CoreLogic is a data company that appraisers use to research property values and comparable sales

CoreLogic maintains a database of property records, sales history, and market data across the United States. Real estate appraisers subscribe to CoreLogic's services to look up information about homes — past sale prices, property characteristics, tax assessments, and recent transactions in a neighbourhood. When an appraiser needs to find comparable properties (homes similar to the one being valued), CoreLogic's tools help them search by location, size, age, and condition.

CoreLogic does not set property values itself. Instead, it provides the raw information that appraisers use to make their own judgments about what a home is worth. An appraiser might find five recent sales of similar homes through CoreLogic, then decide which ones are most relevant to the property they are appraising and adjust for differences in condition or features.

The company also sells data to mortgage lenders, real estate agents, and title companies. For appraisers, the main value is speed — instead of manually searching county records or calling other agents, they can run a search in CoreLogic and see comparable sales in minutes.

Key Takeaways

  • CoreLogic is a subscription database that appraisers use to find comparable property sales and property records in their area.
  • Appraisers use CoreLogic data to support their own value estimates, not to replace their judgment or site inspection.
  • CoreLogic covers most of the United States but may have gaps in rural areas or very new subdivisions where sales data is sparse.
  • An appraiser's final value opinion is their own; CoreLogic provides information, not the appraisal itself.

What information CoreLogic contains

CoreLogic's database includes public records from county assessors, deed recordings, and multiple listing services (MLS). This means it holds property address, lot size, square footage, number of bedrooms and bathrooms, year built, roof type, garage information, and recent sale prices. The data comes from public sources, so CoreLogic is not creating new information — it is aggregating what already exists in county records and making it searchable.

The company also includes property tax assessments, which appraisers sometimes cross-check against their own estimates. If a home's assessed value is very different from the appraised value, that can signal either a data error or a real change in market conditions since the last assessment.

CoreLogic's comparable sales search is the feature appraisers use most often. An appraiser can filter by sale date (usually looking at sales within the past three to six months), distance from the subject property, and property characteristics. The system then shows a list of homes that sold, with their sale prices and key features.

How appraisers use CoreLogic in their work

An appraiser typically begins by entering the subject property's address into CoreLogic and running a search for comparable sales within a set radius — often one-quarter to one-half mile in urban areas, or wider in rural areas where homes are more spread out. The appraiser then reviews the list and selects three to five sales that are most similar to the property being appraised.

The appraiser does not straightforward average the prices of those comparable sales. Instead, they adjust each comparable sale's price up or down based on differences from the subject property. If a comparable sold for $300,000 but has an extra bathroom, the appraiser might subtract $10,000 to account for that difference. If another comparable is newer, the appraiser might add value. These adjustments are the appraiser's professional judgment, informed by their knowledge of the local market.

CoreLogic data is one input among several. The appraiser also walks through the property, photographs it, notes its condition, and considers factors that may not show up in the database — such as a recent kitchen renovation, foundation issues, or proximity to a noisy highway. The final appraised value reflects all of this, not just what CoreLogic shows.

Limitations of CoreLogic data

CoreLogic's data is only as current as the public records it pulls from. In some counties, deed recordings take weeks to appear in the system, so very recent sales may not show up when ready. This means an appraiser working in early January might not yet see sales that closed in late December.

Rural areas and new subdivisions often have sparse data. If a property is in a location where few homes have sold recently, CoreLogic may return only one or two comparables, forcing the appraiser to look further away or use older sales. In these cases, the appraiser's judgment becomes more important because there is less recent market data to rely on.

CoreLogic also does not capture every detail about a property's condition. The database might show that a home has three bedrooms, but it will not note whether the roof is in poor condition or the electrical system is outdated. That is why the appraiser's physical inspection is essential — CoreLogic provides the framework, but the appraiser fills in the details.

CoreLogic versus other appraisal tools

Appraisers may also use other data sources alongside CoreLogic. The local MLS (multiple listing services) database often contains more detailed information about homes currently for sale or recently sold, including photos and agent notes. County assessor websites provide tax records and sometimes property sketches. Some appraisers subscribe to other data platforms like Zillow's professional tools or regional databases.

CoreLogic is popular because it aggregates data from many sources into one searchable platform, saving appraisers time. However, no single database is perfect. An experienced appraiser will cross-check CoreLogic data against the MLS, county records, and their own local knowledge to make sure the information is accurate and current.

How CoreLogic data affects your appraisal

If you are having a home appraised for a mortgage, the appraiser's use of CoreLogic means the value estimate is based on documented sales of similar homes in your area, not guesswork. This is good for you because it makes the appraisal more defensible and harder to dispute. If you disagree with the appraised value, you can ask the appraiser to explain which comparables they used and why they adjusted for certain features.

If CoreLogic's data about your property is incorrect — for example, if it lists your home as having two bathrooms when you have three — you can contact CoreLogic directly to request a correction. However, this takes time, and the correction may not appear in the appraiser's report if they have already completed their work. If you notice errors before the appraisal, you can point them out to the appraiser, who can then verify the correct information and note it in their report.

Frequently Asked Questions

Can I see what CoreLogic has on my property?

CoreLogic does not offer a free public search tool, but you can view much of the same information through your county assessor's website or Zillow, which pulls data from CoreLogic and other sources. If you want to see exactly what CoreLogic has on file, you can contact CoreLogic directly, though they may charge a fee for a detailed report.

What if CoreLogic has the wrong information about my home?

You can submit a correction request to CoreLogic through their website. Corrections typically take 30 to 60 days to process. If an appraisal is underway, notify the appraiser of the error directly — they can verify the correct information and note it in their report without waiting for CoreLogic to update.

Does CoreLogic determine my home's value?

No. CoreLogic provides comparable sales data and property records, but the appraiser interprets that data and makes the final value judgment. The appraiser adjusts comparables, considers the property's condition, and applies their professional informed. CoreLogic is a tool, not the decision-maker.

Why did the appraiser use a comparable that sold far from my home?

In areas with few recent sales, appraisers sometimes use comparables from further away or older sales to have enough data points. They will note these adjustments in the appraisal report and explain why the comparable is still relevant — for example, if it is in a similar neighbourhood or has comparable market conditions despite the distance.