Google street view image for 4087 Happy Valley Rd, Lafayette, CA 94549

Off market dec 2020 for $3.5M

$4,169,544

Est. refi paymentEst. refi $21,301/mo

•

5 ba

•

4,934

sq ft

4087 Happy Valley Rd, Lafayette, CA 94549

About this home

4087 Happy Valley Rd is a 4,934 square foot house on a 1.03 acre lot with 5 bedrooms and 5 bathrooms. - it last sold on December 15, 2020 for $3,520,000. Based on Redfin's Lafayette data, we estimate the home's value is $4,169,544.

Single-familyProperty Type

1966Year Built

1.03 acresLot Size

$845Est. Price/Sq.Ft.

2 car garageParking

Source:Public Records

Redfin Estimate

$4,169,544

$650K since sold in December 2020$231K since October

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 48.8% higher than the average sale price ($2.80M) 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 OCT 27, 2026
$2,115,000
B
5 beds3 baths4,579 sq ft
128 Diablo View Dr, Orinda, CA 94563
SOLD SEP 11, 2026
$2,250,000
C
4 beds4 baths3,627 sq ft
12 E Altarinda, Orinda, CA 94563
SOLD MAR 23, 2026
$2,650,000
D
5 beds3.5 baths3,434 sq ft
475 Dalewood Dr, Orinda, CA 94563
SOLD JUN 4, 2026
$3,450,000
E
6 beds4.5 baths4,354 sq ft
3 Honey Hill Ct, Orinda, CA 94563
SOLD JUL 27, 2026
$2,800,000
F
5 beds3.5 baths3,169 sq ft
1038 Pine Ln, Lafayette, CA 94549

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Earn from this home

Sell

$1,463,643

Est. take-home

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Refinance

Est. cash available

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Rent

$9,904/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

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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
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See all

Provided by Redfin

Sale history for 4087 Happy Valley Rd

Year

Property tax

Land + Additions

Assessment*

2026

$52,648 (+5.9%)

$2,760,201 + $1,871,161

$4,631,362

2025

$49,708 (+18.6%)

$2,760,201 + $1,871,161

$4,631,362

2024

$41,925 (+1.7%)

$2,706,080 + $1,674,080

$4,380,160

2023

$41,228 (+1.5%)

$2,321,169 + $1,334,671

$3,655,840

2022

$40,604 (+3.0%)

$2,275,656 + $1,308,501

$3,584,157

2021

$39,430 (−0.6%)

$2,231,036 + $1,282,845

$3,513,881

2020

$39,678 (+1.7%)

$2,187,291 + $1,257,692

$3,444,983

2019

$38,997 (+3.7%)

$2,164,864 + $1,244,796

$3,409,660

2018

$37,616 (+1.7%)

$2,122,416 + $1,220,389

$3,342,805

2017

$36,972 (+1.7%)

$2,040,000 + $1,173,000

$3,213,000

2016

$36,338 (+75.6%)

$2,040,000 + $1,173,000

$3,213,000

2015

$20,689 (+0.8%)

$2,000,000 + $1,150,000

$3,150,000

2014

$20,522 (+1.1%)

$781,539 + $952,094

$1,733,633

2013

$20,298 (+3.1%)

$781,539 + $952,094

$1,733,633

2012

$19,693 (+1.5%)

$778,007 + $947,792

$1,725,799

2011

$19,406 (+1.7%)

$762,752 + $929,208

$1,691,960

2010

$19,082 (+0.2%)

$747,797 + $910,989

$1,658,786

2009

$19,052 (+1.8%)

$742,209 + $904,181

$1,646,390

2008

$18,723

$743,973 + $906,329

$1,650,302

Tax history for 4087 Happy Valley Rd

Year

Property tax

Land + Additions

Assessment*

2026

$52,648 (+5.9%)

$2,760,201 + $1,871,161

$4,631,362

2025

$49,708 (+18.6%)

$2,760,201 + $1,871,161

$4,631,362

2024

$41,925 (+1.7%)

$2,706,080 + $1,674,080

$4,380,160

2023

$41,228 (+1.5%)

$2,321,169 + $1,334,671

$3,655,840

2022

$40,604 (+3.0%)

$2,275,656 + $1,308,501

$3,584,157

2021

$39,430 (−0.6%)

$2,231,036 + $1,282,845

$3,513,881

2020

$39,678 (+1.7%)

$2,187,291 + $1,257,692

$3,444,983

2019

$38,997 (+3.7%)

$2,164,864 + $1,244,796

$3,409,660

2018

$37,616 (+1.7%)

$2,122,416 + $1,220,389

$3,342,805

2017

$36,972 (+1.7%)

$2,040,000 + $1,173,000

$3,213,000

2016

$36,338 (+75.6%)

$2,040,000 + $1,173,000

$3,213,000

2015

$20,689 (+0.8%)

$2,000,000 + $1,150,000

$3,150,000

2014

$20,522 (+1.1%)

$781,539 + $952,094

$1,733,633

2013

$20,298 (+3.1%)

$781,539 + $952,094

$1,733,633

2012

$19,693 (+1.5%)

$778,007 + $947,792

$1,725,799

2011

$19,406 (+1.7%)

$762,752 + $929,208

$1,691,960

2010

$19,082 (+0.2%)

$747,797 + $910,989

$1,658,786

2009

$19,052 (+1.8%)

$742,209 + $904,181

$1,646,390

2008

$18,723

$743,973 + $906,329

$1,650,302

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

Permits

Jul 16, 2025 • Final

Building/residential/ad/single family addition

Construct a two-story addition to an existing single-family home. The project includes a horizontal addition to the first floor and a vertical addition on the second floor consisting of two bedrooms and one bathroom.

