Investor Profile - WA
Zach Kosturos
Zach Kosturos is a real estate investor and operator based in Seattle-Tacoma, WA. Public filings show activity across 13 properties held through 4 holding companies. Recent mortgage relationships include COUNTRY ESTATES APARTMENTS and Timberland Bank.
Zach's Activity
As of June 2026, public records show approximately $26.8M in recorded mortgage exposure linked to this investor across at least 10 mortgage filings and 13 properties held through 4 holding companies. Activity appears concentrated in residential and commercial assets recorded between 2018 and 2021.
Associated People
Primary Geography
Seattle-Tacoma, WA
ZIP codes: 98501, 98373, 98374, 98512, and 98597
Most activity in OLYMPIA, PUYALLUP, YELM, and TUMWATER.
Property Type Breakdown
Associated Entities (4)
WA · 1 property · 1 mortgage
WA · 4 properties · 1 mortgage
+2 more entities not shown
Mortgages (10)
Top Lenders
$24.9M · 9 loans
$1.9M · 1 loan
| Date | Amount | Status | Lender | Borrower | Address |
|---|---|---|---|---|---|
| 12/16/2021 | $1.9M | Open | Timberland Bank | PRAIRIE STORAGE LLC | 9138 BURNETT RD SE, YELM, WA 98597 |
| 10/01/2018 | $2.8M | Open | COUNTRY ESTATES APARTMENTS | COUNTRY ESTATES APARTMENTS LLC | 3809 22ND AVE SE, OLYMPIA, WA 98501 |
+8 more not shown
Owned Properties (13)
| Address | Deeded owner | Status | Consideration |
|---|---|---|---|
| 1710 39TH AVE SE, PUYALLUP, WA 98374 | MPSP HOLDINGS LLC | Owns - 3.8 yrs | $150k |
| 5128 JOPPA ST SW, TUMWATER, WA 98512 | TROSPER SS LLC | Owns - 4.2 yrs | $0 |
+11 more not shown
FAQ
What type of real estate does this investor focus on?
Associated mortgages and deeds show activity in residential, commercial, and industrial properties across Seattle-Tacoma, WA.
What companies is Zach Kosturos associated with?
Zach Kosturos is associated with 4 entities based on extracted signatures from public records. Key entities include PRAIRIE STORAGE LLC, COUNTRY ESTATES APARTMENTS LLC, TROSPER SS LLC, and MPSP HOLDINGS LLC.
How many properties are associated with this investor?
At least 13 properties are associated with Zach Kosturos and the entities they control, based on signatures extracted from recorded documents connecting Zach Kosturos to the entities.
Which lenders has this investor worked with?
Recent mortgage activity references COUNTRY ESTATES APARTMENTS and Timberland Bank, indicating a mix of lending relationships.
How recent is their activity?
Records show activity from 2018 through 2021, with the most recent mortgage recorded in 2021.
How is associated activity determined?
Elementix uses AI to extract signatures from recorded documents. These signatures are used to determine the relationships between people and entities. This is a novel approach that goes beyond looking at corporate filings and skip-tracing.
The information displayed on this page is compiled from recorded real estate documents, business filings, and other lawfully available sources. Elementix summarizes and analyzes public record activity related to investment real estate and associated business entities. Any contact indicators shown (such as email domain references or partial phone digits) are provided solely as unverified signals and may be incomplete or outdated.
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