By Valerie Beausoleil, Beausoleil Realty Group
Updated October 27, 2026

An online estimate can be a useful starting point, but it is not a confirmed sale price. Before using a number to plan a move, identify what it represents, what information supports it and which property details still need review.

What is a Zestimate?

Zillow describes the Zestimate as an estimate of market value based on its model and available information. Zillow states that it is not an appraisal and recommends supplementing it with other research, including a professional appraisal or comparative market analysis.

Which online home estimator is most accurate?

There is not enough property-specific evidence in a single displayed estimate to declare one service the best choice for your home. When comparing Zillow, Redfin or another service, examine the facts shown, the date and any explanation of the model's coverage. A difference between estimates is a reason to investigate, not proof that the highest number is correct.

Separate the numbers you may encounter

  • Online estimate: a model-based output using the provider's available data.
  • Tax assessment: a value used for the applicable property-tax process; check the assessment date and purpose.
  • Asking price: the amount a seller requests, not proof of what a buyer will pay.
  • Comparative market analysis: a broker's property-specific comparison used to inform pricing discussions; it is not an appraisal.
  • Appraisal: a separate professional valuation prepared for a defined purpose.

How should comparable sales be selected?

Start with relevant closed sales, then evaluate differences in property type, size, condition, layout, lot, location, sale date and transaction circumstances. Active and pending listings can provide competitive context, but an active asking price is not a closed sale. ZIP code or proximity alone does not make a property comparable.

Information to gather before a value conversation

  • Confirm recorded property details and note any discrepancies.
  • List improvements, dates and available permits or receipts.
  • Identify known repairs and condition issues.
  • Gather HOA information and any relevant restrictions or access rights.
  • Explain your intended timing so the pricing discussion uses an appropriate market context.

Any estimate remains subject to its assumptions and changing conditions. A broker's price recommendation does not guarantee an offer, appraisal or final sale price.

Review our selling process, compare renovation decisions before listing, or use the move-or-stay planning quiz to organize your next questions.

Ask BRG for a property-specific pricing conversation rather than choosing an estimate in isolation.
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