OFF MARKET

Off Market Oct 2005 for $890K

$1,619,469

Est. refi paymentEst. refi $5,674/mo

•

2,500

sq ft

18038 Reamer Rd, Castro Valley, CA 94546

About this home

Single-familyProperty Type

1956Year Built

10,165 sq ftLot Size

$648Est. Price/Sq.Ft.

2 car garageParking

Listed by Dan Marchand •DRE #00527858 • MW Associates

Bought with Mona Koussa •DRE #01260089 • Coldwell Banker Realty

Redfin checked: 2 minutes ago

•Source:bridgeMLS, Bay East AOR, or Contra Costa AOR #40091785

Redfin Estimate

$1,619,469

$729K since sold in October 2005$3,000 since July

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 16.5% higher than the average sale price ($1.39M) of 6 comparable homes.

SOLD MAY 18, 2026
$1,438,000
A
4 beds2.5 baths2,113 sq ft
17939 Lamson Rd, Castro Valley, CA 94546
SOLD MAR 20, 2026
$1,362,000
B
3 beds2.5 baths2,391 sq ft
18153 Plymouth Dr, Castro Valley, CA 94546
SOLD JAN 7, 2026
$1,335,000
C
3 beds2.5 baths2,018 sq ft
17838 Walnut Rd, Castro Valley, CA 94546
SOLD MAY 29, 2026
$1,570,000
D
4 beds2.5 baths2,668 sq ft
4473 Hillsborough Dr, Castro Valley, CA 94546
SOLD MAY 29, 2026
$1,305,000
E
4 beds2.5 baths2,077 sq ft
4977 Proctor Rd, Castro Valley, CA 94546
SOLD AUG 10, 2026
$1,330,000
F
4 beds2 baths2,864 sq ft
4515 Ewing Rd, Castro Valley, CA 94546

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Earn from this home

Sell

$1,223,447

Est. take-home

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Refinance

Est. cash available

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Rent

$4,271/mo

Redfin rental estimate

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Market trends in 94546, CA

Last updated July 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

105.6%

+0.7% MoM

Median sale price

$1.1M

$45K MoM

Avg. days on market

13d

1 days MoM

Recently sold homes

100

5 MoM

New listings for sale

COMING SOON
$799,000
2 beds1 bath1,122 sq ft
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OPEN SUN, 12PM TO 4PM
19453 Vaughn Ave, Castro Valley, CA 94546
$1,175,000
3 beds2 baths1,440 sq ft
19453 Vaughn Ave, Castro Valley, CA 94546
Pacific Home Brokers
OPEN TODAY, 12PM TO 2PM
$695,000
2 beds1.5 baths1,207 sq ft
20279 Forest Ave, Castro Valley, CA 94546
(415) 510-8600
OPEN TODAY, 11AM TO 1PM
$870,000
3 beds1 bath1,080 sq ft
2976 Sydney, Castro Valley, CA 94546
COMING SOON
$1,550,000
3 beds1.5 baths1,851 sq ft
4618 Ewing Rd, Castro Valley, CA 94546
OPEN TODAY, 1PM TO 4PM
$699,999
3 beds1 bath1,036 sq ft
19117 Parsons Ave, Castro Valley, CA 94546
OPEN SUN, 2PM TO 4PM
$549,950
3 beds2 baths1,354 sq ft
21239 Gary Dr Unit 202E, Hayward, CA 94546
OPEN TODAY, 1PM TO 4PM
$1,235,000
3 beds2 baths1,581 sq ft
18747 Sandy Rd, Castro Valley, CA 94546
OPEN TODAY, 1PM TO 4PM
$1,095,000
4 beds2.5 baths1,988 sq ft
16630 Cowell St, Castro Valley, CA 94578
VIDEO TOUR
$1,899,000
4 beds3.5 baths3,379 sq ft
16989 Brierly Ct, Castro Valley, CA 94546
See all

Provided by Redfin

Sale history for 18038 Reamer Rd

Year

Property tax

Land + Additions

Assessment*

2025

$15,137 (+2.2%)

$364,844 + $851,304

$1,216,148

2024

$14,810 (+1.5%)

