OFF MARKET

Off market oct 2005 for $843K

$1,378,287

Est. refi paymentEst. refi $5,677/mo

•

2,125

sq ft

19087 Helton St, Castro Valley, CA 94546

About this home

Single-familyProperty Type

1975Year Built

$649Est. Price/Sq.Ft.

2 car garageParking

Listed by Bill Swisher •DRE #00932403 • RE/MAX IN MOTION

Bought with Dennis O'laughlin •DRE #00570904 • O'Laughlin Realty & Inv

Redfin checked: 3 minutes ago

•Source:bridgeMLS, Bay East AOR, or Contra Costa AOR #40102140

Redfin Estimate

$1,378,287

$535K since sold in October 2005$8,000 since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 6.4% higher than the average sale price ($1.30M) of 6 comparable homes.

SOLD AUG 17, 2026
$1,400,000
A
4 beds2.5 baths2,134 sq ft
19009 Helton St, Castro Valley, CA 94546
SOLD OCT 13, 2026
$1,135,000
B
3 beds2 baths1,740 sq ft
19026 Center St, Castro Valley, CA 94546
SOLD JUL 30, 2026
$1,350,000
C
4 beds3 baths2,645 sq ft
4592 Edwards Ln, Castro Valley, CA 94546
SOLD JUL 10, 2026
$1,265,500
D
3 beds2 baths2,164 sq ft
4591 Edwards Ln, Castro Valley, CA 94546
SOLD JUN 12, 2026
$1,475,000
E
3 beds2 baths1,928 sq ft
17880 Apricot Way, Castro Valley, CA 94546
SOLD JUL 14, 2026
$1,150,000
F
3 beds2 baths1,681 sq ft
18650 Center St, Castro Valley, CA 94546

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Sell

$1,015,927

Est. take-home

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Rent

$4,091/mo

Redfin rental estimate

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Market trends in 94546, CA

Last updated September 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-list price

103.4%

0.6% MoM

Median sale price

$1.1M

$823 MoM

Avg. days on market

18d

3 days MoM

Recently sold homes

7 MoM

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See all

Provided by Redfin

Sale history for 19087 Helton St

Year

Property tax

Land + Additions

Assessment*

2025

$14,380 (+2.2%)

$352,486 + $822,469

$1,174,955

2024

$14,068 (+1.5%)

$345,577 + $806,348

$1,151,925

2023

$13,856 (+1.9%)

$338,802 + $790,539

$1,129,341

2022

$13,601 (+2.6%)

$325,649 + $759,848

$1,085,497

2021

$13,258 (+2.3%)

$325,649 + $759,848

$1,085,497

2020

$12,957 (−1.9%)

$319,266 + $744,954

$1,064,220

2019

$13,203 (+6.4%)

$315,993 + $737,318

$1,053,311

2018

$12,403 (+8.9%)

$309,799 + $722,866

$1,032,665

2017

$11,385 (+8.5%)

$270,000 + $630,000

$900,000

2016

$10,491 (+19.0%)

$270,000 + $630,000

$900,000

2015

$8,818 (+0.7%)

$255,900 + $597,100

$853,000

2014

$8,754 (+23.5%)

$221,700 + $517,300

$739,000

2013

$7,087 (+3.3%)

$221,700 + $517,300

$739,000

2012

$6,862 (−0.5%)

$177,600 + $414,400

$592,000

2011

$6,897 (−7.2%)

$171,900 + $401,100

$573,000

2010

$7,430 (−9.0%)

$171,900 + $401,100

$573,000

2009

$8,167 (−8.7%)

$186,000 + $434,000

$620,000

2008

$8,941

$204,900 + $478,100

$683,000

Tax history for 19087 Helton St

Year

Property tax

Land + Additions

Assessment*

2025

$14,380 (+2.2%)

$352,486 + $822,469

$1,174,955

2024

$14,068 (+1.5%)

