---
title: Slab to Sale
emoji: 🏠
colorFrom: blue
colorTo: red
sdk: static
app_file: index.html
pinned: false
short_description: Compare 3D home cost, schedule and profitability.
---

# Slab to Sale

Slab to Sale is an interactive pre-construction feasibility tool that compares conventional home construction with a 3D-printed-wall scenario from foundation through finished-project economics.

## What it does

- Compares conventional and 3D-print construction schedules
- Estimates full-project cost, financing impact, and profit range
- Calculates break-even printed-wall pricing
- Models optional printer ownership payback
- Surfaces bottlenecks, permit assumptions, and data provenance
- Uses transparent public, vendor, commercial, and user-entered sources


Premium static Hugging Face Space comparing conventional construction and 3D-printed-wall scenarios.

## V11 motion upgrade

- Hero house now visibly prints itself layer by layer
- 3D perspective side wall and roof slope
- Moving printer gantry and nozzle
- Roof, openings, plumbing/electrical traces appear in sequence
- Looping construction status pill
- Finished-house fallback for reduced-motion users

## Existing sourced-data features

- Data provenance badges throughout the configurator
- RentCast-ready property-value fields, without exposing an API key
- FHFA House Price Index source link for market context
- U.S. Census Survey of Construction source for future duration benchmarks
- Census Building Permits Survey source for market permit activity
- BLS Producer Price Index and operator-wage references
- FRED prime-rate benchmark separated from editable lender spread
- Modeled construction APR calculated transparently
- ICON vendor pricing source on printer purchase price
- RSMeans / Gordian marked as a future licensed cost-data source
- User/lender inputs explicitly separated from public and vendor data
- Dedicated Data Provenance section showing connection status

## Important

V10 is still a static Space. Source links and benchmark snapshots are shown transparently, but most sources are not fetched live. Commercial APIs that require keys should be connected through a backend rather than exposing secrets in `index.html`.