The property at 3515 Keystone Loop, Discovery Bay, CA 94505, built in 2003, is a 3,518 square foot Single Family and has 4 bedrooms and 4 bathrooms. It is situated on a lot that is 6,500 square feet and was last tax assessed in 2025 for a valuation of $0
The estimate for this property has experienced a 3.99% increase in the past 6 months reaching a value of $852,471.
- Parcel Number011-421-019-8
- Sold Date08/29/2023
- Sold Price$799,000
- CountyCONTRA COSTA
- Stories2
- Home Assessment$619,038
- Land Assessment$0
- Total Assessment$0
- Assessment Year2023
- Tax Year2023
- Tax Amount$10,364
Property Tax History
Source: Public Records
| Year | Assessment |
|---|---|
| 2023 | $775,098 |
| 2022 | $775,098 +2.00% |
| 2021 | $759,900 +95.57% |
| 2020 | $388,562 |
| 2019 | $388,562 +2.00% |
| 2018 | $380,944 +2.00% |
| 2017 | $373,475 +4.04% |
| 2016 | $358,975 +1.52% |
| 2015 | $353,584 +2.00% |
| 2013 | $346,659 |
Valuation History
Source: Public Records
*Market History, including Median Sales Price per square foot, and Single Family Homes Sold is based on historical data of Zip Code: 94505 - CA
Population & Environment
Source: Sperling's Best Places
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