King County property record for 4100 Densmore Ave N, Seattle, WA 98103
| Property Type | Single Family Home |
|---|---|
| Details | 5 bd · 3.5 ba · 3,880 sqft · built 1924 |
| Lot Size | 0.105 acres (4,560 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $2,249,000 (Jul 2026) |
| Tax Bill | $14,144 (2026) |
| Deeds & Mortgages | Jul 2026 Sale & Mortgage Jan 2026 Sale & Construction Loan |
| Flood Zone | Zone X (minimal risk) |
| APN | 408330-1565 |
| Primary APN | 408330-1565 |
|---|---|
| Alternative APN |
|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 3.5 Baths |
| Half Baths | 2 Half Baths |
| Stories | 1 Story |
| Building Area | 3,880 sqft Living Area |
| 1st Floor Area | 1,400 sqft |
| Upper Floors Area | 1,080 sqft |
| Basement Area | 1,400 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1924 |
|---|---|
| Effective Year Built | Effective 1924 |
| Lot Area | 4,560 sqft (0.105 acres) |
| Porch | Slab |
| Porch Area | 260 sqft |
| Heating System | Heat Pump |
|---|---|
| Heating Fuel | Electric |
| Sewer | Municipal |
| Water Source | Commercial |
| Account Number | 408330156501 |
|---|---|
| Street Address | 4100 DENSMORE AVE N |
| City | SEATTLE |
| State | WA |
| Zip | 98103-8217 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | LR2 (M1) |
| Legal Description | LAKE UNION ADD S 40 FT PLAT BLOCK: 18 PLAT LOT: 7 |
| Legal Range | 04 |
| Legal Township | 25 |
| Legal Section | 18 |
| Legal Subdivision | LAKE UNION ADD |
| Legal Block | 18 |
| Legal Lot Number | 7 |
| Jurisdiction | KING WA |
| Township / Civil Division | SEATTLE |
| Census Block Group | 2 |
| Census Block | 2017 |
| Census Tract | 5000 |
4100 Densmore Ave N is owned and occupied by two individuals who bought it in July 2026.
Source: King County records, as of October 15, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 4100 DENSMORE AVE N, SEATTLE, WA 98103-8217 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Married Couple |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Date | Document |
|---|---|
| Jul 30, 2026 | Warranty Deed, Subdivision Related Transfer · Conventional Mortgage JPMORGAN CHASE BANK |
| Jan 7, 2026 | Warranty Deed, Construction Loan · Construction Mortgage CONVENTUS LLC |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jul 30, 2026 · Amount on File |
| Deed Sale | Jul 30, 2026 · Amount on File |
| Prior Sale | Jan 7, 2026 · Amount on File |
| Deed Document Number | 2026628 |
| Prior Transfer Date | May 5, 1994 |
| Prior Transfer Doc | 0000002422 |
| Record Updated | Oct 29, 2026 |
| Document Type | Warranty Deed |
|---|---|
| Jurisdiction | KING WA |
| Recording Date | Jul 30, 2026 |
| Property Address | 4100 DENSMORE AVE N, SEATTLE, WA 98103-8217 |
| Document Number | 0000000628 |
| Instrument Date | Jul 28, 2026 |
| Instrument | 2026628 |
| Transaction Type | Subdivision Related Transfer |
| Record Updated | Sep 21, 2026 |
| Title Company | OLD REPUBLIC TITLE |
| Amount | Amount on Record |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $0.00 |
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 4100 DENSMORE AVE N, SEATTLE, WA 98103-8217 |
| Document Number | 0000000629, |
|---|---|
| Date | Jul 30, 2026 |
| Instrument | 20260730629 |
| Name | JPMORGAN CHASE BANK |
|---|
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 360 Months |
| Due | Aug 1, 2056 |
| Rate Type | Fixed Rate |
|---|---|
| Initial Type | Fixed Rate |
| Max Rate | -1% |
| Document Type | Warranty Deed |
|---|---|
| Jurisdiction | KING WA |
| Recording Date | Jan 7, 2026 |
| Property Address | 4100 DENSMORE AVE N, SEATTLE, WA 98103-8217 |
| Document Number | 0000000490 |
| Map Reference | VOL 1 PG 238 |
| Instrument Date | Jan 7, 2026 |
| Instrument | 20260107000490 |
| Transaction Type | Construction Loan |
| Record Updated | Jan 15, 2026 |
| Title Company | OLD REPUBLIC TITLE, OLD REPUBLIC TITLE LTD |
| Amount | Amount on Record |
|---|---|
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $20,420.00 |
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 1829 29TH AVE, SEATTLE, WA 98122-3209 |
| Document Number | 0000000491 |
|---|---|
| Date | Jan 7, 2026 |
| Instrument | 20260107000491 |
| Name | CONVENTUS LLC |
|---|---|
| Type | Mortgage Company |
| Type | Construction Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 13 Months |
| Due | Feb 1, 2027 |
The 2026 property tax bill for 4100 Densmore Ave N was $14,144.
Source: King County assessment roll, as of July 7, 2026
| Type | Name |
|---|---|
| State | Washington |
| County | King County |
| Municipality | Seattle City |
| Unified School District | Seattle Public Schools (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $14,144.00 | ||
| 2025 | $1,354,000 (+6.11%) Land $1,290,000 Building $64,000 | $1,354,000 (+6.11%) Land $1,290,000 Building $64,000 | |
| 2024 | $12,423.00 | $1,276,000 Land $1,196,000 Building $80,000 | $1,276,000 Land $1,196,000 Building $80,000 |
| 2022 | $11,228.00 | $1,320,000 Land $1,067,000 Building $253,000 | $1,320,000 Land $1,067,000 Building $253,000 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 4100 Densmore Ave N in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective September 23, 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
The area around 4100 Densmore Ave N has no burnable land within ember reach, so its wildfire risk is not rated.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land within ember reach |
|---|
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | SEATTLE PUBLIC UTILITIES serves 1,161,961 people · EPA ID WA5377050 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Jul 2025 |
| Lead | 2 ppb (2025) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | None last 3 years |
Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes. This system sells water to local utilities; the supplier billing this address may be one of them.
Source: FCC Broadband Data Collection, based on 1,090 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 2,000 |
| CenturyLink Fiber · DSL in parts of the area | 2,000 / 1,000 |
| Verizon Fixed Wireless | 1,000 / 75 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: Astound Broadband.
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