Chantilly sales rose even as more listings gave buyers a little more room
More homes sold in Chantilly this summer. At the same time, more homes were available to buy. That combination tells a clear story: steady activity, with a little more breathing room than last year.
The Real Estate Data Aggregator counted 200 homes sold across Chantilly's two ZIP codes in the three months ending July 31, 2026. That is up 7.5% from the same months of 2025. Inventory rose 19.4% over the same period, to 123 homes for sale. Buyers had more to look at. Sellers still found buyers.
Nationally, Realtor.com reported 1.16 million active listings in September 2026. That is the most supply the country has seen in years. Chantilly's own inventory rise fits that wider trend. More choice does not mean prices are falling apart here. It means the balance has shifted a little.
The two ZIP codes tell different stories
Chantilly sits across two ZIP codes, 20151 and 20152, and they moved in different directions this summer. Knowing which one your home is in matters.
| 20151 | 20152 | |
|---|---|---|
| Median sale price | $692,500 | $905,000 |
| Price change vs. last year | Down 0.4% | Up 19.1% |
| Homes sold | 98 | 102 |
| Median days on market | 40 days | 29 days |
| Sold above list price | 38.8% | 45.1% |
| Under contract within two weeks | 53.9% | 60.7% |
ZIP 20151: steady sales, prices roughly flat
The Real Estate Data Aggregator counted 98 homes sold in ZIP 20151 in the three months ending July 31, 2026. That is up 10.1% from a year before. The median sale price came in at $692,500, down just 0.4% from the same period of 2025. Prices dipped a little, but sales volume rose. That is not a sign of trouble. It is a sign that well-priced homes are still moving.
Homes in 20151 took a median of 40 days to sell. That is 9 days longer than a year ago. Buyers had a bit more time to decide. Still, 53.9% of homes went under contract within two weeks of listing, up 1 point from last year. The homes priced right moved fast. The ones that did not took longer.
The average sale price in 20151 came in at 100.6% of list price. That is up 0.8 points from last year. Sellers are still getting full price, on average. Months of supply fell to 1.5, down 0.2 months from a year before. That is a low number. It means competition among buyers has not gone away.
ZIP 20152: prices jumped, and so did inventory
ZIP 20152 told a different story. The Real Estate Data Aggregator put the median sale price at $905,000 in the three months ending July 31, 2026. That is up 19.1% from the same months of 2025. Sales rose too, with 102 homes sold, up 5.2% from a year before.
Inventory in 20152 grew sharply. The Real Estate Data Aggregator counted 75 homes for sale, up 38.9% from a year before. New listings rose 7.4% to 131. More supply arrived. Yet buyers absorbed it. Pending sales climbed 7.7% to 112 homes.
Homes in 20152 sold in a median of 29 days, 2 days faster than a year ago. Nearly 45.1% sold above list price, up 14.2 points from last year. And 60.7% went under contract within two weeks of listing. Buyers in this ZIP moved quickly when they found the right home.
What the national picture adds
Mortgage rates are not helping buyers right now. CNBC reported the average contract rate for a 30-year fixed mortgage at 7.30% as of September 30, 2026. Mortgage News Daily put it even higher, at 7.58% on that same day. Realtor.com noted that rates surged above 7% for the first time since January 2025.
Higher rates slow some buyers down. That may partly explain why 20.8% of listings nationally saw price cuts in September 2026, the highest share since October 2022, according to Realtor.com. In Chantilly, the sale-to-list ratios stayed above 100% in both ZIP codes. That suggests local sellers priced carefully and buyers still competed.
The Federal Housing Finance Agency reported that U.S. house prices rose 2.6% from July 2025 to July 2026, and 0.3% from the prior month on a seasonally adjusted basis. Chantilly's 20152 outpaced that national figure by a wide margin. ZIP 20151 came in just below it.
Speed: how fast did homes move?
More than half of all homes in both ZIP codes went under contract within two weeks of hitting the market. That is a meaningful number. It tells sellers that preparation and pricing still drive results. It tells buyers to be ready to move when the right home appears.
- Chantilly sold more homes this summer than last, with 200 sales across both ZIP codes, up 7.5%.
- Inventory rose 19.4%, giving buyers a bit more choice.
- ZIP 20151 saw prices hold nearly flat at $692,500, while 20152 jumped to $905,000, up 19.1%.
- Homes that were priced right still sold fast, often above list price.
- Nationally, rates above 7% are making buyers more careful.
- Chantilly's numbers, for the three months ending July 31, 2026, show a market that is active and balanced, not tilted sharply in either direction.
One last thing. The numbers above cover whole ZIP codes. One street, one building, or one price range can read very differently from the ZIP code average. If you want to know what the data shows for your specific address, reach out. I am happy to walk you through it.
Your next step
(703) 774-7448Text me your address and I will send back what your Chantilly home is worth, against what homes near you actually sold for in the three months ending July 31, 2026. Takes a day, costs nothing.
Text me- Real Estate Data Aggregator numbers for ZIPs 20151 and 20152, the three months ending July 31, 2026, compared with the same months of 2025. Real Estate Data Aggregator last updated them on Sep 3, 2026.
- Federal Housing Finance Agency: FHFA House Price Index® Up 0.3 Percent in July; Up 2.6 Percent from Last Year | FHFA, Sep 29, 2026
- Redfin: Redfin Reports U.S. Home Prices Rose 0.25% From a Month Earlier in August, Sep 22, 2026
- Realtor.com: September 2026 Monthly Housing Trends: Price Cuts Hit 4-Year Highs as Mortgage Rates Top 7%, Sep 30, 2026
- Realtor.com: August 2026 Rental Report: Rents Fall for 37th Straight Month as Concessions Give Renters More Leverage, Sep 17, 2026
- CNBC: Mortgage rates jump for the sixth straight week, hitting both refinance and homebuyer demand hard, Sep 30, 2026