Google street view image for 4075 Happy Valley Rd, Lafayette, CA 94549

Off market dec 2015 for $3.7M

$4,927,816

Est. refi paymentEst. refi $25,283/mo

•

5 ba

•

3,710

sq ft

4075 Happy Valley Rd, Lafayette, CA 94549

About this home

4075 Happy Valley Rd is a 3,710 square foot house on a 1.47 acre lot with 4 bedrooms and 5 bathrooms. - it last sold on December 10, 2015 for $3,750,000. Based on Redfin's Lafayette data, we estimate the home's value is $4,927,816.

Single-familyProperty Type

1956Year Built

1.47 acresLot Size

$1,328Est. Price/Sq.Ft.

2 car garageParking

Source:Public Records

Redfin Estimate

$4,927,816

$1.2M since sold in December 2015$21K since October

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 43.3% higher than the average sale price ($3.44M) of 6 comparable homes.

SOLD AUG 21, 2026
$4,250,000
A
4 beds3.5 baths3,399 sq ft
3814 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 SEP 9, 2026
$3,550,000
C
5 beds3.5 baths3,890 sq ft
3907 Happy Valley Rd, Lafayette, CA 94549
SOLD AUG 24, 2026
$3,800,000
D
4 beds3 baths3,125 sq ft
18 Sycamore Rd, Orinda, CA 94563
SOLD OCT 28, 2026
$1,990,000
E
4 beds3.5 baths4,015 sq ft
65 Bates Blvd, Orinda, CA 94563
SOLD SEP 11, 2026
$2,250,000
F
4 beds4 baths3,627 sq ft
12 E Altarinda, Orinda, CA 94563

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Earn from this home

Sell

$2,387,106

Est. take-home

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Refinance

Est. cash available

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Rent

$9,561/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
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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
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See all

Provided by Redfin

Sale history for 4075 Happy Valley Rd

Date

Event

Price

Public Records

Dec 10, 2015

Sold

$3,750,000

$1,011/sq ft

Public Records

Oct 19, 2006

Sold

$2,965,000

$799/sq ft

bridgeMLS, Bay East AOR, or Contra Costa AOR #40181201

Sep 25, 2006

Listing Removed

—

Public Records

Mar 25, 2002

Sold

$1,950,000

$526/sq ft

bridgeMLS, Bay East AOR, or Contra Costa AOR #11125642

Feb 24, 2002

Listing Removed

—

bridgeMLS, Bay East AOR, or Contra Costa AOR #11075855

Feb 22, 2001

Listing Removed

—

Public Records

Dec 11, 1998

Sold

$1,300,000

$350/sq ft

bridgeMLS, Bay East AOR, or Contra Costa AOR #10264931

Oct 13, 1998

Listing Removed

—

bridgeMLS, Bay East AOR, or Contra Costa AOR #28264931

Oct 13, 1998

Listing Removed

—

Year

Property tax

Land + Additions

Assessment*

2026

$53,379 (+2.3%)

$3,018,680 + $1,680,106

$4,698,786

2025

$52,166 (+1.7%)

$3,018,680 + $1,680,106

$4,698,786

2024

$51,292 (+1.7%)

$2,959,491 + $1,647,163

$4,606,654

2023

$50,444 (+1.5%)

$2,901,462 + $1,614,866

$4,516,328

2022

$49,682 (+3.0%)

$2,844,571 + $1,583,202

$4,427,773

2021

$48,245 (−0.7%)

$2,788,796 + $1,552,159

$4,340,955

2020

$48,571 (+1.6%)

$2,734,114 + $1,521,725

$4,255,839

2019

$47,801 (+7.9%)

$2,706,080 + $1,506,122

$4,212,202

2018

$44,315 (+1.7%)

$2,653,020 + $1,476,591

$4,129,611

2017

$43,555 (+1.7%)

$2,550,000 + $1,259,700

$3,809,700

2016

$42,815 (+55.0%)

$2,550,000 + $1,259,700

$3,809,700

2015

$27,614 (+3.0%)

$2,500,000 + $1,235,000

$3,735,000

2014

$26,805 (+9.9%)

$1,248,905 + $1,051,095

$2,300,000

2013

$24,385 (+6.4%)

$1,248,905 + $1,051,095

$2,300,000

2012

$22,912 (−1.1%)

$1,138,132 + $957,868

$2,096,000

2011

$23,159 (−2.8%)

$1,078,673 + $907,827

$1,986,500

2010

$23,814 (−10.0%)

$1,086,004 + $913,996

$2,000,000

2009

$26,471 (−10.5%)

$1,127,272 + $948,728

$2,076,000

2008

$29,592

$1,260,850 + $1,061,150

$2,322,000

Tax history for 4075 Happy Valley Rd

Year

Property tax

Land + Additions

Assessment*

2026

$53,379 (+2.3%)

$3,018,680 + $1,680,106

$4,698,786

2025

$52,166 (+1.7%)

$3,018,680 + $1,680,106

$4,698,786

2024

$51,292 (+1.7%)

$2,959,491 + $1,647,163

$4,606,654

2023

$50,444 (+1.5%)

$2,901,462 + $1,614,866

$4,516,328

2022

$49,682 (+3.0%)

$2,844,571 + $1,583,202

$4,427,773

2021

$48,245 (−0.7%)

$2,788,796 + $1,552,159

$4,340,955

2020

$48,571 (+1.6%)

