Google street view image for 3991 Happy Valley Rd, Lafayette, CA 94549

Off market

$6,927,488

•

6 ba

•

7,403

sq ft

3991 Happy Valley Rd, Lafayette, CA 94549

About this home

3991 Happy Valley Rd is a 7,403 square foot house on a 2.21 acre lot with 7 bedrooms and 6 bathrooms. Based on Redfin's Lafayette data, we estimate the home's value is $6,927,488.

Single-familyProperty Type

2012Year Built

2.21 acresLot Size

$936Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$6,927,488

$200K since October

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 69.4% higher than the average sale price ($4.09M) of 6 comparable homes.

SOLD OCT 1, 2026
$5,450,000
A
5 beds4.5 baths6,045 sq ft
42 Charles Hill Cir, Orinda, CA 94563
SOLD JUL 20, 2026
$3,570,000
B
6 beds5 baths5,755 sq ft
1 Gardiner Ct, Orinda, CA 94563
SOLD JUN 25, 2026
$3,475,000
C
5 beds4.5 baths3,900 sq ft
1059 Lizann Dr, Lafayette, CA 94549
SOLD MAY 13, 2026
$3,550,000
D
5 beds4.5 baths5,020 sq ft
1006 Howard Hills Rd, Lafayette, CA 94549
SOLD MAY 11, 2026
1248 Upper Happy Valley Rd, Lafayette, CA 94549
$4,295,000
E
5 beds4.5 baths4,830 sq ft
1248 Upper Happy Valley Rd, Lafayette, CA 94549
SOLD APR 20, 2026
$4,200,000
F
4 beds4.5 baths4,418 sq ft
1161 Oleander Dr, Lafayette, CA 94549

Claim this home to receive a free report every month with insights on the changing estimate.

Earn from this home

Sell

$6,562,795

Est. take-home

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Rent

$9,769/mo

Redfin rental estimate

List your home for rent

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
1175 Oleander Dr, Lafayette, CA 94549
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 3991 Happy Valley Rd

Year

Property tax

Land + Additions

Assessment*

2026

$56,145 (+2.3%)

$2,304,115 + $2,657,054

$4,961,169

2025

$54,882 (+1.7%)

$2,304,115 + $2,657,054

$4,961,169

2024

$53,962 (+1.7%)

$2,258,937 + $2,604,955

$4,863,892

2023

$53,069 (+1.5%)

$2,214,645 + $2,553,878

$4,768,523

2022

$52,266 (+3.0%)

$2,171,221 + $2,503,802

$4,675,023

2021

$50,752 (−0.7%)

$2,128,649 + $2,454,708

$4,583,357

2020

$51,100 (+1.6%)

$2,086,911 + $2,406,577

$4,493,488

2019

$50,303 (+3.7%)

$2,065,513 + $2,381,901

$4,447,414

2018

$48,517 (+1.7%)

$2,025,013 + $2,335,198

$4,360,211

2017

$47,684 (+1.7%)

$1,946,380 + $2,244,520

$4,190,900

2016

$46,876 (+2.7%)

$1,946,380 + $2,244,520

$4,190,900

2015

$45,628 (+8.2%)

$1,908,216 + $2,200,510

$4,108,726

2014

$42,188 (+65.9%)

$1,842,736 + $1,837,000

$3,679,736

2013

$25,427 (−9.4%)

$1,842,736 + $1,837,000

$3,679,736

2012

$28,054 (−4.2%)

$1,834,408 + $349,000

$2,183,408

2011

$29,285 (+631.6%)

$1,500,000 + $950,000

$2,450,000

2010

$4,003 (+4.8%)

$1,763,177 + $1,007,530

$2,770,707

2009

$3,819 (+1.7%)

$104,444 + $165,992

$270,436

2008

$3,757

$104,693 + $166,387

$271,080

Tax history for 3991 Happy Valley Rd

Year

Property tax

Land + Additions

Assessment*

2026

$56,145 (+2.3%)

