Investment property lenders in King County, Washington
Fat Boy Data analyzed investment property mortgage activity in King County, Washington, home to Seattle, to show which lenders are making these loans, how often they approve, how often borrowers accept the offer, and how much they typically finance. 5,979 applications were decided by 333 lenders between 2023 and 2025.
King County at a glance
How King County compares
What the data shows
Eastside Funding, LLC made the most investment property mortgages in King County, WA, 378 of them.
Merchants Mortgage & Trust Corporation, LLC approved the highest share of applications among lenders with at least 20 decisions here, 100% of 136.
The typical investment property mortgage here is $505K, 25% larger than the Washington typical of $405K.
Each dot is one lender, placed at its approval rate. Hover for the sample size; the 5 largest lenders are named, the rest are behind the unlock.
Investment property lenders in King County
| Lender | Approval | Approved | Taken up | Typical loan | Loans made | |
|---|---|---|---|---|---|---|
| 1 | Eastside Funding, LLC | 100% | 396 / 397 | 95% | $435K | 378 |
| 2 | East West Bank | 92% | 184 / 199 | 97% | $505K | 178 |
| 3 | Boeing Employees Credit Union | 62% | 122 / 196 | 93% | $355K | 114 |
| 4 | Rocket Mortgage, LLC | 87% | 167 / 193 | 99% | $435K | 165 |
| 5 | Movement Mortgage, LLC | 92% | 173 / 188 | 89% | $445K | 154 |
Ranked by lending volume. Approval is the share of decided applications a lender approved; taken up is the share of approvals borrowers accepted. Lenders with fewer than 20 decisions are marked as a limited sample and never used for a “highest approval” claim.How the numbers work.
Fat Boy found 328 more lenders.
One email unlocks every lender Fat Boy found.
You are seeing the 5 largest investment property mortgage lenders in King County. Unlock the full market: every lender that decided one of these loans here, what they approved, how much borrowers took, and how close the nearest office is.
- Every lender in the market
- Approval rate and borrower take-up
- Typical loan size and range
- Nearest office and distance
- Branch count and application options
- How easy each lender is to reach
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