Ground-Up Residential Site Planning Software for New Construction

Planning a new construction home from the ground up requires far more than choosing a floor plan. Before a single foundation is poured, the land itself must be thoroughly analyzed to determine what can legally and physically be built on it. A construction site plan documents how a proposed structure relates to its lot — showing setbacks, easements, utility connections, grading intent, and the overall building footprint in relation to property boundaries. These drawings are a foundational requirement for building permit applications in virtually every U.S. jurisdiction. Whether you're an owner-builder, a custom home client, or a residential developer, understanding what goes into a ground-up site plan will save you significant time and money before breaking ground. For a broader overview of what these documents contain, see What Is a Site Plan?

Permit Requirements for New Construction Site Plans

Most building departments require a site plan as part of a complete permit submittal for new residential construction. The document must typically be drawn to scale and include specific information that varies by jurisdiction, but certain elements are nearly universal. Topographic data is increasingly required — many counties mandate a grading and drainage plan showing existing and proposed contours, particularly on lots with slopes exceeding 10%. Flood zone status must be identified; if the parcel falls within a FEMA Special Flood Hazard Area, the finished floor elevation must be documented relative to the Base Flood Elevation (BFE). You can verify flood zone classifications through the FEMA Flood Map Service Center.

• Dimensioned property boundaries with bearings and distances from a recorded survey
• All required setbacks — front, rear, and side yards — per local zoning code
• Building envelope showing the proposed footprint with dimensions
• Utility connection points: water, sewer or septic, gas, and electrical service
• Driveway location, width, and connection to the public right-of-way
• Easements, rights-of-way, and any deed restrictions affecting buildable area

The International Residential Code (IRC) provides baseline standards that most jurisdictions adopt, though local amendments frequently add requirements around impervious surface coverage, tree preservation, and stormwater management.

Practical Advice for Ground-Up Site Planning

One of the most common and costly mistakes in new construction planning is assuming the lot's buildable area equals its total square footage. Setbacks, easements, wetland buffers, and utility corridors can dramatically reduce the area where a structure may legally be placed. Always obtain a current boundary survey and overlay all known encumbrances before sizing a floor plan. A house designed at 2,400 square feet may simply not fit once a 25-foot front setback, 10-foot side yards, a rear utility easement, and a stormwater retention area are accounted for.

• Order a topographic survey early — grading surprises are expensive to resolve after design is complete
• Confirm sewer depth and invert elevation before finalizing basement or crawl space decisions
• Check whether your jurisdiction requires a separate erosion and sediment control plan for disturbed areas over one acre
• Verify driveway sight-distance requirements with your local transportation or public works department

If your project includes accessory structures, detached garages, or future additions, plan their locations now — retrofitting site plans is time-consuming. Contractors navigating these requirements regularly will find guidance in our site planning resources for contractors. For stormwater and grading compliance benchmarks, the EPA's Construction General Permit guidelines are an authoritative reference for projects disturbing more than one acre.