55 William St, Cotati, CA 94931
OFF MARKET

$643,900

Trulia Estimate
  • 2 Beds
  • 1 Bath
  • 1,159 sqft

55 William St, Cotati, CA 94931

Est. Refi. Payment $4,159/mo*
Refinance Your Home
Currently Off Market - Sold Aug 20, 1999 for $187,000

Home Value

Trulia Estimate
$644K
Since last month
Decreased$26K (-3.8%)
Since last year
Decreased$2K (-0.3%)
Since last sale
Increased$456K (+243.7%)
Learn more about this home's value by checking out its Trulia Estimate, the value of nearby homes, and how much similar homes have sold for.

Trulia Estimate

The of this home's value increased by +45% in the last 10 years
MonthEstimated value
2026
October 2026$643K
September 2026$668K
August 2026$680K
July 2026$663K
June 2026$668K
May 2026$665K
April 2026$651K
March 2026$643K
February 2026$637K
January 2026$620K
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016

Comparable sales

These are recently sold homes that have a similar location or other similar features to this home, like bedrooms, bathrooms, and square footage. Get a sense of the expected prices in the area by viewing these homes.
Address
Distance
Property Type
Sold Price
Sold Date
Bed
Bath
Sqft
475 W Sierra Ave, Cotati, CA
0.42
Single-Family Home
$325,000
10/09/26
2
1
1,105
359 E School St, Cotati, CA
0.21
Single-Family Home
$650,000
05/05/26
3
2
1,308
16 Ahlstrom Drive, Cotati, CA
0.27
Single-Family Home
$580,000
09/22/26
2
2
1,083
7615 Bobbie Way, Rohnert Park, CA
0.56
Single-Family Home
$162,500
12/16/25
4
2
1,410
286 Bruce Avenue, Rohnert Park, CA
0.29
Single-Family Home
$700,000
04/30/26
4
2
1,300
7449 Adrian Drive, Rohnert Park, CA
0.52
Single-Family Home
$660,000
12/08/25
3
2
1,200
8729 Gravenstein Way, Cotati, CA
0.34
Single-Family Home
$640,000
07/31/26
3
2
1,068
102 Pinewood Court, Cotati, CA
0.35
Single-Family Home
$600,000
10/07/26
3
2
1,068
7534 Adrian Drive, Rohnert Park, CA
0.51
Single-Family Home
$530,000
10/13/26
3
2
1,264
7517 Bobbie Way, Rohnert Park, CA
0.53
Single-Family Home
$550,000
02/10/26
3
2
1,188

Nearby home prices

Get a sense of expected prices in the area by checking the value of nearby homes.
Address
Distance
Price
Bed
Bath
Sqft
Status
71 William St, Cotati, CA 94931
0.01
$594,200
2
1
864
Off Market
79R William St, Cotati, CA 94931
0.02
-
-
-
-
Off Market
79 W Cotati Ave, Cotati, CA 94931
0.03
$829,300
2
2
2,148
Off Market
58 William St, Cotati, CA 94931
0.04
$499,800
3
1
750
Off Market
50 William St, Cotati, CA 94931
0.05
$622,400
3
1
974
Off Market
79 William St #F, Cotati, CA 94931
0.05
$443,800
2
2
1,240
Off Market
79 William St #E, Cotati, CA 94931
0.05
$414,800
2
2
1,250
Off Market
79 William Street #D, Cotati, CA 94931
0.05
$450,000
2
1.5
1,250
Recently Sold
79 William St #C, Cotati, CA 94931
0.05
$409,600
2
2
1,250
Off Market
79 William Street #B, Cotati, CA 94931
0.05
$460,000
2
1.5
1,250
Recently Sold
79 William St #A, Cotati, CA 94931
0.05
$438,900
2
1.5
1,250
Off Market
79 William St #G, Cotati, CA 94931
0.05
$402,400
2
1.5
1,250
Off Market
79 William St #H, Cotati, CA 94931
0.05
$392,500
2
2
1,250
Off Market
79 William St #I, Cotati, CA 94931
0.05
$423,100
2
2
1,250
Off Market
79 William St #J, Cotati, CA 94931
0.05
$457,200
2
2
1,250
Off Market
79 William St #K, Cotati, CA 94931
0.05
$435,500
2
1.5
1,250
Off Market
79 William Street #L, Cotati, CA 94931
0.05
$407,300
2
1.5
1,250
Off Market
79 William St #M, Cotati, CA 94931
0.05
$437,300
2
1.5
1,250
Off Market
79 William St #N, Cotati, CA 94931
0.05
$427,600
2
2
1,250
Off Market
79 William St #O, Cotati, CA 94931
0.05
$440,900
2
2
1,250
Off Market

Local Information

  • Map ViewExplore the area around 55 William St.
  • Schools1 Elementary School1 Middle School1 High School
  • Shop & Eat
-- mins to
Commute Destination

Home Highlights

Single-Family Home
Built in 1953
1,159 sqft
$556/sqft

About this House

This single-family home is located at 55 William St, Cotati, CA. 55 William St is in Cotati, CA and in ZIP code 94931. This property has 2 bedrooms, 1 bathroom and approximately 1,159 sqft of floor space. This property has a lot size of 9600 sqft and was built in 1953.
55 William St, Cotati, CA 94931 is a 2 bedroom, 1 bathroom, 1,159 sqft single-family home built in 1953. It last sold for $187,000 on Aug 20, 1999. This property is not currently displayed as for sale or rent on Trulia. The Trulia Estimate is $643,900, with a rent estimate of $2,526/month.

