20843 Chester St, Castro Valley, CA, 94546
About This Home
Sharp Duplex, quiet downtown location, large lot approximately 11,084 square feet. Tremendous Potential Upside. Per Alameda County Planner this lot can potentially have 5 Accessory Dwelling Units added. Plus commercial retail building next door is also for sale. One unit is two bedrooms 1 bath. The second unit is 1 bedroom 1bath. Approximately 1,590 square feet of living area. Property is nicely landscaped. It has a detached two car garage and storage improvements. It is walking distance to elementary school and high school, many shops, restaurants, BART and Public Transportation. Perfect for Owner Occupied Buyer and/or Investor. Act today on this rare property!
Getting Around
Very Walkable
Some Transit
BikeableSchools
Construction
Condition
- Year built: 1949
Materials
- Roof: Composition
- Construction materials: Stucco
Type & Style
- Home type: MultiFamily
- Property subType: Multi Family,Duplex
Interior
Appliances
- Appliances included: Dishwasher,Disposal,Gas Water Heater
- Laundry features: Laundry Room,Washer/Dryer Hookups,Inside
Basement
- Basement: None
Bedrooms & Bathrooms
- Bedrooms: 3
- Bathrooms: 2
Features
- Tub w/Shower Over
- Window features: Window Coverings
- Flooring: Laminate,Carpet
Heating & Cooling
- Heating features: Natural Gas
- Cooling features: Ceiling Fan(s)
Interior Area
- Total structure area: 1,590
- Total interior livable area: 1,590 sqft
Property
Details
- Parcel number: 84A3762
- Attached to another structure: Yes
- Special condition: Standard
Features
- Patio & porch: Porch
- Exterior features: Garden/Play,Storage
- Fencing: Partial Fence,Fenced,Partial,Wood
- Has view: Yes
- View description: Downtown
Lot
- Lot size: 0.25 Acres
- Features: Cul-De-Sac,Level,Premium Lot,Front Yard,Landscaped,Paved,Yard Space
Parking
- Total spaces: 6
- Parking features: Detached,Off Street,Garage Faces Front,On Street
- Has garage: Yes
- Has uncovered spaces: Yes
Climate Risk is Financial Risk
Every home has a financial story beyond the listing price. Below, you’ll see the climate risks that could affect this property — and in Bills & Affordability, how those risks may influence repairs, insurance, utilities, and long-term value.
Biggest Threats for This Home
- Earthquake
- Heat Wave
- Inland Flooding
How This Home’s Risks Compare
FEMA Declared Disasters in Alameda County and California
Understanding the Costs
Financial advisors generally recommend spending no more than 30% of your gross household income on housing costs. In practice, many households stretch to 35% or beyond — especially in high-cost markets.
Estimated Costs Today
| Monthly | Annual | |
|---|---|---|
| Mortgage | $7,128 | $85,536 |
| Home Insurance * | $218 | $2,616 |
| Property Taxes | $1,833 | $21,996 |
| Electricity | $398 | $4,786 |
| Total | $9,577 | $114,924 |
Income You'd Need if You Spent...
California FAIR Plan Programs
How Costs Could Change Over Time
Climate risk is quickly impacting all of the major home ownership costs. Adjust the growth rates and percentage of income spent on housing below to see how your housing costs could change over the next 10 years — and what income you'd need to keep up.
Comparing Against the Market
Price Per Sq Ft
vs Other Active Listings
Avg $/sqft
vs Homes Sold Last Month
Median $/sqft
Current Market Trends
Median Price Per Square Foot
The median price per square foot of homes sold in this area each month. Compare this to this listing's price per square foot to gauge whether the home is priced in line with recent sales.
Historicals for This Listing
Zestimate History ($/sqft)
No zestimate history available
Price History
| Date | Event | Price |
|---|---|---|
| 2026-07-25 | Listed for sale | $1,409,800 |
View on Zillow