$364,844 + $851,304

$1,216,148

2023

$14,589 (+1.9%)

$357,691 + $834,614

$1,192,305

2022

$14,322 (−21.8%)

$343,805 + $802,212

$1,146,017

2021

$18,323 (+14.5%)

$343,805 + $802,212

$1,146,017

2020

$16,005 (+33.9%)

$337,066 + $786,487

$1,123,553

2019

$11,953 (+7.0%)

$282,300 + $658,700

$941,000

2018

$11,171 (+7.3%)

$279,000 + $651,000

$930,000

2017

$10,413 (+5.3%)

$245,700 + $573,300

$819,000

2016

$9,885 (+18.2%)

$245,700 + $573,300

$819,000

2015

$8,365 (+0.6%)

$240,300 + $560,700

$801,000

2014

$8,317 (+13.1%)

$210,000 + $490,000

$700,000

2013

$7,356 (−0.5%)

$210,000 + $490,000

$700,000

2012

$7,390 (−6.2%)

$185,000 + $431,000

$616,000

2011

$7,881

$186,000 + $434,000

$620,000

2010

$7,884 (+5.0%)

$198,000 + $462,000

$660,000

2009

$7,507 (−20.3%)

$198,000 + $462,000

$660,000

2008

$9,417

$187,500 + $437,500

$625,000

Tax history for 18038 Reamer Rd

Year

Property tax

Land + Additions

Assessment*

2025

$15,137 (+2.2%)

$364,844 + $851,304

$1,216,148

2024

$14,810 (+1.5%)

$364,844 + $851,304

$1,216,148

2023

$14,589 (+1.9%)

$357,691 + $834,614

$1,192,305

2022

$14,322 (−21.8%)

$343,805 + $802,212

$1,146,017

2021

$18,323 (+14.5%)

$343,805 + $802,212

$1,146,017

2020

$16,005 (+33.9%)

$337,066 + $786,487

$1,123,553

2019

$11,953 (+7.0%)

$282,300 + $658,700

$941,000

2018

$11,171 (+7.3%)

$279,000 + $651,000

$930,000

2017

$10,413 (+5.3%)

$245,700 + $573,300

$819,000

2016

$9,885 (+18.2%)

$245,700 + $573,300

$819,000

2015

$8,365 (+0.6%)

$240,300 + $560,700

$801,000

2014

$8,317 (+13.1%)

$210,000 + $490,000

$700,000

2013

$7,356 (−0.5%)

$210,000 + $490,000

$700,000

2012

$7,390 (−6.2%)

$185,000 + $431,000

$616,000

2011

$7,881

$186,000 + $434,000

$620,000

2010

$7,884 (+5.0%)

$198,000 + $462,000

$660,000

2009

$7,507 (−20.3%)

$198,000 + $462,000

$660,000

2008

$9,417

$187,500 + $437,500

$625,000

*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

10,165 Sq. Ft.

Year renovated

1957

Sq. Ft.

1,899

Year built

1956

Style

Single Family Residential

County

Alameda County

APN

084D115800303

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Jul 27, 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, 2024 • Final

Building

Remove and replace an existing residential water heater with a new unit of the same capacity in the same location.

Plumbing

Water heater

Nov 6, 2019 • Final

Building

Install a roof-mounted solar photovoltaic system and upgrade the main electrical panel. Remove existing roof tiles and replace them with composite shingles where needed.

Electrical

Roofing

Solar

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, Garage, Int Access From Garage, Off Street, Workshop in Garage, Enclosed, Garage Door Opener

Interior

Bathroom Information
# of Bathrooms Total: 3
# of Bathrooms Full: 2
# of Bathrooms Partial: 1
Other Bathrooms Included Features: Shower Over Tub, Solid Surface, Tile
Primary Bathroom Included Features: Stall Shower, Tile, Updated Baths

Interior Features
Interior Features: Family Room, Storage, Workshop, Breakfast Bar, Tile Counters, Updated Kitchen
Appliances: Dishwasher, Double Oven, Electric Range, Disposal, Oven, Range, Self Cleaning Oven, Gas Water Heater
Laundry Features: 220 Volt Outlet, Laundry Room
Street Level Features: 3 Bedrooms, 2 Baths, Primary Bedrm Suite - 1, Main Entry
Window Features: Window Coverings
Fireplaces Total: 2
Has Fireplace
Flooring: Linoleum, Tile, Carpet

