Why the site work belongs on one schedule
When four crews each handle a piece, the pieces fight. Clearing done months early leaves bare ground washing away. A drain installed before the grade is set ends up at the wrong depth. A water line trenched across a finished pad means compacting it all over again. Planned as one job, the clearing runs just ahead of the grading, storm pipe goes in at the elevations the grading creates, and utility trenches are dug before the final pass.
The finished grade decides a lot underground. Sewer depth, storm pipe inverts and where water lines cross all depend on the final elevations, so those get settled on paper before anyone digs.
Small lots inside a bigger plan
Tennessee’s construction stormwater permit starts at one acre of disturbance, but acreage alone doesn’t settle it. TDEC’s permit also covers a site under an acre when it’s part of a larger common plan of development or sale that totals an acre or more. Lots in a subdivision being built out one at a time can fall inside that common plan even though each lot is small.
Phasing a large tract
The same permit recommends phasing on every project regardless of size, and keeping the total disturbed area under 50 acres at any one time. In practice that means clearing and grading in sections, getting each one stabilized, and moving on, instead of opening the whole property at once. It costs some efficiency in moving machines around and leaves far less bare ground for a storm to work on.
Tennessee’s $25,000 license line
Tennessee’s Board for Licensing Contractors requires a contractor’s license before a prime contractor bids on a project of $25,000 or more, materials and labor included. Development budgets pass that figure quickly, which is worth keeping in mind when you set up who holds the contract for the site work.
What it takes to plan the job
The survey and the civil plans, if they exist. If they don’t yet, the boundary, what you mean to build and roughly where. From those, the clearing limits, the cut and fill, the drainage paths and the utility routes can be laid out in one sequence and priced together.
Where the land sits matters as well. Inside Metro, in a city with its own engineering office, or out in a county, the permit office is different each time, and its review goes on the schedule the same as the machines do.