Mercer Island 98040
King County, WA · 7,471 properties · updated 7/5/2026
Should you buy here?buyer-timing lens
Buyer leverage is seller advantage; weigh payment burden and the 3-lens valuation before bidding.
Verdict grades housing conditions; buyer-timing, investor cash-flow, supply-tightness and county macro scores answer different questions — each in its own section.
Buyer / sellerbuyer-timing lens
Moderate buyer leverage in 98040. Room to negotiate 5-10% below list. Payment burden: 69.7% of median income. A 50% price correction needed to reach 30% affordability threshold. Median days on market: 60. Renting is approximately 530% cheaper than buying (price-to-rent ratio: 75.6).
Offer 5-10% below list. You have room to negotiate.
Market is holding steady with balanced conditions. Sellers are firmly in control. Prices down 1.7% YoY.
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Market snapshoteach number, once
Valuation3 lenses, different anchors
Affordability, supply & momentum
Supply and demand are roughly even — standard negotiation dynamics.