The statute defines a broad profession but a specific assignment
Section 5 of the Illinois Professional Land Surveyor Act includes establishing and retracing property boundaries, monumenting them, preparing descriptions, and issuing maps, plats, reports, and certifications tied to real-property lines.
Section 5 also says those functions are not automatically part of a job unless the licensee specifically contracts to perform them. A request for a survey therefore should not rely on the word alone. List the decision and each needed deliverable in the proposal.
Necessary entry has a limited statutory protection
Section 45 of the Act protects an Illinois professional land surveyor and supervised survey party from civil or criminal trespass when entry onto other land is necessary in the course of making a survey. The section leaves the surveyor liable for actual damage.
Section 45 protects the survey party's necessary entry; it does not authorize the homeowner or contractor to enter adjoining property. If off-site monument recovery may be needed, ask the survey firm how access, identification, and property protection will be handled.
Build the estimate around the outcome
The contracted-function rule in Section 5 of the Illinois Professional Land Surveyor Act makes these outcome-specific scope choices material.
| Outcome | Put this in the scope |
|---|---|
| Fence or wall | Boundary conclusion, corners, and the specific line or offset stakes needed by the installer. |
| Purchase or title review | Boundary, relevant improvements, title exceptions supplied to the surveyor, and the required certification. |
| New parcel or subdivision | Boundary and plat work coordinated with municipal or county review and recording. |
| Neighbor disagreement | Focused retracement of the disputed line and documentation of conflicting evidence. |
Verify the Illinois professional
The Illinois Department of Financial and Professional Regulation regulates professional land surveyors and provides license resources. Verify the responsible PLS and ask which parts of the work are performed under that person's direct supervision and control.
Find firms in the Illinois land surveyor directory. This guide explains project scope and does not provide legal advice about access, title, or ownership.