The stamped drawings, calculations, and approvals that allow a project to get built — prepared by a NYS licensed Professional Engineer.
The site plan is not a rough layout. It is a stamped legal document that defines every dimension, elevation, grade, drainage calculation, and utility connection on the project. If it is wrong, or incomplete, or unsigned — the project stops. No building permit is issued. No contractor can legally break ground.
That stamp belongs to a NYS Licensed Professional Engineer who has reviewed the design, certified the calculations, and accepted professional and legal responsibility for every sheet. It is not a rubber stamp — it is the engineer's license and livelihood on the line with every project.
Only a NYS Licensed Professional Engineer can stamp and seal site plan drawings. That stamp is your legal assurance that the design meets code, standards, and engineering judgment — and it's what every reviewing agency requires.
Every town, village, and county in New York State requires a full stamped site plan set before a Planning Board will consider a site plan application. Without it, there is no application to review.
A site plan set isn't just for approvals — it's what the contractor builds from. Vague drawings and missing dimensions mean the contractor makes guesses. Guesses in the field mean change orders, delays, and disputes at the worst possible time.
A civil engineering package for a typical site development project in New York State includes the following sheets. Each one requires engineering judgment, calculations, and precision — not estimation.
Sheet Contents
Project summary, legal description of the parcel, engineer of record information, applicable codes and standards, construction specifications, and material requirements. Sets the legal and technical framework for the entire drawing set.
Why It Matters
Every reviewer — the town engineer, Planning Board, contractor, and building inspector — starts here. If the project information, legal description, or specification standards are incomplete, the set gets rejected before anyone looks at the design drawings.
Sheet Contents
Survey-based map of everything currently on the site: existing structures, grades and contours, underground and overhead utilities, trees over a specified caliper, wetlands, floodplain boundaries, and adjacent property features.
Why It Matters
The baseline everything else is designed from. Errors here propagate through every subsequent sheet. This is why the existing conditions plan must come from a licensed survey — not from aerial imagery, county GIS, or an owner's sketch.
Sheet Contents
Proposed building footprint, parking lot geometry, drive aisles, ingress/egress points, sidewalks, accessible routes, setback lines, easements, and all horizontal dimensions. Every line and dimension is calculated to meet zoning requirements.
Why It Matters
The layout plan is the primary document Planning Boards review at hearings. It defines exactly what is being built, where, and how it relates to the lot boundaries, road, and adjacent properties. Ambiguous dimensions or missing setback compliance annotations result in continuances.
Sheet Contents
Proposed contours, spot elevations, swales, catch basins, storm sewer pipe layouts, detention or retention facilities, overland flow paths, and finished floor elevation. Includes drainage calculations verifying the system performs under design storm events.
Why It Matters
New York State municipalities and the DEC require engineered drainage design. This sheet proves that runoff from the developed site will not increase off-site flow rates or volumes beyond pre-development conditions. Without the supporting calculations, it is not approvable.
Sheet Contents
Water service routing, sanitary sewer lateral and connection point, storm sewer routing, gas service, and electric/telecom conduits. Includes utility provider coordination notes and service connection details. Underground utility conflicts are identified and resolved on this sheet.
Why It Matters
Conflicts between underground utilities discovered in the field — after excavation has started — generate costly change orders and project delays. Every potential conflict resolved on paper costs nothing to fix. Every one discovered in the field can cost thousands.
Sheet Contents
Required by NYSDEC for any land disturbance over one acre. A standalone document — often 50 or more pages — covering construction-phase stormwater practices: silt fence, inlet protection, stabilized construction entrances, sequencing, inspection schedules, and post-construction controls.
Why It Matters
This is not a form. The Stormwater Pollution Prevention Plan requires signed certifications from the owner, engineer, and each contractor. NYSDEC has enforcement authority. An incomplete or missing SWPPP can result in stop-work orders and significant fines during construction.
Every sheet in this set carries the engineer's professional seal. That seal is not cosmetic — it is a legal certification that the content is technically accurate and professionally responsible. There is no shortcut around it.
Civil engineering engagement deliverables for a typical New York State site plan approval project. Each document is a professional, agency-ready product — not a draft, not a sketch.
Stamped & Sealed Site Plan Drawing Set
Signed and sealed by a NYS Licensed Professional Engineer — the only document type municipalities and contractors can legally build from.
Stormwater Pollution Prevention Plan (SWPPP)
Full NYSDEC-compliant document with all required certifications, required for any disturbance over 1 acre.
Drainage Calculations Report
Supporting engineering calculations for all stormwater facilities — pre- and post-development hydrology, pipe sizing, and detention volume.
Agency Submission Packages
Compiled and formatted application materials for each agency: Planning Board, Monroe County DOT, NYSDEC, and others as required.
Hearing Presentation Materials
Project narrative, colored exhibits, and meeting-ready materials for Planning Board and ZBA presentations.
Approved Permit Set for Construction
Final stamped drawings with all agency approval endorsements — what the contractor builds from.
Penfield, NY
Site plan approval for a 4,800 SF professional office building on a 1.2-acre parcel — full drawing set through Planning Board approval.
Monroe County, NY
New 6,200 SF retail pad site on a vacant parcel with full utility extensions, shared access, and county road improvements.
Webster, NY
Adaptive reuse and site reconfiguration for a mixed-use commercial and residential project requiring full civil engineering and stormwater redesign.
Contact us for a no-obligation consultation. We'll tell you what your project needs, who it needs approval from, and what the realistic timeline looks like.