HABITA AI

Before buying, dividing or renovating a home, people must piece together municipal plans, national law, maps and procedures. The problem is global. In Portugal, a building permit takes about nine months in the fastest city and up to a year and a half in Lisbon (World Bank, Subnational B-READY 2024). In San José, California, 78% of detached backyard homes built in 2016–2020 had no permit (Stanford RegLab, Journal of the American Planning Association, 2024). Hong Kong removes or rectifies about 20,000 unauthorised building works a year (Legislative Council reply, May 2026). In the UK, 15% of homeowners who did major works are unsure they had the right permissions (Co-op, 2017). The pattern is the same on three continents: rules are local and scattered, the official route is slow, and people find out too late. Generic AI makes it worse by answering confidently without sources. HABITA answers the first question before money is spent: what applies at this address, who decides, and what must be confirmed, with every answer traced to its official source. HABITA AI is a working property-intelligence system built solo during the hackathon. In the live Cascais demo, you enter an address and ask whether the property can be divided, converted or renovated. Meta Muse Spark plans the investigation, calls tools over snapshotted official sources (municipal plan, national building law), asks only for the facts that public records can't give, and drafts an answer. HABITA's MU-9 verifier checks each statement against the literal text of the official record it cites, and a model can never mark its own answer verified. Unsupported claims stay PENDING CONFIRMATION, with what to ask the council. Around that answer: a reasoning graph from property to conclusion, a map, a PDF report with sources and an integrity seal, and a spoken explanation. Meta SAM 3.1 reads official aerial orthophotos and outlines buildings, annexes and pools as observations to confirm, never as a survey. Meta Muse Image turns the owner's own plan into a labelled concept, such as the home with one more bedroom. Muse Voice Transcribe takes questions and answers by voice in English and Portuguese. A live report copilot answers questions about the report on Muse Spark or on Meta's open weights (Muse Spark Open). Cascais is complete for this hackathon as the end-to-end reference; zoning classification there still requires municipal confirmation, because no validated official zoning layer exists. The same pipeline already extends to Paris, New York and Singapore with partial coverage (authority, official sources, aerial view and official prices), clearly marked, and without verified permit decisions. HABITA is decision support: it does not issue permits or replace the authority.