3660 Happy Valley Rd, Santa Rosa, CA 95404

Off Market Apr 2024 for $1.7M

$1,937,291

Est. refi paymentEst. refi $6,757/mo

•

4,350

sq ft

3660 Happy Valley Rd, Santa Rosa, CA 95404

About this home

Experience this unique multi-living opportunity of 3660-3664 Happy Valley Rd, Santa Rosa, nestled in the highly sought-after Montecito Heights neighborhood. Discover unparalleled privacy and breathtaking commanding views. This tranquil oasis has been thoughtfully refreshed, boasting high-end amenities that cater to your every need. With a multi-use opportunity of an ADU, plus a separate guest suite both with full kitchens. This property offers endless possibilities. Indulge in the convenience of a 2-car + 1 car garage, 24 owned solar panels, a backup generator, and a water filtration system. Stay fit and healthy with a dedicated home gym and a separate yoga/art studio. The expansive entertaining decking with new spa. Step inside to discover a freshly painted interior, refreshed fixtures, and enjoy the convenience of a 3 level home elevator. Don't miss your chance to call this masterpiece your own.

Single-familyProperty Type

1979Year Built

0.44 acresLot Size

$445Est. Price/Sq.Ft.

3 garage spacesParking

Listed by Jim Sampietro •DRE #02128840 • Compass

•707-396-3397 (agent)

•jim@slproperties.org (agent)

Listed by Johnny Drake •DRE #01932167 • Compass

•707-228-5109 (agent)

•1johnnyrealestate@gmail.com (agent)

Bought with Ron Larson •DRE #01294928 • Coldwell Banker Realty

Redfin checked: 3 minutes ago

•Source:BAREIS #323907544

Redfin Estimate

$1,937,291

$152K since sold in April 2024$3,000 since August

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 36.2% higher than the average sale price ($1.42M) of 6 comparable homes.

SOLD JUL 10, 2026
$1,375,000
A
4 beds3 baths3,334 sq ft
2453 Delevan Way, Santa Rosa, CA 95404
SOLD SEP 4, 2026
$1,610,000
B
3 beds2.5 baths2,088 sq ft
2604 Knob Hill Dr, Santa Rosa, CA 95404
SOLD MAY 29, 2026
$1,239,000
C
4 beds2.5 baths3,247 sq ft
3302 Jeremy Ct, Santa Rosa, CA 95404
SOLD AUG 18, 2026
$1,050,000
D
4 beds2.5 baths2,064 sq ft
2205 Hillside Dr, Santa Rosa, CA 95404
SOLD AUG 18, 2026
$1,635,000
E
3 beds2.5 baths2,323 sq ft
3195 Montecito Meadow Dr, Santa Rosa, CA 95404
SOLD JUN 29, 2026
$1,624,000
F
5 beds3.5 baths3,282 sq ft
3540 Happy Valley Rd, Santa Rosa, CA 95404

