Google street view image for 3844 Happy Valley Rd, Lafayette, CA 94549

Off market oct 1997 for $640K

$2,788,179

Est. refi paymentEst. refi $4,294/mo

•

4 ba

•

4,667

sq ft

3844 Happy Valley Rd, Lafayette, CA 94549

About this home

3844 Happy Valley Rd is a 4,667 square foot house on a 0.98 acre lot with 5 bedrooms and 4 bathrooms. - it last sold on October 31, 1997 for $640,000. Based on Redfin's Lafayette data, we estimate the home's value is $2,788,179.

Single-familyProperty Type

2014Year Built

0.98 acresLot Size

$597Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$2,788,179

$2.1M since sold in October 1997$133K since October

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 15.1% lower than the average sale price ($3.29M) of 6 comparable homes.

SOLD JUN 2, 2026
$3,950,000
A
4 beds3 baths3,311 sq ft
3853 Palo Alto Dr, Lafayette, CA 94549
SOLD OCT 15, 2026
$3,375,000
B
3 beds3 baths2,686 sq ft
1232 Upper Happy Vly, Lafayette, CA 94549
SOLD SEP 24, 2026
$2,600,000
C
4 beds3 baths2,825 sq ft
1196 Monticello Rd, Lafayette, CA 94549
SOLD JUN 9, 2026
$2,725,000
D
4 beds3 baths2,218 sq ft
3926 S Peardale Dr, Lafayette, CA 94549
SOLD JUN 12, 2026
$2,810,000
E
4 beds3.5 baths2,442 sq ft
1125 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

$2,612,800

Est. take-home

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Est. cash available

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Rent

$8,888/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

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See all

Provided by Redfin

Sale history for 3844 Happy Valley Rd

Year

Property tax

Land + Additions

Assessment*

2026

$25,173 (+2.9%)

$601,954 + $1,493,125

$2,095,079

2025

$24,462 (+1.7%)

$601,954 + $1,493,125

$2,095,079

2024

$24,049 (+1.7%)

$590,151 + $1,463,849

$2,054,000

2023

$23,639 (+1.5%)

$578,580 + $1,435,147

$2,013,727

2022

$23,280 (+3.0%)

$567,236 + $1,407,007

$1,974,243

2021

$22,608 (−0.4%)

$556,114 + $1,379,419

$1,935,533

2020

$22,705 (+2.3%)

$545,210 + $1,352,372

$1,897,582

2019

$22,197 (+3.7%)

$539,620 + $1,338,506

$1,878,126

2018

$21,415 (+1.7%)

$529,040 + $1,312,261

$1,841,301

2017

$21,049 (+1.8%)

$508,498 + $1,261,305

$1,769,803

2016

$20,672 (+77.8%)

$508,498 + $1,261,305

$1,769,803

2015

$11,625 (+75.1%)

$498,528 + $1,236,574

$1,735,102

2014

$6,639 (−36.2%)

$481,422

2013

$10,408 (+3.1%)

$481,422

2012

$10,094 (+1.6%)

$479,247 + $350,617

$829,864

2011

$9,935 (+2.8%)

$469,850 + $343,743

$813,593

2010

$9,667 (+0.8%)

$460,638 + $337,003

$797,641

2009

$9,590 (+1.7%)

$457,196 + $334,485

$791,681

2008

$9,426

$458,283 + $335,280

$793,563

Tax history for 3844 Happy Valley Rd

Year

Property tax

Land + Additions

Assessment*

2026

$25,173 (+2.9%)

$601,954 + $1,493,125

$2,095,079

2025

$24,462 (+1.7%)

$601,954 + $1,493,125

$2,095,079

2024

$24,049 (+1.7%)

$590,151 + $1,463,849

$2,054,000

2023

$23,639 (+1.5%)

$578,580 + $1,435,147

$2,013,727

2022

$23,280 (+3.0%)

$567,236 + $1,407,007

$1,974,243

2021

$22,608 (−0.4%)

$556,114 + $1,379,419

$1,935,533

2020

$22,705 (+2.3%)

$545,210 + $1,352,372

$1,897,582

2019

$22,197 (+3.7%)

$539,620 + $1,338,506

$1,878,126

2018

$21,415 (+1.7%)

$529,040 + $1,312,261

$1,841,301

2017

$21,049 (+1.8%)

$508,498 + $1,261,305

$1,769,803

2016

$20,672 (+77.8%)

$508,498 + $1,261,305

$1,769,803

2015

$11,625 (+75.1%)

$498,528 + $1,236,574

$1,735,102

2014

$6,639 (−36.2%)

$481,422

2013

$10,408 (+3.1%)

$481,422

2012

$10,094 (+1.6%)

$479,247 + $350,617

$829,864

2011

$9,935 (+2.8%)

$469,850 + $343,743

$813,593

2010

$9,667 (+0.8%)

$460,638 + $337,003

$797,641

2009

$9,590 (+1.7%)

$457,196 + $334,485

$791,681

2008

$9,426

$458,283 + $335,280

$793,563

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

Permits

May 28, 2020 • Final

Building/commercial/mic/misc.

