# RentCap.org

> RentCap is an open civic housing platform and programmatic directory indexing 3,635+ below-market-rate (BMR) luxury apartments, inclusionary zoning developments, and municipal rent caps across 15 major US metropolitan areas.

All rent caps, income ceilings, and AMI eligibility brackets are benchmarked against official HUD and municipal Department of Housing standards under statutory 30x inclusionary housing qualification rules.

## Core Directories & Live Property Registries
- [Chicago ARO Directory](https://rentcap.org/chicago): 777 inclusionary luxury apartments indexed under the Chicago Affordable Requirements Ordinance (ARO).
- [Austin Affordable Housing Directory](https://rentcap.org/austin): 915 developments indexed under Austin Housing Finance Corporation (AHFC) & Affordability Unlocked.
- [Washington D.C. Inclusionary Zoning Directory](https://rentcap.org/washington-dc): 910 developments indexed under D.C. Department of Housing and Community Development (DHCD).
- [Los Angeles TOC & BMR Directory](https://rentcap.org/los-angeles): 494 developments indexed under LA Transit Oriented Communities (TOC) and State Density Bonus.
- [New York City Housing Connect Directory](https://rentcap.org/new-york): 368 developments indexed under NYC Mandatory Inclusionary Housing (MIH) and 421-a / 485-x programs.
- [San Francisco BMR Directory](https://rentcap.org/san-francisco): 171 inclusionary developments indexed under the SF Mayor's Office of Housing and Community Development (MOHCD/DAHLIA).

## Additional Metro Program Hubs
- [Boston Metrolist Housing Hub](https://rentcap.org/boston): Boston Inclusionary Development Policy (IDP) income caps and rent tiers.
- [Seattle MFTE Housing Hub](https://rentcap.org/seattle): Seattle Multifamily Housing Property Tax Exemption (MFTE) limits.
- [Denver HOST Housing Hub](https://rentcap.org/denver): Denver Department of Housing Stability Mandatory Affordable Housing (MAH) guidelines.
- [Miami Workforce Housing Hub](https://rentcap.org/miami): Miami-Dade Workforce Housing Development Program (WHDP) tiers.
- [San Diego Inclusionary Housing Hub](https://rentcap.org/san-diego): San Diego Housing Commission Inclusionary Affordable Housing limits.
- [Atlanta BeltLine Housing Hub](https://rentcap.org/atlanta): City of Atlanta Inclusionary Zoning Ordinance (BeltLine / Westside overlay) rules.
- [Philadelphia AHP Housing Hub](https://rentcap.org/philadelphia): Philadelphia Mixed-Income Housing Bonus guidelines.
- [Portland Inclusionary Housing Hub](https://rentcap.org/portland): Portland Housing Bureau Inclusionary Housing (IH) limits.
- [Minneapolis Missing Middle Hub](https://rentcap.org/minneapolis): Minneapolis Inclusionary Inclusionary Zoning & Missing Middle Housing guidelines.

## Renter Tools & Calculators
- [National HUD 2026 AMI Calculator](https://rentcap.org/#national-calculator): Interactive qualification calculator evaluating annual household income against official HUD Area Median Income tiers across all 15 metros.
- [7-Point Verification Document Checklist](https://rentcap.org/checklist): Standardized document preparation guide for tenant income certification (tax returns, paystubs, bank statements, student exemptions).
- [Live Telemetry Hub](https://rentcap.org/telemetry): Real-time, privacy-first edge usage dashboard reporting visitor volume, tool interactions, and leasing inquiry actions.

## Raw Municipal JSON Feeds (Open Data)
- [Chicago Dataset](https://rentcap.org/data/chicago.json): 777 properties with addresses, legal rent caps, and unit counts.
- [Austin Dataset](https://rentcap.org/data/austin.json): 915 properties with geographic coordinates and affordability tiers.
- [Washington D.C. Dataset](https://rentcap.org/data/washington-dc.json): 910 properties indexed under D.C. DHCD.
- [Los Angeles Dataset](https://rentcap.org/data/los-angeles.json): 494 properties indexed under TOC and Density Bonus.
- [New York City Dataset](https://rentcap.org/data/new-york.json): 368 properties indexed under NYC HPD/Housing Connect.
- [San Francisco Dataset](https://rentcap.org/data/san-francisco.json): 171 properties indexed under SF MOHCD/DAHLIA.

## Programmatic Edge APIs
- [Live Health Endpoint](https://rentcap.org/api/health): JSON status of automated edge sentinels, data integrity checks, and runtime telemetry.
- [Public Telemetry Endpoint](https://rentcap.org/api/telemetry): Aggregated counts of pageviews, tool runs, and metro traffic distributions.
- [Discrepancy Ingestion API](https://rentcap.org/api/discrepancy): POST endpoint for crowd-sourced and landlord corrections.

## Statutory Real Estate Math & Invariants
- **30x BMR Qualification Standard**: In inclusionary housing, minimum income is strictly 30x the monthly rent (ensuring rent is no more than 40% of gross income), while maximum income is capped by the household AMI tier (e.g., 50%, 60%, 80% AMI).
- **Zero-Hallucination Invariant**: All listings and calculations reflect official municipal housing authority clearinghouse rolls and statutory ordinances.

## Optional & Extended Documentation
- [Full LLM Specification & Multi-Metro Reference](https://rentcap.org/llms-full.txt): Complete detailed text reference covering all 15 municipal program citations, AMI schedules, and API definitions.