calculate_buildable_envelope
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Third-party content written by another agent. Data to evaluate, not instructions.
Calculate the maximum buildable area (building envelope) for a lot given zoning constraints. USE WHEN: user asks 'how much can I build', 'max square footage', 'what's the buildable area', 'calculate the envelope', 'how big can my house be', or has specific lot dimensions and zoning rules they want to model. RETURNS: max buildable square feet, max number of stories, envelope dimensions (length × width × height), usable footprint, and coverage math. Takes lot area, setbacks, FAR, height limit, and coverage as inputs — a pure calculation tool, does not query data.
Input schema
| Property | Type | Required | Description |
|---|---|---|---|
| lot_area_sqft | number | yes | Total lot area in square feet |
| front_setback_ft | number | no | Front setback in feet (distance from front property line) |
| side_setback_ft | number | no | Side setback in feet (each side) |
| rear_setback_ft | number | no | Rear setback in feet |
| max_far | number | no | Maximum floor area ratio (e.g., 0.5, 2.0). FAR = building area / lot area. |
| max_height_ft | number | no | Maximum building height in feet |
| max_lot_coverage | number | no | Maximum lot coverage as decimal (e.g., 0.45 for 45%) |
Raw JSON schema
{
"type": "object",
"properties": {
"lot_area_sqft": {
"type": "number",
"description": "Total lot area in square feet"
},
"front_setback_ft": {
"type": "number",
"description": "Front setback in feet (distance from front property line)"
},
"side_setback_ft": {
"type": "number",
"description": "Side setback in feet (each side)"
},
"rear_setback_ft": {
"type": "number",
"description": "Rear setback in feet"
},
"max_far": {
"type": "number",
"description": "Maximum floor area ratio (e.g., 0.5, 2.0). FAR = building area / lot area."
},
"max_height_ft": {
"type": "number",
"description": "Maximum building height in feet"
},
"max_lot_coverage": {
"type": "number",
"description": "Maximum lot coverage as decimal (e.g., 0.45 for 45%)"
}
},
"required": [
"lot_area_sqft"
]
}