Alameda County  »  18950 Madison Ave

18950 Madison Avenue, Castro Valley, CA 94546 Property Information

18950 Madison Avenue, Castro Valley, CA 94546 Property Information

  • General
  • Owner
  • Documents
  • Tax
  • Permits
  • Neighborhood
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18950 Madison Avenue, Castro Valley, CA 94546
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Address

Primary address 18950 Madison Avenue, Castro Valley
Zip code 94546
County Alameda
Parcel ID 84C-794-4

Sales & Tax Overview for 18950 Madison Avenue, Castro Valley

View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.

Sale date 06/03/2008
Sale price $495,000
Arm's length
Current property tax $7,486

Lot & Building Information for 18950 Madison Avenue, Castro Valley

Building sqft 1,421
Building class Single Family Residential Homes Used as Such (1100)
Acreage 0.12
Units 1
Year built 1949
Stories 1
Bedrooms 2
Bathrooms 2
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Zoning, Use & Area Overview

Walk Score
Transit Score
Bike Score


Zoning district Single Family Residential (R1-CSU-RV)
School district Castro Vly Unif SCH

View more neighborhood information such as transportation, nearby schools and risk designations in the dedicated tab.

Other Property Data for 18950 Madison Avenue, Castro Valley

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  • • Improvements for 18950 Madison Avenue, Castro Valley , including their type, square footage, grade and when they were built.
  • Development maps such as planimetric, zoning, land use and urban landscape maps (building age and stories).
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About 18950 Madison Avenue, Castro Valley

What is the year built & the total sq. ft. for 18950 Madison Avenue, Castro Valley, CA 94546?

18950 Madison Avenue, Castro Valley, CA 94546 was built in 1949 and has a total of 1,421 square feet.

What is the assessed value of 18950 Madison Avenue, Castro Valley, CA 94546 and the property tax paid?

Assessed at $650,147, the tax amount paid for 18950 Madison Avenue, Castro Valley, CA 94546 is $7,567.

When was 18950 Madison Avenue, Castro Valley, CA 94546 last sold and what was the last sale price?

18950 Madison Avenue, Castro Valley, CA 94546 was last sold in 06/03/2008 for $495,000.

Ownership Information

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Real Estate Reports:
Eliza Theiss, Jul 22, 2026 Prices Rise in 32 of NYC’s Leading Neighborhoods as City and Manhattan Hit Record Highs
Q2 2026 saw NYC and Manhattan reach historic highs, with Brooklyn and Queens marking close to new records as well. Meanwhile, Hudson Yards remained at the top, Central Midtown posted its highest price ever and Carroll Gardens marked its third consecutive quarter over $2 million
Laura Pop-Badiu, Jul 15, 2026 How to Find Property Owners — The Complete Guide 
For real estate professionals looking for the best ways to find property owners — whether through free methods based on public sources or paid tools with verified, in-depth data — this comprehensive guide breaks down every step of the due diligence process.
Eliza Theiss, Jul 08, 2026 2026 Q2 Foreclosure Report: Bronx Caseload Hits 7-Year High, Brooklyn & Manhattan Slow to 4-Year Low
Manhattan yet again slowed to become the city’s least active foreclosure market, Brooklyn’s caseload dropped so low it barely edged out Staten Island, while the Bronx heated up enough to surpass all boroughs except Queens.
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Past Sales & Property History for 18950 Madison Avenue, Castro Valley

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Purchase date Purchase price Buyer name Seller name
06/03/2008 $495,000
03/30/1988 $64,000
       
       
       
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Title Documents for 18950 Madison Avenue, Castro Valley

To view the complete history of deeds, mortgages, assignments of leases and rents, and more, sign up for free. Available data goes back to 1966.

Date Type Amount Party 1 Party 2 Maturity Document Doc image
06/03/2008 Deed
06/03/2008 Deed
11/05/2002 Deed
03/30/1988 Deed
               
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R: Recorded date
D: Document date

Property Taxes for 18950 Madison Avenue, Castro Valley

Access detailed property tax data for 18950 Madison Avenue, Castro Valley, CA 94546. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.

Tax year: 2025-2026
Base tax $7,568
Current property tax $7,486
Market value $650,147

Assessment History for 18950 Madison Avenue, Castro Valley

Here's the assessment & property tax history for 18950 Madison Avenue, Castro Valley, including the evolution of the total tax rate and corresponding property tax.

