See other homes in:
Primary listing photo
Listing photo 2
Listing photo 3
Listing photo 4
Listing photo 5

18508 Mountain Ln, Castro Valley, CA, 94552

5beds
2baths
2,050sqft
$1,695,000
$827price/sqft
$11,028/moest. monthly cost
$441,120/yrincome needed

About This Home

This exquisitely updated five-bedroom Eichler seamlessly blends iconic mid-century architecture with refined modern design, sitting on a flat .31-acre lot. Originally designed by renowned architectural firm Jones & Emmons for Joseph Eichler, the home has been thoughtfully reimagined while preserving the clean lines, natural materials, and indoor-outdoor living that define its architectural legacy. A serene open-air atrium welcomes you into the heart of the home. The open-concept living, dining, and kitchen areas flow effortlessly together, with walls of glass and direct access to the surrounding outdoor spaces. Vaulted ceilings and beams enhance the sense of volume, while an exposed wood feature wall adds warmth and character. At the center of the home, the sleek designer kitchen features a quartz waterfall island, Carrara marble backsplash, premium stainless-steel appliances, an induction cooktop, a wine refrigerator, and generous pantry storage. The private primary wing is a tranquil retreat with direct backyard access and a spa-inspired en suite bathroom featuring a dual shower head and a double vanity. An adjacent fifth bedroom/office opens to the atrium, providing a flexible space. On the opposite side of the home, three generously sized bedrooms offer privacy and comfortable separation of space. The thoughtfully landscaped yard features redwood trees, well-landscaped grounds, and turf that create a peaceful setting. The expansive rear patio provides abundant space for outdoor dining, entertaining, and relaxation, equally suited for everyday living and special occasions. Located in Castro Valley's sought-after Greenridge neighborhood, the home offers a tranquil residential setting with convenient access to parks and trails at Greenridge Park, Cull Canyon Park, and Lake Chabot. Castro Valley BART and major commute corridors are within easy reach, providing excellent connectivity throughout the Bay Area.

Getting Around

8
WalkingCar-Dependent
0
TransitNo Nearby Transit
3
BikeSomewhat Bikeable

Schools

9/10
7/10
Canyon Middle SchoolGrades 6-80.8 mi
9/10
Castro Valley High SchoolGrades 9-121.9 mi

Construction

Condition

  • Property condition: Updated/Remodeled
  • Year built: 1963

Type & Style

  • Home type: SingleFamily
  • Architectural style: Mid-Century
  • Property subType: Single Family Residence

Interior

Bedroom1

  • Area: 0

Bedroom2

  • Area: 0

Bedroom3

  • Area: 0

Bedroom4

  • Area: 0

Bedrooms & Bathrooms

  • Bedrooms: 5
  • Bathrooms: 2
  • Full bathrooms: 2

Dining Room

  • Area: 0

Family Room

  • Area: 0

Features

  • Cathedral Ceiling(s),Beamed Ceilings

Heating

  • Heating features: Radiant

Interior Area

  • Total structure area: 2,050
  • Total interior livable area: 2,050 sqft

Kitchen

  • Features: Kitchen Island, Quartz Counter
  • Area: 0

Living Room

  • Features: Cathedral/Vaulted, Beamed Ceilings
  • Area: 0

Master Bathroom

  • Features: Double Vanity, Radiant Heat

Master Bedroom

  • Area: 0

Property

Details

  • Parcel number: 0851606040
  • Special condition: Standard

Lot

  • Lot size: 0.31 Acres

Parking

  • Total spaces: 4
  • Parking features: Attached,Covered,Side By Side,On Site (Single Family Only)
  • Has garage: 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
    EarthquakeVery High
  • Inland Flooding
    Inland FloodingRelatively High
  • Landslide
    LandslideRelatively High
  • Wildfire
    WildfireRelatively High
  • Heat Wave
    Heat WaveModerate

How This Home’s Risks Compare

Earthquake
Inland Flooding
Landslide
Wildfire
Heat Wave

FEMA Declared Disasters in Alameda County and California

Earthquake
Flood
Mud Landslide
Severe Ice Storm
Severe Storm
Straight Line Winds
Tropical Storm
Winter Storm

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

MonthlyAnnual
Mortgage $8,570$102,840
Home Insurance *$294$3,528
Property Taxes $1,725$20,700
Electricity $439$5,275
Total$11,028$132,336
*Does not include cost of any FAIR Plan premiums

Income You'd Need if You Spent...

35% on housing$378,102/yr
40% on housing$330,840/yr
45% on housing$294,080/yr

California FAIR Plan Programs

California FAIR Plan Association

Covered
WildfireWildfire
Visit Website →
Current Policies
Residential: 417,310Commercial: 13,990
Total Premiums$1.42B
Total Exposure$429.84B

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.

Insurance Growth Rate5-year average: 6.9%
6.9%
0%30.0%
Electricity Growth Rate10-year average: 4.3%
4.3%
0%15.0%
Property Taxes Growth Rate2-year average: 2.0%
2.0%
0%15.0%
Income Spent on Housing
30%
30%45%

Comparing Against the Market

Price Per Sq Ft

$827This listing

vs Other Active Listings

Avg $/sqft

ZIP 94552$697
Alameda County$497

vs Homes Sold Last Month

Median $/sqft

ZIP 94552$734
Alameda County$664

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

DateEventPrice
2026-08-05Pending sale$1,695,000
2026-07-23Listed for sale$1,695,000
2018-05-04Sold$1,500,000
2018-04-18Pending sale$1,394,900
2018-04-10Listed for sale$1,394,900
2017-11-08Sold$865,000
2017-08-21Sold$691,000

For Sale by Agent

AgentMaddy Mazzola
BrokerageCompass

Similar Homes