$345,577 + $806,348

$1,151,925

2023

$13,856 (+1.9%)

$338,802 + $790,539

$1,129,341

2022

$13,601 (+2.6%)

$325,649 + $759,848

$1,085,497

2021

$13,258 (+2.3%)

$325,649 + $759,848

$1,085,497

2020

$12,957 (−1.9%)

$319,266 + $744,954

$1,064,220

2019

$13,203 (+6.4%)

$315,993 + $737,318

$1,053,311

2018

$12,403 (+8.9%)

$309,799 + $722,866

$1,032,665

2017

$11,385 (+8.5%)

$270,000 + $630,000

$900,000

2016

$10,491 (+19.0%)

$270,000 + $630,000

$900,000

2015

$8,818 (+0.7%)

$255,900 + $597,100

$853,000

2014

$8,754 (+23.5%)

$221,700 + $517,300

$739,000

2013

$7,087 (+3.3%)

$221,700 + $517,300

$739,000

2012

$6,862 (−0.5%)

$177,600 + $414,400

$592,000

2011

$6,897 (−7.2%)

$171,900 + $401,100

$573,000

2010

$7,430 (−9.0%)

$171,900 + $401,100

$573,000

2009

$8,167 (−8.7%)

$186,000 + $434,000

$620,000

2008

$8,941

$204,900 + $478,100

$683,000

*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.

Public record

Public record
Zoning
Permits

Beds

Baths

Stories

—

Lot width

—

Lot depth

—

Lot size

6,473 Sq. Ft.

Year renovated

1977

Sq. Ft.

1,957

Year built

1975

Style

Single Family Residential

County

Alameda County

APN

084C100101600

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Sep 17, 2026.

Single-Family Residence Districts

Single-family residence districts, hereinafter designated as R-1 districts, are established to provide for and protect established neighborhoods of one-family dwellings, and to provide space in suitable locations for additional development of this kind, together with appropriate community facilities and allowance for restricted interim cultivation of the soil compatible with such low-density residential development.

Permitted uses

Include but are not limited to:

Housing-Single unit
Agriculture-Cropland
Agriculture-Grove / orchard

Jan 4, 2023 • Final

Building

Perform a voluntary earthquake strengthening upgrade to the foundation of a single-family home. Install anchor plates and clips in accordance with standard plan sets and building codes.

Remodel

Oct 27, 1998 • Final

Building

Gas

Permit history is from public records and may be incomplete or inaccurate. Redfin and its agents make no representations about the property condition or permit status. Buyers should independently verify all information.

Property details

Parking

Parking Information
Has Attached Garage
Garage Spaces: 2
Covered Spaces: 2
Parking Features: Attached

Interior

Bathroom Information
# of Bathrooms Total: 2
# of Bathrooms Full: 2
Primary Bathroom Included Features: Stall Shower, Tile, Tub with Jets, Updated Baths

Interior Features
Interior Features: No Additional Rooms, Breakfast Bar, Tile Counters, Eat-in Kitchen, Updated Kitchen
Appliances: Dishwasher, Refrigerator, Gas Water Heater
Laundry Features: 220 Volt Outlet, Dryer, Laundry Room
Street Level Features: 4 Bedrooms, 2 Baths, Primary Bedrm Retreat, Main Entry
Window Features: Double Pane Windows, Window Coverings
Fireplaces Total: 2
Has Fireplace
Flooring: Hardwood, Tile, Carpet

Room Information
Kitchen Features: Breakfast Bar,Counter - Tile,Dishwasher,Eat In Kitchen,Refrigerator,Updated Kitchen
Rooms Total: 8
Fireplace Features: Family Room, Stone, Wood Burning

Exterior

Building Information
Construction Materials: Stucco
Building Area Total: 2,125
Builder Name: Blackwell

Exterior Features
Patio And Porch Features: Covered
Exterior Features: Back Yard, Front Yard, Sprinklers Automatic
Fencing: Fenced