$2,734,114 + $1,521,725

$4,255,839

2019

$47,801 (+7.9%)

$2,706,080 + $1,506,122

$4,212,202

2018

$44,315 (+1.7%)

$2,653,020 + $1,476,591

$4,129,611

2017

$43,555 (+1.7%)

$2,550,000 + $1,259,700

$3,809,700

2016

$42,815 (+55.0%)

$2,550,000 + $1,259,700

$3,809,700

2015

$27,614 (+3.0%)

$2,500,000 + $1,235,000

$3,735,000

2014

$26,805 (+9.9%)

$1,248,905 + $1,051,095

$2,300,000

2013

$24,385 (+6.4%)

$1,248,905 + $1,051,095

$2,300,000

2012

$22,912 (−1.1%)

$1,138,132 + $957,868

$2,096,000

2011

$23,159 (−2.8%)

$1,078,673 + $907,827

$1,986,500

2010

$23,814 (−10.0%)

$1,086,004 + $913,996

$2,000,000

2009

$26,471 (−10.5%)

$1,127,272 + $948,728

$2,076,000

2008

$29,592

$1,260,850 + $1,061,150

$2,322,000

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

Permits

May 5, 2021 • Final

Building - residential re-roof

Remove one layer of composition shingles and install one layer of new composition shingles.

Roofing

Aug 27, 2018 • Final

Building/residential/crc/recreation conditioned bldg

Construct an addition to an existing pool house and convert unconditioned space into conditioned space. A portion of the cabana will remain non-conditioned as per the project plans.

Addition

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: 3,710
Ground Floor Sq. Ft: 3,710
Building Sq. Ft: 3,710
# of Stories: 1
Legal Description: ACALANES GRANT

Parking & Garage Information
Garage/Parking Sq. Ft: 930

Lot Information
# of Buildings: 1
Land Sq. Ft: 64,033
Acres: 1.47
County Use Description: SINGLE FAMILY

Financial

Assessor Information
Assessment Year: 2026

Public facts

Beds: 4
Baths: 5.0
Sq. Ft.: 3,710
Stories: 1.0
Lot Size: 1.47 acres
Style: Single Family Residential
Year Built: 1956
Year Renovated: 1990
County: Contra Costa County
APN: 2470200045

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 • 0.8mi

8/10

M. H. Stanley Middle School

Public 6-8 • Assigned • 2.8mi

8/10

Acalanes High School

Public 9-12 • Assigned • 3.3mi

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, 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

$4.68M – $5.67M

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Home values near 4075 Happy Valley Rd

Data from public records.

Address	Redfin Estimate
4055 Happy Valley Road, Lafayette, CA 4 Beds \| 4 Baths \| 3853 Sq. Ft.	$6,245,374
4040 Happy Valley Road, Lafayette, CA 3 Beds \| 3 Baths \| 2607 Sq. Ft.	$2,349,138
4067 Happy Valley Road, Lafayette, CA 6 Beds \| 6.5 Baths \| 6383 Sq. Ft.	$7,545,829
4052 Happy Valley Road, Lafayette, CA 6 Beds \| 3 Baths \| 3756 Sq. Ft.	$2,648,815
4060 Happy Valley Road, Lafayette, CA 4 Beds \| 3 Baths \| 2910 Sq. Ft.	$2,437,156
4087 Happy Valley Road, Lafayette, CA 5 Beds \| 5 Baths \| 4934 Sq. Ft.	$4,169,544
4090 Happy Valley Road, Lafayette, CA 5 Beds \| 6.5 Baths \| 6211 Sq. Ft.	$8,306,768

Address	Redfin Estimate
4082 Happy Valley Road, Lafayette, CA 4 Beds \| 3 Baths \| 3665 Sq. Ft.	$3,297,673
4079 Happy Valley Road, Lafayette, CA 5 Beds \| 5 Baths \| 6187 Sq. Ft.	$5,175,711
4041 Happy Valley Road, Lafayette, CA 4 Beds \| 2 Baths \| 2358 Sq. Ft.	$3,604,092
4058 Happy Valley Road, Lafayette, CA 4 Beds \| 4 Baths \| 3380 Sq. Ft.	$2,916,830
4045 Happy Valley Road, Lafayette, CA 6 Beds \| 7 Baths \| 7010 Sq. Ft.	—
4059 Happy Valley Road, Lafayette, CA 4 Beds \| 4 Baths \| 3594 Sq. Ft.	$3,979,106
7 Cricket Hill Road, Lafayette, CA 4 Beds \| 3 Baths \| 4149 Sq. Ft.	$3,233,880

Address	Redfin Estimate
4080 Happy Valley Road, Lafayette, CA 5 Beds \| 5 Baths \| 4648 Sq. Ft.	$3,244,648
4069 Happy Valley Road, Lafayette, CA 5 Beds \| 5 Baths \| 5813 Sq. Ft.	$4,911,763
4100 Happy Valley Road, Lafayette, CA 4 Beds \| 5 Baths \| 6157 Sq. Ft.	$6,121,422
4051 Happy Valley Road, Lafayette, CA 4 Beds \| 4 Baths \| 3726 Sq. Ft.	$4,994,729
4101 Happy Valley Road, Lafayette, CA 5 Beds \| 4 Baths \| 4307 Sq. Ft.	$3,797,718
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 4075 Happy Valley Rd

Tax history for 4075 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 4075 Happy Valley Rd

More real estate resources