18127 Madison Ave
Castro Valley, CA 94546
Map
- 9 beds
- 6 baths
- 4,930 sqft
- ~1 acre lot
- $583 per sqft
- 1945 build
- – on site
Unique Opportunity to own two spacious homes plus an attached In-Law Unit on nearly a one acre lot in one of Castro Valley’s most coveted neighborhoods. Discover a truly unique property tucked away on a private road on a generous .98-acre lot. This exceptional estate is perfect for fabulous living, multigenerational living, producing income, flexible work-from-home setups and other opportunities. Gorgeous front home has 5 bedrooms with just over 3,000 sq ft of light-filled living space and solar panels. Spacious kitchen featuring granite countertops. Expansive patio area ideal for outdoor entertaining. Attached ADU has its own seperate entrance and fenced in yard. Parking pad that can accommodate RV, boat, and multiple vehicles.The back home has 4 bedrooms, 2 bathrooms, dining room, living room ,laundry room and approximately 1850 sq. ft. of living space. The home has so much to offer. Surrounded by mature fruit trees-tangerine, lemon, pomegranate, and pomelo. Enjoy serene privacy behind gated access, while still being just minutes from top-rated schools ,Castro Village Shopping Center ,CV Marketplace & CV BART station. Easy access to freeway .This property offers incredible flexibility, natural beauty, and an unbeatable location. Schedule your private showing today!
Last checked:
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Checking…
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Last updated Jun 13, 2025
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MLS# 41100873 —
This home is listed in more than one place. See it here.
The Building
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Year Built:1945
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Building Area Units:Square Feet
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New Construction:false
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Construction Materials:Stucco
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Builder Name:contemporary
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Architectural Style:Contemporary
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Roof:Shingle
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Stories:1
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Levels:One Story
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Basement:Crawl Space
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Window Features:Double Pane Windows
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Security Features:Carbon Monoxide Detector(s)
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Building Area Total:4930
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Building Area Source:Public Records
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Direction Faces:North
Interior
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Interior Features:In-Law Floorplan
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Kitchen Features:Stone Counters, Dishwasher, Double Oven, Eat-in Kitchen, Electric Range/Cooktop, Disposal, Range/Oven Built-in, Range/Oven Free Standing
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Flooring:Hardwood
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Rooms Total:17
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Fireplace:true
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Fireplaces Total:3
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Fireplace Features:Family Room
Room Dimensions
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Living Area:4930
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Living Area Units:Square Feet
Location
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Directions:Seaview to Madison
The Property
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Property Type:Residential
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Property Subtype:Single Family Residence
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Property Condition:Existing
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Exterior Features:Back Yard
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Parcel Number:84C92017
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Lot Features:2 Houses / 1 Lot
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Lot Size Area:0.98
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Lot Size Acres:0.98
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Lot Size SqFt:42851
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Lot Size Units:Acres
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Fencing:Fenced
Listing Agent
- Contact info:
- Agent phone:
- (510) 584-1333
Beds
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Bedrooms Total:9
Baths
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Total Baths:6
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Full Baths:5
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Partial Baths:1
The Listing
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Listing Terms:Cash
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Special Listing Conditions:Standard
Heating & Cooling
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Heating:Gravity
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Heating:true
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Cooling:Ceiling Fan(s)
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Cooling:true
Utilities
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Electric:Other Solar
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Green Energy Generation:Solar
Appliances
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Appliances:Dishwasher
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Laundry Features:Laundry Room
Schools
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High School District:CASTRO VALLEY UNIFIED SCHOOL DISTRICT
The Community
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Subdivision Name:CASTRO VALLEY
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Association:false
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Pool Private:true
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Pool Features:In Ground
Parking
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Garage:false
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Attached Garage:false
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Carport:false
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Parking Total:8
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Parking Features:Parking Spaces
Monthly cost estimate
Asking price
$2,875,000
| Expense | Monthly cost |
|---|---|
|
Mortgage
This calculator is intended for planning and education purposes only. It relies on assumptions and information provided by you regarding your goals, expectations and financial situation, and should not be used as your sole source of information. The output of the tool is not a loan offer or solicitation, nor is it financial or legal advice. |
$15,394
|
| Taxes | N/A |
| Insurance | $790 |
| Utilities | $316 See report |
| Total | $16,500/mo.* |
| *This is an estimate |
Walk Score®
Provided by WalkScore® Inc.
Walk Score is the most well-known measure of walkability for any address. It is based on the distance to a variety of nearby services and pedestrian friendliness. Walk Scores range from 0 (Car-Dependent) to 100 (Walker’s Paradise).
Bike Score®
Provided by WalkScore® Inc.
Bike Score evaluates a location's bikeability. It is calculated by measuring bike infrastructure, hills, destinations and road connectivity, and the number of bike commuters. Bike Scores range from 0 (Somewhat Bikeable) to 100 (Biker’s Paradise).
Transit Score®
Provided by WalkScore® Inc.
Transit Score measures a location's access to public transit. It is based on nearby transit routes frequency, type of route (bus, rail, etc.), and distance to the nearest stop on the route. Transit Scores range from 0 (Minimal Transit) to 100 (Rider’s Paradise).
Soundscore™
Provided by HowLoud
Soundscore is an overall score that accounts for traffic, airport activity, and local sources. A Soundscore rating is a number between 50 (very loud) and 100 (very quiet).
Air Pollution Index
Provided by ClearlyEnergy
The air pollution index is calculated by county or urban area using the past three years data. The index ranks the county or urban area on a scale of 0 (best) - 100 (worst) across the United Sates.
Sale history
| Date | Event | Source | Price | % Change |
|---|---|---|---|---|
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6/10/25
Jun 10, 2025
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Listed / Active | BRIDGE | $2,875,000 | 228.6% (9.7% / YR) |
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10/12/01
Oct 12, 2001
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BRIDGE | $875,000 | ||
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10/12/01
Oct 12, 2001
|
BRIDGE | $875,000 |
