18455 Half Moon Street, Sonoma, CA 95476, Sonoma, 95476 - 5 bed, 6 bath

18455 Half Moon Street
Sonoma, CA 95476
Property Price
SUMMARY
Analysis of 18455 Half Moon Street, Sonoma, CA 95476 is currently available with a list price of $8,200,000. The property maintains a Good Condition Rating (78/100), reflecting solid structural condition with well-maintained systems. The property presents an attractive opportunity for buyers seeking a move-in ready home. Located in a high-demand neighborhood within the Sonoma Unified School District, this asset is categorized as a low-risk, high-reward acquisition suitable for both Buy-and-Hold Investors and Owner-Occupants willing to undertake light renovation work.
Condition Analysis
OVERALL CONDITION SCORE
Property is move-in ready.
Built in 2005, this property falls within the 10 to 20-year age range for a 'good' condition rating. The home features high-end luxury finishes including a gourmet kitchen with a live-edge walnut island and premium appliances, as well as bespoke elements like an in-ground wine cellar. While the property is move-in ready and appears exceptionally well-maintained, the 20-year-old infrastructure and interior styles are reaching a point where modern updates may be desired by luxury buyers.
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 = 272250, living area = 5736.
- Resort-Style Outdoor Oasis
The property features an extraordinary landscape including a pond with a lighted fountain, floating islands, and lush gardens with fruit and citrus trees, offering an unparalleled outdoor entertaining experience.
- Unique Guest Accommodations
A separate guest house situated above a four-car garage provides a private, 'treehouse' feel with a wraparound balcony, ideal for multi-generational living or high-end hosting.
CONSRISKS & DEFICIENCIES
- Substantial Maintenance Demands
The 6.25-acre lot, featuring intricate gardens, a pond, and multiple structures, requires significant and costly ongoing upkeep to preserve its pristine condition.
- Aging Infrastructure Potential
Built in 2005, some of the home's mechanical systems and interior finishes may soon require modernization or updates to meet the expectations of today's ultra-luxury buyers.
About 18455 Half Moon Street
The minute you arrive at this property you're immediately immersed in the peaceful, natural surroundings. The main house boasts spacious bedrooms with ensuite bathrooms, a tranquil primary suite, and an open living area with a four way fireplace. The kitchen features an island with a live edge walnut top, premium appliances and a walk-in pantry. A separate guest housesits above the four car garage and has a treehouse feel as you take in the gorgeous surroundings from the wraparound balcony. A rare find is the in-ground wine cellar. This space can hold an impressive collection of wine and features native rock from around the property. The outdoor entertaining areas are spectacular with an expansive stone patio overlooking the pond complete with a lighted fountain and floating islands. The gardens and landscaping are truly breathtaking with an incredible variety of plants, flowers, fruit and citrus trees and more.18455 Half Moon Street holds a sense of magic that cannot be found elsewhere.
Property Details
Public Facts
- Property Type
- Single Family Residence
- Year Built
- 2005
- Lot Size
- 272,250 Sq. Ft.
Interior
- Total Bedrooms
- 5
- Total Bathrooms
- 6 (6 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 | Neighborhood Ranking (50 Listings) |
|---|---|---|---|
| Beds | 5.0 | 3.0 | 94% |
| Baths | 6.0 | 2.0 | 96% |
| Square foot | 5,736 | 1,667 | 97% |
| Lot Size | 272,250 | 7,635.5 | 95% |
| Price | $8.20M | $1.00M | 98% |
| Price per sq ft | $1.4K | $610 | 96% |
| Built year | 2005 | 1977 | 90% |
| HOA | $0 | $0 | 50% |
| Days on market | 164 | 188 | 37% |
Pricing History
Listed for Sale
Sep 24, 2025
$8,200,000
Initial Listing
Sold
Apr 29, 2004
$2,650,000
Public Record






































