The core workflow difference

Popular tools like Planner 5D, Homestyler, and Coohom give you a blank canvas or a preset room shape. You sketch approximate walls, drop in furniture from their catalogue, and end up with something that looks roughly like your home. The results can be visually beautiful — but the geometry is approximate, which matters when you are specifying a wardrobe for a 2,350 mm alcove or checking whether a sofa clears a swing door.

StoreySG takes a different approach: upload your actual HDB or condo floor plan (PDF or image) and trace it at true millimetre scale. Every wall is a real number. When you place furniture, you are placing it in a space that measures the same as the space in your flat. That precision travels all the way through to the CAD DXF export — so your designer or contractor gets a floor plan they can actually measure, not just look at.

Natural-language editing — what it actually means

StoreySG lets you type instructions like "Place a queen bed near the south wall", "Add a window on wall 2", or "Change the floor to warm oak" — and the AI makes that change in the scene. This is genuinely useful for exploring layout ideas without hunting through menus.

What it is not: it does not generate a complete, furnished home from a single sentence. Think of it as a fluent co-pilot. You direct; it executes. That is a more honest and more useful capability than the "one prompt → finished house" marketing that some tools hint at.

Browser-native, no GPU required

SketchUp, Live Home 3D, and similar desktop applications need installation and work best on machines with a dedicated graphics card. Coohom's cloud-render pipeline produces polished photorealistic images, but typically requires you to queue a render job.

StoreySG's 3D runs in the browser via WebGL. You get a real-time 3D view — swap finishes, cut in a door, spin the model — on an ordinary laptop or even a phone, with no software to install and no render queue for interactive work. For more on why this matters for hardware, see AI rendering without a gaming PC.

Live 2D ↔ 3D sync

Most tools keep the 2D plan and the 3D view as separate representations that you have to manually keep in step. StoreySG maintains a single model: when you edit the 2D plan the 3D updates instantly, and vice versa. This removes a whole class of mistakes where the plan says one thing and the 3D shows another.

Real-time human + AI collaboration

Multiple people — a homeowner, their spouse, an interior designer — can edit the same scene simultaneously, alongside the AI agent. This is useful if you are working with a renovation firm: everyone looks at and comments on the same model rather than emailing back-and-forth with versioned screenshots.

Honest comparison: where the alternatives still lead

A fair comparison requires acknowledging what StoreySG does not offer today:

What you can export — and why it matters

The export set is designed around the renovation workflow, not just visualisation:

• DXF (2D CAD) — your floor plan with walls, door and window openings, and dimensions in mm. Opens directly in AutoCAD, LibreCAD, and QCAD. A contractor or designer can measure from it. This is the key document that bridges "design app" and "building site".
• GLB / OBJ / STL / USDZ — render-ready 3D models. Send to a renderer, open in a 3D tool, or view in augmented reality on a phone.
• PNG snapshot — a quick share-ready image of the current view.
• Furniture / BOM list (CSV) — every item in the scene listed with its properties. Useful for shopping, quoting, and checking nothing gets forgotten.

What the DXF is not: it is not a stamped construction-drawing set, not a mechanical/electrical/plumbing (MEP) drawing, and not a PE-certified structural document. For those, you still need a licensed professional. Think of it as a precise, measurable spatial plan that gives your contractor a much better brief than a mood board or a screenshot.

Who StoreySG is built for

Three groups get the most out of it:

• Singapore homeowners (HDB or condo) planning a renovation who want to see their actual flat — not a generic room — in 3D before committing to a layout or a contractor brief.
• Interior designers and renovation firms who want to collaborate in real time with clients on a shared model, and who need a CAD-exportable plan rather than just pretty renders.
• Anyone who prefers typing over clicking through menus — if you can describe what you want in a sentence, the AI will attempt it.

A quick note on the floor-plan step

Understanding your flat's actual dimensions is the foundation of good renovation planning. If you are working with an HDB flat, you can find your original floor plan through HDB's e-services portal (My HDBPage). For more on the different HDB flat types and what their floor plans look like, see HDB flat types and floor plans explained. Once you have that plan, uploading and tracing it in StoreySG takes a few minutes — and you get a true-scale model to work from for the rest of the project.

The honest bottom line

StoreySG is a precision-first planning tool, not a visual-effects studio. If you need the richest possible furniture catalogue or polished photorealistic stills for a client pitch today, established tools have the depth of content that comes with years on the market. Where StoreySG earns its place is in the gap that those tools leave: working from your actual floor plan, at real scale, with a CAD output that your contractor can measure from — and being able to explore and edit the layout with your co-designer or spouse in natural language, in the browser, on whatever device is in front of you.