Room Information
Kitchen Features: Breakfast Bar,Counter - Tile,Dishwasher,Double Oven,Electric Range/Cooktop,Garbage Disposal,Oven Built-in,Range/Oven Built-in,Self-Cleaning Oven,Updated Kitchen,Other
Rooms Total: 9
Fireplace Features: Brick, Family Room, Insert, Living Room, Raised Hearth, Wood Burning

Exterior

Building Information
Construction Materials: Brick, Stucco, Wood Siding
Building Area Total: 2,500

Exterior Features
Patio And Porch Features: Deck, Patio, Covered
Exterior Features: Back Yard, Front Yard, Garden/Play, Side Yard, Sprinklers Automatic, Storage
Door Features: Mirrored Closet Door(s)
Fencing: Fenced

Pool Information
Pool Features: Gas Heat, Gunite, In Ground, Pool Cover, Spa
Has Private Pool
Has Spa

Property Information
Living Area: 2500
Living Area Units: Square Feet
Property Type: Residential
Property Sub Type: Single Family Residence
Year Built: 1956

Lot Information
Other Structures: Shed(s)
Lot Size Square Feet: 10165
Lot Size Area: 0.23
Lot Size Units: Acres
Lot Size Acres: 0.23
Lot Features: Irregular Lot
Zoning: 1001

Utilities

Utility Information
Water Source: Public
Sewer: Public Sewer

Heating & Cooling
Has Heating
Heating: Forced Air, Natural Gas
Cooling: Ceiling Fan(s), No Air Conditioning

Location

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

Public facts

Beds: 4
Baths: 3.0
Sq. Ft.: 1,899
Stories: 1.0
Lot Size: 10,165 square feet
Style: Single Family Residential
Year Built: 1956
Year Renovated: 1957
County: Alameda County
APN: 084D115800303

Home facts updated by county records on Jul 27, 2026

Around this home

Schools

Proctor Elementary School

Public K-5 • Assigned • 0.7mi

9/10

Creekside Middle School

Public 6-8 • Assigned • 1.9mi

10/10

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's late-summer market shows a clear split. While median prices hold near $1.2M, increased inventory gives buyers leverage on older properties. However, immaculate homes still go pending in under 15 days. A strong, clean offer is key!
2 weeks ago • Castro Valley
Johnny Singh
Redfin Premier agent
146 deals
Was this helpful?
Strong buyer demand keeps the Castro Valley market moving incredibly fast. With homes frequently selling above their $1.2 million median price, decisive action is essential. To win here, buyers need to submit competitive offers quickly and minimize...
1 month ago • Castro Valley
Karan Kandel
Redfin agent
13 deals
Was this helpful?

Climate risks

1/10 Flood Factor

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

3/10 Fire Factor

0.62% chance of being in a wildfire in next 30 years

3/10 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

$1.54M – $1.86M

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Home values near 18038 Reamer Rd

Data from public records.

Address	Redfin Estimate
18012 Reamer Rd, Castro Valley, CA 4 Beds \| 2.5 Baths \| 2090 Sq. Ft.	$1,399,703
18039 Reamer Rd, Castro Valley, CA 5 Beds \| 3 Baths \| 2311 Sq. Ft.	$1,635,553

Address	Redfin Estimate
18023 Reamer Rd, Castro Valley, CA 3 Beds \| 4 Baths \| 1668 Sq. Ft.	$1,359,075
18055 Reamer Rd, Castro Valley, CA 2 Beds \| 2 Baths \| 1326 Sq. Ft.	$1,376,995

Address	Redfin Estimate
18031 Reamer Rd, Castro Valley, CA 3 Beds \| 3 Baths \| 2480 Sq. Ft.	$1,630,218
18020 Reamer Rd, Castro Valley, CA 3 Beds \| 2 Baths \| 1572 Sq. Ft.	$1,196,459

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 18038 Reamer Rd

Tax history for 18038 Reamer Rd

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 18038 Reamer Rd

More real estate resources