details are currently unavailable.
What nearby properties can I compare this to?
Nearby homes include 21002 Cornerstone Dr, 21006 Cornerstone Dr, and 21012 Cornerstone Dr, each with its own property report to help compare size, value, and residents.