Seattle Area Market Update | September 2025

Market Overview

As we entered fall, inventory across the Seattle metro area remained high, while prices held steady and buyer demand rebounded. September’s data paints a picture of a market adjusting — not softening.
Buyers have more options and time to decide, yet well-priced homes continue to attract quick offers, especially in sought-after Eastside and Mercer Island neighborhoods.

Eastside Market Snapshot

Key Takeaways:

• For Sale: 1,337 (+0.6% MoM | +58% YoY)

• New Listings: 833 (+27.4% MoM | +20.9% YoY)

• Median Sold Price: $1.57M (+1.1% MoM | +1.3% YoY)

• Avg CDOM: 38 days (up 18.8% MoM | up 81% YoY)

• Months of Inventory: 2.7 months (flat MoM | up 42.8% YoY)

📌 Summary:
Inventory is stabilizing at higher levels, giving buyers more choice and leverage. Homes are taking longer to sell, but pricing remains resilient. This is a balanced, strategic market.

King County Market Snapshot

Key Takeaways:

• For Sale: 4,278 (+2.9% MoM | +26.5% YoY)

• New Listings: 2,843 (+35.6% MoM | +15.2% YoY)

• Median Sold Price: $980K (-0.5% MoM | +2.1% YoY)

• Avg CDOM: 37 days (+15.6% MoM | +42% YoY)

• 🕰 Months of Inventory: 2.7 months (+8% MoM | +22% YoY)

📌 Summary:
King County remains active with rising new listings and modest price growth. Slightly longer market times reflect buyer caution rather than weakness. The market is healthy and more normalized.

Bainbridge Island Market Snapshot

Key Takeaways:

• For Sale: 66 (-13.2% MoM | -23.3% YoY)

• New Listings: 29 (-27.5% MoM | -19.4% YoY)

• Median Sold Price: $1.2M (-11.3% MoM | -18.5% YoY)

• Avg CDOM: 65 days (+27.5% MoM | +54.8% YoY)

• Months of Inventory: 1.9 months (+5.7% MoM | -47.4% YoY)

📌 Summary:
Inventory is tightening again on Bainbridge, driving competition for well-priced homes even as prices recalibrate from last year’s highs. The island remains a niche, high-demand submarket.

Mercer Island Market Snapshot

Key Takeaways:

• For Sale: 62 (+8.8% MoM | +24% YoY)

• New Listings: 39 (+56% MoM | -9.3% YoY)

• Median Sold Price: $2.7M (+27.9% MoM | +19.9% YoY)

• Avg CDOM: 38 days (+26.7% MoM | +111% YoY)

• 🕰 Months of Inventory: 2.8 months (-17.9% MoM | flat YoY)

📌 Summary:
Mercer Island saw a September surge in sales prices and listings. Luxury demand remains strong, with top-tier properties moving despite longer market times.

What This Means for You

For Buyers:
Inventory and longer days on market are giving you room to negotiate — but act strategically. If rates ease, competition will rise again this winter.

For Sellers:
Homes that show well and are priced right still move quickly. Presentation and timing are key to standing out amid growing supply.

For Brokers:
Encourage clients to stay data-driven. Market behavior varies sharply by submarket — local expertise and pricing precision are what win right now.