OFF MARKET

Off Market Jul 2006 for $1

$6,848,259

Est. refi paymentEst. refi $35,920/mo

•

6,320

sq ft

4100 Happy Valley Rd, Lafayette, CA 94549

About this home

Single-familyProperty Type

1949Year Built

1.43 acresLot Size

$1,084Est. Price/Sq.Ft.

4 car garageParking

Listed by Mark S Solomon •DRE #00553003 • Pacific Union International

Bought with Susan Peterson •DRE #00992024 • Pacific Union International

Redfin checked: 2 minutes ago

•Source:bridgeMLS, Bay East AOR, or Contra Costa AOR #40162501

Redfin Estimate

$6,848,259

$6.8M since sold in July 2006$24K since July

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 56.6% higher than the average sale price ($4.37M) of 6 comparable homes.

SOLD NOV 14, 2025
$4,250,000
A
4 beds4.5 baths4,502 sq ft
1133 Estates Dr, Lafayette, CA 94549
SOLD JUN 25, 2026
$3,195,000
B
4 beds4.5 baths3,110 sq ft
18 Saint James Ct, Orinda, CA 94563
SOLD SEP 4, 2025
$3,700,000
C
4 beds4.5 baths4,640 sq ft
1121 Estates Dr, Lafayette, CA 94549
SOLD MAY 6, 2026
$7,500,000
D
5 beds5.5 baths5,310 sq ft
8 Sycamore Rd, Orinda, CA 94563
SOLD APR 20, 2026
$4,200,000
E
4 beds4.5 baths4,418 sq ft
1161 Oleander Dr, Lafayette, CA 94549
SOLD JUN 10, 2026
$3,401,000
F
4 beds4.5 baths3,435 sq ft
371 Camino Sobrante, Orinda, CA 94563

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Earn from this home

Sell

$6,487,725

Est. take-home

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Refinance

Est. cash available

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Rent

$10,195/mo

Redfin rental estimate

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Market trends in 94549, CA

Last updated July 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

101.9%

0.2% MoM

Median sale price

$2.0M

$452 MoM

Avg. days on market

18d

0 days MoM

Recently sold homes

15 MoM

New listings for sale

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$825,000
2 beds1.5 baths1,038 sq ft
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857A Mountain View Dr, Lafayette, CA 94549
OPEN SUN, 12PM TO 4PM
$2,100,000
4 beds2.5 baths2,086 sq ft
829 Reliez Station Rd, Lafayette, CA 94549
OPEN SUN, 1PM TO 4PM
$1,587,000
4 beds3 baths2,392 sq ft
16 Ruth Ct, Lafayette, CA 94549
OPEN SUN, 1PM TO 4PM
$1,925,000
4 beds3 baths2,228 sq ft
859 Mountain View Dr, Lafayette, CA 94549
OPEN SUN, 2PM TO 4PM
$2,495,000
3 beds3 baths2,686 sq ft
1232 Upper Happy Vly, Lafayette, CA 94549
OPEN SUN, 1PM TO 4PM
$2,195,000
3 beds2 baths1,658 sq ft
210 Lafayette Cir #302, Lafayette, CA 94549
OPEN SUN, 1PM TO 4PM
$3,999,000
4 beds3.5 baths4,114 sq ft
3647 Happy Valley Rd, Lafayette, CA 94549
OPEN SUN, 2PM TO 4PM
$2,995,000
4 beds3.5 baths4,076 sq ft
2 Reliez Manor Ct, Lafayette, CA 94549
COMING SOON
$1,699,000
3 beds2 baths1,956 sq ft
3149 Indian Way, Lafayette, CA 94549
See all

Provided by Redfin

Sale history for 4100 Happy Valley Rd

Year

Property tax

Land + Additions

Assessment*

2025

$64,574 (+1.5%)

$2,750,000 + $3,000,000

$5,750,000

2024

$63,634 (+2.3%)

$3,000,000 + $2,750,000

$5,750,000

2023

$62,180 (+9.2%)

$2,600,000 + $3,050,000

$5,650,000

2022

$56,916 (+14.3%)

