NOT LISTED FOR SALE

79 William St Unit S Cotati, CA 94931

Cotati Area

Estimated Value: $442,271

2 Beds
1.5 Baths
1,250 Sq Ft
614 Sq Ft Lot

Sale Details

Date Sold: April 23, 2026

Last sale price $440,000 $352 Per Sq Ft

Est. 1% increase in value since last sale

Current estimated payment $3,170 / mo

35 Days on Market

Highlights

  • Solar Heated In Ground Pool
  • Wood Burning Stove
  • Detached Garage
  • Deck
  • Bamboo Flooring
  • Bathtub with Shower

About This Home

As of April 2026

Tucked behind the Cotati Downtown Plaza in a serene location, this charming 2 bedroom, 1.5 bath condo offers both access to downtown and peaceful natural surroundings. Framed by mature oak and redwood trees, the home backs to open space and features a private fenced deck ideal for relaxing or entertaining. Inside, warm bamboo flooring and custom wood details create a welcoming atmosphere. The living room centers around a beautiful custom fireplace mantel and hearth. Upstairs features two spacious bedrooms with large mirrored closets. Bamboo flooring and a built-in window desk with shelving provides an inspiring workspace overlooking open space. The remodeled bathroom includes granite countertops and a tile shower. Additional highlights includes exterior storage and two assigned parking spaces nearby. One parking spot is covered and the other is uncovered. Located just one block from Cotati Downtown Plaza, enjoy easy access to summer concerts, the farmers market, locally owned coffee shops, restaurants, and nightlife. Convenient to Highway 101, SMART Train, Oliver's Market, and Sonoma State University.

Last Agent to Sell the Property

Annaliese Quisisem

Ajility Real Estate License #01359625 Listed on: 03/12/2026

Last Buyer's Agent

Susan Campbell

Coldwell Banker Realty License #DRE #01457500

Coldwell Banker Realty
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Property Details

Home Type

  • Condominium

Year Built

  • Built in 1980 | Remodeled

Lot Details

  • Wood Fence

HOA Fees

  • $565 Monthly HOA Fees

Home Design

  • Composition Roof

Interior Spaces

  • 1,250 Sq Ft Home
  • 2-Story Property
  • Ceiling Fan
  • Wood Burning Stove
  • Wood Burning Fireplace
  • Living Room with Fireplace

Kitchen

  • Free-Standing Electric Range
  • Range Hood
  • Dishwasher
  • Laminate Countertops
  • Disposal

Flooring

  • Bamboo
  • Carpet

Bedrooms and Bathrooms

  • 2 Bedrooms
  • Bathtub with Shower

Laundry

  • Laundry closet
  • Dryer
  • Washer

Home Security

Parking

  • Detached Garage
  • 1 Carport Space
  • No Garage
  • Inside Entrance
  • Uncovered Parking
  • Assigned Parking

Outdoor Features

  • Solar Heated In Ground Pool
  • Deck
  • Outdoor Storage

Utilities

  • Baseboard Heating
  • 220 Volts in Kitchen
  • Electric Water Heater
  • Internet Available

Community Details

Overview

  • Association fees include common areas, insurance on structure, maintenance structure, ground maintenance, management, pool, recreation facility, roof, sewer, trash, water
  • William Condominium Owners Association, Phone Number (707) 687-2580

Recreation

  • Community Pool

Security

  • Carbon Monoxide Detectors
  • Fire and Smoke Detector

Property Details

Home Type

Condominium

Year Built

Built in 1980 | Remodeled

Lot Details

614 Sq Ft Lot

HOA Fees

$565 per month

Listing Details

  • Type: Residential
  • Lot Size Acres: 0.0141
  • Stories: 2
  • Levels: Two
  • Property Sub Type: Condominium
  • Co List Office Mls Id: 7B2594
  • Directions: W. Cotati Avenue to William Street
  • Living Area: 1250
  • Power Production Type: None
  • Special Features: None

