Quick answer: In 2026, a land disturbance permit (LDP) in Metro Atlanta typically costs $1,500 to $7,500 in county fees plus $7,500 to $75,000 in engineering fees, and takes 45 to 120 days from submittal to permit issuance. Costs and timelines vary significantly by county, project size, and stormwater complexity. Georgia SB 447 now imposes a 45-day statutory review deadline for LDP applications submitted to local governments.
If you are a developer, builder, or property owner planning site work anywhere in Metro Atlanta in 2026, the land disturbance permit is the single line item that most often blows up your schedule and your budget. This guide breaks down the actual dollar cost, the actual review time, and the actual triggers county-by-county — based on current 2026 fee schedules and the LDPs Mack Engineering has walked through the review process this year.
What Is a Land Disturbance Permit in Georgia?
A land disturbance permit (LDP) is the local-government approval required before you can grade, clear, or otherwise disturb one acre or more of land in Georgia. Some jurisdictions trigger LDP requirements at a lower threshold (as little as 5,000 square feet in stream buffers or on steep slopes), and any project disturbing one acre or more also triggers the state-level NPDES Construction General Permit through the Georgia EPD.
An LDP is not the same thing as a building permit. Vertical construction — footings, walls, structures — cannot begin until the LDP is approved AND the building permit is issued. In most Metro Atlanta counties, the LDP must be issued first.
The 45-Day Deadline: Georgia SB 447
Georgia Senate Bill 447, signed into law in 2024 and effective in 2025, requires local governments to issue a decision on a complete land disturbance permit application within 45 days of submittal. If the reviewer requests corrections, the clock pauses and restarts on resubmittal. If the local government fails to act within the deadline, the applicant has statutory grounds to escalate.
In practical terms, SB 447 does not mean your permit will be issued in 45 days. It means the county cannot sit on a complete application indefinitely. The most common way projects still lose time is through incomplete submittals — plans that trigger a “kick-back” and restart the clock. This is where an experienced civil engineer earns their fee: a first-submittal-complete plan set is worth more than any square-foot discount.
2026 Land Disturbance Permit Municipal Cost by County
The numbers below reflect standard fee schedules for single-family and small commercial LDPs in 2026. Larger projects, phased developments, and projects with variance requests will exceed these ranges. Always confirm current fees directly with the county before budgeting.
| County | Base LDP Fee | Per-Acre Fee | Typical Review | Notes |
| Fulton County (unincorporated) | $500 min | $50–$100/ac | 45–75 days | Separate stormwater review; buffer coordination |
| Forsyth County | $400 min | $40/ac | 30–60 days | Strict subdivision LDP checklist; as-built required |
| Cherokee County | $500 min | $50/ac | 45–90 days | Steep-slope trigger at 25%; ridgeline overlay |
| Cobb County | $600 min | $60/ac | 45–75 days | Trip generation review on commercial projects |
| Gwinnett County | $500 min | $50/ac | 30–60 days | Strong electronic submittal process |
| DeKalb County | $750 min | $75/ac | 60–120 days | Longest typical review in Metro |
| City of Alpharetta | $450 min | $45/ac | 30–60 days | UDC compliance in Avalon / North Point overlays |
| City of Milton | $500 min | $50/ac | 45–75 days | Rural preservation overlay adds review depth |
| City of Roswell | $500 min | $50/ac | 45–75 days | Historic overlays require extra coordination |
| City of Johns Creek | $500 min | $50/ac | 30–60 days | Fastest of the North Fulton cities in 2026 |
| City of Canton | $400 min | $40/ac | 45–75 days | Water & sewer availability drives timeline |
Engineering Fees: What the LDP Design Actually Costs
The county fee is the smaller half of your permit cost. The engineering fee — grading plan, erosion and sediment control (ES&PC) plan, stormwater design, hydrology report, utility plan, and construction detail sheets — is what actually gets the permit approved. In 2026 across Metro Atlanta:
- Single lot / infill (under 1 acre): $3,000 to $12,000+ in engineering fees.
- Small subdivision (2 to 10 lots): $8,000 to $26,000+ in engineering fees.
- Medium subdivision (10 to 50 lots): $25,000 to $80,000+ in engineering fees.
- Small commercial site (under 5 acres): $10,000 to $25,000+ in engineering fees.
- Industrial / warehouse site (5 to 30 acres): $55,000 to $90,000+ in engineering fees.
The 6 Most Common Reasons LDPs Get Rejected on First Submittal
- Stormwater detention volumes do not match the runoff calculations. The plan and the hydrology report must reconcile.
- Erosion and sediment control (ES&PC) plan is missing the required Level II certified designer stamp or an outdated BMP detail.
- State waters buffers (25-foot state / 50-foot local in many jurisdictions) are shown incorrectly or missing entirely.
- Utility coordination letters (water, sewer, gas, power) are missing or expired.
- Geotechnical report and soil test data do not support the stormwater infiltration or detention design assumptions.
- As-built survey certification block or NPDES coverage acknowledgment is missing from the cover sheet.
How to Cut LDP Review Time from 90 Days to 45
The two levers that actually move review time are (1) submitting a complete first-cycle plan set and (2) requesting a pre-submittal review meeting with the county before formal submittal. Every Metro Atlanta county listed above allows pre-submittal meetings, and most will do them at no charge. This is the single highest-leverage move a developer can make on schedule.
The second lever is knowing your reviewer. Forsyth, Cherokee, and North Fulton counties each have specific plan reviewers who see the same recurring mistakes every week. An experienced civil engineer working in a specific jurisdiction knows exactly which comments each reviewer flags. This is why local jurisdiction experience is not a marketing claim — it is a measurable reduction in your review cycles.
Frequently Asked Questions
How much does a land disturbance permit cost in Metro Atlanta in 2026?
County LDP fees range from about $400 to $750 base plus $40 to $100 per acre, depending on the jurisdiction. Total permit cost including engineering typically runs $5,000 to $20,000 for a small subdivision and $30,000 to $100,000+ for a mid-sized commercial or industrial site.
How long does a land disturbance permit take in Georgia?
Georgia SB 447 requires local governments to act on complete LDP applications within 45 days. Realistic timelines from first submittal to permit issuance range from 45 days in fast counties like Johns Creek and Gwinnett to 120 days in slower jurisdictions like DeKalb, especially if the first submittal is incomplete.
What is the difference between an LDP and a building permit?
A land disturbance permit authorizes site grading, clearing, and infrastructure work. A building permit authorizes vertical construction of the structure itself. The LDP must be issued (and in most cases site work started) before the building permit is released.
Do I need an LDP for a single-family home lot?
Not usually, if the disturbance is under one acre and outside any regulated buffer or steep-slope overlay. A house-location plan and lot-grading plan may still be required. Confirm with the specific jurisdiction — Forsyth and Cherokee counties have specific single-lot triggers.
Can I appeal if the county misses the 45-day SB 447 deadline?
Yes. SB 447 creates a statutory basis to escalate. The practical route is a written notice to the county administrator citing the statute, followed by legal action if unresolved. In our experience, a properly-cited written notice resolves the issue in almost every case.
Get a Fixed-Fee LDP Quote for Your Metro Atlanta Site
Mack Engineering is a Georgia-registered Professional Engineering firm based in Alpharetta. We provide civil engineering, land development, and stormwater design services across Metro Atlanta and North Georgia. Every LDP submittal we produce is designed for first-cycle approval, with pre-submittal county coordination included in the base fee, opposed to being a surprise at the end of the project with endless review cycles of comments. Call (770) 715-7295 or use our Contact page for a fixed-fee LDP quote scoped to your specific site.