803 E Prospect St, Seattle, WA 98102 Property Records

King County property record for 803 E Prospect St, Seattle, WA 98102

Property Summary

Property Type	Single Family Home
Details	5 bd · 4.25 ba · 6,810 sqft · built 1922
Lot Size	0.172 acres (7,500 sqft)
Owner	2 Individual Names on Record
Last Sale	$2,479,000 (Mar 2015)
Tax Bill	$42,672 (2026)
Deeds & Mortgages	Mar 2018 Mortgage Apr 2020 Mortgage
Flood Zone	Zone X (minimal risk)
APN	`983120-0500`

Property Details

APN / Parcel Number

Primary APN	`983120-0500`
Alternative APN	`983120050007`

Interior

Bedrooms	5 Beds
Full Baths	4.25 Baths
Half Baths	5 Half Baths
Stories	2 Stories
Building Area	6,810 sqft Living Area
Gross Area	7,050 sqft
1st Floor Area	2,550 sqft
2nd Floor Area	2,360 sqft
Upper Floors Area	1,200 sqft
Basement Area	940 sqft
Finished Basement	700 sqft
Unfinished Basement	240 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1922
Effective Year Built	Effective 1922
Exterior Material	Brick
Lot Area	7,500 sqft (0.172 acres)
Garage Type	Detached
Garage Area	510 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Heating System	Hot Water
Heating Fuel	Electric
Sewer	Municipal
Water Source	Commercial

Location & Zoning

Account Number	983120050007
Street Address	803 E PROSPECT ST
City	SEATTLE
State	WA
Zip	98102-4316
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	NR3
Legal Description	YESLERS SARAH B 1ST ADD N 25 FT OF 11 & ALL 12
Legal Range	04
Legal Township	25
Legal Section	29
Legal Subdivision	YESLERS SARAH B 1ST ADD
Legal Block	4
Legal Lot Number	11-12
Jurisdiction	KING WA
Township / Civil Division	SEATTLE
Census Block Group	3
Census Block	3002
Census Tract	6500

Historic Designation

Source: NPS National Register of Historic Places, as of August 1, 2026

Historic District	Within the Harvard-Belmont District listed 1982 · 67 contributing resources · NRIS 82004237

Federal listing alone does not restrict alterations; local historic district rules, which this data does not cover, may apply.

Owner

Source: King County records, as of July 7, 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record	2 Individual Names on Record
Mailing Address	803 E PROSPECT ST, SEATTLE, WA 98102-4316
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Mar 5, 2018	Deed of Trust, Mortgage · ARM MORGAN STANLEY PRIVATE BANK NA
Apr 29, 2020	Deed of Trust, Mortgage · Conventional Mortgage MORGAN STANLEY PRIVATE BANK NA

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Mar 23, 2015 · Amount on Record
Deed Sale	Mar 23, 2015 · Amount on Record
Prior Sale	May 13, 2010 · Amount on Record
Deed Document Number	2015874
Prior Transfer Date	Jun 3, 1998
Prior Transfer Doc	0000000883
Record Updated	Oct 29, 2026

March 2018: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	KING WA
Property Address	803 E PROSPECT ST, SEATTLE, WA 98102-4316
Transaction Type	Mortgage
Record Updated	Feb 5, 2021
Title Company	CW TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000000809
Date	Mar 5, 2018
Instrument	20180305000809

Lender

Name	MORGAN STANLEY PRIVATE BANK NA
Type	Bank
Address	CINCINNATI, OH 45245

Agreement

Type	ARM
Amount	Amount Recorded
Term	361 Months
Due	Apr 1, 2048

Interest

Rate Type	Adjustable Rate
Rate	3.7%
Type Change Date	Apr 1, 2025
Change Frequency	Annually
Min Rate At Change	2.5%
Max Rate At Change	8.7%
Index	1-Year LIBOR
Max Rate	8.7%

April 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	KING WA
Property Address	803 E PROSPECT ST, SEATTLE, WA 98102-4316
Transaction Type	Mortgage
Record Updated	Feb 5, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000000720
Date	Apr 29, 2020
Instrument	20200429000720

Lender

Name	MORGAN STANLEY PRIVATE BANK NA
Type	Bank
Address	CINCINNATI, OH 45245

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	May 1, 2050

Tax Assessment & Valuation

Source: King County assessment roll, as of July 7, 2026

Property Jurisdictions

Type	Name
State	Washington
County	King County
Municipality	Seattle City
Unified School District	Seattle Public Schools (PK - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2026	$42,672.00 (+10.74%)
2025		$4,206,000 (+2.89%) Land $1,399,000 Building $2,807,000	$4,206,000 (+2.89%) Land $1,399,000 Building $2,807,000
2024	$38,534.00 (+25.42%)	$4,088,000 (+11.15%) Land $1,399,000 Building $2,689,000	$4,088,000 (+11.15%) Land $1,399,000 Building $2,689,000
2022	$30,724.00	$3,678,000 Land $1,236,000 Building $2,442,000	$3,678,000 Land $1,236,000 Building $2,442,000

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

Flood

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.

Wildfire

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.

Drinking Water

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

Violations Reported to EPA

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.

Internet Providers

Source: FCC Broadband Data Collection, based on 403 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
AT&T Fixed Wireless	100 / 20
T-Mobile Fixed Wireless	100 / 20

May also be available: Astound Broadband, Google Fiber.

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