For sale

$2,495,000

Est. $17,096/mo —

•

3,859

sq ft

3686 Happy Valley Rd, Lafayette, CA 94549

About this home

EXTRAORDINARY OPPORTUNITY IN LAFAYETTE’S COVETED HAPPY VALLEY! Tucked away down a private lane, behind a gate, in one of the Bay Area’s most desirable neighborhoods, 3686 Happy Valley Road presents a rare opportunity to create something truly spectacular. Set on nearly three-quarters of an acre in a beautiful, tranquil creekside setting, this remarkable property offers an exceptional combination of location, privacy, space, and endless potential. With approximately 3,859 square feet, five bedrooms, and four bathrooms, the home features generous living spaces, beautiful hardwood floors, dramatic wood-beamed ceilings, a striking brick fireplace, and expansive windows that invite the surrounding natural beauty indoors. Outdoors, discover your own private retreat with a swimming pool, expansive entertaining areas, and a picturesque backdrop of mature trees and lush greenery. An attached two-car garage and separate, spacious boat garage offer exceptional flexibility for vehicles, storage, and hobbies. Ready for its next chapter, this property is an incredible opportunity to live as is, or renovate, reimagine, and transform a home in a truly irreplaceable setting. Whether envisioning a stunning contemporary retreat or a timeless Happy Valley estate, the possibilities are extraordinary. Opportunities to create your dream home in a location this special are few and far between. Offered at $2,495,000, this is your chance to unlock the potential of one of Lafayette’s most sought-after addresses!

Single-familyProperty Type

1968Year Built

0.7 acresLot Size

$647Price/Sq.Ft.

4 car garageParking

Listed by Angela Clay •DRE #01361143 • Dudum Real Estate Group

Listed by Julie Dudum Del Santo •DRE #01290985 • Dudum Real Estate Group

Listing updated: Oct 12, 2026 at 08:39pm

Redfin checked: 2 minutes ago

•Source:bridgeMLS, Bay East AOR, or Contra Costa AOR #41150649

Payment calculator

$17,096 per month

Principal and interest$13,956

Property taxes

$2,599

HOA dues

Home insurance

$541

Utilities

Add

5 minutes to get started. No credit impact.

Affordability tools

See this home in person

This home is unavailable to tour on this day.

Next available date: Thursday, October 15

Open houses

No upcoming open houses.

Nearby open houses (10)

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OPEN SAT, 1PM TO 4PM3D WALKTHROUGH
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6 beds4 baths2,156 sq ft
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OPEN SUN, 11AM TO 1PM
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REDFIN OPEN SUN, 2PM TO 4PM3D WALKTHROUGH
$649,000
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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 • 1.2mi

8/10

Acalanes High School

Public 9-12 • Assigned • 1.8mi

10/10

Provided by GreatSchools

About Happy

Valley

Happy Valley, located between downtown Lafayette and the Briones Regional Park foothills, is a residential and semi-rural Lafayette neighborhood with rolling hills and equestrian properties. The neighborhood reads as a patchwork of ranch-style homes, gated lanes, and long driveways framed by oaks and open pasture. The character concentrates around the Happy Valley Road and Pleasant Hill Road junction, where morning traffic, cyclists, and school runs set a steady tempo. A short drive away, the Lafayette Reservoir loop and the Lafayette Library and Learning Center function as everyday anchors for walks, reading, and community programs. Weekends often point toward the Lafayette Farmers Market for local produce and a town-square feel. The landscape shifts quickly from manicured lots to trailheads and ridgelines, keeping the mood quiet and outdoors-oriented.

Provided by Walk Score and Local Logic

Offer insights

3686 Happy Valley Rd · $2,495,000

Strong offer

$2.63M and above

75% chance or better to win

Why $2.63M+ is a strong offer

DAYS ON MARKET

The average home goes pending in 26 days.

SALE-TO-LIST

Most homes are selling 2% above list price.

About offer insights

Property details

Interior
Exterior
Finance

Kitchen

Bathroom

Bedroom

Living

Dining

Interior features
Den
Family room
Formal dining room
Loft
Bonus room
Living room
Eat-in kitchen
Fireplace in family room

Bedrooms
5 bedrooms: 4 upstairs and 1 on the street level
Primary bedroom suite on the street level

Bathrooms
4 full bathrooms
Tile finishes
Shower-over-tub

Kitchen
Kitchen island
Dishwasher

Laundry & utility
Laundry room
Washer
Dryer

Flooring
Hardwood
Tile

Heating & cooling
Forced-air heating
Central air conditioning

Sale and tax history for 3686 Happy Valley Rd

Sale History
Tax History

Year

Property tax

Land + Additions

Assessment*

2025

$7,827 (+1.9%)