Interior Features

  • Appliances: Dishwasher, Disposal, Electric Water Heater, Free-Standing Electric Range, Free-Standing Refrigerator, Range Hood, Insulated Water Heater
  • Basement: None
  • Flooring: Bamboo, Carpet
  • Fireplace Features: Living Room, Wood Burning, Wood Burning Stove
  • Full Bathrooms: 1
  • Total Bedrooms: 2
  • Fireplaces: 1
  • RoomBathroomFeatures: Granite, Tile, Tub w/Shower Over, Window
  • RoomDiningRoomFeatures: Space in Kitchen
  • RoomMasterBedroomFeatures: Closet
  • RoomKitchenFeatures: Laminate Counters, Pantry Cabinet

Exterior Features

  • Lot Features: See Remarks
  • Property Condition: Updated/Remodeled
  • Roof: Composition
  • Fencing: Fenced, Wood
  • OtherStructures: Storage
  • Patio And Porch Features: Uncovered Deck
  • Pool Features: Built-In, Community, Solar Heat

Garage/Parking

  • Parking Features: Assigned, Covered, Detached, Inside Entrance, No Garage, Uncovered Parking Space, See Remarks
  • Carport Spaces: 1

Utilities

  • Cooling: Ceiling Fan(s)
  • Electric: 220 Volts in Kitchen
  • Security Features: Carbon Monoxide Detector(s), Smoke Detector(s)
  • Sewer: Public Sewer
  • Utilities: Electricity Connected, Internet Available, Public
  • Water Source: Public
  • Heating: Baseboard, Electric, Fireplace(s)
  • Laundry Features: Dryer Included, Electric, Laundry Closet, Washer Included

Condo/Co-op/Association

  • Association Fee: 565
  • Association Fee Frequency: Monthly
  • Association Name: William Condominium Owners
  • Association Phone: 707-687-2580

Fee Information

  • Association Fee Includes: Common Areas, Insurance on Structure, Maintenance Structure, Maintenance Grounds, Management, Pool, Recreation Facility, Roof, Sewer, Trash, Water

Lot Info

  • Lot Size Sq Ft: 614
  • Land Lease: No

Building Info

  • Year Built: 1980

Multi Family

Ownership History

We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.

Date Name Owned For Owner Type

Purchase Details

Listed on
Mar 12, 2026
Closed on
Apr 8, 2026
Sold by
Bought by
Seller's Agent
Annaliese Quisisem
Ajility Real Estate
Buyer's Agent
Susan Campbell
Coldwell Banker Realty
List Price
$435,000
Sold Price
$440,000
Premium/Discount to List
$5,000
1.15%
Views
14
Current Estimated Value
$442,271

Home Financials for this Owner

Home Financials are based on the most recent Mortgage that was taken out on this home.
Estimated Appreciation
$2,271
Avg. Annual Appreciation
1.79%
Original Mortgage
$396,000
Outstanding Balance
$394,836
Interest Rate
6.11%
Mortgage Type
New Conventional
Estimated Equity
$47,435

Purchase Details

Closed on
Nov 15, 2011
Sold by
Bought by

Purchase Details

Closed on
Jun 28, 2011
Sold by
Bought by

Purchase Details

Closed on
Nov 8, 2010
Sold by
Bought by

Purchase Details

Closed on
Jul 17, 2007
Sold by
Bought by

Home Financials for this Owner

Home Financials are based on the most recent Mortgage that was taken out on this home.
Original Mortgage
$235,200
Interest Rate
6.51%
Mortgage Type
Purchase Money Mortgage

Purchase Details

Closed on
Mar 2, 2004
Sold by
Bought by

Purchase Details

Closed on
Feb 21, 2003
Sold by
Bought by

Purchase Details

Closed on
May 26, 1999
Sold by
Bought by

Home Financials for this Owner

Home Financials are based on the most recent Mortgage that was taken out on this home.
Original Mortgage
$96,375
Interest Rate
6.86%
Mortgage Type
Stand Alone First
Source: Public Records

Home Values in the Area

Source: Public Records

Average Home Value in this Area

Source: Public Records

Agents Specializing in Cotati, CA

  • Caroline Fuller Real Estate Agent - SOCO PROPERTY

    Caroline Fuller

    SOCO PROPERTY

    (707) 899-0766

    87 Total Sales

    2 in Cotati

    $499K - $637K Price Range

    Caroline Fuller
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  • Erick Hernandez Real Estate Agent - RE/MAX Marketplace

