Mercer Island neighborhood
Westside Mercer Island homes for sale
6 homes are for sale in Westside Mercer Island today, at a median asking price of $3,617,500. In the twelve months to October 2026, 12 homes sold there through NWMLS at a median of $3,139,000 after 10 days on market.
For sale now
6
1 more pending
Sold, last 12 months
12
to October 2026
Median sold price
$3,139,000
$873 per sq ft
Median days on market
10
cumulative, closed sales
Sale to list price
98.7%
median, closed sales
Information and statistics derived from Northwest Multiple Listing Service.
6 homes in Westside Mercer Island for sale
Listings sourced from NWMLS. Availability can change; confirm before touring. Every matching home is on the map; pan or draw to narrow the list.
Active119 days active · 119 cumulative$3,450,000
MLS# 25875324889 Forest Avenue SE
Mercer Island, WA 98040
5 bd3.25 ba4,910 sqftListing courtesy of COMPASS
Active83 days active · 83 cumulative$1,995,000
MLS# 25791285610 W Mercer Way
Mercer Island, WA 98040
4 bd3.5 ba2,810 sqftListing courtesy of Real Residential
Active46 days active · 46 cumulative$3,785,000
MLS# 25748554715 81st Avenue SE
Mercer Island, WA 98040
4 bd4.5 ba4,440 sqftListing courtesy of John L. Scott, Inc.
Active124 days active · 124 cumulative$4,790,000
MLS# 25513864835 Forest Avenue SE
Mercer Island, WA 98040
3 bd3.75 ba3,670 sqftListing courtesy of Windermere Mercer Island
Active224 days active · 224 cumulative$7,499,988
MLS# 252207018 Holly Lane
Mercer Island, WA 98040
6 bd4 ba5,163 sqftListing courtesy of Windermere Real Estate/East
Active95 days active · 95 cumulative$3,448,000
MLS# 25166345222 Forest Avenue SE
Mercer Island, WA 98040
5 bd4.25 ba3,851 sqftListing courtesy of Real Residential
Information and statistics derived from Northwest Multiple Listing Service. Source: Northwest Multiple Listing Service, as distributed by MLS GRID.
Based on information submitted to the MLS GRID as of October 13, 2026 at 9:19 PM PT (date and time MLS GRID Data was obtained). All data is obtained from various sources and may not have been verified by broker or MLS GRID. Supplied Open House Information is subject to change without notice. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information.
Listing information courtesy of Northwest Multiple Listing Service (NWMLS). The listing data relating to real estate for sale on this web site comes in part from the Northwest Multiple Listing Service. Real estate listings held by brokerage firms other than RexMont Real Estate are marked with the “Listing courtesy of NWMLS” designation. Information provided is for the consumer’s personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.
Some IDX listings have been excluded from this website.
© 2026 Northwest Multiple Listing Service. All rights reserved. Listing information deemed reliable but not guaranteed.
Equal Housing Opportunity. RexMont Real Estate is pledged to the letter and spirit of U.S. policy for the achievement of equal housing opportunity throughout the Nation. We encourage and support an affirmative advertising and marketing program in which there are no barriers to obtaining housing because of race, color, religion, sex, handicap, familial status, or national origin.
Copyright concernsThe Westside Mercer Island market
Westside Mercer Island homes for sale and what sold, last 12 months
Westside Mercer Island is one of the communities the Northwest Multiple Listing Service maps in Mercer Island (ZIP 98040), and every figure on this page covers the homes NWMLS files under it. In the twelve months to October 2026, 12 homes closed at a median price of $3,139,000, $873 per square foot. Eight sales in ten landed between $2,100,000 and $8,850,000. The median home spent 10 days on market (cumulative, across relists) and sold for 98.7% of its final list price, about 1.3% under its final asking price.
Those sales were 12 single-family houses (median $3,139,000). The median home sold had 5 bedrooms and 4,122 square feet and was built in 1971. 12 sales at $2 million or more.
Right now 6 homes are for sale in Westside Mercer Island, asking $1,995,000 to $7,499,988, and 1 more is pending. The map below holds every one, read from NWMLS and refreshed every 30 minutes. The alert on this page watches Westside Mercer Island for new listings, and the value form beside it prices a home you own here against these same sales, prepared by a broker rather than an automated estimate.