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Earn from this home

Sell

$470,583

Est. take-home

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Refinance

Est. cash available

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Rent

$6,566/mo

Redfin rental estimate

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Market trends in 95404, CA

Last updated August 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

98.9%

0.1% MoM

Median sale price

$832K

$33K MoM

Avg. days on market

44d

5 days MoM

Recently sold homes

105

6 MoM

New listings for sale

NEW 21 HRS AGO
$2,695,000
4 beds3.5 baths3,264 sq ft
2835 Bardy Rd, Santa Rosa, CA 95404
EARLY ACCESS
$1,700,000
4 beds4 baths3,652 sq ft
1313 St Helena Ave, Santa Rosa, CA 95404
NEW 25 HRS AGO
$2,590,000
3 beds2.5 baths2,368 sq ft
4737 Pressley Rd, Santa Rosa, CA 95404
$3,395,000
5 beds6.5 baths5,225 sq ft
3975 Chanate Rd, Santa Rosa, CA 95404
OPEN SAT, 1PM TO 3PM
$569,000
2 beds1 bath840 sq ft
736 Brigham Ave, Santa Rosa, CA 95404
$979,500
4 beds2 baths2,144 sq ft
2604 Rancho Cabeza Dr, Santa Rosa, CA 95404
OPEN SUN, 12PM TO 2PM
$1,349,000
4 beds3 baths3,392 sq ft
3961 Park Gardens Dr, Santa Rosa, CA 95404
LISTED BY REDFIN
$1,375,000
4 beds3.5 baths3,470 sq ft
321 Gemma Cir, Santa Rosa, CA 95404
$849,000
2 beds1 bath1,590 sq ft
1515 Fair Oaks Ct, Santa Rosa, CA 95404
OPEN TODAY, 9:30AM TO 12PM
$675,000
2 beds1 bath1,152 sq ft
5444 Gates Rd, Santa Rosa, CA 95404
See all

Provided by Redfin

Sale history for 3660 Happy Valley Rd

Year

Property tax

Land + Additions

Assessment*

2025

$21,145 (+140.9%)

$742,845 + $1,114,268

$1,857,113

2024

$8,779 (+3.8%)

$728,280 + $1,092,420

$1,820,700

2023

$8,453 (+8.0%)

$132,693 + $604,606

$737,299

2022

$7,825 (+2.0%)

$130,092 + $574,024

$704,116

2021

$7,669 (+0.4%)

$127,542 + $562,769

$690,311

2020

$7,640 (+0.9%)

$125,042 + $551,735

$676,777

2019

$7,569 (+0.6%)

$123,760 + $546,078

$669,838

2018

$7,523 (+1.9%)

$121,334 + $535,371

$656,705

2017

$7,385 (+12.3%)

$116,623 + $514,583

$631,206

2015

$6,575 (+14.8%)

$114,337 + $504,494

$618,831

2014

$5,728 (+2.7%)

$110,414 + $389,142

$499,556

2013

$5,577 (+1.8%)

$110,414 + $389,142

$499,556

2012

$5,481 (+2.1%)

$109,915 + $387,384

$497,299

2011

$5,370 (+4.1%)

$107,760 + $379,789

$487,549

2010

$5,158 (+29.1%)

$105,648 + $372,343

$477,991

2009

$3,996 (−26.1%)

$104,859 + $369,561

$474,420

2007

$5,411

$121,562 + $363,175

$484,737

Tax history for 3660 Happy Valley Rd

Year

Property tax

Land + Additions

Assessment*

2025

$21,145 (+140.9%)

$742,845 + $1,114,268

$1,857,113

2024

$8,779 (+3.8%)

$728,280 + $1,092,420

$1,820,700

2023

$8,453 (+8.0%)

$132,693 + $604,606

$737,299

2022

$7,825 (+2.0%)

$130,092 + $574,024

$704,116

2021

$7,669 (+0.4%)

$127,542 + $562,769

$690,311

2020

$7,640 (+0.9%)

$125,042 + $551,735

$676,777

2019

$7,569 (+0.6%)

$123,760 + $546,078

$669,838

2018

$7,523 (+1.9%)

$121,334 + $535,371

$656,705

2017

$7,385 (+12.3%)

$116,623 + $514,583

$631,206

2015

$6,575 (+14.8%)

$114,337 + $504,494

$618,831

2014

$5,728 (+2.7%)

$110,414 + $389,142

$499,556

2013

$5,577 (+1.8%)

$110,414 + $389,142

$499,556

2012

$5,481 (+2.1%)

$109,915 + $387,384

$497,299

2011

$5,370 (+4.1%)

$107,760 + $379,789

$487,549

2010

$5,158 (+29.1%)

$105,648 + $372,343

$477,991

2009

$3,996 (−26.1%)

$104,859 + $369,561

$474,420

2007

$5,411

$121,562 + $363,175

$484,737

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

Public record

Public record
Zoning

Beds

Baths

Stories

Lot width

—

Lot depth

—

Lot size

0.44 Acres

Year renovated

1999

Sq. Ft.