$2,457,000 + $3,045,000

$5,502,000

2021

$49,812 (+1.9%)

$2,250,000 + $2,750,000

$5,000,000

2020

$48,879 (−0.3%)

$2,000,000 + $2,400,000

$4,400,000

2019

$49,036 (+5.1%)

$1,893,089 + $2,346,911

$4,240,000

2018

$46,671 (+4.1%)

$1,893,089 + $2,346,911

$4,240,000

2017

$44,827 (+0.6%)

$1,752,447 + $2,172,553

$3,925,000

2016

$44,553 (+9.8%)

$1,752,447 + $2,172,553

$3,925,000

2015

$40,566 (+0.9%)

$1,737,712 + $2,154,288

$3,892,000

2014

$40,194 (+13.5%)

$1,562,692 + $1,937,308

$3,500,000

2013

$35,418 (+1.1%)

$1,562,692 + $1,937,308

$3,500,000

2012

$35,031 (−6.7%)

$1,378,963 + $1,709,537

$3,088,500

2011

$37,533 (−14.2%)

$1,378,963 + $1,709,537

$3,088,500

2010

$43,767

$1,473,395 + $1,826,605

$3,300,000

2009

$43,762 (−7.6%)

$1,732,579 + $2,147,921

$3,880,500

2008

$47,378

$1,732,578 + $2,147,922

$3,880,500

Tax history for 4100 Happy Valley Rd

Year

Property tax

Land + Additions

Assessment*

2025

$64,574 (+1.5%)

$2,750,000 + $3,000,000

$5,750,000

2024

$63,634 (+2.3%)

$3,000,000 + $2,750,000

$5,750,000

2023

$62,180 (+9.2%)

$2,600,000 + $3,050,000

$5,650,000

2022

$56,916 (+14.3%)

$2,457,000 + $3,045,000

$5,502,000

2021

$49,812 (+1.9%)

$2,250,000 + $2,750,000

$5,000,000

2020

$48,879 (−0.3%)

$2,000,000 + $2,400,000

$4,400,000

2019

$49,036 (+5.1%)

$1,893,089 + $2,346,911

$4,240,000

2018

$46,671 (+4.1%)

$1,893,089 + $2,346,911

$4,240,000

2017

$44,827 (+0.6%)

$1,752,447 + $2,172,553

$3,925,000

2016

$44,553 (+9.8%)

$1,752,447 + $2,172,553

$3,925,000

2015

$40,566 (+0.9%)

$1,737,712 + $2,154,288

$3,892,000

2014

$40,194 (+13.5%)

$1,562,692 + $1,937,308

$3,500,000

2013

$35,418 (+1.1%)

$1,562,692 + $1,937,308

$3,500,000

2012

$35,031 (−6.7%)

$1,378,963 + $1,709,537

$3,088,500

2011

$37,533 (−14.2%)

$1,378,963 + $1,709,537

$3,088,500

2010

$43,767

$1,473,395 + $1,826,605

$3,300,000

2009

$43,762 (−7.6%)

$1,732,579 + $2,147,921

$3,880,500

2008

$47,378

$1,732,578 + $2,147,922

$3,880,500

*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

1.43 Acres

Year renovated

1985

Sq. Ft.

6,157

Year built

1949

Style

Single Family Residential

County

Contra Costa County

APN

2460100213

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Jul 13, 2026.

May 5, 2025 • Active

Building/residential/p/pool

Resurface an existing pool by removing and replacing the surface and tile. The drain grates are already compliant with code.

Pool and hot tub

Nov 8, 2023 • Final

Building - residential re-roof

Remove existing wood shakes from the main house. Install new plywood and new roofing material.