Addition

Jul 3, 2025 • Final

Building/residential/mir/miscellaneous residential

Install new hardscaping, a pool deck, a shade structure, a fire pit, and a barbecue pad as part of a new landscaping project.

Grading

Pool and hot tub

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: 11

Exterior

Pool Information
Has Pool

Property Information
Subdivision Name: ACALANES RHO
Living Sq. Ft: 4,934
Ground Floor Sq. Ft: 4,217
Building Sq. Ft: 4,934
# of Stories: 2
Legal Description: POR RO ACALANES & POR ADJ PCL B

Parking & Garage Information
Garage/Parking Sq. Ft: 510

Lot Information
# of Buildings: 1
Land Sq. Ft: 44,867
Acres: 1.03
County Use Description: SINGLE FAMILY

Financial

Assessor Information
Assessment Year: 2026

Public facts

Beds: 5
Baths: 5.0
Sq. Ft.: 4,934
Stories: 2.0
Lot Size: 1.03 acres
Style: Single Family Residential
Year Built: 1966
Year Renovated: 2010
County: Contra Costa County
APN: 2470200235

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 • 0.9mi

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)

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

$3.96M – $4.80M

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Home values near 4087 Happy Valley Rd

Data from public records.

Address	Redfin Estimate
4082 Happy Valley Road, Lafayette, CA 4 Beds \| 3 Baths \| 3665 Sq. Ft.	$3,297,673
4067 Happy Valley Road, Lafayette, CA 6 Beds \| 6.5 Baths \| 6383 Sq. Ft.	$7,545,829
4105 Happy Valley Road, Lafayette, CA 4 Beds \| 2.5 Baths \| 3086 Sq. Ft.	$2,901,497
4107 Happy Valley Road, Lafayette, CA 5 Beds \| 5.5 Baths \| 6230 Sq. Ft.	$4,643,831
4128 Happy Valley Road, Lafayette, CA 5 Beds \| 4.5 Baths \| 4800 Sq. Ft.	$3,521,249
4109 Happy Valley Road, Lafayette, CA 6 Beds \| 4 Baths \| 3796 Sq. Ft.	$3,271,379
4090 Happy Valley Road, Lafayette, CA 5 Beds \| 6.5 Baths \| 6211 Sq. Ft.	$8,306,768

Address	Redfin Estimate
4080 Happy Valley Road, Lafayette, CA 5 Beds \| 5 Baths \| 4648 Sq. Ft.	$3,244,648
4116 Happy Valley Road, Lafayette, CA 5 Beds \| 4 Baths \| 4830 Sq. Ft.	$3,640,260
4058 Happy Valley Road, Lafayette, CA 4 Beds \| 4 Baths \| 3380 Sq. Ft.	$2,916,830
4124 Happy Valley Road, Lafayette, CA 4 Beds \| 5 Baths \| 4423 Sq. Ft.	$3,331,625
4120 Happy Valley Road, Lafayette, CA 5 Beds \| 4.5 Baths \| 4986 Sq. Ft.	$2,552,910
4101 Happy Valley Road, Lafayette, CA 5 Beds \| 4 Baths \| 4307 Sq. Ft.	$3,797,718
4115 Happy Valley Road, Lafayette, CA - Beds \| - Baths \| 4948 Sq. Ft.	$4,392,960

Address	Redfin Estimate
4079 Happy Valley Road, Lafayette, CA 5 Beds \| 5 Baths \| 6187 Sq. Ft.	$5,175,711
4100 Happy Valley Road, Lafayette, CA 4 Beds \| 5 Baths \| 6157 Sq. Ft.	$6,121,422
4103 Happy Valley Road, Lafayette, CA 4 Beds \| 2.5 Baths \| 3027 Sq. Ft.	$2,474,099
4060 Happy Valley Road, Lafayette, CA 4 Beds \| 3 Baths \| 2910 Sq. Ft.	$2,437,156
4075 Happy Valley Road, Lafayette, CA 4 Beds \| 5 Baths \| 3710 Sq. Ft.	$4,927,816
4081 Happy Valley Road, Lafayette, CA 4 Beds \| 4 Baths \| 3606 Sq. Ft.	$2,941,529
6 Cricket Hill Road, Lafayette, CA 6 Beds \| 7 Baths \| 8234 Sq. Ft.	$4,503,486

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About this home

Redfin Estimate

Earn from this home

Market trends in 94549, CA

Sale history for 4087 Happy Valley Rd

Tax history for 4087 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 4087 Happy Valley Rd

More real estate resources