Google street view image for 3840 Happy Valley Rd, Lafayette, CA 94549

Off market may 2022 for $4.3M

$3,808,384

Est. refi paymentEst. refi $29,025/mo

•

3,866

sq ft

3840 Happy Valley Rd, Lafayette, CA 94549

About this home

Tucked behind a gate in the heart of Happy Valley, this timeless home features stunning living spaces surrounded by manicured gardens. With Carmel charm, a tree-lined path leads to the light-filled entry hall and spacious living room. The single-story floorplan with wonderful indoor/outdoor living flows features an updated kitchen designed for serious chefs as well as casual dining and is adjacent to the family room. The park-like yard is a gardener's dream, with spaces for entertaining as well as everyday enjoyment. Wander along the sparkling pool past the bright pink Azaleas to two turf lawns, mature landscaping, inviting brick patios, and gated garden with raised beds. This rare, gated enclave with 5 homes offers a prestigious setting perfectly paired with a magical neighborhood feel. The ideal location is within steps of Happy Valley Elementary, downtown shops and restaurants, BART, Hwy. 24/680, top-rated schools, Oakwood Athletic Club & the Lafayette Reservoir and Rim Trail.

Single-familyProperty Type

1947Year Built

0.78 acresLot Size

$985Est. Price/Sq.Ft.

2 car garageParking

Listed by • Compass

•925-444-4300 (broker)

Bought with • Compass

•925-258-0090 (broker)

Redfin checked: a few seconds ago

•Source:San Francisco MLS #40990129

Redfin Estimate

$3,808,384

$497K since sold in May 2022$65K since October

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 2.3% lower than the average sale price ($3.90M) of 6 comparable homes.

SOLD SEP 9, 2026
$3,550,000
A
5 beds3.5 baths3,890 sq ft
3907 Happy Valley Rd, Lafayette, CA 94549
SOLD AUG 26, 2026
$4,800,000
B
4 beds3.5 baths4,033 sq ft
3954 S Peardale Dr, Lafayette, CA 94549
SOLD JUL 27, 2026
$2,800,000
C
5 beds3.5 baths3,169 sq ft
1038 Pine Ln, Lafayette, CA 94549
SOLD OCT 7, 2026
$3,200,000
D
4 beds3.5 baths3,470 sq ft
3646 Happy Valley Rd, Lafayette, CA 94549
SOLD JUL 9, 2026
$4,800,000
E
4 beds3.5 baths4,511 sq ft
1165 Glen Rd, Lafayette, CA 94549
SOLD AUG 21, 2026
$4,250,000
F
4 beds3.5 baths3,399 sq ft
3814 Happy Valley Rd, Lafayette, CA 94549

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Earn from this home

Sell

$462,444

Est. take-home

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Refinance

Est. cash available

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Rent

$9,368/mo

Redfin rental estimate

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Market trends in 94549, CA

Last updated October 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-list price

102.4%

+1.0% MoM

Median sale price

$1.8M

$948 MoM

Avg. days on market

17d

0 days MoM

Recently sold homes

1 MoM

New listings for sale

COMING SOON
1003 Woodbury Rd #104, Lafayette, CA 94549
$1,092,000
2 beds2 baths1,110 sq ft
1003 Woodbury Rd #104, Lafayette, CA 94549
COMING SOON
$1,299,000
3 beds2 baths1,651 sq ft
490 Florence Dr, Lafayette, CA 94549
OPEN TODAY, 1PM TO 4PM
$1,495,000
3 beds2 baths1,670 sq ft
3241 Judith Ln, Lafayette, CA 94549
3D WALKTHROUGH
$2,895,000
4 beds4.5 baths4,225 sq ft
3370 Stage Coach Dr, Lafayette, CA 94549
OPEN TODAY, 1PM TO 4PM
$2,975,000
4 beds3 baths2,619 sq ft
4022 Happy Valley Rd, Lafayette, CA 94549
3D WALKTHROUGH
$999,000
3 beds3 baths2,443 sq ft
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OPEN TODAY, 2PM TO 4PM
$2,695,000
5 beds3 baths2,484 sq ft
3208 Camino Colorados, Lafayette, CA 94549
See all

Provided by Redfin

Sale history for 3840 Happy Valley Rd

Year

Property tax

Land + Additions

Assessment*

2026

$44,184 (+0.5%)

$3,200,000 + $650,000

$3,850,000

2025

$43,954 (+1.1%)

$3,200,000 + $650,000

$3,850,000

2024

$43,494 (−13.1%)

$3,000,000 + $850,000

$3,850,000

2023

$50,043 (+175.6%)

$2,800,000 + $1,000,000

$3,800,000

2022

$18,159 (+3.0%)

$3,371,100 + $1,020,000

$4,391,100

2021

$17,634 (−0.3%)

$811,585 + $664,340

$1,475,925

2020

$17,685 (+2.7%)

$795,672 + $651,314

$1,446,986

2019

$17,226 (+3.7%)

$787,514 + $644,636

$1,432,150

2018

$16,620 (+1.7%)

