What BYLD is. One system of record for a construction job: scheduling, estimating, budgets, plans and markup, change orders, punch lists, and owner updates, on the web and on iPhone. Every line maps to a shared 253-code cost spine, so the numbers agree across the job.
Who it is for. Custom home builders, remodelers, general contractors, boutique developers, and project managers running roughly $2M to $10M residential and light commercial work. It is not built for heavy civil or large commercial general contractors.
Why builders trust the numbers. The estimating engine landed total cost within 3.5 percent on a blind test against a completed $12.75M home, and measures 6.2 percent mean out-of-sample error in leave-one-out validation. Every estimate carries a P20 to P80 prediction interval, and those thresholds are enforced automatically on every code change. See the full picture.
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