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$1,225,000 Just Listed
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Property Description
Tucked quietly along a peaceful Castro Valley street, this home is the kind of opportunity buyers are always hoping to find; a property that feels warm and welcoming from the moment you arrive, with room to enjoy today and endless potential for what it could become over time. Inside, original hardwood floors run throughout much of the home, while the comfortable 4-bedroom, 2-bath layout offers a sense of space that feels both functional and inviting. Every room reflects years of thoughtful care, creating a home that feels solid, lived in, and ready for its next chapter. At the heart of the home, an expanded dining room surrounded by walls of windows brings in natural light from every angle. It's the kind of space that naturally becomes the gathering place of the home; morning coffee overlooking the yard, holiday dinners with family, or slow evenings spent lingering around the table with friends. Step outside and the possibilities continue. The backyard offers multiple spaces to relax, garden, entertain, or simply enjoy the privacy and peaceful setting. Perched above the home, a detached garage has been converted into a bonus space complete with its own deck overlooking the property below. Beneath it, an expansive workshop creates even more flexibility; ideal for storage, hobbies, a home gym, creative studio, or future ADU potential for buyers looking to maximize the property over time. This is the kind of home that sparks ideas the moment you walk through the door. Move right in and enjoy its charm exactly as it is, or slowly transform it into something truly special while building long-term value along the way.
Full Property Details
Full Property Details for 18508 Madison Ave
General
- Price: $1,225,000
- Status: Active
- Type: Single Family
- Source: MAX
- MLS ID: 41135921
- Updated: Today (5/26/2026)
- Added to Site: Today
Interior
- Number of Rooms: 8
- Interior Features: Storage, Workshop
- Number of Fireplaces: 1
- Fireplace(s): Family Room
- Appliances: Dishwasher, Free-Standing Range
- Flooring: Hardwood, Linoleum, Carpet
Rooms
Bathrooms
- Total Bathrooms: 2
- Full Bathrooms: 2
Bedrooms
- Total Bedrooms: 4
Other Rooms
- Kitchen: Tile Counters, Dishwasher, Freestanding Range/Oven
- Laundry: Laundry Room
Additional Information
- Equipment: None
Exterior
- Exterior Features: Back Yard, Front Yard
Parking
- Garage Spaces: 2
- Parking Features: Carport - 2 Or More, Detached
Location
- Area: Listing
- County: Alameda
- Subdivision: Castro Valley
- Driving Directions: Address hard to locate; at the corner of Seaview Ave & Common Road; follow directional..
Heating & Cooling
- Cooling Type: No Air Conditioning
- Heating Type: Zoned
Utilities
- Sewer: Public Sewer
- Water: Public
Structural Information
- Architectural Style: Traditional
- Exterior Const.: Siding - Stucco
- Roof: Shingle
- Stories/Levels: One Story
- Year Built: 1952
Lot Features
- Lot Size (Acres): 0.3
- Lot Dimensions: 13068
- Lot Features: Sloped Up, Back Yard
- Fencing (Description): Fenced, Wood
Financial Considerations
- For Sale: Yes
- Price Per Sq. Ft.: $562
Disclosures and Reports
- Property ID: 84C88517
Listed by Compass, Jessica Nance
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Schools
Schools serving 18508 Madison Ave
School District:Castro Valley Unified School District
| Name | Grades | Distance |
|---|---|---|
Vannoy Elementary School 5100 Vannoy Avenue, Castro Valley, CA 94546 | K-5 | 0.4 mi |
Canyon Middle School 19600 Cull Canyon Road, Castro Valley, CA 94552 | 6-8 | 0.8 mi |
Creekside Middle School, Castro Valley, CA 19722 Center Street, Castro Valley, CA 94546 | 6-8 | 0.9 mi |
Castro Valley High School 19400 Santa Maria Avenue, Castro Valley, CA 94546 | 9-12 | 0.9 mi |
Disclaimer:
School attendance boundaries provided by ATTOM Data Solutions and are for reference only. Contact the school directly to verify enrollment eligibility.
Price & Sales History for 18508 Madison Ave
Date
Details
Price
Change
Source
5/26/2026
Listed
$1,225,000
—
MLS
Disclaimer: Historical sales information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.
Tax History
Tax History for 18508 Madison Ave
Year
Property Taxes
Change
Tax Assessment
Change
2024
$2,336
—
$130,056
-3%
2024
$2,336
3%
$134,369
2%
2023
$2,276
3%
$131,735
2%
2022
$2,213
3%
$129,152
2%
2021
$2,149
2%
$126,620
1%
2020
$2,097
-1%
$125,322
2%
2019
$2,122
3%
$122,864
2%
2018
$2,059
3%
$120,455
2%
2017
$2,001
5%
$118,095
2%
2016
$1,903
7%
$115,779
2%
2015
$1,778
3%
$114,042
2%
2014
$1,730
2%
$111,808
—
2013
$1,694
—
$111,303
—
Disclaimer: Historical tax information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.
Estimate the Cost
Estimate the Cost for 18508 Madison Ave
18508 Madison Ave, Castro Valley, CA 94546 (MLS# 41135921) is a Single Family property with 4 bedrooms and 2 full bathrooms. 18508 Madison Ave is currently listed for $1,225,000 and was received on May 26, 2026. Want to learn more about 18508 Madison Ave? Do you have questions about finding other Single Family real estate for sale in Castro Valley? You can browse all Castro Valley real estate or contact a Coldwell Banker agent to request more information.

