TestFit
Generative site planning for real estate feasibility
About
TestFit is a real estate feasibility platform founded in Dallas in 2016 by architect Clifton Harness and Ryan Griege. You define a site boundary, zoning setbacks, parking ratios, and unit mix, and its parametric engine generates buildable site layouts with parking, circulation, and pro forma data in seconds, updating live as you change inputs. The company says its platform is used to evaluate more than 3,200 deals per week, and it exports to Revit, SketchUp, AutoCAD, and Excel; it also offers an MCP connection for prompting editable site plans with an AI assistant, though that integration is documented by a third-party directory rather than the vendor itself.
What it can do
- Generative site plan layouts
- Zoning and environmental data maps
- Live pro forma integration
- Parking and quantity takeoffs
- Revit/SketchUp/AutoCAD export
Setup
- Visit https://testfit.io
- Choose a subscription plan
- Map a parcel or draw a site boundary
- Set zoning and parking parameters to generate layouts
Prerequisites
Real estate development project; paid subscription
Use cases
Works with
Trust score — 8/10
Scored 8/10 (verified tier, metrics-v1). Evidence: Founded 2016 by architect Clifton Harness and Ryan Griege; $22M raised; 3,200 deals/week — company-reported via Bisnow and company materials; Generative/parametric site-planning workflow documented by independent review (illustrarch) and the vendor; MCP connection for AI-assisted site plans documented only by a third-party directory, not the vendor — flagged in description. Manual review: entry checked; pricing and AI-integration caveats kept honest. License: Commercial SaaS; free one-year access offered to qualifying cities (April 2026).
How the trust score is built
Full methodology →- Adoption · stars/downloads, log-scaled vs peers
- 8.0/10
- Maintenance · recency, releases, issue load
- 8.0/10
- Openness · license + docs
- 7.0/10
- Manual review · sanity read + red-flag check
- 8.0/10
- · Founded 2016 by architect Clifton Harness and Ryan Griege; $22M raised; 3,200 deals/week — company-reported via Bisnow and company materials
- · Generative/parametric site-planning workflow documented by independent review (illustrarch) and the vendor
- · MCP connection for AI-assisted site plans documented only by a third-party directory, not the vendor — flagged in description
- · manual review: entry checked; pricing and AI-integration caveats kept honest
Sources
Every fact above was checked against these sources. Where a claim comes from the provider and couldn't be independently verified, the text says so.