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18900 Armstrong Woods Road, Guerneville, CA, 95446

1beds
1baths
768sqft
$1,495,000
$1,947price/sqft
$9,436/moest. monthly cost
$377,440/yrincome needed

About This Home

A Private Redwood Botanical Estate Set beyond a gated approach at the end of a secluded road, this remarkable offering combines a pavilion guest residence, a globally sourced conifer collection, extensive forest trails, and a premier view estate building opportunity within a serene redwood landscape. The property unfolds within the Crombie Arboretum, a privately established and curated collection of rare, wild-origin conifers sourced from around the world. Developed over more than two decades and thoughtfully supported through its early years, the collection now stands as a mature and thriving botanical environment representing species from every continent where conifers naturally occur. A charming glass-walled pavilion guest residence is positioned within the landscape, offering an immediate connection to nature and a peaceful retreat immersed in forest surroundings. Extensive trails, maintained over decades, wind throughout the property beneath towering redwoods and mixed forest, inviting exploration and quiet reflection. An established irrigation system initially supported the curated plantings and ongoing stewardship of the land. In addition to the guest residence, the property features a premier view build site, offering the opportunity to design and create a legacy estate within this extraordinary natural setting. Access is provided via a private road through a protected forest corridor. Located just minutes from Guerneville and the Russian River, yet offering a profound sense of privacy and stillness, this is a rare offering where botanical significance, seclusion, and long-term vision come together. Shown by appointment ONLY.

Getting Around

0
WalkingCar-Dependent
0
TransitVery Limited Transit
0
BikeNot Bike Friendly

Schools

4/10
8/10
Analy High SchoolGrades 9-1213.5 mi

Construction

Condition

  • Year built: 2003

Materials

  • Foundation: Slab
  • Roof: Cement,Tile
  • Construction materials: Wood,Other

Type & Style

  • Home type: SingleFamily
  • Architectural style: Chalet
  • Property subType: Single Family Residence

Interior

Appliances

  • Appliances included: Free-Standing Gas Oven,Free-Standing Refrigerator,Gas Water Heater,Microwave,Washer/Dryer Stacked

Basement

  • Basement: None

Bedrooms & Bathrooms

  • Bedrooms: 1
  • Bathrooms: 1
  • Full bathrooms: 1

Features

  • Flooring: Tile

Heating & Cooling

  • Heating features: Radiant
  • Cooling features: None

Interior Area

  • Total structure area: 768
  • Total interior livable area: 768 sqft

Kitchen

  • Level: Main

Property

Details

  • Parcel number: 069030029000
  • Special condition: Standard

Features

  • Levels: One
  • Stories: 1
  • Has view: Yes
  • View description: Forest,Hills,Trees/Woods

Lot

  • Lot size: 120 Acres
  • Features: Dead End,Other

Parking

  • Total spaces: 6
  • Parking features: No Garage,Uncovered Parking Spaces 2+,Gravel
  • Has uncovered spaces: Yes
  • Uncovered spaces: 6

Climate Risk is Financial Risk

Every home has a financial story beyond the listing price. Below, you’ll see the climate risks that could affect this property — and in Bills & Affordability, how those risks may influence repairs, insurance, utilities, and long-term value.

Biggest Threats for This Home

  • Inland Flooding
    Inland FloodingVery High
  • Earthquake
    EarthquakeModerate
  • Landslide
    LandslideModerate
  • Wildfire
    WildfireModerate

How This Home’s Risks Compare

Inland Flooding
Earthquake
Landslide
Wildfire

FEMA Declared Disasters in Sonoma County and California

Earthquake
Flood
Mud Landslide
Severe Ice Storm
Severe Storm
Snowstorm
Straight Line Winds
Tropical Storm
Winter Storm

Understanding the Costs

Financial advisors generally recommend spending no more than 30% of your gross household income on housing costs. In practice, many households stretch to 35% or beyond — especially in high-cost markets.

Estimated Costs Today

MonthlyAnnual
Mortgage $7,559$90,708
Home Insurance *$511$6,132
Property Taxes $968$11,616
Electricity $398$4,786
Total$9,436$113,232
*Does not include cost of any FAIR Plan premiums

Income You'd Need if You Spent...

35% on housing$323,520/yr
40% on housing$283,080/yr
45% on housing$251,626/yr

California FAIR Plan Programs

California FAIR Plan Association

Covered
WildfireWildfire
Visit Website →
Current Policies
Residential: 417,310Commercial: 13,990
Total Premiums$1.42B
Total Exposure$429.84B

How Costs Could Change Over Time

Climate risk is quickly impacting all of the major home ownership costs. Adjust the growth rates and percentage of income spent on housing below to see how your housing costs could change over the next 10 years — and what income you'd need to keep up.

Insurance Growth Rate5-year average: 10.2%
10.2%
0%30.0%
Electricity Growth Rate10-year average: 4.3%
4.3%
0%15.0%
Property Taxes Growth Rate2-year average: -1.0%
-1.0%
0%15.0%
Income Spent on Housing
30%
30%45%

Comparing Against the Market

Price Per Sq Ft

$1,947This listing

vs Other Active Listings

Avg $/sqft

ZIP 95446$332
Sonoma County$598

vs Homes Sold Last Month

Median $/sqft

ZIP 95446$504
Sonoma County$504

Current Market Trends

Median Price Per Square Foot

The median price per square foot of homes sold in this area each month. Compare this to this listing's price per square foot to gauge whether the home is priced in line with recent sales.

Historicals for This Listing

Zestimate History ($/sqft)

Price History

DateEventPrice
2026-04-02Listed for sale$1,495,000
2015-03-30Listing removed$1,250,000
2015-03-29Listed for sale$1,250,000
2015-03-06Sold$1,250,000
2015-03-05Listed for sale$1,500,000
2014-10-04Listing removed$1,500,000
2014-05-28Price change$1,500,000
2014-01-07Listed for sale$1,700,000
2001-05-15Sold$495,000

For Sale by Agent

AgentTodd Sheppard
BrokerageSotheby's International Realty

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