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, Detached

Interior

Virtual Tour

Bathroom Information
# of Bathrooms Total: 6
# of Bathrooms Full: 4
# of Bathrooms Partial: 2
Primary Bathroom Included Features: Tub with Jets

Interior Features
Interior Features: Au Pair, Den, Family Room, Formal Dining Room, Library, Breakfast Bar, Tile Counters, Pantry
Appliances: Dishwasher, Double Oven, Disposal, Gas Range, Microwave, Oven, Refrigerator
Laundry Features: Dryer, Hookups Only
Upper Level Features: 4 Bedrooms, 4 Baths
Street Level Features: 0.5 Bath, Main Entry
Window Features: Window Coverings
Fireplaces Total: 4
Has Fireplace
Flooring: Hardwood

Room Information
Kitchen Features: Breakfast Bar,Counter - Tile,Dishwasher,Double Oven,Garbage Disposal,Gas Range/Cooktop,Microwave,Oven Built-in,Pantry,Refrigerator
Rooms Total: 12
Fireplace Features: Den, Family Room, Living Room
Basement: Crawl Space, Partial

Exterior

Building Information
Construction Materials: Wood Siding
Building Area Total: 6,320

Exterior Features
Patio And Porch Features: Patio
Exterior Features: Back Yard, Sprinklers Automatic
Roof: Shake

Pool Information
Pool Features: Gunite
Has Private Pool

Property Information
Living Area: 6320
Living Area Units: Square Feet
Property Type: Residential
Property Sub Type: Single Family Residence
Year Built: 1949

Lot Information
Lot Size Square Feet: 62290
Lot Size Area: 1.43
Lot Size Units: Acres
Lot Size Acres: 1.43
Lot Features: Horses Possible, Irregular Lot, Premium Lot

Utilities

Utility Information
Water Source: Public
Sewer: Public Sewer

Heating & Cooling
Has Heating
Heating: Zoned

Location

School Information
High School District: Lafayette (925) 280-3900

Public facts

Beds: 4
Baths: 5.0
Sq. Ft.: 6,157
Stories: 2.0
Lot Size: 1.43 acres
Style: Single Family Residential
Year Built: 1949
Year Renovated: 1985
County: Contra Costa County
APN: 2460100213

Home facts updated by county records on Jul 13, 2026

Around this home

Schools

Happy Valley Elementary School

Public K-5 • Assigned • 0.9mi

8/10

M. H. Stanley Middle School

Public 6-8 • Assigned • 2.9mi

8/10

Acalanes High School

Public 9-12 • Assigned • 3.4mi

10/10

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

4/10 Fire Factor

1% chance of being in a wildfire in next 30 years

2/10 Heat Factor

7 days above 92° expected this year, 15 days in 30 years

1/10 Wind Factor

Minimal risk of severe winds over next 30 years

8/10 Air Factor

14 unhealthy days expected this year, 15 days in 30 years

Provided by First Street

Historical weather

Lafayette, CA • 94549

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 11.5 hours in June and 4.9 hours in December, placing it above the U.S. average for solar exposure.

11.5 hrs

4.9 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$6.51M – $7.88M

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Home values near 4100 Happy Valley Rd

Data from public records.

Address	Redfin Estimate
4082 Happy Valley Rd, Lafayette, CA 4 Beds \| 3 Baths \| 3665 Sq. Ft.	$3,379,291
4116 Happy Valley Rd, Lafayette, CA 6 Beds \| 5.5 Baths \| 5200 Sq. Ft.	$4,058,626

Address	Redfin Estimate
4080 Happy Valley Rd, Lafayette, CA 5 Beds \| 4.5 Baths \| 4648 Sq. Ft.	$3,514,493
4110 Happy Valley Rd, Lafayette, CA 7 Beds \| 5.5 Baths \| 5729 Sq. Ft.	$4,720,782

Address	Redfin Estimate
4079 Happy Valley Rd, Lafayette, CA 5 Beds \| 3 Baths \| 5885 Sq. Ft.	$5,514,835
4105 Happy Valley Rd, Lafayette, CA 4 Beds \| 2.5 Baths \| 3086 Sq. Ft.	$2,714,731

Property information provided by bridgeMLS, Bay East AOR, or Contra Costa AOR when last listed in 2006. 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 94549, CA

Sale history for 4100 Happy Valley Rd

Tax history for 4100 Happy Valley Rd

Public record

Property details

Around this home

Schools

Lifestyle

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 94549

Home values near 4100 Happy Valley Rd

More real estate resources