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$3,791/mo
Available now
2 beds · 2 baths · 1,071 sq ft
2758 78th Ave Se, Unit B-505, Mercer Island, WA 98040See all units at Island SquareAs of October 13, 2026, Unit B-505 at Island Square in Mercer Island, WA is a 2-bed, 2-bath, 1,071 sq ft apartment renting for $3,791 a month, available now. It is the lowest-priced of 5 available 2-bed units here, which rent for $3,791 to $4,037. Listed since September 9. The rent dropped from $3,854 to $3,791 on September 26.
Unit B-505 at Island Square is on floor 5 and has the B2DD2 floor plan. Pets are allowed, garage or covered parking is available, and the unit has an in-unit washer and dryer.
Unit
B-505Floor plan
B2DD2Floor
5Beds
StudioBaths
—Size
1,071 sqftPets
Pets allowedParking
Garage or covered parkingLaundry
In-unit washer and dryerFor Unit B-505 at Island Square, the security deposit is $250. The listing shows $827.95 a month in fees (parking EV $200, parking garage $175, parking covered $105, and 10 more) and $1,844 due at signing (pet fee $500, administrative fee $400, holding deposit $250, and 6 more).
Rent
$3,791/moSecurity deposit
$250Earliest move-in
Oct 10Appliance-Related Charge | $55/mo |
Internet Services | $70/mo |
Package Services | $15/mo |
Parking - Covered | $105/mo |
Parking - EV | $200/mo |
Parking - Garage | $175/mo |
Pet Rent | $75/mo |
Positive Credit Reporting Services | $4.95/mo |
Renters Liability/Content - Property Program | $14.5/mo |
Renters Liability Only - Non-Compliance | $10.75/mo |
Storage Space Rental | $55/mo |
Trash Services - Hauling | $42/mo |
Utility - Billing Administrative Fee | $5.75/mo |
Administrative Fee | $400 |
Application Fee | $60 |
Holding Deposit (Refundable) | $250 |
Pet Deposit (Refundable) | $250 |
Pet Fee | $500 |
Satellite Dish Deposit (Refundable) | $100 |
Security Deposit (Refundable) | $250 |
Utility - Final Bill Fee | $17 |
Utility - New Account Fee | $17 |
Island Square is pet friendly and has in-unit washers and dryers. It lists 9 building amenities, including fitness center, patio/balcony, and air conditioning.
Air Conditioning (Building E Only)
Fitness Center
In-Unit Washer Dryer
Patio/Balcony
Pet Friendly
Quartz Counters
Smoke Free
Stainless Steel Appliances
Washer/Dryer
2758 78th Ave Se, Mercer Island, WA, 98040
Island Square is very walkable and bikeable, and transit is minimal.
Island Square is a 235-unit building in Mercer Island, WA.
Building
ApartmentTotal units
235The closest school to Island Square is Early World Montessori, a private elementary school 0.2 miles away. The closest public school is West Mercer Elementary School, 1 mile away.
| School | Type | Level | Distance |
|---|---|---|---|
Early World Montessori Private · Elementary | Private | Elementary | 0.2 mi |
Early World Montessori Private · Elementary | Private | Elementary | 0.2 mi |
American Academy Private · High | Private | High | 0.3 mi |
Creative Learning Center Private · Preschool | Private | Preschool | 0.3 mi |
Mercerview Community Center Private · Preschool | Private | Preschool | 0.4 mi |
Pebble Pre-School Private · Preschool | Private | Preschool | 0.6 mi |
Northwest Montessori School Private · Elementary | Private | Elementary | 0.9 mi |
Little Acorn Day School Private · Elementary | Private | Elementary | 1.0 mi |
Country Village Day School Private · Elementary | Private | Elementary | 1.0 mi |
West Mercer Elementary School Public · Elementary | Public | Elementary | 1.0 mi |
Island Square is managed by Greystar. The leasing office's phone number is (206) 644-5464.