Sale Market Statistics, New Data Points and Queries

This API release added sale market statistics and new aggregate market data points, MLS numbers and listing agent information for property listings, HOA fee amounts, and listing and property transaction history.

Check out the highlights below:

Property Records (/properties)

• We've added a saleDateRange query parameter, which accepts a numeric value in days. You can use this parameter to search for properties that were sold within the specified date range
• Property records will now include an hoa field if they are part of a homeowner's association. This field will contain a fee property, indicating the monthly HOA fee or assessment amount
• Property records will now include an owner.type property, with possible values of "Individual" or "Organization", indicating the type of the entity that owns the property
• Property records will now include a history field, which contains the sale transaction history of that property

Property Valuation (/avm/value, /avm/rent/long-term)

• We've added several additional fields to the comparable property records returned by the AVM endpoints:
  • listingType: the type of the comparable property listing, with possible values of "Standard", "New Construction", "Foreclosure" or "Short Sale"
  • removedDate: the date the comparable property listing was removed from the market
  • daysOnMarket: the number of days the comparable property listing was active on the market before being removed

Property Listings (/listings/sale, /listings/rental/long-term)

• We've added several additional fields to the property listing records returned by the listing endpoints:
  • hoa: for listings that are part of a homeowner's association, this field will contain a fee property, indicating the monthly HOA fee or assessment amount
  • listingType: the type of the listing, with possible values of "Standard", "New Construction", "Foreclosure" or "Short Sale"
  • mlsName: the MLS name of the listing, if listed on the Multiple Listing Service (MLS)
  • mlsNumber: the MLS number or unique identification number of the listing, if listed on the Multiple Listing Service (MLS)
  • listingAgent: includes the name and contact information of the listing agent of the property
  • listingOffice: includes the name and contact information of the listing office or brokerage of the property
  • builder: for new construction listings, includes the name and contact information of the builder of the property, as well as the name of the new development community or subdivision

• Listing records will now include a history field, which contains the sale or rental listing history of that property

Market Statistics (/markets)

• We've added aggregate sale market statistics and property sale price averages for most zip codes in the US as part of the response from this endpoint:
  • Sale market statistics will be returned in the top-level saleData field
  • Historical sale market statistics are available from January 2024
  • You can control the type of market statistics data returned by this endpoint with the new dataType query parameter, with supported values of "Sale", "Rental" or "All"

• Both sale and rental market statistics will now include several additional fields and metrics, beginning in August 2024:
  • Median price or rent
  • Average/median/min/max price or rent per square foot
  • Average/median/min/max square footage of listed properties
  • Average/median/min/max days on the market of listed properties
  • The number of new property listings added in a given month

• Both sale and rental market statistics will now include data and averages broken down by property type, in addition to the existing breakdown by bedroom size:
  • Data broken down by property type will be returned in the dataByPropertyType field
  • Historical data broken down by property type is available from August 2024

Integration & Support Resources

• We've released a public PostMan workspace and an API endpoints collection that includes a full reference of our available endpoints, their supported query parameters and example responses
• We've added a public GitHub workspace that includes several additional resources for integrating with our API, including our OpenAPI specification and our public PostMan collection export

Our API documentation has been updated to reflect the above changes and you can view it at any time to review our data sets and API endpoints in more detail.

If you have any questions about this update, or have additional feature requests or suggestions, contact us by launching the live chat at the bottom right of this website, or by sending an email to [email protected].

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Getting Started

To get started using our property data API, create a RentCast account to access your API dashboard and generate your first API key. Read this guide for an in-depth walkthrough.