An online estimate can start a conversation about your home's value. Before choosing a list price, compare that number with the home's actual condition, relevant sales and the alternatives buyers can choose today.
Treat a Zestimate as one estimate, not a listing-price instruction. For a Palm Beach County sale, check the home facts, identify genuinely comparable properties and explain the differences. A comparative market analysis (CMA) is an agent's pricing opinion; an appraisal is a separate valuation. None guarantees the eventual sale price.
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If the online number differs from your expectations, first ask why. An estimate that is higher or lower than your target does not establish that either number is correct.
This countywide guide is a seller's checklist for comparing an estimate, a CMA and an appraisal. For land, systems and builder-comparison questions in the western communities, use our Acreage, Loxahatchee and Westlake guide. The broader Zestimate background article covers a different part of the conversation.
What to Check Beyond the Screen
Use this as a property review list, rather than a claim that Zillow ignores every one of these details. A model may have information about a feature while lacking a current inspection or the full documents behind it.
- Land and usable space: compare the survey, recorded easements, drainage and permitted use with what you intend to market.
- Road and legal access: review access rights, maintenance obligations and how a buyer would use the property.
- Water systems: where a home uses a well, gather the equipment, treatment and maintenance records; a test is different from a database entry.
- Septic condition: where applicable, obtain records and an appropriate inspection before assuming the system has no issues.
- Association obligations: read the actual covenants, fees, assessments and use restrictions. Neither an HOA nor its absence automatically establishes a premium.
- School information: verify address-based assignments with the district; do not infer a price adjustment from a school label.
- Insurance information: obtain property-specific quotes and relevant roof, electrical and mitigation records. An estimate of value is not insurance approval.
These questions help describe the home accurately. The effect of any difference on price needs evidence from the relevant market, rather than a fixed adjustment or a guaranteed dollar premium.
Price Per Square Foot Needs Context
A square-foot figure can help compare homes, but it is not a complete valuation. Start by confirming which area is being measured and whether the properties are sufficiently alike.
- Separate living area from barns, garages, guest structures and other improvements.
- Compare lot characteristics, location, legal use and condition.
- Review additions and permits rather than assuming two reported area figures describe equivalent homes.
- Distinguish repair cost from market value: money spent does not automatically return the same amount at sale.
Fannie Mae's comparable-sales guidance calls for similar physical and legal characteristics, including site, finished area, style and condition. It is appraisal guidance for covered lending, not a formula that sets your list price.
How the Zestimate Changes
Zillow's current explanation says the model combines public records, MLS information and owner-supplied facts. Listing signals and market trends also matter, so describing it as using only last quarter's closed sales is inaccurate.
An off-market estimate can change when the home is listed because additional information becomes available. That change does not, by itself, validate either the old estimate or the asking price.
If the home facts are wrong, document and correct them through the appropriate channels. Do not expect a particular update to produce your preferred number. Keep a dated copy of the estimate and the information you supplied so you can discuss the difference clearly.
Test Your Price Against the Market
An ambitious asking price can leave a home competing poorly against alternatives; a price set too low can also create risk for the seller. There is no universal rule that one error always costs more, or that a particular launch window guarantees an outcome.
- Review the homes a buyer could choose instead, including their condition and terms.
- Agree on how you will assess showing activity, feedback and new competing listings.
- Check whether a changed price is supported by new evidence rather than treating every reduction as weakness.
- Keep your timing needs and carrying costs in the decision, without assuming a promised sale date or bidding war.
A pricing plan should have a reason and a review process. Neither an online estimate nor an agent's confident opinion removes the uncertainty.
Build a Comparable-Sales Review
Ask Brian to show the evidence behind a proposed range, not just the range itself.
- Relevant closed sales: why each property is comparable, when it sold and which important differences remain.
- Current competition: active and pending alternatives, recognizing that asking prices and pending terms are not completed sales.
- Condition and terms: the evidence for any adjustment, including concessions where known.
- Property documents: records, permits, inspections and insurance information that a buyer may need.
- Limits: which facts still need confirmation and what could change the proposed strategy.
Fannie Mae's adjustment guidance emphasizes market-supported analysis. A concession or improvement is not automatically a dollar-for-dollar change in value.
A CMA supports a seller's decision; it is not a substitute for a required appraisal. The CFPB explains that an appraisal is an independent assessment of property value, and a lender may need one for a purchase or refinance. Ask your lender which valuation process applies.
Frequently Asked Questions
How accurate is a Zestimate for my Palm Beach County home?+
Why can an estimate be higher or lower than a pricing review?+
Should I use the Zestimate when setting a list price?+
Is a comparative market analysis the same as an appraisal?+
Does fixing my home facts guarantee a higher Zestimate?+
Does a local pricing review guarantee what my home will sell for?+
Selling a Home Before You Buy?
Compare the sale plan with your next purchase timeline. A home-value review can help frame the discussion, but the sale proceeds and closing date remain uncertain until the transaction is completed.
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Buyer Edition. Unsubscribe anytime. Brian: 561-201-4717. Lucy Lopez: 561-285-8809.
Thinking About Selling in Palm Beach County?
Bring the estimate, your property records and your timing questions. Brian can help you compare the evidence and develop a pricing plan with a clear review process.
Call or text Brian: 561-201-4717
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Brian Wilder
Wilder Real Estate Group at Keller Williams Realty
1,500+ homes sold. Investing in Palm Beach County real estate since 1996, licensed agent since 1998.
561-201-4717
Lucy Lopez: 561-285-8809
Brian@WilderREG.com
Data date: October 28, 2026. Sources: Zillow Zestimate explanation; Fannie Mae Selling Guide comparable-sales and adjustment guidance; CFPB appraisal explanation. No local error-rate study or sale-price guarantee is presented.