Summary answer: On a $700,000 home in Chantilly with 10% down at today's rates (~6.65%), expect a total monthly payment of roughly $5,070-$5,120 including principal, interest, property taxes, insurance, and PMI. This is a highly realistic scenario for Chantilly, sitting right around the area's own median.
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The full breakdown
| Cost Component | Estimated Monthly Amount |
|---|---|
| Principal & interest (10% down, $630,000 loan, 6.65%) | ~$4,053 |
| Property tax ($700K home, $1.1225/$100) | ~$655 |
| Homeowners insurance | ~$150 |
| PMI (10% down) | ~$215-$260 |
| Total | ~$5,073-$5,118 |
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