Property Boundary Calculator
Calculate lot area, perimeter, and buildable area from metes and bounds descriptions with closure analysis and setback checks.
Inputs
Results
Lot Area
30,000 sq ft
≈ 7 basketball courts
Lot Area
0.69 acres
≈ 7 basketball courts
How to Use This Calculator
- Enter each course of the metes and bounds description: bearing and distance.
- Input the starting point coordinates from a known monument or reference.
- Add all courses until the boundary closes.
- Review the Closure Error in feet and the Closure Precision ratio.
- If closure error exceeds 1:5,000, re-check fieldwork or deed description for errors.
How the result changes with Course 3 Bearing
| Course 3 Bearing | Lot Area | Lot Area |
|---|---|---|
| 36 | 14,620.45 sq ft | 0.34 acres |
| 126 | 39,997.12 sq ft | 0.92 acres |
| 234 | 7,636.44 sq ft | 0.18 acres |
| 324 | 8,890.96 sq ft | 0.2 acres |
What each input means
- Course 1 Bearing
- Azimuth bearing for the first course (typically the front lot line). 0° = due North.
- Course 1 Distance
- Horizontal distance for the first course (frontage).
- Course 2 Bearing
- Azimuth bearing for the second course (side lot line).
- Course 2 Distance
- Horizontal distance for the second course (depth).
- Course 3 Bearing
- Azimuth bearing for the third course (rear lot line).
- Course 3 Distance
- Horizontal distance for the third course.
- Course 4 Bearing
- Azimuth bearing for the fourth course (side lot line).
- Course 4 Distance
- Horizontal distance for the fourth course.
- Front Setback
- Required front yard setback.
- Side Setback
- Required side yard setback (each side).
- Rear Setback
- Required rear yard setback.
How this is calculated
Worked example, using the default values
- Identify Input Parameters4 parametersCourse 1 Bearing = 0, Course 1 Distance = 200, Course 2 Bearing = 90, Course 2 Distance = 150 = 11 input(s) provided
- Calculate Lot AreaLot Area30000 = 30000
- Calculate Lot AreaLot Area0.6887 = 0.6887
- Calculate PerimeterPerimeter700 = 700
- Calculate Closure ErrorClosure Error0 = 0
Engine last updated . Checked against 2 independently-derived tests — how we verify calculators.
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