Union City Real Estate Market Report — May 2026 | Median Prices, Inventory & Trends

Union City stayed firmly on the seller's side of the table in May 2026. The typical home sold for $1,340,000, closed at 103.5% of its asking price, and went under contract in a median of just 13 days — all while supply held tight at 2.67 months. Here is the complete picture, recreated from the Bay East Association of REALTORS® and RPR market-trends data, with a free six-page PDF you can download and keep at the end.

May 2026 at a glance

Union City, CA · Single-family, condo & townhouse · Median sold price $1,340,000 · Sold-to-list 103.5% · Median 13 days on market · 2.67 months of inventory · 58 new listings · Median estimated value $1,409,000

The interactive dashboard below walks through every number — the median sold price, the months-of-supply gauge, the full metric grid, and the twelve-month chart of sales against active listings.

What the numbers are telling us

It is still a seller's market, but a calmer one. Months of inventory finished May at 2.67. Anything under three months is the classic marker of a seller's market — there are simply more ready buyers than there are homes to go around. That said, inventory is up 14.6% from a year ago, so the frantic, no-contingency pace of past springs has eased into something more workable for buyers, even as sellers keep the edge.

Buyers are still paying over asking. A sold-to-list ratio of 103.5% means the typical Union City home closed about 3.5% above its list price. Combine that with a median of 13 days on market and the message is clear: well-prepared, well-priced homes are still drawing competitive, fast offers.

Sellers are asking more on fresh inventory. The median list price on brand-new May listings jumped 7.7% to $1,398,500, while the median *closed* sale settled at $1,340,000. The narrow gap between the two is exactly what you expect when demand outweighs supply.

Estimated values have softened slightly. The median estimated home value sits at $1,409,000, down 0.8% for the month and 3.7% over the past year. Day-to-day sales stayed strong even as the broader valuation eased — a reminder that pricing to the live market still matters more than any single headline number.

Prices across the pipeline

Here is where prices sat at each stage of the market in May 2026:

Active-listing medians run lower than new listings and closed sales because longer-sitting inventory tends to be priced more conservatively.

Supply and demand through the year

Active listings swung from a low of just 20 homes in December 2025 up to 72 by May 2026 as the spring market opened. Closed sales, meanwhile, held remarkably steady in the 17-to-40 range all year. In other words, even as more homes came up for sale, buyer demand kept absorbing them — which is why months of supply stayed under three.

Get the full report, free

I put the entire month into a clean, printable six-page PDF: every median price, the months-of-supply gauge, the twelve-month sales and active-listing chart with the complete data table, the five-year trend lines, and a long-run value comparison of Union City against Alameda County, California, and the nation.

Thinking about a move in Union City?

A market report tells the story of the whole city. To know what it means for your specific home or your next purchase, let's talk. I will put together a true, address-specific opinion of value based on the homes actually selling on your street — no pressure, no obligation. Call or text me at (510) 600-3425, or email homes@HarvRealtor.com.

**Not a guarantee.** Market figures are from the Bay East Association of REALTORS® and Realtors Property Resource® (RPR®), deemed reliable but not guaranteed, and are not a prediction of future value. They describe the broader Union City market and may not reflect any individual home. Harv Balu, REALTOR® (CA DRE #02195792) · REALTY EXPERTS® (CA DRE #00414413). Equal Housing Opportunity.