$772,073 + $631,997

$1,404,070

2017

$16,335 (+1.9%)

$742,094 + $607,456

$1,349,550

2016

$16,033 (+2.8%)

$742,094 + $607,456

$1,349,550

2015

$15,600 (+0.9%)

$727,544 + $595,546

$1,323,090

2014

$15,465 (+1.2%)

$702,579 + $575,111

$1,277,690

2013

$15,288 (+3.1%)

$702,579 + $575,111

$1,277,690

2012

$14,830 (+49.4%)

$699,404 + $572,512

$1,271,916

2011

$9,924 (+2.8%)

$685,691 + $561,287

$1,246,978

2010

$9,656 (+0.8%)

$246,384 + $550,282

$796,666

2009

$9,579 (+1.7%)

$244,543 + $546,170

$790,713

2008

$9,416

$245,124 + $547,468

$792,592

Tax history for 3840 Happy Valley Rd

Year

Property tax

Land + Additions

Assessment*

2026

$44,184 (+0.5%)

$3,200,000 + $650,000

$3,850,000

2025

$43,954 (+1.1%)

$3,200,000 + $650,000

$3,850,000

2024

$43,494 (−13.1%)

$3,000,000 + $850,000

$3,850,000

2023

$50,043 (+175.6%)

$2,800,000 + $1,000,000

$3,800,000

2022

$18,159 (+3.0%)

$3,371,100 + $1,020,000

$4,391,100

2021

$17,634 (−0.3%)

$811,585 + $664,340

$1,475,925

2020

$17,685 (+2.7%)

$795,672 + $651,314

$1,446,986

2019

$17,226 (+3.7%)

$787,514 + $644,636

$1,432,150

2018

$16,620 (+1.7%)

$772,073 + $631,997

$1,404,070

2017

$16,335 (+1.9%)

$742,094 + $607,456

$1,349,550

2016

$16,033 (+2.8%)

$742,094 + $607,456

$1,349,550

2015

$15,600 (+0.9%)

$727,544 + $595,546

$1,323,090

2014

$15,465 (+1.2%)

$702,579 + $575,111

$1,277,690

2013

$15,288 (+3.1%)

$702,579 + $575,111

$1,277,690

2012

$14,830 (+49.4%)

$699,404 + $572,512

$1,271,916

2011

$9,924 (+2.8%)

$685,691 + $561,287

$1,246,978

2010

$9,656 (+0.8%)

$246,384 + $550,282

$796,666

2009

$9,579 (+1.7%)

$244,543 + $546,170

$790,713

2008

$9,416

$245,124 + $547,468

$792,592

*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

0.78 Acres

Year renovated

1995

Sq. Ft.

3,866

Year built

1947

Style

Single Family Residential

County

Contra Costa County

APN

2461000263

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Oct 30, 2026.

Apr 29, 2020 • Final

Building - residential electrical

Replace and relocate the main electrical service panel to meet current gas meter clearance requirements. Install a new main electrical service with distribution to address overheating issues.

Electrical

Nov 26, 2019 • Final

Building - residential solar photovoltaic

Install a roof-mounted solar system on a residential building.

Electrical

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

Garage Information
Has Garage
# of Garage Spaces: 2
Has Attached Garage

Parking Information
Parking Features: Attached, Inside Entrance
# of Covered Spaces: 2

Interior

Virtual Tour Information

Bedrooms Information
# of Bedrooms: 5

Bathroom Information
Count of Bathrooms: 4
# of Full Bathrooms: 3
# of Half Bathrooms: 1

Interior Features
Laundry Features: Inside Room
Has Heating
Heating: Zoned
Has Cooling
Cooling: Central Air, Zoned
Flooring: Carpet, Tile, Wood
Has Fireplace(s)
# of Fireplaces Total: 2
Fireplace Features: Brick, Family Room, Insert, Living Room, Raised Hearth, Wood Burning
Appliances: Dishwasher, Disposal, Gas Water Heater, Microwave, Dryer, Washer

Exterior

Exterior Features
Entry Level: 0

Building Information
Living Area: 3866
Living Area Units: Square Feet
Living Area Source: Assessor Auto-Fill
Building Area Total: 3866
Building Area Units: Square Feet
Building Area Source: Assessor Auto-Fill
Construction Materials: Wood Siding
Architectural Style: Traditional
Year Built: 1947
Roof: Composition, Shingle
Foundation Details: Raised

Mobile Home Information
Mobile Dim Units: Feet

Pool Information
Pool Features: In Ground, Pool Cover

Property Type
Property Type: Residential
Property SubType: Single Family Residence

Property Information
Property Condition: Original
Other Structures: Shed(s)

Lot Information
Lot Features: Court, Garden, Other
Lot Size Sq. Ft.: 33846.12
Lot Size Acres: 0.777
Lot Size Area: 33846.12
Lot Size Units: SqFt
Lot Size Units: Square Feet
Elevation: 0
Elevation Units: Feet
Zoning Description: Other

