Introduction

Urbium Studio is a desktop modeling app for architects. You model a building on its lot, an AI agent you bring changes it when you ask, and the app checks the result against the lot's zoning rules as you work. It runs on macOS, Windows and Linux.

Studio is in early access. The install page says how to get a build.

What you can do with it

• Model. Sketch rooms in Design mode, then turn them into walls, slabs, doors and windows in one step. Or model in BIM from the start: walls, openings, stairs, railings, roofs, curtain walls, columns, fixtures. See Design mode and Walls, openings and elements.
• Work with an agent. Ask for a change in plain words. Each conversation edits its own copy of the model. You compare before and after, then accept or discard. See Agents and chat.
• Check a lot's rules. Studio loads a lot and its zoning rules where that data exists, and measures setbacks, lot coverage, height and more on every edit. Every value is provisional. See Lots and zoning.
• Draw and hand off. A permit-style sheet set drawn from the model, published as PDF; export to IFC, DXF, STEP and mesh formats; BCF issues. See Sheets, layouts and title blocks and Export.

What it does not do

• It does not tell you a design complies. Rule checks, sheet checks and the permit pre-flight are aids, and they say so.
• It does not run an AI model of its own. The chat inside Studio runs Claude Code with your Claude account or a key your firm gives you. See Agents and chat.

How the docs are organised

• Getting started: install, the window, keys.
• Quick start: two short walkthroughs, a lot to a massing, and a change made by the agent.
• Modeling: every way to move around, draw and edit the model.
• AI agent: the chat, reviewing changes, comments.
• Site and regulation: lots, zoning, setbacks, terrain, underlays and point clouds.
• Drawings and data: sheets, sections, quantities, cost, BCF issues, export.
• For your IT and engineers: file formats, the control port for outside agents, keys, platforms, privacy.
• Help: errors you may meet and what to do.