Home Details for 55 William St

Interior Features

Levels, Entrance, & Accessibility
Stories: 1
Interior Details
Number of Rooms: 5

Property Information

Year Built
Year Built: 1953Year Updated: 1953
Property Type / Style
Property Type: Single Family HomeArchitecture: Other

Community

Units in Building: 1

Lot Information

Lot Area: 9600 sqft

Price and Tax history

DateEventPrice
Aug 20, 1999
Source: N/A
Sold
$187,000
Aug 15, 1995
Source: N/A
Sold
$120,500

Market trends in Cotati

Last updated September 2026
Buyer'sMarketSeller'sMarket
Avg. sale price
—
Sale-to-List Price
—
Price per sq ft
—
Available listings
27
1MoM
Sourced by Trulia Market Trends

Around this home

What Locals Say about Cotati

This October

Trick-or-Treat Score

Built from what locals say about this neighborhood.
  • 86% say there are sidewalks
  • 72% say there's holiday spirit
  • 63% say neighbors are friendly
Trulia Trick or TreatStart Ghost Hunt
At least 95 Trulia users voted on each feature.

  • 91 % Say it's dog friendly

  • 86 % Say there are sidewalks

  • 79 % Say yards are well-kept

  • 77 % Say it's walkable to restaurants

  • 77 % Say it's walkable to grocery stores

  • 75 % Say people would walk alone at night

  • 75 % Say streets are well-lit

  • 72 % Say there's holiday spirit

  • 69 % Say car is needed

  • 68 % Say parking is easy

  • 67 % Say kids play outside

  • 63 % Say neighbors are friendly

  • 55 % Say they plan to stay for at least 5 years

  • 55 % Say it's quiet

  • 44 % Say there's wildlife

  • 36 % Say there are community events

Sourced by Trulia users. Learn more about our methodology.
  • Kenny ODonnell
    "People take their dogs on walks all the time! There are occasional flocks of turkeys which dogs get crazy over"
    0
    Flag
  • Giselle P.
    " Dry common to see dog owners and dogs being walked. People generally do a good job picking up after their dogs."
    1
    Flag
  • Paul.warner
    "dog friendly for sure, lots of places to walk them and some parks that are dog friendly too. more dogs than kids I think"
    1
    Flag
  • Paul.warner
    "walkable access to town, restaurants, bar, grocery store, parks but easy access to freeway too. well maintained houses overall"
    1
    Flag
  • Giselle P.
    "Not bad; about 25 minutes on back roads. Mornings are busy on main street heading out of town, but if you mind the time, doable."
    0
    Flag
  • Mariahdinene
    "Great i enjoy living here. It’s getting a little run down and needs some love but we all do when we’re old! It feels safe. "
    0
    Flag
  • Ccaldewey
    "Great little town. Terrific location, walking distance to Plaza Park, restaurants, pubs, and shopping. Friendly and safe. "
    0
    Flag
  • Ccaldewey
    "Easy access to north and south HWY 101. Back roads to Petaluma can be faster during rush hour. Bus system between counties and Golden Gate transit to SF is reliable. Smart Train station close and free"
    0
    Flag
  • Dominic M.
    "My commute is always different. Work on homes. The on ramp to the freeway is very close. It will be nice once the freeway has 3 lanes all the way. "
    0
    Flag
  • Littlemizzsunshine717
    "I grew up in cotati. it was a quiet place with little negative activity. people are nice. houses are nice. nice view from home. I like it. "
    0
    Flag
  • Kevin
    "I live in Hunters Ridge (Lasker Ln, Clothier Ln, Honor Pl, Dorfman Dr. I really thrilled to be here. I think this development is second to the really high end places up on landfill.."
    0
    Flag
  • Bravoseven
    "For the most part (unless you live in West Cotati) everything is very walkable.. actually even if you live in West Cotati there is a tunnel under the freeway.. So walk everywhere and buses too. Great nite life yet quiet and small townish- except at rush hour the main roads are packed! "
    0
    Flag
  • S r.
    "Sonoma State is a big part of the economy/community here so there's several bars and a handful of fast food restaurants. the city-Cotati- is destitute financially so be aware of getting parking tickets for ridiculous minor infractions even on a quiet residential street. There are very strict dog/leash laws enforced and you will get ticketed for that too if not careful. Dogs are not even allowed on a leash in the park downtown at farmers market. "
    0
    Flag

LGBTQ Local Legal Protections

Frequently asked questions about 55 William St

  • What is 55 William St estimated to be worth?
    Trulia's estimated value for 55 William St in Cotati, CA is $643,900.
  • What is the price history for 55 William St?
    55 William St in Cotati, CA last sold for $187,000 in August 1999.
  • Is Cotati a buyer's or seller's market?
    Cotati is currently a seller's market, based on recent for-sale activity.
  • What do residents say about Cotati?
    Residents describe Cotati, CA as dog-friendly, pedestrian-friendly, and well-kept. See recently sold homes in Cotati, CA.
  • How big is the lot at 55 William St?
    The lot at 55 William St in Cotati, CA is about 0.22 acres (9,600 sq ft).

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