Waterfront Property Search · Mercer Island, WA
Mercer Island waterfront homes.
Waterfront homes in Mercer Island are among the most complex real estate transactions — water rights, bulkhead condition, flood zone classification, and dock permitting all require specialist knowledge. RexMont's agents have represented buyers and sellers across the region's lakes, rivers, and Puget Sound shoreline.
Market context
What buyers and sellers should know.
Mercer Island waterfront inventory is permanently constrained. The best properties — deep water, stable bulkheads, south or west exposure, and legal dock structures — rarely come to market and typically sell quickly when they do.
Mercer Island single-family homes are currently priced around $2.7M median (roughly $788/sqft), with a typical 37 days on market. The area is served by the Mercer Island School District, and top local employers include Seattle & Bellevue professional sector, tech industry remote, and healthcare. Primary commute corridors connect to Mercer Island Link Light Rail Station and I-90 to Seattle or Bellevue (~10 min).
RexMont Real Estate is Seattle and the Eastside's most-reviewed brokerage — 1,242+ five-star Google reviews and over $1 billion in closed transactions across 1,200+ deals.
Before you buy
What to know about waterfront homes in Mercer Island.
Bulkhead condition and repair costs
Bulkheads (the retaining structures along the waterline) deteriorate over time and are expensive to repair or replace — $50,000–$300,000+ depending on linear footage and construction type. Always commission a bulkhead inspection by a marine engineer.
Dock permitting and water rights
Not all waterfront properties have permitted dock structures. Confirm dock permits, any Washington Department of Fish and Wildlife restrictions, and whether the dock is in a no-wake or no-motor zone.
Flood zone designation
FEMA flood zone classification affects insurance costs significantly. Properties in high-risk zones (Zone A or AE) require federally mandated flood insurance, which can add $3,000–$10,000+/year to holding costs.
Septic vs. sewer for older waterfront
Many older waterfront properties are on septic systems near the water's edge. King County and other jurisdictions have increasingly strict requirements for septic systems near shorelines. Inspect carefully and budget for potential upgrades.
Shoreline erosion and environmental restrictions
Washington's Shoreline Management Act regulates development within 200 feet of water. Additions, new structures, and even significant landscaping may require permits that can be difficult to obtain.
Tools & insights
Resources for Mercer Island buyers and sellers.
Mortgage calculator
Estimate monthly payments and total interest.
Home value estimate
Get an agent-prepared estimate of your Mercer Islandhome's value.
Cost of buying a home
Closing costs, reserves, and what to have liquid before you start.
All Mercer Island homes
Browse every Mercer Island listing and neighborhood guide.
Live NWMLS data
Active Mercer Island waterfront homes for sale
The latest active NWMLS waterfront homes in Mercer Island, refreshed hourly.
- Median price
- $2.39M
- Median $/sqft
- $764
- Avg days on market
- 42
- Listings for sale
- 89+
Active4 days active · 4 cumulative$1,998,000
MLS# 25941987627 SE 22nd Street
Mercer Island, WA 98040
4 bd2.5 ba2,600 sqftListing courtesy of Coldwell Banker Bain
Active117 days active · 117 cumulative$3,585,000
MLS# 25947137712 89th Place SE
Mercer Island, WA 98040
5 bd3.5 ba4,330 sqftListing courtesy of Engel & Voelkers Bellevue
Early Access · First Look$450,000
MLS# 25937022500 81st Avenue SE #112
Mercer Island, WA 98040
2 bd1 ba965 sqftListing courtesy of Keller Williams Eastside
Active6 days active · 6 cumulative$3,500,000
MLS# 25903707731 SE 58th ST
Mercer Island, WA 98040
3 bd2.5 ba2,278 sqftListing courtesy of Windermere Mercer Island
Active39 days active · 39 cumulative$1,995,000
MLS# 25929189095 SE 79th Street
Mercer Island, WA 98040
3 bd2.5 ba2,830 sqftListing courtesy of Windermere Real Estate/East
Active10 days active · 10 cumulative$2,999,999
MLS# 25908118205 SE 71st Street
Mercer Island, WA 98040
5 bd3 ba3,775 sqftListing courtesy of Skyline Properties, Inc.
