House Improvements – 18434 42nd Ave S, SeaTac, WA 98188 Price: $1,200,000 (or $989,000 depending on offer structure) Showing Requirement: “By Appointment Only†Negotiation Option: Seller open to renting the home back from the new owner to allow a smooth transition and move out timeline.
Property Overview
This well maintained SeaTac residence offers a rare combination of space, upgrades, and income producing potential. The main home provides 2,208 sq ft across two full floors, complemented by a 1,200 sq ft garage and an attached 360 sq ft shop, creating an exceptional footprint for storage, hobbies, or additional rental strategies.
• House: 46' x 24' = 1,104 sq ft per floor → 2,208 sq ft total
• Garage: 30' x 40' = 1,200 sq ft
• Shop/Shed: 9' x 40' = 360 sq ft
Major Upgrades & Improvements
This property has been thoughtfully updated with long term durability and comfort in mind. Nearly every major system has been modernized, giving future owners peace of mind and reduced maintenance costs.
• 2024: Full replacement of all hot and cold water pipes throughout the home
• 2021: Lifetime roof installed
• 2024: Brand new heater and air conditioning system
• 2023: Complete upstairs remodel
• 2023: New flooring installed on both front and back decks
• 2024: Downstairs bathroom fully remodeled
• 2023: Electrical breaker panel replaced
• 2024: New gas hot water tank installed
These upgrades make the home move in ready while also supporting long term rental stability.
What Makes This Property Special
This address presents a standout opportunity for real estate investors, co living operators, or anyone seeking a high income rental asset in one of the Puget Sound region's most strategically positioned markets.
Located minutes from Seattle Tacoma International Airport, Boeing, Southcenter, Downtown Seattle, and major transit corridors, the home is ideally situated for workforce housing and commuter convenience.
The flexible layout includes:
• Upstairs: 2 bedrooms, kitchen, dining room, living room, fireplace, bathroom
• Downstairs: 2 bedrooms, kitchen area potential, living space, bathroom
This configuration supports co living, shared housing, or multi unit rental strategies, maximizing occupancy and monthly cash flow. Ample parking, a massive garage, and an attached shop further expand the property's utility for tenants, contractors, hobbyists, or small business owners.
With its combination of location, size, upgrades, and income potential, this property stands out as a rare investment in the greater Seattle area.
For sale by owner
$1,200,000
18434 42nd Ave S, Seattle, WA 98188
4beds
--sqft
Single Family Residence
Built in 1962
-- sqft lot
$-- Zestimate®
$--/sqft
$-- HOA
What's special
Ample parkingAttached shopMassive garageFlexible layout
- 15 days
- 189
- 2
Zillow last checked:
Listed by:
Property Owner (206) 790-3500
Source: FSBO-Online.com
This property is for sale by owner and Zillow, Inc. is displaying it at the owner's request. It is not subject to a listing agreement with Zillow, Inc. or its affiliates.Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 4
- Bathrooms: 1
- 3/4 bathrooms: 1
Appliances
- Included: Dishwasher, Dryer, Freezer, Microwave, Refrigerator, Washer
Features
- Flooring: Carpet, Hardwood, Tile
- Basement: Finished
Property
Details
- Parcel number: 1565600010
Construction
Type & style
- Home type: SingleFamily
- Property subtype: Single Family Residence
Condition
- Year built: 1962
Community & HOA
HOA
- Services included: HOA
Location
- Region: Seattle
Financial & listing details
- Tax assessed value: $608,000
- Annual tax amount: $7,430
- Date on market: 8/23/2026
- Lease term: Contact For Details
Estimated market value
Not available
Estimated sales range
Not available
$3,176/mo
Price history
| Date | Event | Price |
|---|---|---|
| 8/23/2026 | Listed for sale | $1,200,000 |
Source: FSBO-Online.com Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | $7,430 +15.5% | $608,000 +5.6% |
| 2024 | $6,430 +9.6% | $576,000 +14.5% |
| 2023 | $5,867 +2.2% | $503,000 -2.7% |
| 2022 | $5,739 +1.6% | $517,000 +15.7% |
| 2021 | $5,649 +9.9% | $447,000 +13.7% |
| 2020 | $5,141 +1.6% | $393,000 +1.6% |
| 2019 | $5,062 +13.7% | $387,000 +6% |
| 2018 | $4,451 -4.7% | $365,000 +13% |
| 2017 | $4,671 +51.3% | $323,000 +13.7% |
| 2016 | $3,088 | $284,000 +9.2% |
| 2015 | $3,088 | $260,000 +22.1% |
| 2014 | $3,088 | $213,000 +19.7% |
| 2013 | $3,088 | $178,000 +7.2% |
| 2012 | -- | $166,000 -11.2% |
| 2011 | -- | $187,000 -14.2% |
| 2010 | -- | $218,000 |
| 2009 | -- | $218,000 -13.5% |
| 2007 | -- | $252,000 +21.7% |
| 2006 | -- | $207,000 +6.2% |
| 2005 | -- | $195,000 +15.4% |
| 2001 | $2,137 +2.7% | $169,000 +8.3% |
| 2000 | $2,081 | $156,000 |
Find assessor info on the county website
Monthly payment
Est. payment





