Published October 4, 2026 in Market Update

Fairfax sales rose even as inventory stayed tight

By Elizabeth Sachero-Perez

Real estate, Fairfax

Thinking about what is happening in Fairfax right now? Here is the one thing that matters most for homeowners. Buyers are still active, even with higher borrowing costs. Realtor.com reported that mortgage rates topped 7% for the first time since January 2025. Yet the Real Estate Data Aggregator counted 797 homes sold across Fairfax in the three months ending July 31, 2026. That is up 6.7% from the same months a year before. Pricing and preparation still matter here.

Supply is still tight. The Real Estate Data Aggregator counted only 379 homes for sale across Fairfax during that same period. That is up 5.6% from a year before, so a little more choice than last year. But 379 homes spread across a market that closed 797 sales is still a lean supply. When supply is lean, how you price and present your home shapes your outcome.

What the rate environment means for Fairfax sellers

CNBC reported the average contract rate on a 30-year fixed mortgage at 7.30% as of September 30, 2026. Nationally, Realtor.com noted that price cuts hit 20.8% of listings in September, the highest share since October 2022. That is worth knowing. Fairfax is not immune to rate pressure. But the local sales count and pending pipeline tell a different story than the national headlines.

The Real Estate Data Aggregator counted 725 pending sales across Fairfax in the three months ending July 31, 2026. That is up 3.3% from the same months of 2025. Buyers are still writing contracts. The pipeline is moving.

How each ZIP code read differently

The Fairfax total is useful, but each ZIP code tells its own story. Here is what the Real Estate Data Aggregator found for the three months ending July 31, 2026.

ZIP 22032 had the highest median sale price at $900,000, up 3.3% from a year before, according to the Real Estate Data Aggregator. It also had the fastest median pace at 21 days on market, 5 days shorter than the same period last year. Sales volume there rose 14.4%. That is a meaningful jump.

ZIP 22031 saw the largest price dip. The Real Estate Data Aggregator put the median sale price there at $735,000, down 10.4% from a year before. Sales volume also fell 6.8%. But here is the other side: more than half of homes in 22031 sold above list price, 50.5%, up 12.9 points from a year before. Buyers competed even as prices adjusted. That tells you pricing matters more than ever in that ZIP.

ZIP 22039 is worth a close look. The Real Estate Data Aggregator counted only 21 homes for sale there, down 34.4% from a year before. Sales volume rose 38.7%. The months of supply fell to 0.7. And 70.8% of homes went under contract within two weeks of listing. The median sale price was $1,250,000, nearly flat from a year before at down 0.4%. When supply drops that sharply and sales jump that much, well-prepared homes tend to perform.

ZIP 22015: more sales, prices down a little

ZIP 22015 had the most homes sold of any single ZIP in this market. The Real Estate Data Aggregator counted 184 sales there in the three months ending July 31, 2026, up 6.4% from a year before. The median sale price was $700,000, down 8% from a year before. That is an honest dip worth knowing. But 58.7% of homes there sold above list price, and 71.2% went under contract within two weeks of listing, up 5 points from a year before. Buyers moved quickly even as prices adjusted.

Speed: how fast did homes sell?

Across Fairfax, the Real Estate Data Aggregator shows homes selling faster than a year before in most ZIPs. ZIP 22032 led at 21 days. ZIP 22031 was close at 24 days. ZIP 22033 came in at 23 days, 5 days shorter than the same period last year. ZIP 22039 and ZIP 22015 both sat at 25 days, unchanged from a year before. ZIP 22030 was the slowest at 28 days, though still 5 days shorter than a year before.

What sellers should take from this

The Federal Housing Finance Agency reported that U.S. house prices rose 2.6% from July 2025 to July 2026. Fairfax is part of that broader picture, but each ZIP moved differently. Some prices dipped. Some rose. Some held flat. What stayed consistent across Fairfax is that well-priced homes moved quickly and often sold above list price. The Real Estate Data Aggregator shows sale-to-list ratios above 100% in every ZIP in this market for the three months ending July 31, 2026.

ZIP 22039 led at 102.8%, up 1.1 points from a year before. ZIP 22015 came in at 101.9%. Every ZIP in this market averaged above list price. That does not happen in a soft market. It happens when buyers are competing and inventory is lean.

One thing to keep in mind

These numbers cover the three months ending July 31, 2026. Conditions can shift, and Realtor.com noted that price cuts nationally hit their highest share since October 2022 in September. The Fairfax market has held up well, but one street can read very differently from the ZIP code average. Preparation, pricing, and timing still shape individual outcomes.