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  • Bedroom
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645 William Cunningham Ave, Sonoma, CA 95476

$5,195,000
•
  • 5

    bed

  • 6

    bath

  • 4,818

    Sqft ($1,078/Sqft)

House for sale 29 days
$455K price drop

About 645 William Cunningham Ave

Property type House
Neighborhood
Year built 1998
HOA fee $0/month
Lot size 0.46 Acre
Movoto estimate
Parking 3 garage spaces
Property description
This 4-bedroom, 4-bath main residence pairs period character with modern comfort. Craftsman details, timeless proportions, and a warm, livable floor plan carry throughout the approximately 4,818 sq ft main residence. The grounds are just as special. Mature landscaping surrounds the in-ground pool, creating a private setting for afternoons outdoors, entertaining, and relaxed Sonoma living. The 3-car garage includes a convenient shower room, ideal for pool days, gardening, or a quick post-workout rinse. Above the garage, an approximately 825 sq ft carriage house offers a simple, private escape for guests, a home office, or studio. Just five blocks from Sonoma Plaza, the property is close to boutiques, tasting rooms, Michelin-starred and acclaimed restaurants, and the heart of downtown Sonoma. With approximately 4,018 sq ft in the main house plus an additional 825 sq ft carriage house and a total of 6 full bathrooms, this is a rare opportunity to own a remarkable piece of Sonoma's architectural heritage.
Listed by
Listing Agent - Mary A Ryan
Listing Office - Engel & Volkers Sonoma
Source: BAREIS mls logo
MLS#326082579 • last updated 2 weeks ago
Movoto checked BAREIS for data 6 minutes ago
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Overview
Cooling/AC Central
Heating Central, Fireplace(s)
Levels/Style 2, Two
SqFt 4818
SubType Custom, Single Family Residence
2nd Unit Type ADU Detached
Type Residential
Year Built 1998
MLS # 326082579
Status Active
On Market Date 2026-09-29
Lot Size (Acres) 0.4593
Lot Size (SqFt) 20007
Interior
# Full Baths 6
2nd Unit: # Full Baths 1
Total # of Bathrooms 6
Total # of Bedrooms 5
2nd Unit: # Bedrooms 1
Basement None
Laundry Inside Room
Fireplace Desc Gas Log, Gas Starter, Stone
Exterior
# Garage Spaces 3
# Parking Spaces 3
Parking 24'+ Deep Garage, Detached
Lot Desc See Remarks
Amenities / Utilities
Utilities Public
Sewer/ Septic Public Sewer
Water Source Public
Pool Yes, Built-In, Solar Heat
Location
Area Sonoma
County Sonoma
APN 127-700-026-000
Multifamily Details
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Source: GreatSchools.org © 2026. All rights reserved.

Around B1300

Explore everything this neighborhood has to offer.
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Walk
62/100
Family
37/100
Dining
69/100
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  • Real Estate
  • CA
  • Sonoma County
  • Sonoma
  • 95476
  • 645 William Cunningham Ave

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