Explore a High Deduction House for Cost Seg

Bola Akinsanya · Founder, Unlevered · October 9, 2026

714 priced lines from 409 cited sources, observed 2026-10-09. Figures by Sigmund 3.79.0, run 1d164a6afaf6. Year one is first-year depreciation divided by depreciable cost (land excluded). Year-one ROI is the engine's federal tax savings at 37% divided by cash out of pocket (20% down on the land and build, furnishings in cash); loan costs and rental income are not in it, and it assumes enough other income to use the loss in year one. The federal cap on business losses against wages can carry part of it to later years. Assumes a cash build started November 2026 and placed in service 2027-10-01, a short-term rental with an average stay under seven days, owner attestations for the freestanding pieces, and 100% bonus depreciation; federal figures only. The 30% solar and battery credit is not counted. Whole-house scopes are split into rooms by floor area. Frost foundation and perimeter footings and Panel and load-management allowance are partly priced: a component had no published price, so the building cost is a little low and the year-one share a little high. Retail prices change; bids and invoices replace them when the house is built. A design exercise, not tax advice for your situation.