A rare, gated Estate in one of Lafayette's most coveted neighborhoods. Set on just under a flat acre, this extraordinary single-level property (Kathleen Burke Design) offers an approximate total of 5,740 square feet of living space, which includes a beautifully appointed 1,202-square foot guest house. A private serpentine drive leads to lush gardens, mature specimen trees, and resort-inspired grounds that create an unparalleled sense of privacy and tranquility. The main residence features four bedrooms (two currently set up as a TV room and office with built-ins) and four and one half bathrooms, expansive living spaces with hardwood flooring throughout, a stunning chef's kitchen and island with professional-grade appliances, and seamless indoor-outdoor flow through multiple French doors opening to the spectacular backyard. The luxurious primary suite offers direct patio access, custom finishes, and a spa-inspired bath, dual walk-in closets are thoughtfully designed with extensive custom cabinetry by Lloyds Custom Cabinets. Outdoors, the property transforms into a private botanical haven where meandering garden paths, curated landscaping, mature trees, and expansive entertaining spaces create an atmosphere of serenity and seclusion rarely experienced. Designed for entertaining and everyday enjoyment, the grounds showcase a outdoor dining area, sparkling rectangular pool, separate spa, built-in BBQ station, putting green, firepit, multiple gathering areas, and beautifully curated landscaping. At the heart of the guest house is a spacious great room featuring vaulted ceilings, a large fireplace, and an open-concept kitchen and dining area - providing a welcoming escape ideal for extended stays, entertaining, or relaxed everyday living. The guest house includes: two bedrooms, full bath, and laundry. From sunrise to evening glow, this extraordinary property is simply magical at every hour of the day and evening. Other features include, but not limited to: a Elan Smart Home system, solar system with Tesla power walls/battery back-up, speaker-sound system throughout home; garage with ample storage and a catering/pantry closet.
For sale
$8,398,000
3937 Happy Valley Rd, Lafayette, CA 94549
4beds
4,538sqft
Residential, Single Family Residence
Built in 2009
0.92 Acres Lot
$8,671,100 Zestimate®
$1,851/sqft
$-- HOA
What's special
Sparkling rectangular poolLarge fireplacePutting greenMature specimen treesSeparate spaPrivate serpentine driveMultiple gathering areas
- 7 days |
- 1,421 |
- 60 |
Zillow last checked:
Listing updated:
Listed by:
Glenn Beaubelle DRE #00678426 925-200-5011,
Compass
Source: CCAR,MLS#: 41137525
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Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 4
- Bathrooms: 5
- Full bathrooms: 4
- Partial bathrooms: 1
Rooms
- Room types: 4 Bedrooms, 0.5 Bath, 4 Baths, Primary Bedrm Suite - 1, Main Entry, Dining Room, Family Room, Office
Bathroom
- Features: Solid Surface, Stall Shower, Tile, Updated Baths, Stone, Window, Marble, Multiple Shower Heads, Sitting Area
Kitchen
- Features: Breakfast Nook, Counter - Solid Surface, Stone Counters, Dishwasher, Double Oven, Eat-in Kitchen, Disposal, Gas Range/Cooktop, Kitchen Island, Microwave, Oven Built-in, Pantry, Refrigerator, Trash Compactor, Updated Kitchen
Heating
- Zoned, Solar
Cooling
- Central Air
Appliances
- Included: Dishwasher, Double Oven, Gas Range, Microwave, Oven, Refrigerator, Trash Compactor, Dryer, Washer, Gas Water Heater, Tankless Water Heater
- Laundry: Laundry Room, Cabinets, Sink, Common Area
Features
- Formal Dining Room, In-Law Floorplan, Storage, Breakfast Nook, Counter - Solid Surface, Pantry, Updated Kitchen, Central Vacuum, Sound System, Smart Home
- Flooring: Hardwood, Tile, Carpet
- Windows: Double Pane Windows, Screens, Window Coverings
- Number of fireplaces: 1
- Fireplace features: Gas, Gas Starter, Living Room, Stone, Other
Interior area
- Total structure area: 4,538
- Total interior livable area: 4,538 sqft
Property
Parking
- Total spaces: 2
