Summary answer: On a $700,000 home in Centreville with 10% down at today's rates (around 6.65%), expect a total monthly payment of roughly $4,940–$5,240 including principal, interest, property taxes, insurance, and PMI. That's meaningfully more than the "principal and interest only" figure most calculators show — and if it's in an HOA community, dues stack on top separately.
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The full breakdown
| Cost Component | Estimated Monthly Amount |
|---|---|
| Principal & interest (10% down, $630,000 loan, 6.65%) | ~$4,050 |
| Property tax ($700K home, $1.1225/$100) | ~$654 |
| Homeowners insurance (estimate) | ~$150 |
| PMI (10% down, conventional) | ~$220–$260 |
| Total (no HOA) | ~$5,075–$5,115 |
| HOA dues (if in Sully Station or Virginia Run) | +$70–$150 |
Why the "principal and interest" number understates your real cost
A lot of online calculators only quote P&I — around $4,050/month in this example. That understates your actual obligation, where property taxes alone add roughly $654/month and PMI (if under 20% down) adds another $220-plus.
How your down payment changes this
- 20% down — eliminates PMI, saving $220–$260/month, but requires $140,000 upfront on a $700K purchase
- VA loan, 0% down — no PMI regardless of down payment, but a higher loan amount since you're financing the full price
- 5% down — lowers upfront cash need but increases both loan amount and PMI cost versus 10% down
If it's in an HOA community
Centreville's HOA fees are relatively modest compared to condo buildings closer to DC — typically $70–$150/month for communities like Sully Station, versus the $300–$600+ seen in urban condo buildings. This is a real advantage for Centreville buyers targeting an HOA community.
Get your exact number
These are solid estimates, but your actual payment depends on your specific rate, loan type, and property. Reach out once we've identified a target property and I'll run your real numbers.
For more Centreville buyer and seller questions, visit our Centreville real estate hub.