Fairfax County · Chantilly
The median sale price, $699,999, is 14% below Fairfax County's median of $812K. Prices were down 2.6% from a year earlier. Homes took 24 days on average to go under contract, slower than the county (20 days), the 13th-slowest of 40 Fairfax County ZIP codes with enough sales to compare. Sellers received 100.2% of their original asking price — close to asking.
Balanced
Median sale price, Q2 2026
Source: Bright MLS Industry Watch, Q2 2026 (data as of July 10, 2026). Figures cover the part of the ZIP code inside Fairfax County.
Homes listed for sale in 20151,
Realtor.com residential listings data · updated monthly · See the Price-Cut Index
Monthly listing numbers for 20151 load here from Realtor.com data. I can also pull today's listings from Bright MLS for you.
All of Fairfax County in September 2026: 2,456 homes for sale (+26% vs. a year ago), 41% with a price cut, 36 median days on market.
On the median $699,999 home, that's about $8,074 a year before any town or district tax. Bills are due July 28 and Dec. 5.
The tax on a listing is the current owner's bill, which may include senior tax relief that ends when they sell. Work out a home's real tax →
Balanced. Homes sold close to their first asking price at about the county's pace. Pricing and condition decide who has the edge.
Before you fall in love
Homes near Dulles can sit inside the airport noise contours in Fairfax County's zoning map. Virginia sellers make no promises about airport noise.
Fairfax County airport noise ↗Fairfax County approved its first full school-boundary redraw in about 40 years on Jan. 22, 2026. About 1,700 students were reassigned starting this school year, phased in by grade. School information on a listing may be out of date — check the exact address.
Check the address in FCPS Boundary Explorer ↗Land within 100 feet of many streams is a Resource Protection Area. Adding a deck, an addition or clearing trees there needs a county exception with a public hearing — often 3+ months. Fairfax County's new FEMA flood maps are still being finalized.
Fairfax County RPA questions ↗Every home also pays a stormwater tax ($0.0325) and pest levy ($0.001) per $100. Some neighborhoods add a leaf-collection tax ($0.019) or a $630 yearly trash fee.
Work out your real tax bill →Under Virginia's disclosure law the seller makes no promises about the home's condition, flood zones, airport noise, septic or radon. Inspections and your own checks protect you.
Virginia Code § 55.1-703 ↗Nearby
All 61 Northern Virginia ZIP codes → · Where prices are being cut →
Questions people ask
Homes in Chantilly, VA 20151 sold for a median of $699,999 from April–June 2026, down 2.6% from a year earlier (Bright MLS). Fairfax County's median was $812,000.
Homes took 24 days on average to go under contract in Q2 2026, compared with 20 days across Fairfax County. Sellers received 100.2% of their original asking price.
Based on Q2 2026 sales, 20151 is a fairly balanced market. Homes sold close to their first asking price at about the county's pace. Pricing and condition decide who has the edge. Conditions change street by street, so ask me for the latest Bright MLS numbers before you price or offer.
Most of 20151 is in Fairfax County, where the 2026 rate is $1.1535 per $100 of assessed value, about $8,074 a year on a $699,999 home. Bills are due July 28 and Dec. 5.
Check the school boundary for the exact address, the flood map, any HOA rules and fees, and planned roads or buildings nearby. I check these for every home we look at.
Contact
Tell me a little about what you're looking for. I'll reply personally, usually within one business day.
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