OFF MARKET

Off Market Sep 2014 for $950K

$1,444,008

•

3,847

sq ft

3790 Armstrong Rd, Byron, CA 94514

About this home

Single-familyProperty Type

1983Year Built

11.67 acresLot Size

$375Est. Price/Sq.Ft.

4 car garageParking

Listed by Noelle Borden •DRE #01833825 • Merrill Signature Properties

Bought with Nancy Shewmaker •DRE #00999418 • RE/MAX Gold

Redfin checked: a minute ago

•Source:bridgeMLS, Bay East AOR, or Contra Costa AOR #40661680

Redfin Estimate

$1,444,008

$494K since sold in September 2014$9,000 since August

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 68.2% higher than the average sale price ($859K) of 6 comparable homes.

SOLD DEC 15, 2025
$899,000
A
4 beds2.5 baths3,058 sq ft
540 Camino Diablo, Brentwood, CA 94513
SOLD AUG 24, 2026
$850,000
B
4 beds2.5 baths3,005 sq ft
647 Macadamia Ct, Brentwood, CA 94513
SOLD JUL 21, 2026
$1,130,000
C
2 beds2.5 baths2,753 sq ft
2062 Reserva Ct, Brentwood, CA 94513
SOLD JUL 10, 2026
$800,000
D
4 beds2.5 baths2,651 sq ft
333 San Marino Ln, Brentwood, CA 94513
SOLD JUN 22, 2026
$757,500
E
3 beds2.5 baths2,384 sq ft
1129 Jonagold Way, Brentwood, CA 94513
SOLD JUN 15, 2026
$715,000
F
2 beds2.5 baths2,156 sq ft
1419 Bismarck Ln, Brentwood, CA 94513

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Earn from this home

Sell

$810,198

Est. take-home

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Rent

$2,762/mo

Redfin rental estimate

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Market trends in 94514, CA

Last updated August 2026

Sale-to-List Price

85.0%

+4.1% MoM

Median sale price

$477K

$4M MoM

Avg. days on market

32d

168 days MoM

Recently sold homes

1 MoM

Provided by Redfin

Sale history for 3790 Armstrong Rd

Date

Event

Price

bridgeMLS, Bay East AOR, or Contra Costa AOR #40661680

Sep 27, 2014

Sold

$950,000

$247/sq ft

Aug 25, 2014

Pending

—

Jun 13, 2014

Listed

$989,000

$257/sq ft

bridgeMLS, Bay East AOR, or Contra Costa AOR #40512326

May 4, 2011

Sold

$475,500

$124/sq ft

Apr 9, 2011

Pending

—

Mar 4, 2011

Listed

$475,000

$123/sq ft

bridgeMLS, Bay East AOR, or Contra Costa AOR #40064460

Apr 14, 2005

Sold

$1,100,000

$286/sq ft

Mar 16, 2005

Listing Removed

—

Feb 24, 2005

Listed

$1,250,000

$325/sq ft

Tax history for 3790 Armstrong Rd

*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
Permits

Beds

—

Baths

—

Stories

Lot width

—

Lot depth

—

Lot size

11.67 Acres

Year renovated

1984

Sq. Ft.

3,847

Year built

1983

Style

Ranch

County

Contra Costa County

APN

0010110179

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Jul 13, 2026.

Feb 10, 2015 • Final

Building - residential electrical

Remove and replace the electrical service panel for a detached garage.

Electrical

Mar 19, 2012 • Final

Building/residential/al/alteration

Replace all windows and doors on the lower level. Replace the shower enclosure and tile, furnace, water heater, and electrical service. Repair the stucco as needed.

