Find development
opportunities instantly.
AI discovers air rights, assemblages, office conversions, and development opportunities across New York City.
Development intelligence for acquisition decisions.
Zonalyze transforms zoning, development rights, building conditions, and market assumptions into a ranked set of executable development strategies.
From air rights acquisitions to office conversions and ground-up development, every recommendation is backed by transparent assumptions, real-world constraints, and projected economics.
350 West 38 St
120 Wall St
22 Bond St
Every opportunity, ranked by upside.
Zonalyze evaluates air rights, assemblage, office conversions, City of Yes incentives, and ground-up development opportunities—then ranks the highest-value path for every site.
Everything you need to size a deal.
From the first map scan to a filing-ready memo — one workspace, one source of truth, no spreadsheets.
Deal sourcing
Scan every NYC lot on the map, colored by its strongest development play. Filter to air rights, conversions, assemblage, or distress.
Development scoring
An AI score for every parcel, built from real zoning, FAR slack, market strength, and City of Yes upside — explained, not asserted.
3D massing in context
Generate zoning-compliant massing inside the real street grid, with neighboring buildings, setbacks, and sun.
Instant feasibility
Buildable SF, hard and soft cost, revenue, and ROI — derived live from the lot, with every assumption overridable.
Live NYC data
PLUTO, zoning, ownership, and the DOF tax-lien sale list — refreshed from the city, with the source and date on every figure.
Reports & export
Feasibility memos and investment packages in seconds — print-ready, shareable, and clearly marked not-for-filing.
Find your next development opportunity.
Search any address, parcel, or BBL — Zonalyze does the zoning, the math, and the massing in seconds.