Land Development & Construction
Plan development, calculate FAR/FSI, grading, and construction volumes
Plot Division Planner
Split a parcel into multiple buildable plots by ratio, fixed dimensions, or zoning rules—auto-calculate counts, areas, frontage, and access.
FAR / FSI Calculator
Compute buildable floor area from plot size and zoning—account for setbacks, coverage, height limits, podium/tower splits, bonuses, and parking.
Land Grading / Slope Calculator
Compute slope %, grade, and cut/fill volumes from elevations and target grades—plus profiles, staking, and drainage helpers.
Retaining Wall Volume & Cost
Estimate materials and total cost for gravity, segmental block, gabion, or cast-in-place retaining walls—base, backfill, drainage, geogrid, and caps included. (Planning aid only; not a structural design.)
Land Fill Volume Calculator
Estimate cubic yards/meters of fill needed to raise or level land—supports rectangles, polygons, and grid/TIN surfaces with compaction and topsoil options.
Road / Driveway Construction Cost Estimator
Estimate rough project costs for residential driveways or small private access roads—includes breakdowns for excavation, base, surface material, labor, drainage, and contingency.
Building Coverage Ratio Calculator
Calculate building coverage ratio by comparing total building footprint area to lot area. Compare against coverage limits and explore development scenarios.
Cut-and-Fill Mass Balance Tool
Estimate cut and fill earthwork volumes by zone using average depths and plan areas. Calculate net balance, import/export volumes, and optional costs.
Slope Stability / Safe Gradient Checker
Convert slopes between percent, degrees, and rise:run ratio. Compare against rule-of-thumb guideline ranges for driveways, paths, ramps, yards, and general soil slopes.
Fence Post Spacing & Material Estimator
Estimate fence post spacing and material quantities for wood privacy, picket, chain link, field wire, and ranch rail fences. Calculate posts, panels, boards, rails, and concrete needed.
Simple Zoning Density Calculator
Calculate allowable units per acre based on zoning density limits. Estimate maximum dwelling units, building count, and development capacity for residential projects.