Active12 days active · 12 cumulative$2,700,000
MLS# 25911986720 W Mercer Way
Mercer Island, WA 98040
4 bd3 ba3,800 sqftListing courtesy of Windermere Mercer Island
Early Access · First Look$1,399,000
MLS# 25913018227 SE 35th Street
Mercer Island, WA 98040
3 bd1.75 ba1,540 sqftListing courtesy of Coldwell Banker Bain
Active117 days active · 117 cumulative$1,999,000
MLS# 25853024336 E Mercer Way
Mercer Island, WA 98040
4 bd2.5 ba2,888 sqftListing courtesy of Windermere Mercer Island
Active34 days active · 34 cumulative$2,648,000
MLS# 25910767803 89th Place SE
Mercer Island, WA 98040
4 bd4 ba3,598 sqftListing courtesy of Coldwell Banker Bain
Active17 days active · 17 cumulative$2,200,000
MLS# 25903119100 SE 72nd Place
Mercer Island, WA 98040
6 bd2.25 ba3,420 sqftListing courtesy of Lake & Company
Active79 days active · 79 cumulative$3,175,000
MLS# 25904228430 SE 53rd Place
Mercer Island, WA 98040
6 bd3.75 ba4,870 sqftListing courtesy of COMPASS
Active188 days active · 188 cumulative$280,000
MLS# 25893872939 76th Avenue SE #41B
Mercer Island, WA 98040
0 bd1 ba455 sqftListing courtesy of John L. Scott, Inc.
Active122 days active · 122 cumulative$1,698,000
MLS# 25901779210 Parkwood Ridge Road
Mercer Island, WA 98040
3 bd2.5 ba2,570 sqftListing courtesy of Coldwell Banker Bain
Active17 days active · 17 cumulative$2,998,000
MLS# 25892934408 E Mercer Way
Mercer Island, WA 98040
5 bd3.25 ba5,040 sqftListing courtesy of John L. Scott, Inc.
Active47 days active · 47 cumulative$3,225,000
MLS# 25896777560 86th Avenue SE
Mercer Island, WA 98040
4 bd3.5 ba4,380 sqftListing courtesy of John L. Scott, Inc.
Active17 days active · 17 cumulative$2,598,000
MLS# 25887757070 94th Avenue SE
Mercer Island, WA 98040
4 bd2.5 ba3,700 sqftListing courtesy of Realogics Sotheby's Int'l Rlty
Active18 days active · 18 cumulative$21,900,000
MLS# 25852305904 SE 20th Street
Mercer Island, WA 98040
6 bd6.5 ba7,864 sqftListing courtesy of Coldwell Banker Bain
Active125 days active · 125 cumulative$3,450,000
MLS# 25875324889 Forest Avenue SE
Mercer Island, WA 98040
5 bd3.25 ba4,910 sqftListing courtesy of COMPASS
Active41 days active · 41 cumulative$1,850,000
MLS# 25871444057 96th Avenue SE
Mercer Island, WA 98040
4 bd3.5 ba2,140 sqftListing courtesy of Realogics Sotheby's Int'l Rlty
Active22 days active · 22 cumulative$849,999
MLS# 25851623206 80th Avenue SE #3
Mercer Island, WA 98040
3 bd1.75 ba1,375 sqftListing courtesy of Realogics Sotheby's Int'l Rlty
Active28 days active · 28 cumulative$10,680,000
MLS# 25853558493 W Mercer Way
Mercer Island, WA 98040
5 bd4.75 ba5,370 sqftListing courtesy of COMPASS
Active31 days active · 31 cumulative$2,298,000
MLS# 25839258539 SE 79th Place
Mercer Island, WA 98040
4 bd2.75 ba2,909 sqftListing courtesy of Coldwell Banker Bain
Active133 days active · 133 cumulative$2,149,000
MLS# 25831364830 88th Place SE
Mercer Island, WA 98040
5 bd3.25 ba3,520 sqftListing courtesy of Coldwell Banker Bain
All 89 homes as a list
- 5212 W Mercer Place · $1,710,000
- 4140 Boulevard Place · $3,100,000
- 9226 SE 60th Street · $2,300,000
- 7909 78th Avenue SE · $6,800,000
- 8337 E Mercer Way · $2,450,000
- 8270 SE 31st Street · $4,098,000
