// Pricing
One flat price, by acreage.
No subscription. Your first draft is free.
Basic
Up to 5 acres
Standard
Over 5 to 10 acres
Professional
Over 10 to 20 acres
XL
Over 20 to 50 acres
Every plan includes
- Complete SWPPP, PDF and DOCX
- Site data filled in automatically
- RUSLE erosion calculation
- Annotated site map
- BMP sizing calculations
- Unlimited edits and re-exports
- Downloads for your whole team
NOI form for District of Columbia, Massachusetts, New Hampshire, New Mexico and Texas: +$149 with any plan.Over 50 acres or a portfolio of sites? Talk to us about Enterprise →
// How we compare
Siltworks vs. the alternatives.
A consultant writes the whole plan and bills for the weeks. Inspection apps log what’s already built. Siltworks produces the plan itself — fast, and in your hands.
| Capability | Siltworks | Consultant | Inspection SaaS |
|---|---|---|---|
| Complete SWPPP document (PDF + DOCX) | |||
| Auto-filled government site data | Manual | ||
| State-specific permit logic | Partial | ||
| Turnaround | Minutes | 1–2 weeks | N/A |
| Ongoing inspection logging | Roadmap | ||
| Typical cost | From $199 | $2,500–6,500Argent | From $12/site/mo |
| No subscription required |