$73,152 + $494,011

$567,163

2024

$7,685 (+2.0%)

$71,718 + $484,325

$556,043

2023

$7,532 (+1.7%)

$70,312 + $474,829

$545,141

2022

$7,409 (+3.1%)

$68,934 + $465,519

$534,453

2021

$7,187 (+0.6%)

$67,583 + $456,392

$523,975

2020

$7,148 (+5.2%)

$66,258 + $447,444

$513,702

2019

$6,793 (+3.7%)

$65,579 + $442,857

$508,436

2018

$6,547 (+1.8%)

$64,294 + $434,174

$498,468

2017

$6,431 (+2.3%)

$61,799 + $417,315

$479,114

2016

$6,284 (+3.0%)

$61,799 + $417,315

$479,114

2015

$6,100 (+1.3%)

$60,588 + $409,133

$469,721

2014

$6,022 (+1.5%)

$58,509 + $395,095

$453,604

2013

$5,931 (+3.3%)

$58,509 + $395,095

$453,604

2012

$5,740 (+1.9%)

$58,245 + $393,310

$451,555

2011

$5,635 (+4.5%)

$57,103 + $385,599

$442,702

2010

$5,391 (−0.3%)

$55,984 + $378,039

$434,023

2009

$5,405 (+1.8%)

$55,566 + $375,214

$430,780

2008

$5,312

$55,699 + $376,106

$431,805

Public record

Public record
Permits

Beds

Baths

Stories

Lot width

—

Lot depth

—

Lot size

0.7 Acres

Year renovated

1975

Finished Sq. Ft.

3,859

Unfinished Sq. Ft.

—

Total Sq. Ft.

3,859

Year built

1968

Style

Single Family Residential

County

Contra Costa County

APN

2441500101

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Oct 10, 2026.

Dec 1, 2023 • Final

Building - residential mechanical

Replace a furnace in a closet and an air conditioning unit in the backyard. Replace the evaporator coil. A HERS report may be required at the final inspection.

HVAC

Jun 15, 2023 • Final

Building - residential mechanical

Replace a 4-ton air conditioning unit in the backyard and a 4-ton coil. A HERS report is required at the final inspection.

HVAC

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.

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 93° 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)

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Sun exposure

78/ 100

Good sunlight

Sunscore

There appears to be minimal shading by surrounding buildings, terrain, and vegetation.

9.1 hrs

6.1 hrs

JuneDecember

Provided by Shadowmap

Redfin Estimate for 3686 Happy Valley Rd

$2,538,920

$44K over list price of $2.50M

Nearby comparable homes

The Redfin Estimate uses 6 recent nearby sales, priced between $2.0M to $2.8M.

SOLD JUL 27, 2026
$2,800,000 Last sold price
5 beds3.5 baths3,169 sq ft
1038 Pine Ln, Lafayette, CA 94549
$237/sq ft
smaller lot
3 years older
SOLD SEP 24, 2026
$2,600,000 Last sold price
4 beds3 baths2,825 sq ft
1196 Monticello Rd, Lafayette, CA 94549
$273/sq ft
smaller lot
17 years older
SOLD AUG 18, 2026
$2,600,000 Last sold price
3 beds3 baths3,475 sq ft
1066 Dolores Dr, Lafayette, CA 94549
$101/sq ft
larger lot
26 years older
SOLD MAY 29, 2026
$2,500,000 Last sold price
4 beds2.5 baths3,059 sq ft
805 Tanglewood Dr, Lafayette, CA 94549
$170/sq ft
smaller lot
7 years newer
SOLD JUL 17, 2026
$2,050,000 Last sold price
4 beds2.5 baths2,428 sq ft
3250 Judith Ln, Lafayette, CA 94549
$197/sq ft
smaller lot
13 years older
SOLD AUG 21, 2026
$2,700,000 Last sold price
4 beds3 baths2,537 sq ft
3388 Rossi St, Lafayette, CA 94549
$417/sq ft
smaller lot
21 years older

Rental earnings

Est. $8,793 per month, based on comparable rentals

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(650) 585-3990

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Details provided by bridgeMLS, Bay East AOR, or Contra Costa AOR and may not match the public record. Learn more.

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GreatSchools Ratings provided by GreatSchools.org.

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About this home

Payment calculator

Affordability tools

See this home in person

Nearby open houses (10)

Around this home

Schools

Offer insights

Property details

Sale and tax history for 3686 Happy Valley Rd

Public record

Climate risks

Historical weather

Sun exposure

Redfin Estimate for 3686 Happy Valley Rd

Early Access listings

Nearby similar homes

New listings for sale in 94549

More real estate resources