855 Grapestone Lane, Sonoma, CA 95476, Sonoma, 95476 - 3 bed, 4 bath
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855 Grapestone Lane
Sonoma, CA 95476
ACTIVE
CONDITION: EXCELLENT
3Beds
4Baths
3,313Sq Ft
87,120Lot Size
Property Price
LIST PRICE$5,995,000
EST. MARKET VALUE
$6,093,892
SUMMARY
This Contemporary Wine Country Estate is a Strong Value Opportunity, listed at $5,995,000—positioned well below the $6,093,893 Fair Market Value by 1.6%. This valuation gap offers $98,893 in Instant Equity. Featuring a Mint Condition Rating, the property includes a detached guest house, resort-style pool and spa, and 1.5 acres of old-vine Zinfandel. With CALGreen certification and high-efficiency systems, this estate is an ideal acquisition for Luxury Homeowners or Wine Country Investors seeking a turnkey, sustainable retreat.
Estimated Market Value
$6,093,892
Based on Realkey algorithm analyzing recent comparable sales in Sonoma.
Comparable Sales Map
Comparables within 1 miles sold in recently
Map unavailable.
| Address | Sold Price | Beds | Baths | Sq Ft | $/Sqft | Distance |
|---|---|---|---|---|---|---|
★ 855 Grapestone Lane Subject 3 bd · 4 ba · 3,313 sqft · $1,839 | $5,995,000* List Price | 3 | 4 | 3,313 | $1,839 | - |
A 19696 7th Street E Sold 3 bd · 4 ba · 3,450 sqft · $1,739 · 0.7 mi | $6,000,000 | 3 | 4 | 3,450 | $1,739 | 0.7 mi |
B 1265 Castle Road Active 3 bd · 3 ba · 3,818 sqft · $1,801 · 0.5 mi | $6,875,000 List Price | 3 | 3 | 3,818 | $1,801 | 0.5 mi |
* Subject property listed price vs sold prices of comps.
Condition Analysis
See Full ReportOVERALL CONDITION SCORE
Excellent
TeardownExcellent
Property is new construction or fully renovated.
Built in 2018, this property is less than 10 years old and in mint condition. The interior features a modern open-concept kitchen with high-end appliances, contemporary bathrooms with floating vanities, and high-efficiency systems including radiant floor heating and solar power.
PROSSTRENGTHS & OPPORTUNITIES
- High Available Lot Utilization
The property has a large lot size, which is more than 4 times of its living area. lot size in square feet = 87120, living area = 3313.
- Authentic Vineyard Estate
The property boasts 1.5 acres of dry-farmed, old-vine Zinfandel grapes on a two-acre lot, providing a quintessential Wine Country lifestyle and potential agricultural utility.
- Modern Sustainable Construction
Built in 2018, this CALGreen certified home features contemporary architectural lines, solar power, radiant floor heating, and a private well, offering high-efficiency living.
CONSRISKS & DEFICIENCIES
- MLS Listing Discrepancy
Living area discrepancy between mls listing and other public or private record. mls listing living area = 3313, other record living area = 2707. Bedroom count discrepancy between mls listing and other public or private record. mls listing bedroom count = 3, other record bedroom count = 2.
- Limited Bedroom Capacity
Despite the nearly $6 million price point, the property only offers three bedrooms, which may limit its appeal to larger families or those requiring more dedicated guest space.
- Premium Price per Square Foot
At approximately $1,800 per square foot, the listing represents a significant market premium that may challenge buyers looking for more interior living volume for their investment.
About 855 Grapestone Lane
Set on two acres amid the vineyards of Sonoma Valley, 855 Grape Stone Lane is a contemporary Wine Country estate featuring a single-level main residence and detached guest house totaling 3,313 square feet, plus a resort-like pool and spa - all just minutes from the historic Sonoma Plaza. Clean architectural lines, a warm neutral palette and expansive indoor-outdoor living spaces create a relaxed, refined setting for both everyday living and entertaining. The open-concept great room brings together the living, dining and kitchen areas, while a luxurious primary suite and additional en suite bedroom offer privacy and comfort. The guest house provides flexible accommodations for visitors, a private office or creative studio. Outdoors, generous patios, mature olive trees and 1.5 acres of dry-farmed, old-vine Zinfandel frame the pool, Baja shelf and spa, creating an inviting setting for gathering and relaxation. Gated entry, radiant floor heating, solar, a private well, natural gas, a four-bedroom septic system and CALGreen certification complete this thoughtfully designed Sonoma retreat.
Property Details
Public Facts
- Property Type
- Single Family Residence
- Year Built
- 2018
- Lot Size
- 87,120 Sq. Ft.
Interior
- Total Bedrooms
- 3
- Total Bathrooms
- 4 (4 Full, 0 Half)
Exterior & Parking
No exterior & parking available.
Utilities & Misc
- HOA Fee
- $0 / Month
Neighborhood Insights
Sensitive Facilities
No sensitive facilities data found.
Neighborhood Comparison
| Feature | Subject | Average Home |
|---|---|---|
| Beds | 3.0 | 2.7 |
| Baths | 4.0 | 2.0 |
| Square foot | 3,313 | 1,545.964 |
| Lot Size | 87,120 | 7,343.59 |
| Price | $6.00M | $861.0K |
| Price per sq ft | $1.8K | $628 |
| Built year | 2018 | 1976 |
| HOA | $0 | $247 |
| Days on market | 19 | 56 |
Pricing History
Listed for Sale
Oct 5, 2026
$5,995,000
Initial Listing
Sold
May 16, 2025
$5,650,000
Public Record
Sold
Jan 28, 2020
$4,480,000
Public Record