Property Information
Living Area: 2125
Living Area Units: Square Feet
Property Type: Residential
Property Sub Type: Single Family Residence
Year Built: 1975

Lot Information
Lot Size Square Feet: 0
Lot Size Units: Acres
Zoning: 1001

Utilities

Utility Information
Water Source: Public

Heating & Cooling
Has Heating
Heating: Forced Air
Cooling: Central Air

Location

School Information
High School District: Castro Valley (510) 537-3000

Public facts

Beds: 4
Baths: 3.0
Sq. Ft.: 1,957
Stories: —
Lot Size: 6,473 square feet
Style: Single Family Residential
Year Built: 1975
Year Renovated: 1977
County: Alameda County
APN: 084C100101600

Home facts updated by county records on Sep 17, 2026

Around this home

Schools

Vannoy Elementary School

Public K-5 • Assigned • 0.2mi

9/10

Canyon Middle School

Public 6-8 • Assigned • 0.4mi

7/10

Castro Valley High School

Public 9-12 • Assigned • 1.0mi

9/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Local insights from Redfin agents

Castro Valley remains a highly competitive market. On average, homes are selling for 103.7% of their asking price, with nearly 60% of properties closing above list price.
5 days ago • Castro Valley
Karan Kandel
Redfin agent
13 deals
Was this helpful?
Castro Valley's fall market offers great buyer leverage. While median prices hold steady around $1.2M, increased inventory gives you room to negotiate on homes needing updates. Turnkey properties still move fast in under 15 days, so act quickly with...
3 weeks ago • Castro Valley
Johnny Singh
Redfin Premier agent
148 deals
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Climate risks

1/10 Flood Factor

Minimal risk of a flood reaching the building in the next 30 years

3/10 Fire Factor

0.77% chance of being in a wildfire in next 30 years

4/10 Heat Factor

7 days above 88° expected this year, 14 days in 30 years

1/10 Wind Factor

Minimal risk of severe winds over next 30 years

7/10 Air Factor

12 unhealthy days expected this year, 12 days in 30 years

Provided by First Street

Historical weather

Castro Valley, CA • 94546

Average low and high temperatures (°F)

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Sun exposure

In this area, properties receive around 11.2 hours in June and 4.9 hours in December, placing it above the U.S. average for solar exposure.

11.2 hrs

4.9 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$1.31M – $1.59M

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Home values near 19087 Helton St

Data from public records.

Address	Redfin Estimate
19091 Helton St, Castro Valley, CA 4 Beds \| 2.5 Baths \| 2106 Sq. Ft.	$1,330,712
19054 Helton St, Castro Valley, CA 4 Beds \| 3 Baths \| 2592 Sq. Ft.	$1,604,606

Address	Redfin Estimate
19099 Helton St, Castro Valley, CA 4 Beds \| 2.5 Baths \| 2121 Sq. Ft.	$1,415,593
5125 Helton Ct, Castro Valley, CA 3 Beds \| 2 Baths \| 1801 Sq. Ft.	$1,418,326

Address	Redfin Estimate
19075 Helton St, Castro Valley, CA 3 Beds \| 2 Baths \| 1801 Sq. Ft.	$1,269,803
19061 Helton St, Castro Valley, CA 4 Beds \| 3 Baths \| 2106 Sq. Ft.	$1,246,099

Property information provided by bridgeMLS, Bay East AOR, or Contra Costa AOR when last listed in 2005. This data may not match . Learn more.

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GreatSchools Ratings provided by GreatSchools.org.

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About this home

Redfin Estimate

Earn from this home

Market trends in 94546, CA

Sale history for 19087 Helton St

Tax history for 19087 Helton St

Public record

Property details

Around this home

Schools

Lifestyle

Local insights from Redfin agents

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 94546

Home values near 19087 Helton St

More real estate resources