- Parking features: Attached, Direct Access, Other, Enclosed, Garage Faces Side, Garage Door Opener
- Attached garage spaces: 2
Accessibility
- Accessibility features: Other
Features
- Levels: One
- Stories: 1
- Exterior features: Lighting, Garden/Play, Storage, Entry Gate, Private Entrance
- Has private pool: Yes
- Pool features: Gas Heat, In Ground, Pool Cover, Pool Sweep, Outdoor Pool
- Spa features: Heated
- Fencing: Security,Fenced,Front Yard,Wood
- Has view: Yes
- View description: Hills, Trees/Woods
Lot
- Size: 0.92 Acres
- Features: Level, Premium Lot, Secluded, Back Yard, Front Yard, Landscaped, Private, Sprinklers In Rear, Side Yard, Landscape Back, Landscape Front, Yard Space
Details
- Additional structures: Shed(s)
- Parcel number: 2461200111
- Special conditions: Standard
- Other equipment: Irrigation Equipment
Construction
Type & style
- Home type: SingleFamily
- Architectural style: Traditional
- Property subtype: Residential, Single Family Residence
Materials
- Composition Shingles, Stone, Wood Shingles
- Roof: Composition
Condition
- Existing
- New construction: No
- Year built: 2009
Utilities & green energy
- Electric: Photovoltaics Seller Owned
- Sewer: Public Sewer
- Water: Public
- Utilities for property: Internet Available
Green energy
- Energy efficient items: Water Heater
- Energy generation: Solar
Community & HOA
Community
- Subdivision: Happy Valley Rd
HOA
- Has HOA: No
Location
- Region: Lafayette
Financial & listing details
- Price per square foot: $1,851/sqft
- Tax assessed value: $5,107,852
- Annual tax amount: $57,529
- Date on market: 6/8/2026
Estimated market value
$8,671,100
$8.24M - $9.28M
$18,463/mo
Price history
| Date | Event | Price |
|---|---|---|
| 6/8/2026 | Listed for sale | $8,398,000+5%$1,851/sqft |
Source:  CCAR #41137525 Report a problem | ||
| 8/26/2025 | Sold | $8,000,000+45.5%$1,763/sqft |
Source: Public Record Report a problem | ||
| 9/10/2014 | Sold | $5,500,000$1,212/sqft |
Source: Public Record Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | $57,529 +1.7% | $5,107,852 +2% |
| 2024 | $56,565 +1.7% | $5,007,699 +2% |
| 2023 | $55,631 +1.5% | $4,909,510 +2% |
| 2022 | $54,789 +3% | $4,813,246 +2% |
| 2021 | $53,202 -0.7% | $4,718,869 +1% |
| 2020 | $53,572 +1.6% | $4,670,483 +2% |
| 2019 | $52,750 +3.7% | $4,578,906 +2% |
| 2018 | $50,877 +1.8% | $4,489,125 +2% |
| 2017 | $49,973 +1.7% | $4,401,104 -3.4% |
| 2016 | $49,158 -20.2% | $4,554,809 -17.2% |
| 2015 | $61,607 +184.2% | $5,500,000 +199.2% |
| 2014 | $21,681 | $1,837,991 +0.5% |
| 2013 | -- | $1,829,686 +2% |
| 2012 | -- | $1,793,811 +2% |
| 2011 | -- | $1,758,639 +22.3% |
| 2010 | -- | $1,437,447 +280% |
| 2009 | -- | $378,248 +2% |
| 2008 | -- | $370,832 +6.6% |
| 2007 | -- | $348,033 +4.1% |
| 2006 | -- | $334,347 +11.5% |
| 2005 | -- | $299,871 +98.8% |
| 2004 | -- | $150,855 +1.9% |
| 2003 | -- | $148,091 +2% |
| 2002 | -- | $145,188 +2% |
| 2001 | -- | $142,342 |
Find assessor info on the county website
Monthly payment
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Mortgage interest rates are dependent on a number of factors, including credit score, down payment, and repayment length. Interest rate data provided by Zillow Group Marketplace, Inc. as of 1/1/1970 from various mortgage lenders with which we have lead or other similar arrangements; the Estimated Payment is an average of those rates.
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Climate risks
Neighborhood: 94549
Nearby schools
GreatSchools rating
- 8/10Happy Valley Elementary SchoolGrades: K-5Distance: 0.3 mi
- 8/10M. H. Stanley Middle SchoolGrades: 6-8Distance: 2.2 mi
- 10/10Acalanes High SchoolGrades: 9-12Distance: 2.8 mi
Schools provided by the listing agent
- District: Happy Valley Elementary
Source: CCAR. This data may not be complete. We recommend contacting the local school district to confirm school assignments for this home.
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- California
- Contra Costa County
- Lafayette
- 94549
- 3937 Happy Valley Rd
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