Real Estate Listing Aggregator

An automated real estate data aggregation platform that pulls listings from multiple sources, deduplicates, enriches with market data, and scores investment potential.

Data Sources:

• Zillow scraping (listings, Zestimates, price history)
• Redfin data extraction (DOM, HOA, school ratings)
• Realtor.com listings and agent data
• MLS RETS/RESO API integration
• County tax assessor records
• Foreclosure and auction listings

Deal Analysis:

• Cap rate calculation from rent estimates
• Cash-on-cash return projection
• Comparable sales analysis (comps within 0.5mi)
• Price per square foot vs neighborhood average
• Days on market trend analysis
• Appreciation rate forecasting

Scoring & Alerts:

• Custom deal scoring with weighted criteria
• Investment score (0–100) for each listing
• Instant alerts for listings matching your criteria
• Price reduction notifications
• New listing alerts within target areas

Market Analytics:

• Neighborhood heat maps with price trends
• Rental yield estimates by ZIP code
• School district scoring
• Crime rate data overlay
• Population and job growth metrics

Export & Integration:

• Export to CSV, Google Sheets, Airtable
• Webhooks for custom workflows
• API access for building custom tools
• PDF reports for each property
• CRM integration for investor pipelines

Tech Stack:

• Python 3.11+ with Scrapy framework
• PostgreSQL + PostGIS for geo queries
• Redis for job queue
• React dashboard with map views
• Docker Compose deployment