Seller's Agent in 2018
Douglas Swanson
Healdsburg Sotheby's Int'l Rea
(707) 636-4440
63 Total Sales
6830 Gardner Ranch Rd Santa Rosa, CA 95404
Estimated Value: $2,785,000 - $4,480,317
4
Beds
3.5
Baths
4,013
Sq Ft
$927/Sq Ft
Est. Value
Highlights
- Additional Residence on Property
- Stables
- Panoramic View
- Strawberry Elementary School Rated A-
- Solar Power System
- Built-In Refrigerator
About This Home
As of February 2018This Bennett Valley Estate sits on 40+/-acres overlooking one of the most beautiful valleys Sonoma has to offer w/gentle land suitable for grapes &/or horses. You will love the gorgeous far reaching views. This 4,000+ sq ft estate home, addnl 968+/-sq ft guest house & 6+ car detached garage just completed a 2+ million-dollar remodel designed by renowned architect Norm Oliver w/too many amenities to list. No expense was spared here. Come & See!
Last Agent to Sell the Property
Healdsburg Sotheby's Int'l Rea License #01297381 Listed on: 12/09/2017
Last Buyer's Agent
Michelle Mozell
eXp Realty of California, Inc License #01879859
Home Details
Home Type
- Single Family
Year Built
- Built in 1994
Lot Details
- 40.63 Acre Lot
- Property is Fully Fenced
- Landscaped
- Private Lot
- Sprinkler System
- Garden
Parking
- 6 Car Detached Garage
- 16 Open Parking Spaces
- Gravel Driveway
Property Views
- Panoramic
- City Lights
- Vineyard
- Pasture
- Mountain
- Hills
- Valley
Home Design
- Concrete Foundation
- Frame Construction
- Ceiling Insulation
- Floor Insulation
- Tile Roof
- Stucco
Interior Spaces
- 4,013 Sq Ft Home
- 2-Story Property
- Wet Bar
- Beamed Ceilings
- Cathedral Ceiling
- Wood Burning Fireplace
- Fireplace With Gas Starter
- Formal Entry
- Great Room
- Family Room
- Living Room with Fireplace
- Living Room with Attached Deck
- Dining Room with Fireplace
- 3 Fireplaces
- Formal Dining Room
- Home Office
- Bonus Room
- Game Room
- Storage Room
Kitchen
- Breakfast Area or Nook
- Double Oven
- Range Hood
- Microwave
- Built-In Refrigerator
- Dishwasher
- Kitchen Island
- Concrete Kitchen Countertops
- Disposal
Flooring
- Wood
- Tile
Bedrooms and Bathrooms
- 4 Bedrooms
- Main Floor Bedroom
- Maid or Guest Quarters
- Tile Bathroom Countertop
- Primary Bathroom Bathtub Only
- Bathtub with Shower
- Separate Shower
Laundry
- Laundry in unit
- 220 Volts In Laundry
- Gas Dryer Hookup
Home Security
- Carbon Monoxide Detectors
- Fire and Smoke Detector
Eco-Friendly Details
- Grid-tied solar system exports excess electricity
- Solar Power System
Utilities
- Multiple cooling system units
- Multiple Heating Units
- Heating System Uses Propane
- Private Water Source
- Septic System
Additional Features
- Additional Residence on Property
- Stables
Listing and Financial Details
- Assessor Parcel Number 055-010-037-000
Ownership History
Date
Name
Owned For
Owner Type
Purchase Details
Listed on
Dec 9, 2017
Closed on
Feb 14, 2018
Sold by
Castagna Daniel C and Bragg Ruth Ann Margaret
Bought by
Tiffany Paul A and Tiffany Janet P
Seller's Agent
Douglas Swanson
Healdsburg Sotheby's Int'l Rea
Buyer's Agent
Michelle Mozell
eXp Realty of California, Inc
List Price
$4,000,000
Sold Price
$4,000,000
Current Estimated Value
Home Financials for this Owner
Home Financials are based on the most recent Mortgage that was taken out on this home.
Estimated Appreciation
-$279,228
Avg. Annual Appreciation
-0.90%
Original Mortgage
$2,000,000
Outstanding Balance
$1,704,743
Interest Rate
4.25%
Mortgage Type
Adjustable Rate Mortgage/ARM
Estimated Equity
$2,016,029
Purchase Details
Closed on
Feb 10, 2016
Sold by
Castagna Daniel C and Bragg Ruth
Bought by
Castagna Daniel C and Br Ruth
Purchase Details
Closed on
Jul 14, 2014
Sold by
Mcdermott Michael J and Mcdermott Stephanie A
Bought by
Castagna Daniel C and Bragg Ruth
Home Financials for this Owner
Home Financials are based on the most recent Mortgage that was taken out on this home.
Original Mortgage
$1,900,000
Interest Rate
2.87%
Mortgage Type
Adjustable Rate Mortgage/ARM
Purchase Details
Closed on
Jun 10, 2004
Sold by
Mcdermott Michael J and Mcdermott Stephanie A
Bought by
Mcdermott Michael J and Mcdermott Stephanie A
Home Financials for this Owner
Home Financials are based on the most recent Mortgage that was taken out on this home.