Perform work on an existing wireless communication pole in the city right-of-way. Replace the surge suppression and power fiber trunk cable, and install a new remote radio unit and couplers.

Electrical

May 13, 2015 • Final

Building/commercial/d/demolition

Demolish an existing single-family home.

Demolition

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

Interior

Room Information
# of Rooms: 10

Exterior

Property Information
Subdivision Name: ACALANES RHOS
Living Sq. Ft: 4,667
Ground Floor Sq. Ft: 3,514
Building Sq. Ft: 4,667
# of Stories: 2
Legal Description: RO ACALANES .98 AC

Parking & Garage Information
Garage/Parking Sq. Ft: 1,022

Lot Information
# of Buildings: 1
Land Sq. Ft: 42,689
Acres: 0.98
County Use Description: SINGLE FAMILY

Financial

Assessor Information
Assessment Year: 2026

Public facts

Beds: 5
Baths: 4.0
Sq. Ft.: 4,667
Stories: 2.0
Lot Size: 0.98 acres
Style: Single Family Residential
Year Built: 2014
Year Renovated: 2014
County: Contra Costa County
APN: 2461000065

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

8 days above 95° expected this year, 17 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

$2.65M – $3.21M

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OPEN TODAY, 1PM TO 4PMHOT HOME

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Home values near 3844 Happy Valley Rd

Data from public records.

Address	Redfin Estimate
3862 Happy Valley Rd, Lafayette, CA 5 Beds \| 5 Baths \| 3832 Sq. Ft.	$3,075,896
3848 Happy Valley Rd, Lafayette, CA 4 Beds \| 4 Baths \| 3568 Sq. Ft.	$4,219,916
3868 Happy Valley Rd, Lafayette, CA 5 Beds \| 3 Baths \| 4140 Sq. Ft.	$3,102,712
3832 Happy Valley Rd, Lafayette, CA 5 Beds \| 5 Baths \| 3426 Sq. Ft.	$2,454,455
1249 Panorama Dr, Lafayette, CA 3 Beds \| 3 Baths \| 2396 Sq. Ft.	$2,476,367
1257 Panorama Dr, Lafayette, CA 4 Beds \| 3.5 Baths \| 3622 Sq. Ft.	$4,294,853
21 Cosso Ct, Lafayette, CA 3 Beds \| 2.5 Baths \| 2522 Sq. Ft.	$3,356,603

Address	Redfin Estimate
3830 Happy Valley Rd, Lafayette, CA 6 Beds \| 6 Baths \| 6302 Sq. Ft.	$3,728,010
3834 Happy Valley Rd, Lafayette, CA 2 Beds \| 1 Baths \| 1299 Sq. Ft.	$1,672,285
3840 Happy Valley Rd, Lafayette, CA 5 Beds \| 3.5 Baths \| 3866 Sq. Ft.	$3,808,384
3836 Happy Valley Rd, Lafayette, CA 4 Beds \| 4 Baths \| 3548 Sq. Ft.	$3,492,080
1270 Panorama Dr, Lafayette, CA 3 Beds \| 5 Baths \| 4455 Sq. Ft.	$3,782,608
1253 Panorama Dr, Lafayette, CA 4 Beds \| 3 Baths \| 3703 Sq. Ft.	$2,732,072
1262 Panorama Dr, Lafayette, CA 4 Beds \| 4 Baths \| 3397 Sq. Ft.	$2,998,655

Address	Redfin Estimate
3838 Happy Valley Rd, Lafayette, CA 4 Beds \| 3 Baths \| 3065 Sq. Ft.	$3,561,749
3828 Happy Valley Rd, Lafayette, CA 5 Beds \| 6.5 Baths \| 7500 Sq. Ft.	$7,779,398
3829 Happy Valley Rd, Lafayette, CA 4 Beds \| 4 Baths \| 4820 Sq. Ft.	$4,729,473
3829 Happy Valley Rd, Lafayette, CA 4 Beds \| 4 Baths \| 4820 Sq. Ft.	$4,358,493
1242 Panorama Dr, Lafayette, CA 5 Beds \| 4 Baths \| 3717 Sq. Ft.	$3,382,707
1260 Panorama Dr, Lafayette, CA 4 Beds \| 3 Baths \| 2823 Sq. Ft.	$2,590,603
1245 Panorama Dr, Lafayette, CA 3 Beds \| 3 Baths \| 2632 Sq. Ft.	$2,880,092

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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 3844 Happy Valley Rd

Tax history for 3844 Happy Valley Rd

Permits

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 3844 Happy Valley Rd

More real estate resources