Quick Answer
Why is my Oahu home’s Zillow estimate probably wrong?
The real gap isn’t stale data. Zillow can pull comps the day they close and still get it wrong, because seller credits negotiated at closing are not public record. In August 2026, buyers negotiated $918,212 in seller credits across 230 closed sales in my four-region sold report (Hawaii Kai, Kailua, Diamond Head, and Ewa Plain), and credits showed up on 54 of those 230 sales, the largest a single $85,000 credit on a Diamond Head single-family home. Zillow has no way to see any of it, because that number lives in the closing statement, not the public record.
By Aksana Tupalskaya | August 9, 2026
| Market Indicator | Figure | Source / Timeframe |
|---|---|---|
| Total seller credits, four-region report | $918,212 across 230 closed sales | My MLS sold report, August 2026 |
| Largest single credit | $85,000 (Diamond Head single-family) | My MLS sold report, August 2026 |
| Recorded vs. actual value, a Hawaii Kai condo | $495,000 recorded / $473,272 actual (-4.5%) | My MLS sold report, July 2026 |
| Share of August sales carrying a credit | 54 of 230 sales (about 1 in 4) | My MLS sold report, August 2026 |
What this tells me as the numbers agent for Oahu sellers: a Zestimate is only as good as the public record it’s built on, and across the four regions I track, roughly one in four August closings still carried a credit the public record never shows.
Almost every seller I talk to has already checked their Zestimate before we speak. It’s a reasonable starting point for curiosity. It is not a substitute for an actual market analysis, and the reason isn’t what most people assume.
The seller credit blind spot
When a home sells on Oahu, the recorded price at the county is the contract price. Automated valuation models, Zillow included, pull comps from that recorded price. They cannot see whether the seller handed the buyer a credit at closing, because that number lives in the closing statement, not in any public database.
This matters even when Zillow’s comps are genuinely fresh. Having the right comparable sale from last week doesn’t help if the model doesn’t know that sale actually included a $15,000 credit toward the buyer’s closing costs. The recorded number and the real number are two different prices, and only one of them is public.
A real July 2026 example
Here’s what this looked like in my most recent sold report, straight from HiCentral MLS. A two-bedroom condo in Hahaione-Lower listed at $515,000 and recorded as sold for $495,000. That $495,000 is the number that shows up everywhere, including in any automated estimate. What actually happened: the seller gave the buyer a $21,728 credit at closing, so the real transaction value was $473,272, nearly 4.5% below the number everyone can see. That’s before any other closing costs, commission, or conveyance tax come out. It’s simply the number Zillow is missing entirely.
That wasn’t an isolated case, and the pattern held into August. Across the 66 Kailua and Hawaii Kai closings in July, ten sales carried a negotiated seller credit, adding up to $85,056 total. My August sold report, now expanded to Hawaii Kai, Kailua, Diamond Head, and Ewa Plain, found the same pattern at a bigger scale: 54 of 230 sales carried a credit, totaling $918,212, with the single largest credit, $85,000, on a Diamond Head single-family home.
- A West Marina single-family home recorded at $1,060,000 with a $20,000 credit
- A Kalaheo Hillside single-family home recorded at $2,415,000 with a $15,000 credit
- An Aikahi Park condo recorded at $829,000 with an $8,278 credit
Every one of those recorded prices is what an automated estimate sees. None of them show the credit underneath.
What the algorithm still can’t see about your specific home
Beyond the credit gap, there are things about your own property no automated model can weigh correctly:
- Recent renovations or deferred maintenance. A kitchen remodel or a roof that needs replacing doesn’t show up in public records.
- Lot specifics. View, slope, and usable yard space vary enormously even on the same street and rarely get weighted accurately.
- Leasehold versus fee simple status on properties where that distinction applies, which materially changes value and isn’t always reflected correctly.
What actually gets you an accurate number
A real market analysis starts with closed sales adjusted for the actual seller credit, not the recorded price. It accounts for your home’s actual condition, not a generic estimate of it. And it comes from the closing data itself, not a third-party site working from an incomplete public record.
This is exactly the kind of question I walk sellers through before we ever discuss a list price: what actually closed nearby, and what the seller really walked away with after credits.
Frequently Asked Questions
Why doesn’t Zillow show seller credits?
Seller credits are documented in the closing statement, not the public deed record. Zillow and similar sites pull from public records, so they show the recorded contract price with no way to know a credit was involved.
How much did seller credits affect Oahu sales in July 2026?
Across 66 closed sales in Kailua and Hawaii Kai, buyers negotiated $85,056 in total credits, with the largest single credit at $21,728, on a home that recorded at $495,000 but had a real transaction value of $473,272 once the credit is factored in.
Is Zillow’s Zestimate ever accurate for Oahu homes?
It can be closer to accurate in a month with fewer credited sales, but the model has no way of knowing which comps in its data actually included a credit. That blind spot exists every month, even in a month with fresher comps.
How often do Oahu sales actually include a seller credit?
In July 2026, 10 of 66 closed sales in Kailua and Hawaii Kai, roughly 1 in 7, carried a documented credit. It’s common enough that ignoring it skews the picture regularly, not just occasionally.
What’s a better way to find out what my home is actually worth?
A market analysis using closed sales adjusted for the real seller credit and your home’s specific condition, pulled directly from MLS closing data rather than the public record.
Getting past the algorithm
Your Zestimate is working from the recorded price, not the real one. Want to see what homes near you actually sold for, including the seller credits Zillow can’t see? Get the free monthly Kailua & Hawaii Kai sold report at islandlivingoahu.com/credits.
