4126 78th Ave
Mercer Island, WA 98040
5 bd 4.3 ba 5,100 sqft Built 1956 Lot 36,590 sqft single_family
No recorded sales
Location
Timeline: Sale, Listing & Tax History
Recorded events
No recorded events
No sale or listing events are on file for this property.
Tax assessment history
| Year | Building | Land | Total assessed | Tax paid |
|---|---|---|---|---|
| 2025 | $1,116,000 | $2,190,000 | $3,306,000 | $20,783 |
| 2024 | $1,182,000 | $1,991,000 | $3,173,000 | $20,521 |
| 2023 | $1,219,000 | $2,114,000 | $3,333,000 | $20,447 |
| 2022 | $751,000 | $1,740,000 | $2,491,000 | $18,348 |
| 2021 | $542,000 | $1,658,000 | $2,200,000 | $17,614 |
| 2020 | $657,000 | $1,644,000 | $2,301,000 | $18,180 |
| 2019 | $641,000 | $1,612,000 | $2,253,000 | $16,933 |
| 2018 | $536,000 | $1,458,000 | $1,994,000 | $17,302 |
| 2017 | $523,000 | $1,333,000 | $1,856,000 | $15,108 |
| 2016 | $474,000 | $1,207,000 | $1,681,000 | $14,053 |
| 2015 | $376,000 | $1,306,000 | $1,682,000 | $13,544 |
| 2014 | $372,000 | $721,000 | $1,093,000 | $9,988 |
| 2013 | $343,000 | $665,000 | $1,008,000 | $9,524 |
| 2012 | $309,000 | $807,000 | $1,116,000 | $9,668 |
| 2011 | $309,000 | $807,000 | $1,116,000 | $9,579 |
| 2009 | $383,000 | $1,000,000 | $1,383,000 | $9,535 |
| 2007 | $680,000 | $543,000 | $1,223,000 | $8,191 |
Property facts
Year built
1956
Property type
single_family
Stories
—
Beds
5
Baths
4.3
Living area
5,100 sqft
Lot size
36,590 sqft
ZIP code
98040
City
Mercer Island
Street
78th Ave
Coordinates
47.57291, -122.23364
Comparable properties nearby
Frequently asked questions
When did 4126 78th Ave last sell?
No public-record sale is on file for 4126 78th Ave.
What is the current tax assessment for 4126 78th Ave?
The most recent total assessment for 4126 78th Ave (year 2025) is $3,306,000 with $20,783 in property tax.
When was 4126 78th Ave built?
4126 78th Ave was built in 1956.
How does 4126 78th Ave compare to others on 78th Ave?
We track 5 other properties on 78th Ave. Browse the list under "Other properties on 78th Ave" to compare beds, baths, and sale history.
What are the property facts for 4126 78th Ave?
4126 78th Ave is a 5 bed, 4.3 bath, 5,100 sqft, 36,590 sqft lot single_family.
Is 4126 78th Ave a flip candidate?
No — 4126 78th Ave does not appear in our flips dataset.
Is 4126 78th Ave a tax-appeal candidate?
No — 4126 78th Ave is not currently flagged as a tax-appeal candidate.
Forecast for this area
ZIP-area linear projection — not a per-property automated valuationQuarterly trend
+3.8%
Implied 1-yr
+15.2%
2026 Q3
$3.48M
2026 Q4
$3.59M
ZIP 98040 — Median Price History + Forecast
Explore nearby
Geography
Other properties on 78th Ave