4683 Proctor Rd, Castro Valley, CA, 94546
About This Home
Completed in 2025 and set on an expansive 10,000+ square foot lot in the Castro Valley Hills, this one-of-a-kind custom-built residence offers 4,216 square feet of uncompromising luxury living with breathtaking Bay views. Soaring 10-foot ceilings, wide-plank hardwood floors, top-of-the-line appliances, and impeccably curated high-end finishes set the tone from the moment you enter. The main level features two bedroom suites — including a grand primary suite — a private office, and a half bathroom, with sweeping Bay views enjoyed from the expansive balcony. The lower level impresses equally with a second primary suite, two additional bedroom suites, a gym and storage room, a half bathroom, and a spacious family room complete with a sophisticated wet bar — perfect for entertaining or multi-generational living. Five bedroom suites, a private office, five full bathrooms, and two half bathrooms in total. A dual-zone HVAC system, solar lease for energy efficiency, and low-maintenance front and back yards round out this extraordinary offering. A rare opportunity to own a brand-new custom estate in one of the East Bay’s most desirable communities — this one truly has it all.
Getting Around
Car-Dependent
Minimal Transit
Somewhat BikeableSchools
Construction
Condition
- Property condition: Existing
- Year built: 2025
Materials
- Roof: Composition
- Construction materials: Stucco
Type & Style
- Home type: SingleFamily
- Architectural style: Contemporary
- Property subType: Residential,Single Family Residence
Interior
Appliances
- Appliances included: Range,Dryer,Washer
Bedrooms & Bathrooms
- Bedrooms: 5
- Bathrooms: 7
- Full bathrooms: 5
- Partial bathrooms: 2
Features
- In-Law Floorplan,Breakfast Bar,Breakfast Nook,Counter - Solid Surface
- Flooring: Hardwood,Tile
- Fireplace features: None
Heating & Cooling
- Heating features: Forced Air,Zoned
- Cooling features: Central Air
Interior Area
- Total structure area: 4,216
- Total interior livable area: 4,216 sqft
Kitchen
- Features: Breakfast Bar,Breakfast Nook,Counter - Solid Surface,Stone Counters,Kitchen Island,Range/Oven Built-in
Property
Details
- Parcel number: 84D140353
- Special condition: Standard
Features
- Levels: Two
- Stories: 2
- Pool features: None,Solar Pool Leased
Lot
- Lot size: 0.25 Acres
- Features: Level,Back Yard,Front Yard
Parking
- Total spaces: 2
- Parking features: Attached
- 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
- Earthquake
- 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 | $13,551 | $162,612 |
| Home Insurance * | $414 | $4,968 |
| Property Taxes | $1,697 | $20,364 |
| Electricity | $904 | $10,848 |
| Total | $16,566 | $198,792 |
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 |
|---|---|---|
| 2026-05-07 | Listed for sale | $2,680,000 |
View on Zillow