$2,304,115 + $2,657,054

$4,961,169

2025

$54,882 (+1.7%)

$2,304,115 + $2,657,054

$4,961,169

2024

$53,962 (+1.7%)

$2,258,937 + $2,604,955

$4,863,892

2023

$53,069 (+1.5%)

$2,214,645 + $2,553,878

$4,768,523

2022

$52,266 (+3.0%)

$2,171,221 + $2,503,802

$4,675,023

2021

$50,752 (−0.7%)

$2,128,649 + $2,454,708

$4,583,357

2020

$51,100 (+1.6%)

$2,086,911 + $2,406,577

$4,493,488

2019

$50,303 (+3.7%)

$2,065,513 + $2,381,901

$4,447,414

2018

$48,517 (+1.7%)

$2,025,013 + $2,335,198

$4,360,211

2017

$47,684 (+1.7%)

$1,946,380 + $2,244,520

$4,190,900

2016

$46,876 (+2.7%)

$1,946,380 + $2,244,520

$4,190,900

2015

$45,628 (+8.2%)

$1,908,216 + $2,200,510

$4,108,726

2014

$42,188 (+65.9%)

$1,842,736 + $1,837,000

$3,679,736

2013

$25,427 (−9.4%)

$1,842,736 + $1,837,000

$3,679,736

2012

$28,054 (−4.2%)

$1,834,408 + $349,000

$2,183,408

2011

$29,285 (+631.6%)

$1,500,000 + $950,000

$2,450,000

2010

$4,003 (+4.8%)

$1,763,177 + $1,007,530

$2,770,707

2009

$3,819 (+1.7%)

$104,444 + $165,992

$270,436

2008

$3,757

$104,693 + $166,387

$271,080

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

Permits

May 13, 2019 • Final

Building/grading/gl/grading lafayette

Perform an annual stormwater inspection.

Grading

Mar 14, 2017 • Final

Building/grading/gl/grading lafayette

Perform an inspection of storm water facilities.

Grading

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: 17

Exterior

Pool Information
Has Pool

Property Information
Subdivision Name: ACALANES RHO
Living Sq. Ft: 7,403
Ground Floor Sq. Ft: 4,902
Building Sq. Ft: 7,403
# of Stories: 2
Legal Description: RO ACALANES 2.21 AC

Parking & Garage Information
Garage/Parking Sq. Ft: 1,075

Lot Information
# of Buildings: 1
Land Sq. Ft: 96,268
Acres: 2.21
County Use Description: SINGLE FAMILY

Financial

Assessor Information
Assessment Year: 2026

Public facts

Beds: 7
Baths: 6.0
Sq. Ft.: 7,403
Stories: 2.0
Lot Size: 2.21 acres
Style: Single Family Residential
Year Built: 2012
Year Renovated: 2014
County: Contra Costa County
APN: 2461700011

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 • 0.5mi

8/10

M. H. Stanley Middle School

Public 6-8 • Assigned • 2.4mi

8/10

Acalanes High School

Public 9-12 • Assigned • 3.0mi

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

3/10 Heat Factor

7 days above 92° 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

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)

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

$6.58M – $7.97M

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New listings for sale in 94549

