Google satellite image for 18042 Irwin St SW, Rochester, WA 98579

Off market

$660,508

•

2.5 ba

•

2,046

sq ft

18042 Irwin St SW, Rochester, WA 98579

About this home

18042 Irwin St SW is a 2,046 square foot house on a 5.42 acre lot with 3 bedrooms and 2.5 bathrooms. Based on Redfin's Rochester data, we estimate the home's value is $660,508.

Single-familyProperty Type

1992Year Built

5.42 acresLot Size

$323Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$660,508

$12K since September

Recently sold homes
Estimate history

This home's estimate is 2.9% lower than the average sale price ($680K) of 6 comparable homes.

SOLD OCT 7, 2026
$845,000
A
3 beds3 baths2,103 sq ft
17910 Guava St SW, Rochester, WA 98579
Listing provided by nwmls
SOLD OCT 1, 2026
$538,000
B
3 beds2 baths1,892 sq ft
9519 185th Ave SW, Rochester, WA 98579
Listing provided by nwmls
SOLD JUL 15, 2026
$740,000
C
3 beds2 baths2,088 sq ft
9039 176th Ave SW, Rochester, WA 98579
Listing provided by nwmls
SOLD OCT 6, 2026
$705,000
D
3 beds2 baths2,244 sq ft
18442 Apricot St SW, Rochester, WA 98579
Listing provided by nwmls
SOLD JUN 30, 2026
$619,500
E
3 beds2 baths1,861 sq ft
19944 Carper Rd SW, Rochester, WA 98579
Listing provided by nwmls
SOLD JUL 10, 2026
$635,000
F
3 beds2.5 baths2,056 sq ft
11731 Littlerock Rd SW, Olympia, WA 98512
Listing provided by nwmls

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Earn from this home

Sell

$620,510

Est. take-home

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Rent

$2,860/mo

Redfin rental estimate

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Market trends in 98579, WA

Last updated September 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-list price

98.0%

1.1% MoM

Median sale price

$529K

$19K MoM

Avg. days on market

39d

19 days MoM

Recently sold homes

2 MoM

New listings for sale

NEW
$435,000
3 beds2 baths1,310 sq ft
5424 187th Ct SW, Rochester, WA 98579
Nancy Griego • RE/MAX Parkside Affiliates
$625,000
3 beds2 baths2,664 sq ft
20200 Grand Mound Way SW, Centralia, WA 98531
Jody Hill • BHGRE - Northwest Home Team
$619,000
3 beds2 baths1,558 sq ft
16640 Vircon Dr SW, Rochester, WA 98579
Sterling Stock • Olympic Sotheby's Int'l Realty
FOR SALE BY OWNER
$433,000
3 beds1 bath1,008 sq ft
19237 Rosemary St SW, Rochester, WA 98579
See all

Provided by Redfin

Sale history for 18042 Irwin St SW

As the MLS and public records start to fill up, we'll list the details here.

Year

Property tax

Land + Additions

Assessment*

2026

$5,550 (+2.2%)

$225,300 + $426,300

$651,600

2025

$5,430 (+4.5%)

$225,300 + $426,300

$651,600

2024

$5,196 (+12.9%)

$211,800 + $416,100

$627,900

2023

$4,603 (−3.1%)

$174,400 + $427,500

$601,900

2022

$4,752 (−4.6%)

$131,100 + $444,400

$575,500

2021

$4,981 (−8.7%)

$152,900 + $310,600

$463,500

2020

$5,457 (+15.5%)

$79,100 + $369,500

$448,600

2019

$4,724 (−9.4%)

$91,700 + $318,000

$409,700

2018

$5,216 (+9.2%)

$80,600 + $286,800

$367,400

2017

$4,777 (+6.5%)

$80,600 + $286,800

$367,400

2016

$4,487 (+4.0%)

$68,950 + $271,100

$340,050

2015

$4,313 (+4.7%)

$76,050 + $240,400

$316,450

2014

$4,120 (−5.8%)

$78,800 + $207,800

$286,600

2013

$4,375 (+2.4%)

$78,800 + $207,800

$286,600

2012

$4,274 (+0.3%)

$84,900 + $209,000

$293,900

2011

$4,262 (+6.6%)

$97,000 + $216,200

$313,200

2010

$3,999 (−0.3%)

$114,300 + $222,800

$337,100

2009

$4,013

$124,250 + $219,300

$343,550

Tax history for 18042 Irwin St SW

Year

Property tax

Land + Additions

Assessment*

2026

$5,550 (+2.2%)

$225,300 + $426,300

$651,600

2025

$5,430 (+4.5%)

$225,300 + $426,300

$651,600

2024

$5,196 (+12.9%)

$211,800 + $416,100

$627,900

2023

$4,603 (−3.1%)

$174,400 + $427,500

$601,900

2022

$4,752 (−4.6%)

$131,100 + $444,400

$575,500

2021

$4,981 (−8.7%)

$152,900 + $310,600

$463,500

2020

$5,457 (+15.5%)

$79,100 + $369,500

$448,600

2019

$4,724 (−9.4%)

$91,700 + $318,000

$409,700

2018

$5,216 (+9.2%)

$80,600 + $286,800

$367,400

2017

$4,777 (+6.5%)

$80,600 + $286,800

$367,400

2016

$4,487 (+4.0%)

$68,950 + $271,100

$340,050

2015

$4,313 (+4.7%)

$76,050 + $240,400

$316,450

2014

$4,120 (−5.8%)

$78,800 + $207,800

$286,600

2013

$4,375 (+2.4%)

$78,800 + $207,800

$286,600

2012

$4,274 (+0.3%)

$84,900 + $209,000

$293,900

2011

$4,262 (+6.6%)

$97,000 + $216,200

$313,200

2010

$3,999 (−0.3%)

$114,300 + $222,800

$337,100

2009

$4,013

$124,250 + $219,300

$343,550

*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.

