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645 William Cunningham Avenue, Sonoma, CA 95476

Sonoma
Local realty services provided by:CENTURY 21 Masters
645 William Cunningham Avenue,Sonoma, CA 95476
$5,650,000
  • 5 Beds
  • 6 Baths
  • 4,818 sq. ft.
  • Single family
  • Active
Listed by: mary a ryan
Office: engel & volkers sonoma
MLS#:326082579
Source:CABAREIS

Price summary

  • Price:$5,650,000
  • Price per sq. ft.:$1,172.69

About this home

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...

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Home facts

  • Year built:1998
  • Listing ID #:326082579
  • Updated:October 02, 2026 at 02:48 PM

Rooms and interior

  • Bedrooms:5
  • Total bathrooms:6
  • Full bathrooms:6
  • Living area:4,818 sq. ft.

Heating and cooling

  • Cooling:Central
  • Heating:Central, Fireplace

Structure and exterior

  • Year built:1998
  • Building area:4,818 sq. ft.
  • Lot area:0.46 Acres
  • Levels:2 Story

Utilities

  • Water:Public
  • Sewer:Public Sewer

Finances and disclosures

  • Price:$5,650,000
  • Price per sq. ft.:$1,172.69

Features and amenities

  • Laundry features:Inside Room
  • Pool features:Built-In, Solar Heat

Parking

  • Total parking spaces:3
  • Parking description:24'+ Deep Garage, Detached
  • Garage spaces:3
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