If you’ve never applied for a building permit, the term “site plan” can feel technical. It isn’t. A site plan is one of the most practical, understandable documents in construction — once you know what it is.
I’m Engineer Wasim of Site Plans Online USA. This guide gives you a plain-English explanation.
The Simple Definition
A site plan is a top-view, scaled drawing of a property that shows what’s currently on the land and what the owner plans to build or change.
Think of it as a simplified aerial photograph but drawn to scale, labeled with measurements, and showing the specific information that a building department needs to review a permit application.
What a Site Plan Shows
A site plan typically includes:
- Property boundaries — the lot lines that define where your property ends and your neighbor’s begins
- Existing structures — your house, garage, shed, pool, fence, driveway, and any other structure on the lot
- Proposed project — where the new pool, fence, addition, shed, or garage will be located
- Setbacks — the distances from the proposed structure to each property line
- Scale and north arrow — shows the drawing is to scale and orients it with north
- Title block — property address, owner name, preparer information, date
What a Site Plan Is NOT
A site plan is not:
- A floor plan — floor plans show the interior layout of a building. A site plan shows the exterior, property-level layout.
- A survey — surveys are prepared by licensed land surveyors and certify boundary locations. A site plan is a drawing prepared by a drafter using that data.
- A blueprint — blueprints (construction drawings) show how to build the structure. A site plan shows where on the property it goes.
When Do You Need a Site Plan?
You need a site plan when applying for a building permit that involves work on the exterior of your property. Common examples:
- Pool permit — pool permit site plan guide
- Fence permit — fence permit site plan guide
- Shed permit — shed permit site plan guide
- Deck or patio permit
- Home addition
- Garage addition — garage addition site plan guide
- ADU or guest house — ADU site plan guide
- Commercial permit — commercial site plans
Who Prepares a Site Plan?
A site plan can be prepared by a professional drafter — which is what Site Plans Online USA does. For most residential permits, you do not need an architect or licensed surveyor to prepare it. For commercial projects and projects requiring engineering review, you need a PE-stamped plan. See our PE Stamp services.
How Site Plans Online USA Prepares Your Site Plan
We use verified GIS data, parcel records, and county zoning information to build an accurate site plan for your property. You provide your address and project type. We do the research and drafting. You receive a permit-ready PDF.
Visit our Services page or Contact us to get started.
Need a Permit Site Plan?
Get a permit-ready site plan in 12–24 hours — starting from $79. All 50 states. 99% approval rate.
