Most of us were trained to think of a Revit site as one big topo surface with sub-regions carved out of it. In Episode 136 of BIM After Dark Live, landscape architect Nehama from Arc Intelligence made a strong case that we have it backwards, and showed how the Environment for Revit toolset is built around a completely different way of thinking about sites.
What We Covered
The biggest mindset shift in this episode was what Nehama calls the "quilt" approach. Instead of one continuous surface that you carve up, you start with the constraints (the road, the building entrance, anything that can't move), then build outward with separate topo solids for each surface type. Hardscape first, then infill. If you need to redesign a piece, you delete it and rebuild it without touching anything around it. The earthwork calculations still work as long as two surfaces overlap across phases, so you don't lose that capability.
She walked through the topography tools in Environment for Revit, which all come down to one thing: smarter ways to place a lot of points without losing your mind. The "from edge" tool, the headline tool with its preview before commit, and the smooth tool that adds points in a grid for Rhino-style surfaces. The preview before you place is the part that changes how you work. You stop guessing how many points you need and start seeing it.
The alignment tool was the one that surprised me most. Revit has had an "alignment" category sitting there for years, meant for Civil 3D imports, that almost nobody used. Arc Intelligence built an editable design workflow on top of it. You sketch a center line, drape it on adjacent surfaces, define cross-sections, and extract a topo solid. It's how you'd design a path or a road if you were thinking like a civil engineer, but with an interface anyone can use.
A practical heads-up worth pulling out: the earthwork calculation in Revit 2024 and 2025 has a math error. It's better in 2026 but still not perfect. If you're using Revit for cut and fill quantities in those versions, don't trust the native numbers.
We also got into LiDAR and point cloud workflows, the Scan to Model tool that knows how to exclude trees and walls from a topo extraction, and why landscape sections are still the hardest view type to get looking right in Revit.