Zoning

RL1/1

Residential Lamird-One Dwelling Unit Per Acre District

The purposes of this district are to: Establish a district that contains limited areas of more intensive rural residential development, consistent with RCW 36.70A.070(5)(d), that existed as of July 1, 1990 at a density of approximately one dwelling unit per acre.; Provide for infill residential development at a maximum density of one dwelling unit per acre, consistent with the development pattern established before July 1, 1990.; Provide development standards to assure that infill residential development is consistent with surrounding uses and can be accommodated without new urban level services.

Permitted uses

Include but are not limited to:

Agriculture
Housing-Single unit
Housing-Multiple units

Property details

Interior

Bathroom Information
# of Full Baths: 1
# of 1/2 Baths: 1
# of 3/4 Baths: 1
# of Bathroom Fixtures: 13

Heating & Cooling
Heating Fuel Type: Electric
Heating Type: Heat Pump

Fireplace Information
# of Fireplaces: 1
Has Fireplace

Exterior

Exterior Information
Physical Condition: Average
Foundation Type: Concrete
Building Style Type: Rambler
Building Construction Quality: Average
Exterior Wall: Wood Siding
Roof Shape Type: Gable

Property Information
Living Sq. Ft: 2,046
Ground Floor Sq. Ft: 2,046
Building Sq. Ft: 2,878
# of Units: 1
# of Stories: 1
Legal Description: SECTION 34 TOWNSHIP 16 RANGE 3W QUARTER SW SW GOVT LT 5 LL-0417 LT 2 DOCUMENT 003/082 LESS 30F RW

Parking & Garage Information
Parking Type: Attached Garage
Garage/Parking Sq. Ft: 832
Garage / Carport Type: Attached

Lot Information
# of Buildings: 2
Land Sq. Ft: 236,095
Legal Lot Number: 5
School Tax District: ROCHESTER
Municipality Type: 490
Municipality Name: CITY OF ROCHESTER
Acres: 5.42
Zoning Code: RL1/1
County Use Description: RESIDENTIAL SINGLE
State Use Description: RESIDENCES

Utility Information
Sewer Type: Septic
Water Service Type: Well

Financial

Assessor Information
Assessment Year: 2025

Public facts

Beds: 3
Baths: 2.5
Sq. Ft.: 2,046
Stories: 1.0
Lot Size: 5.42 acres
Style: Single Family Residential
Year Built: 1992
Year Renovated: 1994
County: Thurston County
APN: 13634330301

Home facts updated by county records on Sep 18, 2026

Around this home

Schools

Rochester Primary School

Public PreK-2 • Assigned • 2.1mi

Rochester Middle School

Public 6-8 • Assigned • 1.8mi

7/10

Rochester High School

Public 9-12 • Assigned • 1.9mi

5/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Climate risks

1/10 Flood Factor

Minimal risk of a flood reaching the building in the next 30 years

1/10 Fire Factor

Unlikely to be in a wildfire in next 30 years

3/10 Heat Factor

7 days above 89° expected this year, 14 days in 30 years

1/10 Wind Factor

Minimal risk of severe winds over next 30 years

6/10 Air Factor

7 unhealthy days expected this year, 7 days in 30 years

Provided by First Street

Historical weather

Rochester, WA • 98579

Average low and high temperatures (°F)

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Sun exposure

In this area, properties receive around 8.6 hours in June and 1.8 hours in December, placing it below the U.S. average for solar exposure.

8.6 hrs

1.8 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$628,000 – $760,000

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New listings for sale in 98579

NEW

$435,000

3 beds2 baths1,310 sq ft

5424 187th Ct SW, Rochester, WA 98579

Vaulted ceilings • Split-bedroom layout • Private master suite

Listing provided by NWMLS as Distributed by MLS Grid

$625,000

3 beds2 baths2,664 sq ft

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Listing provided by NWMLS as Distributed by MLS Grid

$619,000

3 beds2 baths1,558 sq ft

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Listing provided by NWMLS as Distributed by MLS Grid

FOR SALE BY OWNER

$433,000

3 beds1 bath1,008 sq ft

19237 Rosemary St SW, Rochester, WA 98579

Built 1991 • Listed 10 days

Home values near 18042 Irwin St SW

Data from public records.

Address	Redfin Estimate
17910 Irwin Street Southwest, Rochester, WA 3 Beds \| 2 Baths \| 2282 Sq. Ft.	$632,731
17928 Irwin Street Southwest, Rochester, WA 3 Beds \| 2 Baths \| 1344 Sq. Ft.	$435,415

Address	Redfin Estimate
17922 Irwin Street Southwest, Rochester, WA 3 Beds \| 2 Baths \| 2306 Sq. Ft.	$549,377
17936 Irwin Street Southwest, Rochester, WA 4 Beds \| 2.5 Baths \| 2752 Sq. Ft.	$643,327

Address	Redfin Estimate
17916 Irwin Street Southwest, Rochester, WA 3 Beds \| 2 Baths \| 2182 Sq. Ft.	$633,270
18104 Peterbilt Lane Southwest, Rochester, WA 4 Beds \| 2.5 Baths \| 2304 Sq. Ft.	$630,956

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About this home

Redfin Estimate

Earn from this home

Market trends in 98579, WA

Sale history for 18042 Irwin St SW

Tax history for 18042 Irwin St SW

Zoning

Property details

Around this home

Schools

Lifestyle

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 98579

Home values near 18042 Irwin St SW

More real estate resources