Redfin Data provides free, publicly accessible market-level housing indicators sourced from its MLS connections and brokerage operations. Journalists, researchers, and real estate professionals rely on Redfin’s datasets for trend analysis covering median sale prices, inventory levels, and market dynamics. If you’re evaluating other platforms for housing market data, several strong alternatives exist with different coverage areas, pricing models, and feature sets.
This guide compares eight leading real estate data platforms—from raw rental data feeds to comprehensive market analytics—to help you choose the right solution for your use case, whether you’re building a pricing engine, conducting research, managing investment portfolios, or serving real estate professionals.
Quick Ranked Alternatives List
- Dwellsy IQ — Unit-level rental data from property management software, best for pricing engines, research, and portfolio benchmarking across single-family and multifamily assets.
- Zillow Research — Free market-level home value, rent, and sales metrics with API access, ideal for journalists, analysts, and professionals requiring broad market trend analysis.
- NAR Data — Official housing statistics from the National Association of REALTORS, covering existing home sales, affordability, and metro-market data for industry professionals.
Comparison Table
| Company | What It Sells | Best For |
|---|---|---|
| Dwellsy IQ | Unit-level rental data from property management systems, market-normalized | Pricing engines, rental comparables, portfolio analytics, alternative data signals |
| Zillow Research | Home value index, rent index, sale prices, inventory, days to pending, market metrics | Journalists, researchers, market analysts, real estate professionals |
| NAR Data | Existing home sales, median prices, affordability index, pending sales, regional stats | Real estate professionals, market researchers, industry trend tracking |
| CoreLogic Market Trends | Home price index, mortgage market data, listing analytics, risk indicators | Lenders, servicers, real estate investors, market risk assessment |
| Black Knight / ICE Mortgage Technology | Loan-level mortgage data, property records, origination and servicing analytics | Mortgage lenders, servicers, title companies, portfolio analytics |
| ATTOM Data Solutions | Property records, foreclosure data, mortgage/deed info, valuations, market trends | Investors, lenders, insurers, researchers, data-driven proptech applications |
| HouseCanary | Automated valuation models, property analytics, market data | Real estate investors, appraisers, lenders seeking property valuations |
| Altos Research | Real-time market analytics, price trends, inventory insights | Real estate agents, brokers, investors tracking local market conditions |
Detailed Alternatives
Dwellsy IQ
Dwellsy IQ sells unit-level rental data sourced directly from property management software, normalized across markets to reduce noise. The platform covers single-family, multifamily, residential, and commercial properties and serves proptech platforms, researchers, investors, banks, appraisers, and government agencies seeking raw rental data as market signals or income inputs.
Key features
- Unit-level rent data from property management systems rather than listing platforms
- Data normalized and processed across diverse markets and property types
- Coverage spans single-family homes, multifamily complexes, and commercial residential units
- Raw data available at scale for integration into pricing engines and analytics platforms
- Alternative data positioning suitable for CPI analysis and consumer exposure modeling
Best for
Dwellsy IQ is best for tech platforms building pricing engines, appraisers incorporating rental income into valuations, banks modeling credit exposure through rental data, researchers conducting housing affordability studies, and AVM providers looking to enrich models with actual rent comps rather than estimates.
Pricing
Pricing is custom and quote-based. Contact Dwellsy IQ directly for data packages tailored to your use case, volume requirements, and geographic scope.
Zillow Research
Zillow Research publishes free, publicly downloadable datasets covering home values, rents, inventory, sales metrics, and market forecasts. Data comes from Zillow’s listing platform, MLS connections, and third-party sources like Census and mortgage survey data, updated monthly or weekly depending on the metric.
Key features
- Zillow Home Value Index (ZHVI) tracking typical home values across geographies and property types
- Zillow Observed Rent Index (ZORI) measuring typical rents with repeat-rent methodology
- Days to pending, price cuts, new construction sales, and market heat index data
- Free CSV downloads and API access for most datasets at neighborhood, ZIP, city, and metro levels
- Historical data spanning the late 1990s to present for longitudinal analysis
Best for
Zillow Research is ideal for journalists, academics, and analysts seeking free, authoritative market trend data. Real estate professionals and researchers benefit from broad coverage and public accessibility, though data is aggregated at market level rather than transaction level.