Original Mortgage
$1,340,500
Interest Rate
5.37%
Mortgage Type
Unknown
Purchase Details
Closed on
May 18, 2004
Sold by
Stephens Mark C and Stephens Mary Alyce
Bought by
Mcdermott Michael J and Mcdermott Stephanie A
Home Financials for this Owner
Home Financials are based on the most recent Mortgage that was taken out on this home.
Original Mortgage
$1,340,500
Interest Rate
5.37%
Mortgage Type
Unknown
Purchase Details
Closed on
May 7, 2004
Sold by
Stephens Mark C and Stephens Mary Alyce
Bought by
Morley Holdings Llc
Home Financials for this Owner
Home Financials are based on the most recent Mortgage that was taken out on this home.
Original Mortgage
$1,340,500
Interest Rate
5.37%
Mortgage Type
Unknown
Purchase Details
Closed on
Aug 21, 2001
Sold by
Stephens Mark C and Stephens Mary Alyce
Bought by
Stephens Mark C and Stephens Mary Alyce
Home Financials for this Owner
Home Financials are based on the most recent Mortgage that was taken out on this home.
Original Mortgage
$325,000
Interest Rate
7.21%
Purchase Details
Closed on
Aug 6, 1996
Sold by
Gardner Elizabeth J
Bought by
Gardner Robert W
Home Financials for this Owner
Home Financials are based on the most recent Mortgage that was taken out on this home.
Original Mortgage
$390,000
Interest Rate
8.18%
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Purchase History
| Date | Buyer | Sale Price | Title Company |
|---|---|---|---|
| Tiffany Paul A | $4,000,000 | Fidelity National Title Co | |
| Castagna Daniel C | -- | None Available | |
| Castagna Daniel C | $2,375,000 | Stewart Title Of Ca Inc | |
| Mcdermott Michael J | -- | -- | |
| Mcdermott Michael J | $1,915,000 | North Bay Title Co | |
| Morley Holdings Llc | $200,000 | First American Title Co | |
| Stephens Mark C | -- | First American Title Co | |
| Gardner Robert W | -- | Chicago Title Co | |
| Gardner Robert W | $300,000 | Chicago Title Co |
Source: Public Records
Mortgage History
| Date | Status | Borrower | Loan Amount |
|---|---|---|---|
| Open | Tiffany Paul A | $2,000,000 | |
| Previous Owner | Castagna Daniel C | $1,900,000 | |
| Previous Owner | Mcdermott Michael J | $1,340,500 | |
| Previous Owner | Stephens Mark C | $325,000 | |
| Previous Owner | Gardner Robert W | $390,000 |
Source: Public Records
Property History
| Date | Event | Price | List to Sale | Price per Sq Ft |
|---|---|---|---|---|
| 02/28/2018 02/28/18 | Sold | $4,000,000 | 0.0% | $997 / Sq Ft |
| 02/27/2018 02/27/18 | Pending | -- | -- | -- |
| 12/09/2017 12/09/17 | For Sale | $4,000,000 | -- | $997 / Sq Ft |
Source: Bay Area Real Estate Information Services (BAREIS)
Tax History
| Year | Tax Paid | Tax Assessment Tax Assessment Total Assessment is a certain percentage of the fair market value that is determined by local assessors to be the total taxable value of land and additions on the property. | Land | Improvement |
|---|---|---|---|---|
| 2025 | $12,228 | $1,059,551 | $325,854 | $733,697 |
| 2024 | $12,228 | $1,039,642 | $320,331 | $719,311 |
| 2023 | $12,228 | $1,019,888 | $314,681 | $705,207 |
| 2022 | $11,280 | $1,000,041 | $308,661 | $691,380 |
| 2021 | $11,065 | $980,571 | $302,747 | $677,824 |
| 2020 | $11,029 | $969,363 | $298,489 | $670,874 |
| 2019 | $11,163 | $950,813 | $293,093 | $657,720 |
| 2018 | $26,461 | $2,278,187 | $798,670 | $1,479,517 |
| 2017 | $36,724 | $2,078,626 | $783,119 | $1,295,507 |
| 2016 | $36,434 | $2,029,833 | $767,603 | $1,262,230 |
| 2015 | $22,762 | $1,976,191 | $756,191 | $1,220,000 |
| 2014 | $22,350 | $1,983,414 | $748,195 | $1,235,219 |
Source: Public Records
Agents Affiliated with this Home
-
Douglas Swanson
-
M
Buyer's Agent in 2018
Michelle Mozell
eXp Realty of California, Inc
Map
Source: Bay Area Real Estate Information Services (BAREIS)
MLS Number: 21727305
APN: 055-010-037
Disclaimer: Certain information contained herein is derived from information provided by parties other than Homes.com. All information provided is deemed reliable, but is not guaranteed to be accurate and should be independently verified.
Listing information deemed reliable but not guaranteed. Copyright 2026 Bay Area Real Estate Information Services, Inc. All Right Reserved.
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