For sale

$999,000

20275 Stanton Ave, Castro Valley, CA 94546

4beds

2baths

1,680sqft

$6,922/mo

Get pre-qualified

Multi Family, Duplex

Built in 1937

-- sqft lot

$1,052,300 Zestimate^®

$595/sqft

$-- HOA

What's special

Private one-car garageDriveway parkingDishwasher for everyday convenienceGenerously sized bedrooms

Don't miss this opportunity in Castro Valley! This well-maintained duplex features two spacious 2-bedroom, 1-bathroom units, each with a private one-car garage and driveway parking. The front unit has been recently remodeled and is filled with natural light throughout. Each unit offers generously sized bedrooms and a kitchen with room to cook, gather, and entertain—complete with a dishwasher for everyday convenience. The back unit has its own backyard for gardening and entertaining. Enjoy a convenient location just a short stroll from Eden Hospital and close to the neighborhood's favorite shops, cafés, and everyday conveniences. Whether you're looking for a savvy investment or a place to call home while generating rental income, this duplex is the one! COME QUICKLY! Only one day of showings - this Wednesday, September 2nd, 10:30- 12 PM & 5- 6 PM.

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Facts & features

Interior

Bedrooms & bathrooms

Bedrooms: 4
Bathrooms: 2

Heating

Wall Furnace

Cooling

No Air Conditioning

Appliances

Laundry: In Garage, In Unit

Features

Tub w/Shower Over
Flooring: Vinyl
Basement: None
Has fireplace: No

Interior area

Total structure area: 1,680
Total interior livable area: 1,680 sqft

Property

Parking

Total spaces: 4
Parking features: Garage Door Opener, Below Ground Parking

Features

Exterior features: Garden/Play

Lot

Size: 5,000 Square Feet
Features: Sloped Up, Back Yard, Front Yard

Details

Parcel number: 84A21626
Special conditions: Standard

Construction

Type & style

Home type: MultiFamily
Property subtype: Multi Family, Duplex
Attached to another structure: Yes

Materials

Wood Siding
Roof: Composition

Condition

Year built: 1937

Utilities & green energy

Electric: No Solar
Sewer: Public Sewer
Water: Public

Community & HOA

Community

Subdivision: Castro Valley

HOA

Has HOA: No

Location

Region: Castro Valley

Financial & listing details

Price per square foot: $595/sqft
Tax assessed value: $1,139,571
Price range: $999K - $999K
Date on market: 8/31/2026
Listing agreement: Excl Right
Listing terms: Cash,Conventional,FHA
Lease term: Month To Month,12 Months
Total actual rent: 5370
Tenant pays: Electricity, Gas, Water

Estimated market value

$1,052,300

$947,000 - $1.16M

$2,619/mo

Price history

Date	Event	Price
8/31/2026	Listed for sale	$999,000+212.7%$595/sqft
Source: Bay East AOR #41144643 Report a problem
11/21/2025	Sold	$319,500$190/sqft
Source: Public Record Report a problem

Public tax history

Year	Property taxes	Tax assessment
2026	--	$1,139,571 -0.1%
2025	$15,065 +2.3%	$1,140,790 +2%
2024	$14,721 +1.7%	$1,118,430 +2%
2023	$14,473 +442%	$1,096,500 +914.1%
2022	$2,670 +3.3%	$108,125 +2%
2021	$2,586 +2.7%	$106,005 +1%
2020	$2,518 -0.9%	$104,918 +2%
2019	$2,540 +6.3%	$102,861 +2%
2018	$2,390	$100,846 +2%
2017	$2,390 +4.8%	$98,867 +2%
2016	$2,279 +11.7%	$96,930 +1.5%
2015	$2,041	$95,473 +2%
2014	$2,041	$93,603 +0.5%
2013	--	$93,181 +2%
2012	--	$91,354 +2%
2011	--	$89,563 +0.8%
2010	--	$88,893 -0.2%
2009	--	$89,105 +2%
2008	--	$87,358 +2%
2007	--	$85,645 +2%
2006	--	$83,966 +2%
2005	--	$82,320 +2%
2004	--	$80,706 +1.9%
2003	--	$79,227 +2%
2002	--	$77,674 +2%
2001	$1,296	$76,152