3646 Happy Valley Rd

3,470 Sq. Ft.
$950 / Sq. Ft.
3,470
Sq. Ft.
$950
per Sq. Ft.

Description

Located down a private country lane sits this stunning contemporary masterpiece nestled amongst Happy Valley's majestic oaks. From the moment you arrive, you will notice custom epa modern fencing, curated drought-tolerant landscaping, and a dramatic entry walkway which all set the tone for the exceptional living experience within. The expansive great room features soaring ceilings, a designer chandelier, and walls of incredible Marvin sliding glass doors that open to the ultimate California indoor/outdoor...Located down a private country lane sits this stunning contemporary masterpiece nestled amongst Happy Valley's majestic oaks. From the moment you arrive, you will notice custom epa modern fencing, curated drought-tolerant landscaping, and a dramatic entry walkway which all set the tone for the exceptional living experience within. The expansive great room features soaring ceilings, a designer chandelier, and walls of incredible Marvin sliding glass doors that open to the ultimate California indoor/outdoor living space — a covered loggia with motorized louvered pergola, ceiling fan, built-in firepit table, outdoor TV, and sparkling pool surrounded by lush, mature landscaping. The chef’s kitchen dazzles with an oversized waterfall island, crisp white cabinetry, premium appliances, and dramatic globe pendant lighting. The formal dining room makes every gathering an occasion with its artisan fixture and vibrant designer accents. A sophisticated wet bar rounds out the main living area — ideal for entertaining. Downstairs features three spacious bedrooms, two and a half baths, and an incredible laundry room/office space/ mudroom off the garage. Located upstairs, the private, primary suite is a true retreat, offering a spa-inspired bath and a custom walk-in closet. Incredible loft area off primary bedroom is an ideal offie space. This home delivers the perfect marriage of architectural integrity, designer interiors, and resort-style outdoor living!
  1. Listed by Julie Dudum Del Santo • DRE #01290985 • Dudum Real Estate Group

Property Details for 3646 Happy Valley Road

City
LAFAYETTE
Dist Neighborhood Subdiv
HAPPY VALLEY
Building Type
Detached
Property Sub Type
Detached
Style
Modern/High Tech
Garage Spaces
2
Garage/Parking
Attached
LISTING UPDATED: 06/07/2026 04:18 PM

Property Details for 3646 Happy Valley Road

StatusNew
MLS #41137402
Days on Compass2
Taxes-
HOA Fees-
Condo/Co-op Fees-
Property TypeSingle Family
MLS TypeResidential / Detached
Year Built1949
Lot Size0.32 AC / 13,939 SF
CountyContra Costa County

Location

Listing Courtesy of Dudum Real Estate Group, Julie Dudum Del Santo, DRE #01290985
Add your commute

Building Information for 3646 Happy Valley Road

Stories2Year Built1949Building Size-Lot Size0.32 AC / 13,939 SF

Payment Calculator

Get preapproved with
OriginPoint Mortgage or Rocket Mortgage1

$17,875 per month

30 year fixed, 6.36% Interest

Principal and Interest

$16,419

Property Taxes

$1,456

HOA Dues

$0

The Payment Calculator is for illustrative purposes only.

Know your buying power with a preapproval and custom rate in minutes

Rocket Mortgage1

Property Information for 3646 Happy Valley Road

Features
Feature Details
  • Fireplaces: 1
  • FIREPLACES: Family Room
  • Flooring: Carpet, Hardwood
  • Garage: Yes
  • Laundry: Laundry Room
  • Pool Type: Gas Heat
  • Pool: Private
Room Details
  • Rooms Total: 9
  • Additional Rooms: Den / Study / Office, Laundry Room
  • Kitchen Features: Breakfast Bar, Stone Counters, Dishwasher, Eat-in Kitchen, Refrigerator, Updated Kitchen
  • Bedrooms Count: 4
  • Bathrooms Total Count: 3.0
  • Room Additional: Den, Formal Dining Room, Office, Kitchen, Laundry, Primary Bathroom, Primary Bedroom
  • BATH NON-PRMY INCLUDE: Shower Over Tub, Updated Baths
  • BATH-PRIMARY INCLUDES: Stall Shower, Tile, Tub, Updated Baths
  • Bathrooms Half: 1
  • ADU Y/N: No
Utility Details
  • Cooling: Central Air
  • Heating: Forced Air 1 Zone
  • Solar: None
Lot / Property Details
Home Owners Association
  • HOA: No
Property Details
  • Additional Equipment: Garage Door Opener
  • City Transfer Tax: No
  • Construction Status: Existing
  • Exterior: Stucco
  • Level - Upper: Primary Bedrm Suite - 1, Loft
  • Lot Description: Level, Premium Lot
  • Lot Sq Ft Apx: 13939
  • Lot Size Square Feet: 13939.0
  • Roof: Other
  • Sq Ft Apx: 3470
  • Stories: Two Story
  • Street Level: 3 Bedrooms, 2.5 Baths, Laundry Facility, Main Entry
  • Yard Description: Back Yard, Fenced, Front Yard, Patio, Patio Covered, Landscaped
  • Year Built: 1949
  • Acres: 0.32
Location Details
  • Directions to Property: Happy Valley Rd, Right down private lane 3646
  • FIPS Code: 06013
  • Parcel Number: 244-180-050-1
  • Printed Neighborhood Rpt: Yes
  • Board ID: CONTRA COSTA
Additional Information
Additional Information
  • Fireplace: Yes