Sales by price, last 12 months
- Under $750K0
- $750K to $1M0
- $1M to $1.5M0
- $1.5M to $2M0
- $2M to $3M6
- $3M and up6
What sold, by home type
| Type | Sales | Median |
|---|---|---|
| single-family houses | 12 | $3.14M |
Median home sold: 5 bd · 4,122 sq ft · built 1971
Transit and internet at the middle of Westside Mercer Island
0 / 100 Station Score™
At the middle of Westside Mercer Island, the RexMont Station Score™ is 0 of 100 (little transit nearby). Each listing page scores its own address.
Home broadband speed tests at the middle of Westside Mercer Island ran a median 368 Mbps down and 214 Mbps up (20 tests, 2026-Q3, Ookla® Open Data).
New listing alerts
Get new Westside Mercer Island listings the day they list.
One daily email at most when a home comes on the market in Westside Mercer Island's ZIP code, Coming Soon listings included, with a RexMont broker ready to arrange the tour.
Watching: New listings in Westside Mercer Island, Mercer Island (ZIP 98040)
Your home value, prepared by the designated broker
Prepared by Adriano ToriFounder & Designated Broker · WA Lic. #27660What is my Westside Mercer Island home worth?
12 Westside Mercer Island sales in the last twelve months set the range. Adriano Tori prices your home against the ones most like it, comps included, within 24 hours. No automated estimate, no obligation.
FAQ
Westside Mercer Island homes for sale: the questions asked first.
How many homes are for sale in Westside Mercer Island, Mercer Island?
6 homes are listed for sale in Westside Mercer Island today, at a median asking price of $3,617,500, with 1 more pending. The list on this page reads NWMLS every 30 minutes.
What is the median home price in Westside Mercer Island?
$3,139,000 across 12 closed sales in the twelve months to October 2026, or $873 per square foot. Eight sales in ten fell between $2,100,000 and $8,850,000. Information and statistics derived from Northwest Multiple Listing Service.
How fast do homes sell in Westside Mercer Island?
The median home spent 10 days on market (cumulative, across relists) and sold for 98.7% of its final list price, about 1.3% under its final asking price. Price, condition and the season move individual homes well away from the median; the listing broker's history for a specific home is on its own page.
What kinds of homes sell in Westside Mercer Island?
In the last twelve months: 12 single-family houses (median $3,139,000). The median home sold had 4,122 square feet and 5 bedrooms.
Where does the Westside Mercer Island boundary on this page come from?
From NWMLS itself: listing brokers file every home under a community from the MLS's own list for the area, and this page counts the homes filed as "Westside" in Mercer Island. The same rule picks the live listings and the closed sales, so the count, the map and the medians describe the same homes. City and neighborhood-association maps can draw the line slightly differently.
Neighborhoods near Westside Mercer Island
- Mid-Island Mercer Island homes for salemedian $1.83M · 14 sold in 12 months
- West Mercer homes for salemedian $2.5M · 11 sold in 12 months
- North End Mercer Island homes for salemedian $2.63M · 38 sold in 12 months
- South End Mercer Island homes for salemedian $2.59M · 20 sold in 12 months
- Downtown Mercer Island homes for salemedian $520K · 8 sold in 12 months
- First Hill Mercer Island homes for salemedian $2.16M · 12 sold in 12 months
Information and statistics derived from Northwest Multiple Listing Service. Source: Northwest Multiple Listing Service, as distributed by MLS GRID.
Based on information submitted to the MLS GRID as of October 13, 2026 at 9:19 PM PT (date and time MLS GRID Data was obtained). All data is obtained from various sources and may not have been verified by broker or MLS GRID. Supplied Open House Information is subject to change without notice. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information.
Listing information courtesy of Northwest Multiple Listing Service (NWMLS). The listing data relating to real estate for sale on this web site comes in part from the Northwest Multiple Listing Service. Real estate listings held by brokerage firms other than RexMont Real Estate are marked with the “Listing courtesy of NWMLS” designation. Information provided is for the consumer’s personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.
Some IDX listings have been excluded from this website.
© 2026 Northwest Multiple Listing Service. All rights reserved. Listing information deemed reliable but not guaranteed.
Equal Housing Opportunity. RexMont Real Estate is pledged to the letter and spirit of U.S. policy for the achievement of equal housing opportunity throughout the Nation. We encourage and support an affirmative advertising and marketing program in which there are no barriers to obtaining housing because of race, color, religion, sex, handicap, familial status, or national origin.
Copyright concernsNeighborhood statistics: closed NWMLS residential sales filed under “Westside” in Mercer Island, October 2025 to October 2026, refreshed monthly. Station Score™ from King County Metro and Sound Transit schedules; internet from Ookla® Open Data.