    Erick Hernandez

    RE/MAX Marketplace

    (707) 755-6922

    74 Total Sales

    4 in Cotati

    $303K - $506K Price Range

    Erick Hernandez
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  • Marni Cunha Real Estate Agent - Hedge Realty

    Marni Cunha

    Hedge Realty

    (707) 665-1571

    58 Total Sales

    2 in Cotati

    $1.4M - $2.8M Price Range

    Marni Cunha
     Section Image
  • Amy Ahlers Real Estate Agent - Livxplore Real Estate & Lifest

    Amy Ahlers

    Livxplore Real Estate & Lifest

    (707) 760-7764

    48 Total Sales

    4 in Cotati

    $430K - $975K Price Range

    Amy Ahlers
     Section Image
  • Heidi Faulkner Real Estate Agent - Artisan Sotheby's Int'l Realty

    Heidi Faulkner

    Artisan Sotheby's Int'l Realty

    (707) 899-0742

    46 Total Sales

    2 in Cotati

    $250K - $599K Price Range

    Heidi Faulkner
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  • Milli Cannata Real Estate Agent - Vanguard Properties

    Milli Cannata

    Vanguard Properties

    (707) 634-2349

    76 Total Sales

    1 in Cotati

    $1,359,000 Price

    Milli Cannata
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Purchase History

We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.

Date Buyer Sale Price Title Company
$440,000 Cornerstone Title
-- None Available
$114,500 Ticor Title Riverside
$159,933 Accommodation
$294,000 California Land Title Marin
-- --
-- Chicago Title Co
$128,500 First American Title
Source: Public Records

Mortgage History

We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.

Date Status Borrower Loan Amount
Open $396,000
Previous Owner $235,200
Previous Owner $96,375
Source: Public Records

Property History

We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.

Date Event Price List to Sale Price per Sq Ft
04/23/2026 04/23/26 Sold $440,000 +1.1% $352 / Sq Ft
04/16/2026 04/16/26 Pending -- -- --
03/12/2026 03/12/26 For Sale $435,000 -- $348 / Sq Ft
Source: Bay Area Real Estate Information Services (BAREIS)

Tax History

We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.

Year Tax Paid Tax Assessment Tax Assessment Total Assessment is a certain percentage of the fair market value that is determined by local assessors to be the total taxable value of land and additions on the property. Land Improvement
2025 $2,024 $143,803 $50,235 $93,568
2024 $1,973 $140,984 $49,250 $91,734
2023 $1,973 $138,221 $48,285 $89,936
2022 $1,920 $135,512 $47,339 $88,173
2021 $1,898 $132,856 $46,411 $86,445
2020 $1,910 $131,495 $45,936 $85,559
2019 $1,886 $128,918 $45,036 $83,882
2018 $1,595 $126,391 $44,153 $82,238
2017 $1,569 $123,914 $43,288 $80,626
2016 $1,499 $121,486 $42,440 $79,046
2015 $1,546 $119,662 $41,803 $77,859
2014 $1,536 $117,319 $40,985 $76,334
Source: Public Records

Agents Affiliated with this Home

  • Annaliese Quisisem Real Estate Agent - Ajility Real Estate

    Seller's Agent in 2026

    Annaliese Quisisem

    Ajility Real Estate

    (707) 480-9228

    56 Total Sales

    Annaliese Quisisem
    Section Image

  • S

    Buyer's Agent in 2026

    Susan Campbell

    Coldwell Banker Realty

    (707) 481-1906

    16 Total Sales

    Susan Campbell
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Map

Source: Bay Area Real Estate Information Services (BAREIS)

MLS Number: 326019195

Bay Area Real Estate Information Services (BAREIS)

APN: 144-560-018

California Sonoma County Cotati 94931

79 William St Unit S, Cotati, CA

Disclaimer: Certain information contained herein is derived from information provided by parties other than Homes.com. All information provided is deemed reliable, but is not guaranteed to be accurate and should be independently verified.

Bay Area Real Estate Information Services (BAREIS) Listing information deemed reliable but not guaranteed. Copyright 2026 Bay Area Real Estate Information Services, Inc. All Right Reserved.

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