Property History for 3646 Happy Valley Road

DateEvent & SourcePriceAppreciation
Jun 5, 2026

Listed (Active)

MLSListings #CC41137402

$3,295,000
Jun 5, 2026

Listed (Active)

CRMLS #41137402

$3,295,000
Jun 5, 2026

Listed (Active)

EBRD #41137402

$3,295,000
DateEvent & SourcePrice
06/05/2026

Listed (Active)

MLSListings #CC41137402

$3,295,000
06/05/2026

Listed (Active)

CRMLS #41137402

$3,295,000
06/05/2026

Listed (Active)

EBRD #41137402

$3,295,000

For completeness, we often displays two records for one sale: the MLS record and the public record.

Public Records for 3646 Happy Valley Road

Taxable ValueLand$796,576Additions$622,769Total$1,419,345
Tax Record2025$17,473 ($1,456 / month)
Home Facts
Beds4Total Finished SqFt3,470 SqFtAbove Grade Finished SqFt3,470 SqFtStories2Lot Size13,939 SqFtStyleSingle Family ResidenceYear Built1949Year Renovated1972ZoningR4CountyCONTRA COSTAAPN244-180-050-1

Schools near 3646 Happy Valley Road

This home is within Acalanes Union High School District.
Rating
School
Type
Grades
Distance
Public - K to 5
Public - 6 to 8
Public - 9 to 12
Public - 9 to 12
Rating
School
Distance
Happy Valley Elementary School
PublicK to 5

M. H. Stanley Middle School
Public6 to 8

Acalanes High School
Public9 to 12

Acalanes Center For Independent Study
Public9 to 12

School ratings and boundaries are provided by GreatSchools.org and Pitney Bowes. This information should only be used as a reference. Proximity or boundaries shown here are not a guarantee of enrollment. Please reach out to schools directly to verify all information and enrollment eligibility.

Similar Homes

3646 Happy Valley Road is a single family home for sale in Lafayette, CA 94549. This property was listed for sale on June 5, 2026 by Dudum Real Estate Group, it's currently listed at $3,295,000. It has been on the market for a total of 2 days and was last sold on September 11, 2002. This listing's school districts are Acalanes Union High School District, Lafayette Elementary School District. Nearby schools include Happy Valley Elementary School, M. H. Stanley Middle School and Acalanes High School. 3646 Happy Valley Road is a 4-bed, 4-bath, 3,470 sqft single family home built in 1949.

No guarantee, warranty or representation of any kind is made regarding the completeness or accuracy of descriptions or measurements (including square footage measurements and property condition), such should be independently verified, and Compass, Inc., its subsidiaries, affiliates and their agents and associated third parties expressly disclaims any liability in connection therewith. Photos may be virtually staged or digitally enhanced and may not reflect actual property conditions. Offers of compensation are subject to change at the discretion of the seller. No financial or legal advice provided. Equal Housing Opportunity.

Listing Courtesy of Dudum Real Estate Group, Julie Dudum Del Santo, DRE #01290985

Based on information from one of the following Multiple Listing Services: San Francisco Association of Realtors, the MLSListings MLS, the BAREIS MLS, the EBRD MLS, Shasta Association of REALTORS® Information being provided is for the visitor’s personal, noncommercial use and may not be used for any purpose other than to identify prospective properties visitor may be interested in purchasing. The data contained herein is copyrighted by San Francisco Association of Realtors, the MLSListings MLS, the BAREIS MLS, the EBRD MLS, Shasta Association of REALTORS® is protected by all applicable copyright laws. Any dissemination of this information is in violation of copyright laws and is strictly prohibited. Property information referenced on this web site comes from the Internet Data Exchange (IDX) program of the MLS. This web site may reference real estate listing(s) held by a brokerage firm other than the broker and/or agent who owns this web site. For the avoidance of doubt, the accuracy of all information, regardless of source, is deemed reliable but not guaranteed and should be personally verified through personal inspection by and/or with the appropriate professionals.