COMING SOON

$1,092,000

2 beds2 baths1,110 sq ft

1003 Woodbury Rd #104, Lafayette, CA 94549

Neighborhood shops • Local trails • Quiet place

COMING SOON

$1,299,000

3 beds2 baths1,651 sq ft

490 Florence Dr, Lafayette, CA 94549

Backyard oasis • Inviting patio • Built-in firepit

OPEN TODAY, 1PM TO 4PM3D WALKTHROUGH

$1,495,000

3 beds2 baths1,670 sq ft

3241 Judith Ln, Lafayette, CA 94549

Designer kitchen • Custom art wall • Spa inspired bath

3D WALKTHROUGH

$2,895,000

4 beds4.5 baths4,225 sq ft

3370 Stage Coach Dr, Lafayette, CA 94549

Gated neighborhood • Miele appliances • Wine refrigerator

OPEN TODAY, 1PM TO 4PMHOT HOME

$2,975,000

4 beds3 baths2,619 sq ft

4022 Happy Valley Rd, Lafayette, CA 94549

Private office • Home gym • Updated kitchen

3D WALKTHROUGH

$999,000

3 beds3 baths2,443 sq ft

1175 Oleander Dr, Lafayette, CA 94549

One acre property • Mature trees • Private retreat

OPEN TODAY, 2PM TO 4PM

$2,695,000

5 beds3 baths2,484 sq ft

3208 Camino Colorados, Lafayette, CA 94549

Freshly renovated • Renovated kitchen • New flooring

Home values near 3991 Happy Valley Rd

Data from public records.

Address	Redfin Estimate
3957 Happy Valley Road, Lafayette, CA 4 Beds \| 3 Baths \| 3440 Sq. Ft.	$3,857,929
3965 Happy Valley Road, Lafayette, CA 5 Beds \| 4 Baths \| 3726 Sq. Ft.	$4,026,428
3983 Happy Valley Road, Lafayette, CA 5 Beds \| 6 Baths \| 5775 Sq. Ft.	$6,319,787
4008 Happy Valley Road, Lafayette, CA 4 Beds \| 4 Baths \| 3915 Sq. Ft.	$3,992,713
4001 Happy Valley Road, Lafayette, CA 4 Beds \| 4 Baths \| 4498 Sq. Ft.	$5,103,487
3972 Happy Valley Road, Lafayette, CA 4 Beds \| 4.5 Baths \| 7651 Sq. Ft.	$10,529,786
1242 Upper Happy Valley Road #1240, Lafayette, CA 4 Beds \| 3 Baths \| 3870 Sq. Ft.	$2,842,678

Address	Redfin Estimate
3959 Happy Valley Road, Lafayette, CA 4 Beds \| 5 Baths \| 4408 Sq. Ft.	$5,217,625
3975 Happy Valley Road, Lafayette, CA 5 Beds \| 5 Baths \| 6254 Sq. Ft.	$6,022,776
3969 Happy Valley Road, Lafayette, CA 4 Beds \| 3 Baths \| 2773 Sq. Ft.	$2,872,565
3997 Happy Valley Road, Lafayette, CA 4 Beds \| 3 Baths \| 2465 Sq. Ft.	$2,520,833
4022 Happy Valley Road, Lafayette, CA 4 Beds \| 3 Baths \| 2619 Sq. Ft.	$3,210,793
1232 Upper Happy Valley Road, Lafayette, CA 3 Beds \| 3 Baths \| 2686 Sq. Ft.	$2,593,170
4010 Canyon Road, Lafayette, CA 5 Beds \| 7 Baths \| 6225 Sq. Ft.	$5,240,304

Address	Redfin Estimate
3995 Happy Valley Road, Lafayette, CA 4 Beds \| 4 Baths \| 3389 Sq. Ft.	$2,893,079
4015 Happy Valley Road, Lafayette, CA 5 Beds \| 6 Baths \| 6011 Sq. Ft.	$4,882,816
3981 Happy Valley Road, Lafayette, CA 5 Beds \| 5 Baths \| 4734 Sq. Ft.	$3,541,756
4030 Happy Valley Road, Lafayette, CA 5 Beds \| 5 Baths \| 4128 Sq. Ft.	$3,357,121
3993 Happy Valley Road, Lafayette, CA 3 Beds \| 5 Baths \| 4823 Sq. Ft.	$4,195,568
1248 Upper Happy Valley Road, Lafayette, CA 5 Beds \| 4.5 Baths \| 4830 Sq. Ft.	$4,033,345
1180 Upper Happy Valley Road, Lafayette, CA 6 Beds \| 4 Baths \| 4242 Sq. Ft.	$3,381,447

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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 3991 Happy Valley Rd

Tax history for 3991 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 3991 Happy Valley Rd

More real estate resources