Year Assessment value Total tax rate Property tax Year over year change
2025-2026 $650,147 1.164 $7,568 +0.69%
2024-2025 $637,401 1.1791 $7,516 -48.84%
2023-2024 $624,907 2.3508 $14,690 +101.36%
2022-2023 $612,655 1.1908 $7,295 +2.52%
2021-2022 $600,647 1.1848 $7,116 +2.28%

Permits for 18950 Madison Avenue, Castro Valley

The complete history of permits filed for 18950 Madison Avenue, Castro Valley, including new construction or demolition permits, plus any work pertaining to plumbing, heating and sprinkler systems is available with a free account. Available data goes back to 1990.

Issued Permit Type Status
05/13/2026
       
       
       
       
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Castro Valley residential market stats

Median Sale Price
$1,013,750
-2.9% YoY
Median Price/Sqft
$619
-9.8% YoY
Alameda County Median Sale Price
$955,000
-6.4% YoY

Access a detailed real estate market overview of Castro Valley so you can assess current trends, home values, types of properties sold and transaction volume. View the median home sale price in Castro Valley and compare it to other neighborhoods in Alameda County.

Check out recently sold homes in Castro-Valley and see how their prices compare.

Risk

Create a free account to unlock extended information for 18950 Madison Avenue, Castro Valley, including whether it's located in FEMA flood zones, floodways or special flood hazard areas, as well as the Coastal barriers resources system area (COBRA).

FEMA flood zone(s) X (See more on map)
Fire hazard zone See more on map
Faults and tsunami inundation zone map
Landslides and liquefaction map

Transportation

Access the detailed traffic volume map for 18950 Madison Avenue, Castro Valley to see estimated average daily traffic on streets surrounding the property as well as the types of properties in its vicinity.

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Schools

Nearest elementary schools

Name Rating Type Grade range No of students Distance (miles)
Early Bird Montessori School NR Private PK, K-1 30 0.23
Early Bird Montessori School NR Private PK, K-1 30 0.23
Vannoy Elementary School 7 Public K-5 441 0.24
Castro Valley Adult And Career Education NR Public 0 0.40
Alma Preschool NR Public 52 0.44

Nearest middle schools

Name Rating Type Grade range No of students Distance (miles)
Castro Valley Adult And Career Education NR Public 0 0.40
Alma Preschool NR Public 52 0.44
Redwood Christian Schools NR Private K-12 706 0.51
Creekside Middle School 8 Public 6-8 760 0.52
Canyon Middle School 6 Public 6-8 1,332 0.67

Nearest high schools

Name Rating Type Grade range No of students Distance (miles)
Castro Valley Adult And Career Education NR Public 0 0.40
Alma Preschool NR Public 52 0.44
Redwood Christian Schools NR Private K-12 706 0.51
Castro Valley High School 9 Public 9-12 2,799 0.76
Liberty School NR Private 1-12 0 1.23

Data provided by GreatSchools.org © 2025. All rights reserved.

Neighbors for 18950 Madison Avenue, Castro Valley

Here are the neighbors for 18950 Madison Avenue, Castro Valley.

Address Square feet Purchase date Purchase price
5069 August CT, Castro Valley 1,916 09/03/2019
5051 August CT, Castro Valley 2,056 10/27/2016
5065 Rahlves Dr, Castro Valley 1,238 08/12/2002
18798 Madison Ave, Castro Valley 1,832 02/17/2026 $1,166,000
18792 Madison Ave, Castro Valley 1,688 08/24/2023
18802 Madison Ave, Castro Valley 1,650 02/05/2015
4968 Vannoy Ave, Castro Valley 1,854 10/29/2019 $242,000
18810 Madison Ave, Castro Valley 1,003 04/06/2026 $873,000
5072 Ray Ave, Castro Valley 1,160 09/29/2021
5038 August CT, Castro Valley 1,238 05/24/2013 $550,000
5036 Ray Ave, Castro Valley 1,028 02/21/2017
19400 Merrill Pl, Castro Valley 2,113 11/28/2023
18814 Madison Ave, Castro Valley 948 04/26/2024
4805 Kathleen Ave, Castro Valley 902 01/10/2023 $750,000
5057 August CT, Castro Valley 2,574 02/09/2001
18881 Center St, Castro Valley 1,160 12/07/2018
18786 Madison Ave, Castro Valley 1,784 01/26/2017 $808,000
5012 Ray Ave, Castro Valley 1,236 03/06/2017
5042 Ray Ave, Castro Valley 1,637 05/25/2022 $1,500,000
4461 James Ave, Castro Valley 2,304 12/11/2015 $931,000

Nearby ZIP Codes for 18950 Madison Avenue, Castro Valley

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