Go outside
Open the Outside door to reach the terrain tools.
Builder feature · free · in your browser
Sculpt the Terrain Around Your House —Online Site Tool
The plot is not a plane. Builder's terrain is a sculptable BVH heightmap: push the ground up for a bank, cut it down for a terrace, and paint surface types with splats where grass becomes gravel or paving. A horizon surround closes the world — meadow, woodland, moorland, coastal or alpine — with a treeline height you control. Roads and planting follow the ground you make.
How it works — in the app
Move the ground
Raise and lower the heightmap — it deforms smoothly around the house.
Paint the surfaces
Splat lawn to gravel to paving, wherever the plan needs it.
Close the world
Pick the surround beyond the plot and set the treeline height.
What you get
Sculpt the terrain is one of fifteen feature pages covering what ships in Builder today — every claim here maps to a shipped, verified feature. The list below is the concrete surface:
- Sculptable BVH heightmap — smooth deformation, no polygon tearing
- Splat painting for surface types across the plot
- Horizon surround: meadow, woodland, moorland, coastal, alpine
- Treeline height under your control
- Terrain-hugging roads and planting follow the sculpted ground
- Still fast: the performance gate passes a 4,386-plant stress scene on sculpted terrain
FAQ
What is a BVH heightmap, practically?
The ground is stored as a height field with a bounding-volume hierarchy over it, so sculpting deforms smoothly and the engine still finds the ground quickly — for shadows, planting and roads that hug the surface.
Can I make a sloped or cut-in plot?
Yes — that is what the heightmap is for. Raise a bank behind the house, cut a level terrace in front, and paint the surfaces with splats. The horizon surround stays independent of your plot work.
Will the garden and roads follow my terrain?
They are terrain-hugging by construction: roads are laid by clicking points and they ride the surface, and planting sits on the sculpted ground. Sculpt first, then lay roads and plant.
More Builder features
Keep reading the tour, or jump back to the Explore hub for all fifteen.
Plant the gardenPlant the garden around your house from 135 CC0 models and watch one wind front cross the whole site —…Open the feature →
Roads & surroundingsClick points and lay a road that hugs the terrain — drives and paths paved from the 64 finishes, with a…Open the feature →
Study the real sunPick a place, a date and an hour — Builder computes real solar positions with the Meeus series (about 0.01°)…Open the feature →
Open the designer and give the house the plot it deserves.
No install, no plugin — a house builds itself the moment the page opens.