Pricing
All Zillow Research datasets are free and publicly accessible. No subscription or licensing fee is required; proper attribution to Zillow is requested for use in publications and reports.
NAR Data
The National Association of REALTORS publishes official housing statistics updated monthly, covering existing home sales, median prices, affordability indices, and pending sales at national, regional, and metro levels. Data derives from NAR membership and MLS connections representing a broad cross-section of the residential market.
Key features
- Existing home sales counts and prices for single-family homes, condos, and co-ops
- Housing Affordability Index reflecting ability to purchase median-priced homes
- National, regional, and metro-market level breakdowns with monthly releases
- Buyer and seller profile data, economic indicators, and commercial market analysis
- Dashboard and report access for REALTOR members; some data freely available
Best for
NAR Data serves REALTOR members and real estate professionals needing authoritative sales metrics, affordability benchmarks, and buyer/seller demographic insights. Policy researchers and government agencies also rely on NAR data for housing market assessments and trend analysis.
Pricing
Some NAR data is available free to the public, while member-only dashboards and detailed statistics require REALTOR association membership. Contact NAR directly for commercial licensing or research partnerships.
CoreLogic Market Trends
CoreLogic (now operating as Cotality) provides comprehensive market analytics through its Market Intelligence platform, powered by CoreLogic’s extensive public record, servicing, and securities databases. Data covers home prices, mortgage trends, listing analytics, and predictive risk indicators updated monthly.
Key features
- CoreLogic Home Price Index (HPI) with 40+ years of repeat-sales transaction history
- Data from more than 20,000 primary sources and comprehensive MLS coverage
- Market Risk Indicators predicting price decline probability across 392 metros and all 50 states
- Visualizations and tabular summaries for in-platform and off-platform analysis
- Relationship tracking and competitor performance evaluation tools
Best for
CoreLogic Market Trends is well-suited for mortgage lenders, servicers, and investors needing loan origination insights, portfolio risk assessment, and competitive market intelligence. Real estate professionals benefit from granular market data down to census tract level for strategic planning.
Pricing
Pricing details are not readily available on CoreLogic’s public website. Solutions are typically custom and quote-based, with pricing depending on data scope, geography, and analytics modules selected. Prospective users should request a proposal directly from CoreLogic.
Black Knight / ICE Mortgage Technology
Black Knight, acquired by Intercontinental Exchange in 2023, now operates as ICE Mortgage Technology. The platform provides integrated software, data, and analytics spanning loan-level mortgage data, property records, and origination and servicing workflows across the entire mortgage lifecycle.
Key features
- Loan-level mortgage data representing majority of U.S. mortgage market
- Comprehensive property records and nationwide public record integration
- Mortgage Monitor benchmark reports and Originations Market Monitor data
- End-to-end mortgage processing, underwriting, and servicing automation
- Integrated software solutions for title, closing, default management, and secondary markets
Best for
ICE Mortgage Technology serves mortgage lenders, servicers, title companies, and secondary market participants. Organizations seeking integrated workflows from origination through servicing, combined with loan-level data and property analytics, will find the platform most valuable.
Pricing
ICE Mortgage Technology pricing is enterprise-focused and customized. Costs vary based on transaction volume, data modules, and software solutions selected. Contact ICE directly for detailed quotes and implementation terms.
ATTOM Data Solutions
ATTOM delivers comprehensive property data drawn from public records, including tax assessor files, deed records, mortgage data, foreclosure information, and environmental risk data covering 160+ million U.S. properties. Data is processed through a rigorous 20-step validation process and offered in multiple delivery formats.
Key features
- 160+ million property records with 99% population coverage and 3,000+ county sources
- Tax, deed, mortgage, foreclosure, and boundary data with monthly updates
- AI-ready property data structured for machine learning and analytics applications
- Flexible delivery via APIs, bulk data licensing, cloud delivery, and MCP server access
- Valuation models, market trend reports, and foreclosure intelligence for multiple industries
Best for
ATTOM is ideal for real estate investors, financial institutions, insurers, and data-driven proptech platforms needing comprehensive property records and market analytics. The platform’s AI-ready structure suits organizations building automated valuation models, risk assessment tools, and data-enrichment applications.