Electrical

HVAC

Plumbing

Remodel

Roofing

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: 4
Covered Spaces: 4
Parking Features: Attached, RV/Boat Parking, Side Yard Access, Workshop in Garage, Garage Door Opener

Interior

Virtual Tour

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

Interior Features
Interior Features: Dining Area, Storage, Workshop, Counter - Solid Surface, Stone Counters, Eat-in Kitchen, Kitchen Island, Updated Kitchen
Appliances: Dishwasher, Double Oven, Disposal, Gas Range, Plumbed For Ice Maker
Laundry Features: Laundry Room
Upper Level Features: 1 Bath, Primary Bedrm Suite - 1, Loft
Street Level Features: 2 Bedrooms, 1.5 Baths, Laundry Facility, Main Entry
Window Features: Double Pane Windows, Window Coverings
Fireplaces Total: 2
Has Fireplace
Flooring: Hardwood, Tile, Carpet

Room Information
Kitchen Features: Counter - Solid Surface,Counter - Stone,Dishwasher,Double Oven,Eat In Kitchen,Garbage Disposal,Gas Range/Cooktop,Ice Maker Hookup,Island,Updated Kitchen,Other
Rooms Total: 8
Fireplace Features: Brick, Family Room

Exterior

Building Information
Construction Materials: Stucco
Building Area Total: 3,847
Builder Name: custom

Exterior Features
Patio And Porch Features: Covered
Exterior Features: Back Yard, Front Yard, Garden/Play
Fencing: Fenced

Pool Information
Pool Features: In Ground
Has Private Pool

Property Information
Living Area: 3847
Living Area Units: Square Feet
Property Type: Residential
Property Sub Type: Single Family Residence
Year Built: 1983

Lot Information
Lot Size Square Feet: 508345
Lot Size Area: 11.67
Lot Size Units: Acres
Lot Size Acres: 11.67
Lot Features: Agricultural, Horses Possible, Level

Utilities

Utility Information
Water Source: Well
Sewer: Septic Tank

Heating & Cooling
Has Heating
Heating: Zoned
Cooling: Ceiling Fan(s), Zoned

Location

School Information
High School District: Not Listed

Public facts

Beds: —
Baths: —
Sq. Ft.: 3,847
Stories: 1.0
Lot Size: 11.67 acres
Style: Ranch
Year Built: 1983
Year Renovated: 1984
County: Contra Costa County
APN: 0010110179

Home facts updated by county records on Jul 13, 2026

Around this home

Schools

Discovery Bay Elementary School

Public K-5 • Assigned • 4.8mi

8/10

Excelsior Middle School

Public 6-8 • Assigned • 2.9mi

4/10

Liberty High School

Public 9-12 • Assigned • 7.8mi

7/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Climate risks

1/10 Flood Factor

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

8/10 Fire Factor

43% chance of being in a wildfire in next 30 years

6/10 Heat Factor

7 days above 102° expected this year, 15 days in 30 years

1/10 Wind Factor

Minimal risk of severe winds over next 30 years

10/10 Air Factor

22 unhealthy days expected this year, 23 days in 30 years

Provided by First Street

Historical weather

Byron, CA • 94514

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 12.6 hours in June and 4.7 hours in December, placing it above the U.S. average for solar exposure.

12.6 hrs

4.7 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$1.37M – $1.66M

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Home values near 3790 Armstrong Rd

Data from public records.

Address	Redfin Estimate
6600 Armstrong Rd, Byron, CA 1 Beds \| 2 Baths \| 1124 Sq. Ft.	$745,801
5200 Byron Hot Springs Rd, Byron, CA 5 Beds \| 6.5 Baths \| 6300 Sq. Ft.	$1,536,376

Address	Redfin Estimate
16171 Byron Hwy, Byron, CA 4 Beds \| 3 Baths \| 2318 Sq. Ft.	$888,189
12520 Byron Hwy, Byron, CA 2 Beds \| 1 Baths \| 888 Sq. Ft.	$996,504

Address	Redfin Estimate
6150 Byron Hot Springs Rd, Byron, CA 3 Beds \| 2 Baths \| 2002 Sq. Ft.	$1,027,690

Property information provided by bridgeMLS, Bay East AOR, or Contra Costa AOR when last listed in 2014. 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 94514, CA

Sale history for 3790 Armstrong Rd

Tax history for 3790 Armstrong Rd

Public record

Property details

Around this home

Schools

Lifestyle

Climate risks

Historical weather

Sun exposure

Nearby similar homes

Home values near 3790 Armstrong Rd

More real estate resources