- 5610 W Mercer Way · $1,995,000
- 8140 Evergreen Lane · $2,595,000
- Address withheld · Mercer Island · $15,000,000
- 9426 SE 52nd Street · $2,899,988
- 8279 W Mercer Way · $7,650,000
- 3515 72nd Avenue SE · $2,198,000
- 6924 96th Avenue SE · $2,698,000
- 9221 SE 46th Street · $3,995,000
- 8410 SE 47th Place · $2,200,000
- 5330 Butterworth Road · $17,900,000
- 7921 E Mercer Way · $2,100,000
- 4715 81st Avenue SE · $3,785,000
- 3410 W Mercer Way · $5,586,000
- 2434 73rd Avenue SE · $1,795,000
- 2227 77th Avenue SE · $3,495,000
- 8340 Avalon Drive · $3,250,000
- 9360 Mercerwood Drive · $2,399,000
- 2965 74th Avenue SE · $4,500,000
- 3427 72nd Place SE · $4,250,000
- 9418 SE 33rd Street · $5,999,000
- 3621 81st Avenue SE · $1,898,000
- 2500 81st Avenue SE #351 · $395,000
- 4725 W Mercer Way · $3,500,000
- 6560 81st Avenue SE · $1,685,000
- 7445 SE 71st Street · $12,000,000
- 8431 SE 39th Street · $2,997,000
- 6427 E Mercer Way · $4,995,000
- 6427 E Mercer Way · $1,600,000
- 4739 Fernridge Lane · $2,299,000
- 8001 West Mercer Street · $3,500,000
- 2444 72nd Avenue SE · $1,695,000
- 7066 92nd Avenue SE · $2,299,000
- 7549 SE 29th Street #103 · $829,900
- 4835 Forest Avenue SE · $4,790,000
- 9433 SE 54th Street · $998,000
- 2500 81st Avenue SE #329 · $360,000
- 8114 W Mercer Way · $700,000
- 4024 85th Avenue SE · $4,099,995
- 3745 88th Avenue SE · $3,495,000
- 6333 77th Avenue SE · $19,500,000
- Address withheld · Mercer Island · $9,950,000
- 5709 80th Avenue SE · $1,586,000
- 9818 SE 42nd Place · $5,450,000
- 4041 W Mercer Way · $13,995,000
- 5222 Forest Avenue SE · $3,398,000
- 7703 W Mercer Way · $6,250,000
- 6418 E Mercer Way · $1,999,000
- 7600 SE 29th St #311 · $565,000
- 8233 W Mercer Way · $24,000,000
- 2500 81st Avenue SE #118 · $399,950
- 8526 E Mercer Way · $1,699,500
- 8025 W Mercer Way · $12,000,000
- 7220 North Mercer Way · $6,200,000
- 7220 N Mercer Way · $6,200,000
- Address withheld · Mercer Island · $28,000,000
- 8260 Avalon Drive · $9,590,000
- 7254 N Mercer Way · $6,995,000
- 0 XX23 91 st Avenue SE · $379,950
- 0 XXX 91st Avenue SE · $279,950
Listing data courtesy of NWMLS. Provided for the consumer's personal, non-commercial use. Market stats reflect representative market data for Mercer Island; current listings and individual neighborhoods may vary.
See all waterfront homes →Based on information submitted to the MLS GRID as of October 19, 2026 at 9:04 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.
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Common questions
Mercer Island waterfront homes FAQ.
- What does waterfront property cost in Mercer Island?
- Waterfront pricing in Mercer Island varies dramatically by water body, depth, views, and improvements. RexMont's waterfront specialists can give you a current market snapshot and identify what distinguishes premium properties from those that are simply on the water.
- Is waterfront property a good investment?
- Waterfront with deep water access, a stable bulkhead, and full permits consistently holds value over time. Waterfront properties with deferred maintenance, flood risk, or permitting issues carry more volatility.