Foursite & Remodroom: We Built the Tools That Help Designers Stop Billing by the Hour

Hey PH 👋

My co-founder and I are engineers. We didn't come from interior design. We came from software, and we kept asking the same naive question: why does turning a 2D floor plan into a photorealistic 3D render still take weeks and cost thousands?

We built Foursite by VirtualSpaces to answer that question.

Upload your 2D floor plans or blueprints. The AI converts them, floor plan to 3D, blueprint to 3D, in minutes. You apply AI interior décor. You generate interior design photoreal renders from multiple angles. Three styled directions, accurate to the real space geometry, in a single session.

Then something unexpected happened.

Designers started telling us the tool didn't just make their work faster. It made their hourly billing model feel broken.

Here's why: when your AI 3D visualization workflow produces three design directions in the time it used to take to brief a render studio, billing by the hour actively penalizes you. You get faster; you earn less. That's structurally wrong.

So we started writing about it. The piece we just published explores how designers using AI interior design tools are shifting to value-based pricing, and how that shift changes the economics of their entire practice:

·       Project-based flat fees tied to deliverables, not hours.

·       Package pricing with clear scope: floor plan to 3D conversion, interior design renders, AI virtual staging.

·       Consistent margins with no per-project outsourcing invoices.

·       2-3x more projects per month without adding headcount.

We also built Remodroom for the renovation side: AI visualization for existing spaces, so designers and homeowners can see before-and-after 3D concepts in the first consultation, before anything is committed or purchased.

No render studios. No software hand-offs between CAD tools, modeling packages, and render engines. One environment, one source of truth: the floor plan.

We're two techies who built something for an industry we didn't come from. We built it because the problem was obvious from the outside in a way it perhaps wasn't from within.

The feedback we'd genuinely love: if you're an interior designer, architect, or someone who has tried to explain a design vision to a client using a PDF floor plan and a mood board, does this resonate? What would make Foursite or Remodroom more useful to you?

Interior Designers and Value-based fee

Cheers!