From the moment you step through the front door, sweeping hill views greet you, immediately setting the tone for this extraordinary residence. Formerly a highly successful Airbnb, this property seamlessly blends the feel of an upscale Wine Country retreat with the comfort, space, and warmth of a dream everyday home. The Hidden Value: Living Beside 5,000 Acres of Nature While the home itself is delightful, its location delivers a lifestyle: it sits across the street from the Spring Lake Regional Park and Howarth Park trail entrance, with seamless access to the vast trail network of Trione-Annadel State Park; your front doorstep is the gateway to thousands of acres of protected natural beauty. Enjoy morning paddleboarding on the lake, afternoon picnics, or miles of world-class mountain biking and hiking trails, all just steps from your front door. A Chef's Dream & The Ultimate Culinary Hub Designed for effortless entertaining, the heart of the home is a chef's kitchen built for gathering. It features a full 6-burner Thermador gas range with hood, double ovens, two dishwashers, a wine refrigerator, trash compactor, granite counters, a large pantry closet, and a prep area with a separate sink. The massive center island with seating frames picturesque views of the rolling hills. Adjacent is a light-filled family room with vaulted ceilings and backyard access (pre-plumbed behind the sheetrock with gas and electric for an 8-foot linear fireplace). Resort-Style Outdoor Living & Thoughtful Layout. Set on a lush .33-acre parcel, the grounds feature multiple inviting seating areas, a private hot tub, and a brand-new Timberteck deck off the kitchen and living room, perfect for taking in the stunning vistas. Beautiful hardwood flooring spans the main areas, including an open living/dining combo anchored by a cozy gas fireplace. The floor plan offers maximum privacy: a spacious primary suite occupies its own wing, complete with a balcony, seating area, large soaking tub, double sinks, and walk-in closet. Across the home, three additional guest bedrooms share a dedicated section with a full bath and powder room. A rare blend of luxury, views, and parkside access!
Single-familyProperty Type
1993Year Built
0.33 acresLot Size
$512Price/Sq.Ft.
2 garage spacesParking
Listed by Cindy Tonascia•DRE #01186064• Coldwell Banker Realty
•707-799-6096 (agent)
•bctonascia@comcast.net (agent)
Bought with Lauren Thompson•DRE #01425942• Corcoran Icon Properties
Est. $4,815 per month, based on comparable rentals
Sale and tax history for 4615 Sullivan Way
Sale History
Tax History
Date
Event
Price
BAREIS #326066178
Oct 8, 2026
Sold
$1,400,000
$512/sq ft
Oct 3, 2026
Pending
—
Sep 21, 2026
Contingent
—
Sep 20, 2026
Listed
$1,349,000
$493/sq ft
BAREIS #321076989
Sep 27, 2021
Sold
$1,265,000
$463/sq ft
Sep 16, 2021
Pending
—
Aug 20, 2021
Contingent
—
Aug 16, 2021
Listed
$1,198,000
$438/sq ft
Enjoy seclusion, privacy & a feeling of being suspended in the view! This 4BD/2.5BA stately home on Sullivan Way is in a coveted location above Lake Ralphine/Howarth Park on a 1/3 acre level lot with ample space & light. Main level built for entertaining, incl sunken family room off a spacious, grand kitchen with backyard access & formal dining/living room. Three bedrooms are on the main level. Sumptuous master suite is located on the upper level. Impressive walk in closet & master bathroom. New roof in 2019. Room for extra cars or possible RV/Boat. A large deck and courtyard extend the living space for outdoor dining & entertaining. House is equipped with Russound Sound system, bluetooth capability, speakers in all main parts of house & on both patios. A flat grassy area on the side yard is ideal for recreation (play structure) or a future pool. Minutes from restaurants, shopping, schools & wine country attractions along Hwy 12. Currently a very successful vacation rental.
BAREIS #22031297
Feb 11, 2021
Contingent
—
Public Records
May 16, 2002
Sold
$854,000
$312/sq ft
Public Records
May 9, 1997
Sold
$430,000
$157/sq ft
Public Records
Oct 12, 1992
Sold
$410,000
$150/sq ft
Public Records
Nov 20, 1991
Sold
$230,000
$84/sq ft
Public Records
Dec 30, 1988
Sold
$175,000
$64/sq ft
Year
Property tax
Land + Additions
Assessment*
2025
$15,682 (+1.5%)
$460,033 + $909,242
$1,369,275
2024
$15,457 (+3.9%)
$451,013 + $891,414
$1,342,427
2023
$14,882 (+4.3%)
$442,170 + $873,936
$1,316,106
2022
$14,271 (+36.6%)
$433,500 + $856,800
$1,290,300
2021
$10,447 (−0.6%)
$425,000 + $840,000
$1,265,000
2020
$10,516 (+7.2%)
$238,000 + $684,000
$922,000
2019
$9,810 (−5.8%)
$238,000 + $684,000
$922,000
2018
$10,417 (+1.9%)
$219,000 + $631,000
$850,000
2017
$10,223 (+25.1%)
$225,000 + $648,000
$873,000
2015
$8,173 (+1.8%)
$191,000 + $552,000
$743,000
2014
$8,032 (+36.6%)
$180,000 + $519,000
$699,000
2013
$5,879 (−0.2%)
$180,000 + $519,000
$699,000
2012
$5,893 (−7.6%)
$134,000 + $386,000
$520,000
2011
$6,376 (−27.9%)
$134,000 + $386,000
$520,000
2010
$8,839 (−3.3%)
$145,000 + $419,000
$564,000
2009
$9,143 (−14.0%)
$206,000 + $594,000
$800,000
2007
$10,633
$247,437 + $713,073
$960,510
Public record
Public record
Zoning
Permits
Beds
4
Baths
2.5
Stories
2
Lot width
—
Lot depth
—
Lot size
14,401
Year renovated
2026
Sq. Ft.
2,734
Year built
1993
Style
Single Family Residential
County
Sonoma County
APN
031160041000
Parking Spaces
4
Basement
No
Accessible
No
HOA Dues
—
Garage
Yes
Features
Views
Last updated by owner on Jul 25, 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
Dec 20, 2017 • Final
Residential addition-alteration
Tear off and reroof a residential building with composition shingles.
Roofing
Jun 28, 2015 • Final
Residential addition-alteration
Perform a bathroom remodel.
Bathroom
Remodel
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
Parking
Parking & Garage Information
Parking Total: 4
Parking Features: Attached, Garage Door Opener, Interior Access, Side-by-Side