Alternatives
TestFit Alternative
Feasibility for one small plot: setbacks and height limit, a massing block with its plot ratio, a car park with its bays, and then the building itself.
TestFit: From $195 a month. Home 3D Plan (home3dplan.com): Free.
What TestFit does, and where it is here
Parking
Car parks with the bays set out, laid on the survey. See the tool
Site rules
The plot with its setbacks and height limit, and a check that the massing stays inside them. See the tool
Feasibility
A footprint and storeys with floor area, coverage and plot ratio. See the tool
Access
Driveways, access roads and footpaths with kerbs. See the tool
Home 3D Plan and TestFit, side by side
| Feature | Home 3D Plan | TestFit |
|---|---|---|
| Price | Free | Parking Solver $195 a month. Site Solver from $15,000 a year |
| Free option | Start in the browser with no account | See vendor |
| Runs on | Any modern browser: Windows, Mac, Linux, ChromeOS, iPad and phone | See vendor |
| Install | None. Can be installed as a web app | See vendor |
| IFC | IFC4 export of architecture, structure and services | See vendor |
| DWG and DXF | DWG and DXF in and out | See vendor |
| Structure | Columns, beams, braces, footings and gridlines, with a reinforcement bar schedule | See vendor |
| Services (MEP) | Electrical, plumbing and heating, drainage, ventilation, gas and solar PV | See vendor |
| Site and terrain | Survey levels, terraces, retaining walls, roads, paving and planting | Site plans, parking layouts and yield |
| Quantities | Takeoff by storey, element, function and material, as CSV or a workbook | Unit mix and yield |
| Drawings and sheets | Sections, elevations, 1:5 details and sheet sets to PDF, DWG, DXF and SVG | See vendor |
| Rendering | Four render tiers, the top one a GPU path tracer on desktop | See vendor |
| Team work | Organisation projects with discipline roles and live presence | See vendor |
| AI and agents | MCP server with 38 tools for Claude, ChatGPT and other agents | Generative site solving |
TestFit prices as published on 10 October 2026 (https://www.testfit.io/pricing). "See vendor" means the vendor does not publish the fact or we could not confirm it. TestFit is a trademark of TestFit Inc.. Home 3D Plan is not affiliated with TestFit Inc..
What TestFit does that Home 3D Plan does not
- Solves many site options at once for yield.
- Multifamily, industrial and parking structures at scale.
- Unit mix and pro forma for developers.
Moving from TestFit
Bring a TestFit site plan in as DWG or a scaled image and trace it.
Carry the building on here to drawings and IFC4.
Which one fits your work
Pick TestFit when
- You test large sites for yield.
- You develop multifamily or industrial projects.
- You need a pro forma from the layout.
Pick Home 3D Plan when
- You work on one small plot with a house or small building.
- You want the feasibility to become the building.
- You want drawings and IFC4 at the end.
How to start
Open the editor
Go to home3dplan.com and open the editor. Nothing to install and no account needed to start.
Bring your drawing
Open a DWG or DXF and turn its lines into walls, or trace over a PDF or a scan set to scale.
Build the model
Draw walls and the storeys, rooms, slabs and 3D model follow. Add roofs, structure, services and the site.
Send it out
Print sections, elevations and sheets to PDF or DWG, and send the building out as IFC4.
TestFit and Home 3D Plan, answered
Can Home 3D Plan lay out a car park?
Yes. Paving includes car parks with the bays set out for you, laid on the ground levels of the site.
How much does TestFit cost compared with Home 3D Plan?
TestFit: Parking Solver $195 a month. Site Solver from $15,000 a year, as published on 10 October 2026. Home 3D Plan is free to use in the browser today.
Does Home 3D Plan export IFC and DWG?
Yes. The building goes out as IFC4, with its architecture, structure and services, and the drawings go out as DWG, DXF, PDF and SVG. DWG and DXF also come in. The editor does not open IFC files.
Do I need to install anything?
No. Home 3D Plan runs in any modern browser on Windows, Mac, Linux, ChromeOS, iPad and phones, and can be installed as a web app if you want an icon.
Read on
- Paving and Car Parks: Patios, yards and car parks with the bays set out for you.
- MCP server: Let Claude, ChatGPT and other agents build a model in the editor.
- Maket alternative: An AI assistant that builds in a real, editable model.
- Finch alternative: Massing, AI layouts and drawings in one model.
- All alternatives: Every product we compare against, with its price.