6727 Sunnyslope Ave, Castro Valley, CA, 94552
About This Home
***OPEN HOUSE Saturday 5/9 1PM - 4PM*** Tucked away in the Castro Valley hills on a sprawling 0.89-acre lot comprised of two separate adjacent parcels, this unique property offers the perfect blend of privacy, space, and natural beauty. Surrounded by abundant wildlife and serene hillside views, the setting feels like your own private retreat—yet remains conveniently close to town. The home features two spacious primary suites, ideal for multi-generational living or hosting guests in comfort. Inside, you’ll find soaring vaulted open-beam ceilings that create an airy, inviting atmosphere, along with central air conditioning for year-round comfort. The heating has two zones and the kitchen has been pre-plumbed with propane if a gas cooktop is preferred. Step outside to enjoy three recently rebuilt decks (one has already been pre-plumbed with propane for your BBQ), providing multiple spaces to relax, entertain, and take in the peaceful surroundings. The home has an attached 2-car garage and it also has a separate driveway leading an attached workshop (approx 9' 8" x 22' 8") and a RV/Boat garage (approx. 11'8" x 22' 8") that are perfect for hobbies, projects, or additional storage. The property is accessed via a private drive with only a handful of neighboring homes, this is a rare opportunity to own a tranquil hillside escape with room to breathe, explore, and truly unwind. The downstairs area has a large office, family room and a full bathroom with a separate entrance and a spiral staircase that connects it to the upstairs living area. There are plenty of separate areas in this home allowing its owner to configure customized usage to meet their specific needs. All section 1 work from the East Valley Termite report dated 9/11/25 has been completed.
Getting Around
Car-Dependent
No Nearby Transit
Somewhat BikeableSchools
Construction
Condition
- Property condition: Existing
- Year built: 1979
Materials
- Foundation: Raised
- Roof: Tile
- Construction materials: Stucco
Type & Style
- Home type: SingleFamily
- Architectural style: Ranch
- Property subType: Residential,Single Family Residence
Interior
Appliances
- Appliances included: Dishwasher,Double Oven,Electric Range,Plumbed For Ice Maker,Oven,Electric Water Heater,Gas Water Heater
- Laundry features: Gas Dryer Hookup,In Garage,Electric
Bathroom
- Features: Shower Over Tub,Tile,Stall Shower
Bedrooms & Bathrooms
- Bedrooms: 3
- Bathrooms: 4
- Full bathrooms: 3
- Partial bathrooms: 1
Features
- Window features: Double Pane Windows
- Flooring: Hardwood,Tile,Vinyl,Carpet
- Number of fireplaces: 1
- Fireplace features: Living Room,Stone,Wood Burning
- Fireplace: Yes
Heating & Cooling
- Heating features: Zoned,Other,Propane
- Cooling features: Ceiling Fan(s),Central Air
Interior Area
- Total structure area: 2,954
- Total interior livable area: 2,954 sqft
Kitchen
- Features: 220 Volt Outlet,Tile Counters,Dishwasher,Double Oven,Electric Range/Cooktop,Disposal,Ice Maker Hookup,Kitchen Island,Oven Built-in
Property
Details
- Parcel number: 85A1550233
- Special condition: Standard
Features
- Levels: Two
- Stories: 2
- Pool features: None
- Patio & porch: Deck,Patio,Porch
- Has view: Yes
- View description: Canyon,Hills
Lot
- Lot size: 0.89 Acres
- Features: Premium Lot,Back Yard,Front Yard,Side Yard
Parking
- Total spaces: 8
- Parking features: Attached,Direct Access,Boat,Garage Door Opener,RV Access/Parking,RV Garage,RV Storage
- Has garage: Yes
- Attached garage spaces: 2
- Covered spaces: 2
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
- Inland Flooding
- Earthquake
- Landslide
- Wildfire
- Heat Wave
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 | $8,034 | $96,408 |
| Home Insurance * | $275 | $3,300 |
| Property Taxes | $1,615 | $19,380 |
| Electricity | $633 | $7,601 |
| Total | $10,557 | $126,684 |
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)
Price History
| Date | Event | Price |
|---|---|---|
| 2026-04-17 | Listed for sale | $1,689,900 |
| 1998-06-10 | Sold | $455,000 |
| 1994-07-14 | Sold | $305,000 |
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