Pricing
ATTOM offers flexible pricing tiers based on data scope, delivery method, and use case. API access, bulk data licensing, and cloud solutions are available with custom pricing. Contact ATTOM’s sales team for quotes tailored to your specific requirements.
HouseCanary
HouseCanary provides automated valuation models, property-level analytics, and market data designed for real estate professionals, appraisers, and investors. The platform combines property records with machine learning to deliver valuations and market insights at scale.
Key features
- Automated valuation models for property estimation and appraisal support
- Property analytics and detailed property-level market data
- Integration with real estate platforms and workflow systems
- Historical valuation trends and market performance tracking
- Bulk valuation and analytics capabilities for portfolio analysis
Best for
HouseCanary serves appraisers, real estate investors, and lenders seeking accurate property valuations and comparative market data. The platform is particularly useful for professionals needing automated valuations, market comps, and property analytics to support valuation decisions and portfolio monitoring.
Pricing
When searching their website to write this article, we couldn’t find standard public pricing. HouseCanary pricing typically operates on a per-valuation or subscription basis depending on volume and feature tier. Prospective customers should contact HouseCanary directly for a quote.
Altos Research
Altos Research offers real-time market analytics and trend analysis tools designed to provide real estate professionals with actionable local market insights. The platform aggregates MLS and market data to track price trends, inventory dynamics, and market momentum.
Key features
- Real-time market analytics and price trend tracking updated daily or weekly
- Inventory analysis and supply-demand metrics for local markets
- Market momentum and price movement indicators
- Comparative market analysis tools and dashboard reporting
- Focus on residential market conditions at local and regional levels
Best for
Altos Research is best for real estate agents, brokers, and investors tracking dynamic local market conditions and price trends. The platform’s real-time focus suits professionals who need up-to-date competitive intelligence and market momentum data for pricing strategy and client communications.
Pricing
Public pricing details for Altos Research are not prominently displayed on their website. Pricing is generally subscription or membership-based and varies by geographic market and feature tier. Contact Altos Research for current rates and available plans.
FAQ
What is the main difference between Redfin Data and these alternatives?
Redfin Data is free and focuses on aggregate market-level metrics from its own brokerage and MLS data. Alternatives like Dwellsy IQ specialize in raw unit-level rental data; CoreLogic and ATTOM offer deeper property records and risk analytics; Zillow provides free home value and rent indices; and platforms like HouseCanary and Altos Research emphasize valuations and real-time market momentum. Your choice depends on whether you need public aggregate data, raw transaction-level feeds, valuations, or alternative data signals.
Which platform is best for rental data and income analysis?
Dwellsy IQ stands out for unit-level rental data sourced from property management systems, making it ideal for rental market analysis, appraisals requiring income inputs, and portfolio benchmarking. Zillow Research also publishes a Rent Index, but it’s market-level and estimated from listings. For detailed rental comps, Dwellsy IQ is the specialized choice.
Are any of these platforms free?
Zillow Research publishes free datasets via CSV download and API access. NAR Data offers some free public statistics, though member access provides more detailed breakdowns. All other platforms—Dwellsy IQ, CoreLogic, Black Knight/ICE, ATTOM, HouseCanary, and Altos Research—require paid subscriptions, quotes, or custom licensing.
Which alternative is best for appraisers and valuation professionals?
HouseCanary specializes in automated valuations and property analytics, making it a natural fit for appraisers. Dwellsy IQ supports the income approach through rental comps. ATTOM and CoreLogic offer comprehensive property data and comparable sales data that appraisers can use to build valuation support. Your choice depends on whether you prioritize automated models, rental income, or manual comp analysis.
How do I choose between enterprise platforms like CoreLogic and ATTOM?
CoreLogic excels in loan-level mortgage data and risk modeling for lenders and servicers. ATTOM offers broader property record coverage and AI-ready data structured for machine learning applications. If you’re a lender focused on origination risk, choose CoreLogic; if you need comprehensive property data for analytics and proptech applications, ATTOM is stronger. Both support custom pricing and integrations.
