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TestFit vs Autodesk Forma Site Design

Two early-stage site planning tools that both generate layout options with AI: TestFit leans toward real estate feasibility, parking and earthwork takeoffs; Forma Site Design leans toward massing and environmental analysis feeding Revit. Vendor-published facts only.

DESK RESEARCH, NOT TESTED. Compiled from vendors' public websites (accessed TestFit Oct 14, 2026; Autodesk Forma Site Design Oct 15, 2026). Vendor claims are not verified by Means & Methods Lab. No scores or rankings.

Side by side

TestFit vs Autodesk Forma Site Design: vendor-published facts side by side
Sheet rowTestFitAutodesk Forma Site Design
CategorySite feasibility & generative designSite planning, massing & environmental analysis
AI role (our label)AI features added to established productAI features added to established product
What it doesReal estate feasibility platform that starts from what the vendor calls an AI-generated site plan you can edit: parcel mapping, road layout, turning radii, topography, parking automation, 2D/3D massing, a pro forma synced to the layout, and automatic takeoffs for parking, infrastructure, and earthwork (including cut and fill). Generative design and an MCP connection are on Site Solver. Exports to Revit, AutoCAD, SketchUp, Excel, and PDF. Vendor cites 6,200+ users (vendor claim).Cloud software for site planning and analysis, described by Autodesk as AI-powered. Site context from the Forma Data Marketplace (terrain, buildings, roads), terrain editing with pad volume and mass balance insights, 3D massing, and an AI-powered Site Automation tool that generates and compares layout options, plus housing, parking, line-building and floor-plan/unit tools. Analyses include sun hours, daylight, wind and noise (each with a rapid machine-learning prediction mode and a detailed simulation mode), microclimate, solar energy, shadow, view and total carbon (US hubs). Forma Board handles design review tied to Revit sheets; AI rendering is included with render limits. Proposals go to Revit as a geolocated native model; IFC/OBJ import and Dynamo and Rhino connections are listed. Autodesk says Forma Site Design replaced Spacemaker, whose subscribers were migrated. A customer quote on the page cites a 60-hour design done in 4 hours (customer claim, not verified).
Who it's forDevelopers, architects, contractors, and civil engineers on the deal team.Anyone in pre-design and schematic design: architects, urban planners and real estate developers (vendor wording). Terrain mass-balance insights are pitched at early cost estimation.
Pricing (as publicly stated)Parking Solver $195/month billed monthly (unlimited users; Pro Forma add-on +$170/mo). Site Solver from $15,000/year billed annually (adds generative design, MCP, dedicated onboarding). Site Solver Portfolio from $20,000/year. (Checked Oct 14, 2026.)Product page headline says "Starting at $59 / month"; the same page's FAQ lists $85 monthly, $700 annually, or $2,100 for 3 years, and says it is also included in the AEC Collection ($460 monthly, $3,675 annually, or $11,030 for 3 years). Free trial offered. We report both figures as published. (Checked Oct 15, 2026.)
Test statusNot tested. No scores.Not tested. No scores.
Vendor links
Sources

Facts last checked: TestFit Oct 14, 2026; Autodesk Forma Site Design Oct 15, 2026. Prices change; check the vendor page before relying on them.

Where the vendor descriptions differ

Paraphrased from the sources listed above. Vendor claims are reported as claims.

What we can't tell you yet

Which tool is better for your work. That needs testing on the same package with a verified answer key. Planned measures for this comparison:

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