Skip to main content
Three ways to define a site boundary: select parcels from the map, draw a shape by hand, or edit an existing boundary. The left panel shows the project name, address, acreage, zoning code, and a Site Boundary section that lists selected parcels.

​
Select parcels

Click parcels on the map to add them to your site. Click a selected parcel again to remove it. A tooltip on the right side of the screen reads Select Parcel and confirms you can select parcels to add or remove from the project site.

Selecting parcels on the map

The panel shows the address, area, and zoning code for the selected parcels.
Use the undo and redo buttons in the toolbar at the top of the map to step back through changes while selecting parcels, drawing, or editing a boundary.

​
Draw a boundary

When the available parcels don’t match the actual shape of your site, draw the boundary by hand. A tooltip on the right reads Draw Polygon with instructions: click on the map to start a polygon and add points, then double-click to finish.
1

Select the draw tool

Choose the draw tool from the toolbar at the top of the map.
2

Click to add points

Click each corner of your site to place a point.
3

Double-click to close

Double-click the final point to close the shape.

Drawing a custom site boundary

A small diagram in the tooltip shows how the polygon takes shape as you add points.

​
Edit a boundary

After selecting parcels or drawing a shape, switch to edit mode to fine-tune the boundary. A tooltip on the right reads Edit Polygon: click and drag points on your parcel to edit. Blue dots on the boundary are drag handles.

Editing an existing site boundary

Drag any blue dot to reshape the boundary. The panel on the left updates the acreage as you adjust. Smaller dots sit halfway along each edge. Drag one to add a corner there. To use only part of a parcel, select the parcel, switch to edit mode, and pull its corners in until the shape covers just your site.

​
Change the site later

If the site changes after you create the project, you don’t need a new one. In the viewer toolbar, click Edit Boundaries Edit Boundaries button and select or draw the new boundary. Then click Edit Setbacks Edit Setbacks button to check the setbacks for the new site. Your changes save to the same project.

​
Warning surfaces

Parafin warns you about potential issues with your site boundary.

​
Parcel adjacency

If you select parcels that are not adjacent to each other, a red Parcel Adjacency warning appears in the Site Boundary section: “Selected parcels must be adjacent to form a contiguous site. Add or remove parcels, or adjust the boundary geometry to proceed.” The Next button stays disabled until the parcels form one contiguous site.
Site Boundary section showing red Parcel Adjacency warning card above the list of selected parcels

Parcel Adjacency warning in the Site Boundary section

​
Address conflicts

When the site boundary does not contain the project address, a warning opens under the address. Click Address Suggestions to pick one of the addresses your selected parcels carry, or Ignore For Now to keep the address you entered and carry on.
Project Address Not Within Selected Site
The selected site boundary does not contain the project address. You can adjust the address or continue with the current site selection.
Address Suggestions
Ignore For Now

Warning when the address falls outside the site