4,350

Year built

1979

Style

Single Family Residential

County

Sonoma County

APN

181370019000

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Aug 13, 2026.

R-1-15

Single-Family Residential District - 15,000 sq ft

The R-1 zoning district is applied to areas of the City intended to be maintained as residential neighborhoods comprised of detached and attached single-family houses, clustered Residential hillside projects, and small multi-family projects, together with compatible accessory uses. The maximum allowable density ranges from 2 to 13 dwellings per acre, with the specific allowable density for each parcel shown on the zoning map by a numerical suffix to the R-1 map symbol see Section 20-22.040. The R-1 zoning district implements and is consistent with the Residential Very Low Density where residential clustered on hillsides is desirable, Low Density or Open Space, Low Density, and Medium Low Density land use classifications of the General Plan.

Permitted uses

Include but are not limited to:

Agriculture-Other
Day care facility
Healthcare-Other
Housing-Single unit
Housing-Student
Housing-Other
Infrastructure-Other
Housing-Mobile home park

Property details

Parking

Parking & Garage Information
Parking Total: 6
Parking Features: Attached, Detached, EV Charging, Garage Door Opener, Garage Facing Front, Interior Access
Garage Spaces: 3

Interior

Bathroom Information
# of Bathrooms (Total): 5
# of Bathrooms (Full): 5
Master Bathroom Features: Double Sinks, Marble, Multiple Shower Heads, Shower Stall(s), Sitting Area, Steam, Tile, Window
Other Bathroom Features: Bidet, Double Sinks, Quartz, Shower Stall(s), Stone, Sunken Tub, Tile, Tub, Tub w/Shower Over

Bedroom Information
# of Bedrooms (Total): 5
Master Bedroom Features: Walk-In Closet, Walk-In Closet 2+

Heating & Cooling
Cooling: Ceiling Fan(s), Central, Ductless, MultiUnits, Wall Unit(s)
Heating: Central, Fireplace(s), Gas

Interior Features
Appliances: Built-In Gas Oven, Built-In Gas Range, Built-In Refrigerator, Dishwasher, Disposal, Gas Plumbed, Gas Water Heater, Ice Maker, Microwave, Plumbed For Ice Maker, Tankless Water Heater, Wine Refrigerator
Fireplaces Total: 1
Fireplace Features: Brick, Gas Log, Gas Piped, Gas Starter, Living Room
Flooring: Carpet, Laminate, Linoleum, Marble, Stone, Tile, Wood
Interior Features: Cathedral Ceiling, Formal Entry, Open Beam Ceiling, Skylight(s), Storage Area(s)
Laundry Features: Cabinets, Gas Hook-Up, In Garage, Inside Area, Laundry Closet, Sink, Upper Floor, Washer/Dryer Stacked Included
Security Features: Carbon Mon Detector, Security System Owned, Smoke Detector
# of Stories: 2

Room Information
Room Types: Dining Room, Family Room, In Law Apartment, Kitchen, Laundry, Living Room, Sun Room, Wine Cellar
Dining Room Features: Breakfast Nook, Dining/Living Combo, Formal Area
Family Room Features: Deck Attached, View
Kitchen Features: Breakfast Area, Breakfast Room, Granite Counter, Island, Island w/Sink, Pantry Cabinet, Skylight(s)
Living Room Features: Cathedral/Vaulted, Open Beam Ceiling, Sunken, View
Levels: Two
Main Level: Bedroom(s), Dining Room, Family Room, Full Bath(s), Kitchen, Living Room
Lower Level: Bedroom(s), Full Bath(s), Garage, Kitchen, Living Room
Upper Level: Bedroom(s), Full Bath(s)

Exterior

Exterior Features
Patio And Porch Features: Uncovered Deck
Allows Horses: No
Fencing: Back Yard, Masonry, Wire, Wood
Roof: Composition

