Union County Fall Housing Market Update 2025: Prices Up, Listings Increasing, and Buyer Activity Steady

September and October wrapped up another strong stretch for the Union County fall housing market. Prices have come down a bit since summer but are still higher than last year. Homes are selling quickly, often over list price, and buyers are staying active.

Mortgage rates also dropped this fall, which has helped fuel continued demand and likely been the trigger for a surge in new listings.

Key Union County Fall Housing Takeaways (September–October 2025)

• Average Sale Price:

  • September: $801,684 (+6.8% year-over-year)

  • October: $751,371 (+4.8% year-over-year)
    Prices remain above last year’s levels despite the expected seasonal dip from summer highs.

• Sale-to-List Price Ratio: Approximately 104% for both months — showing that most homes are still selling for over asking.

• Days on Market: 26–31 days — properties are continuing to move quickly.

• New Listings: Up 25% compared to last fall — a welcome increase in fresh options for buyers.

What to Expect Heading into the Holidays

Although many people assume the real estate market slows to a crawl during the holidays, the data tells a different story. Over the past two years, average prices in Union County have actually increased from October through December. This is largely due to limited supply and pent-up buyer demand for new options.

There will likely be fewer new listings in November and December, but well-priced homes should continue to move quickly. Lower rates and ongoing demand are helping offset low inventory.  I’ll be watching closely.

Union County Fall Housing Highlights By-Town

Many Union County towns have posted double-digit growth in average home sale prices this year, with the strongest gains coming out of Fanwood and Mountainside, both up 18% year-to-date. Cranford, Scotch Plains, and Summit have also seen impressive double-digit increases compared to 2024.

For October specifically, most towns settled into single-digit year-over-year growth — a typical seasonal pattern — but Mountainside continues to stand out, with the average home sale price up 26% from last October.

Below is a quick recap by town.

See the full market breakdown, including detailed individual home sales, here:
Union County Market Reports

Final Thoughts

The Union County housing market is still on the rise. Prices are up from last year, homes are selling quickly, and more listings are hitting the market than we saw last fall. As we head into the holiday season, limited inventory and a small drop in mortgage rates should keep things active for both buyers and sellers.

If you’re curious how these trends might impact your own plans, I’d love to chat and share what’s happening in your neighborhood.  Let’s connect!