Closed beta · invite-only
The Development OS for small-scale workforce-housing builders.
From parcel to stabilization — one AI-powered platform built for small-scale developers. UrbnStack replaces the spreadsheets, the email threads, and the manual reconciliation with a single operating system for every phase of your deal.
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What ships in the closed beta
Plotline
Paste a Miami-Dade address. Get zoning, setbacks, bonus overlays, and a verdict in under 10 seconds — no broker, no consultant.
Phase 9 Construction
AIA G702/G703 draws, change orders, RFIs, lien waivers, OAC meetings, threshold inspections — every construction artifact in one place.
External reviewers
Send a one-tap, time-bound link to your lender, title agent, inspector, or auditor. No accounts to create. HMAC-signed and audit-logged.
Vault + privacy
Org-scoped document vault. GDPR/CCPA-grade data exports and deletion. Full audit log of every action across every project.
Built for developers building 40 units or fewer · Miami-Dade first · Florida-wide soon