Pool Information
Has Private Pool: No
Has Spa: No

Property Information
ADU 2nd Unit: Yes
Property Condition: Updated/Remodeled
Property Type: Residential
Property Sub Type: Single Family Residence

Lot Information
Lot Size Square Feet: 19,075
Lot Size Acres: 0.4379
Lot Size Source: Assessor Auto-Fill
Lot Features: Auto Sprinkler F&R, Auto Sprinkler Front, Auto Sprinkler Rear, Garden, Grass Artificial, Landscape Back, Landscape Front, Landscape Misc, Low Maintenance, Manual Sprinkler Front
Other Structures: Outbuilding, Second Garage

Utilities

Utilities Information
Utilities: Cable Available, Generator, Internet Available, Natural Gas Available, Natural Gas Connected, Solar
Sewer: Public Sewer
Electric: 220 Volts, 220 Volts in Kitchen, 220 Volts in Laundry, Passive Solar

Location

HOA Information
Association YN: No

Community Information
Senior Community: No

Public facts

Beds: 5
Baths: 5.0
Sq. Ft.: 4,350
Stories: 2.0
Lot Size: 0.44 acres
Style: Single Family Residential
Year Built: 1979
Year Renovated: 1999
County: Sonoma County
APN: 181370019000

Home facts updated by county records on Aug 13, 2026

Around this home

Schools

Madrone Elementary School

Public K-6 • Assigned • 1.1mi

6/10

Rincon Valley Middle School

Public 7-8 • Assigned • 1.7mi

5/10

Maria Carrillo High School

Public 9-12 • Assigned • 2.2mi

9/10

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

3/10 Fire Factor

0.62% chance of being in a wildfire in next 30 years

3/10 Heat Factor

5 days above 92° expected this year, 10 days in 30 years

1/10 Wind Factor

Minimal risk of severe winds over next 30 years

10/10 Air Factor

21 unhealthy days expected this year, 21 days in 30 years

Provided by First Street

Historical weather

Santa Rosa, CA • 95404

Average low and high temperatures (°F)

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Sun exposure

In this area, properties receive around 11.1 hours in June and 4.9 hours in December, placing it above the U.S. average for solar exposure.

11.1 hrs

4.9 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$1.84M – $2.23M

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New listings for sale in 95404

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1313 St Helena Ave, Santa Rosa, CA 95404

NEW 25 HRS AGO

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Home values near 3660 Happy Valley Rd

Data from public records.

Address	Redfin Estimate
1690 Happy Valley Road, Santa Rosa, CA 5 Beds \| 3.5 Baths \| 2618 Sq. Ft.	$1,273,894
3546 Happy Valley Road, Santa Rosa, CA 3 Beds \| 2.5 Baths \| 2468 Sq. Ft.	$1,302,270

Address	Redfin Estimate
1684 Happy Valley Road, Santa Rosa, CA 5 Beds \| 3.5 Baths \| 3181 Sq. Ft.	$1,413,991
3540 Happy Valley Road, Santa Rosa, CA 5 Beds \| 3.5 Baths \| 3282 Sq. Ft.	$1,752,564

Address	Redfin Estimate
3530 Happy Valley Road, Santa Rosa, CA 5 Beds \| 2 Baths \| 3207 Sq. Ft.	$1,299,476
1685 Happy Valley Road, Santa Rosa, CA 4 Beds \| 2.5 Baths \| 2707 Sq. Ft.	$1,236,213

Property information provided by BAREIS when last listed in 2023. This data may not match . Learn more.

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GreatSchools Ratings provided by GreatSchools.org.

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About this home

Redfin Estimate

Earn from this home

Market trends in 95404, CA

Sale history for 3660 Happy Valley Rd

Tax history for 3660 Happy Valley Rd

Public record

Property details

Around this home

Schools

Lifestyle

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 95404

Home values near 3660 Happy Valley Rd

More real estate resources