Client-ready · Single file · No dependencies
Development Lens
Turn core underwriting and site math into instant visuals—built for conversations with investors, municipalities, and construction partners.
Income approach snapshot
NOI = EGI − OpEx · Value ≈ NOI ÷ Cap Rate · EGI = GPI × (1 − Vacancy)
Effective gross income—
NOI—
Indicated value—
Debt service coverage
PMT = P × [ r(1+r)ⁿ ] ÷ [ (1+r)ⁿ − 1 ] · DSCR = NOI ÷ Annual debt service
Annual debt service—
DSCR—
Debt yield—
Zoning envelope (FAR)
Allowable GFAmax = Lot Area × FAR · Lot coverage relates footprint to parcel
Max allowable GFA—
Headroom / deficit—
Built intensity—
Slab-on-grade estimator
Volume (ft³) = Length × Width × Thickness · yd³ = ft³ ÷ 27 (add ~5–10% waste in practice)
Volume (ft³)—
Volume (yd³)—
With 8% waste—
Parking stall math
Stalls ≈ ⌈ GLA × (ratio ÷ 1000) ⌉ · Ratio expressed as stalls per 1,000 SF
Required stalls—
SF per stall—
Indicative paving (~330 SF/stall)—