Utilities

Utility Information
Electric: Photovoltaics Seller Owned
Sewer: Public Sewer
Water Source: Public

Location

HOA Information
Association Fee: 0

School Information
Elementary School District: Contra Costa
Middle Or Junior School District: Contra Costa
High School District: Contra Costa

Community Information
Subdivision Name: Happy Valley

Public facts

Beds: 3
Baths: 4.0
Sq. Ft.: 3,866
Stories: 1.0
Lot Size: 0.78 acres
Style: Single Family Residential
Year Built: 1947
Year Renovated: 1995
County: Contra Costa County
APN: 2461000263

Home facts updated by county records on Oct 30, 2026

Around this home

Schools

K - 12
Preschool & daycare

Happy Valley Elementary School

Public K-5 • Assigned • 0.1mi

8/10

M. H. Stanley Middle School

Public 6-8 • Assigned • 2.0mi

8/10

Acalanes High School

Public 9-12 • Assigned • 2.4mi

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

2% chance of being in a wildfire in next 30 years

3/10 Heat Factor

7 days above 95° expected this year, 16 days in 30 years

1/10 Wind Factor

Minimal risk of severe winds over next 30 years

8/10 Air Factor

15 unhealthy days expected this year, 16 days in 30 years

Provided by First Street

Historical weather

Lafayette, CA • 94549

Average low and high temperatures (°F)

60°

43°

62°

46°

70°

50°

68°

49°

75°

52°

78°

54°

81°

56°

87°

58°

81°

60°

72°

54°

63°

48°

57°

45°

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

$3.62M – $4.38M

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New listings for sale in 94549

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Home values near 3840 Happy Valley Rd

Data from public records.

Address	Redfin Estimate
3862 Happy Valley Road, Lafayette, CA 5 Beds \| 5 Baths \| 3832 Sq. Ft.	$3,075,896
3827 Happy Valley Road, Lafayette, CA 3 Beds \| 3 Baths \| 3165 Sq. Ft.	$2,956,942
3814 Happy Valley Road, Lafayette, CA 4 Beds \| 3.5 Baths \| 3399 Sq. Ft.	$4,457,310
3868 Happy Valley Road, Lafayette, CA 5 Beds \| 3 Baths \| 4140 Sq. Ft.	$3,102,712
3836 Happy Valley Road, Lafayette, CA 4 Beds \| 4 Baths \| 3548 Sq. Ft.	$3,492,080
1249 Panorama Drive, Lafayette, CA 3 Beds \| 3 Baths \| 2396 Sq. Ft.	$2,476,367
1253 Panorama Drive, Lafayette, CA 4 Beds \| 3 Baths \| 3703 Sq. Ft.	$2,732,072

Address	Redfin Estimate
3830 Happy Valley Road, Lafayette, CA 6 Beds \| 6 Baths \| 6302 Sq. Ft.	$3,728,010
3848 Happy Valley Road, Lafayette, CA 4 Beds \| 4 Baths \| 3568 Sq. Ft.	$4,219,916
3834 Happy Valley Road, Lafayette, CA 2 Beds \| 1 Baths \| 1299 Sq. Ft.	$1,672,285
3829 Happy Valley Road, Lafayette, CA 4 Beds \| 4 Baths \| 4820 Sq. Ft.	$4,729,473
3844 Happy Valley Road, Lafayette, CA 5 Beds \| 4 Baths \| 4667 Sq. Ft.	$2,788,179
1242 Panorama Drive, Lafayette, CA 5 Beds \| 4 Baths \| 3717 Sq. Ft.	$3,382,707
1260 Panorama Drive, Lafayette, CA 4 Beds \| 3 Baths \| 2823 Sq. Ft.	$2,590,603

Address	Redfin Estimate
3838 Happy Valley Road, Lafayette, CA 4 Beds \| 3 Baths \| 3065 Sq. Ft.	$3,561,749
3820 Happy Valley Road, Lafayette, CA 6 Beds \| - Baths \| 9281 Sq. Ft.	$9,412,865
3828 Happy Valley Road, Lafayette, CA 5 Beds \| 6.5 Baths \| 7500 Sq. Ft.	$7,779,398
3832 Happy Valley Road, Lafayette, CA 5 Beds \| 5 Baths \| 3426 Sq. Ft.	$2,454,455
3829 Happy Valley Road, Lafayette, CA 4 Beds \| 4 Baths \| 4820 Sq. Ft.	$4,358,493
1257 Panorama Drive, Lafayette, CA 4 Beds \| 3.5 Baths \| 3622 Sq. Ft.	$4,294,853
21 Cosso Court, Lafayette, CA 3 Beds \| 2.5 Baths \| 2522 Sq. Ft.	$3,356,603

Property information provided by San Francisco MLS when last listed in 2022. This data may not match . Learn more.

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About this home

Redfin Estimate

Earn from this home

Market trends in 94549, CA

Sale history for 3840 Happy Valley Rd

Tax history for 3840 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 3840 Happy Valley Rd

More real estate resources