Offer a price to everyone, and you buy your own mistakes.

Zillow Paid About $412,000. Then Asked $387,000.

Two weeks separated a house purchase from a lower asking price. Zillow's own explanation reveals two problems with turning an estimate into a business: who accepts today, and what a house will fetch months later.

AI businesses8 min read · Checked 2026-10-16 · Sources and checks

One house, two prices

In September 2021, Zillow bought a Tolleson, Arizona, rental for about $412,000, Bloomberg reported.C48 Two weeks and light repairs later, Zillow listed that house at $387,000.C48 The listing was a request, not a completed resale.C48

The purchase and the listing

  1. Paid to the owner

    About $412,000C48

    Bloomberg reported a purchase of about $412,000 in September 2021 for a rental property in Tolleson, Arizona.C48

  2. Asked of the next buyer

    $387,000 asking priceC48

    After light repairs, Zillow listed that house two weeks later at $387,000, according to Bloomberg.C48

The second price was a listing, not a recorded sale or a realized loss.C48

A Tolleson rental house: Zillow's purchase price beside its asking price two weeks later, as reported by Bloomberg.C48 The listing amount was not a completed sale.C48From the records · S23

There is a difference between putting a value on someone else's house and paying to own it. Where could a promising estimate become a bad purchase?

Zillow Offers promised convenience: owners could avoid preparing a listing, hosting viewings and arranging open houses.C122 Zillow would acquire the property, make repairs and offer it to another buyer.C02 In February 2021, the company announced that eligible properties in more than twenty cities could receive an initial cash offer based on the Zestimate, its automated valuation.C05 Jeremy Wacksman, then its chief operating officer, said the move demonstrated confidence in that estimate.C07

The first number was only the beginning. Zillow's description included pricing analysts, a local broker's valuation and a visit inside the house before a final offer; repairs could reduce the amount, and separate charges affected the seller's proceeds.C17C18C19C20C25C127 Its published terms left an owner free to decline before signing the contract.C22 People helped set the price.C17C18C19 Another person decided whether to take it.C22

The purchases outgrow the sales

Zillow accelerated its buying through the first three quarters of 2021.C12C31C52 By the third quarter, acquisitions substantially exceeded sales.C52

The pace of buying

  1. First quarter purchases

    1,856 homesC12

    Zillow acquired 1,856 homes during the first quarter of 2021.C12

  2. Second quarter purchases

    3,805 homesC31

    During the second quarter of 2021, it purchased 3,805 homes.C31

  3. Third quarter purchases

    9,680 homesC52

    Purchases reached 9,680 homes during the third quarter of 2021; sales numbered 3,032.C52

  4. Third quarter sales

    3,032 homesC52

    Zillow sold 3,032 houses during the third quarter of 2021.C52

Quarterly transaction counts; these are not counts of homes held on a particular date.C12C31C52

Quarterly home purchases rose sharply during 2021; in the third quarter Zillow acquired 9,680 houses and sold 3,032.C12C31C52 These are transactions during each quarter, not a count of inventory on one date.C12C31C52From the records · S09 · S08 · S03

On October 18, the company stopped taking additional purchase contracts for the remainder of 2021, attributing the pause to a renovation backlog and limits on operating capacity.C37 Analyst Mike DelPrete checked a different part of the business: the prices.C41 On October 25, his Phoenix comparison put the median listing $29,000 below Zillow's acquisition price.C41 Again, he was comparing an asking price with a purchase, rather than reporting a finished sale.C41C42

Zillow's own explanation followed in its November 2 quarterly letter.C54 It said an unusually large share of requested offers had turned into signed purchases because it had unintentionally acquired homes above its revised forecasts of what those properties would sell for.C54 A rising acceptance rate had accompanied purchases it no longer expected to recover at resale.C54

The company also explained the time problem: its business required predictions of home prices three to six months into the future.C59 Understanding the purchase means looking at both decisions: the owner's choice now, and Zillow's estimate of a later sale.

Which offers become houses?

Start with an illustration Plain Stories made, rather than a reconstruction of those transactions.C106C130 Its simulated houses each have an assumed value of $350,000.C106 Every owner knows that value and accepts only a price above it; an offer below it gets refused.C117C130 This deliberately removes the other reasons someone might sell.

Under that rule, the low estimate leaves the simulated buyer with no house.C117 The high estimate puts a house in its holdings.C117 Now try the same choice across the illustration's thousand offers.C106

Which offers become purchases?

Illustrative model. Every home is assumed to be worth $350,000. Owners know that assumed value and accept only offers above it. This view has no service fee.

Offers per error interval · tallest bar: 85 offers

Signed estimate errors in the saved modelThe full set contains underestimates and overestimates. Only the 500 offers above assumed value are accepted. Bars count saved offers in equal-width error intervals; the tallest bar has 85 offers.-35.00% to -32.81%: 1 offers; 0 accepted-32.81% to -30.62%: 0 offers; 0 accepted-30.62% to -28.44%: 2 offers; 0 accepted-28.44% to -26.25%: 2 offers; 0 accepted-26.25% to -24.06%: 4 offers; 0 accepted-24.06% to -21.88%: 7 offers; 0 accepted-21.88% to -19.69%: 11 offers; 0 accepted-19.69% to -17.50%: 17 offers; 0 accepted-17.50% to -15.31%: 23 offers; 0 accepted-15.31% to -13.12%: 33 offers; 0 accepted-13.12% to -10.94%: 42 offers; 0 accepted-10.94% to -8.75%: 54 offers; 0 accepted-8.75% to -6.56%: 65 offers; 0 accepted-6.56% to -4.38%: 73 offers; 0 accepted-4.38% to -2.19%: 81 offers; 0 accepted-2.19% to 0.00%: 85 offers; 0 accepted0.00% to +2.19%: 85 offers; 85 accepted+2.19% to +4.38%: 81 offers; 81 accepted+4.38% to +6.56%: 73 offers; 73 accepted+6.56% to +8.75%: 65 offers; 65 accepted+8.75% to +10.94%: 54 offers; 54 accepted+10.94% to +13.12%: 42 offers; 42 accepted+13.12% to +15.31%: 33 offers; 33 accepted+15.31% to +17.50%: 23 offers; 23 accepted+17.50% to +19.69%: 17 offers; 17 accepted+19.69% to +21.88%: 11 offers; 11 accepted+21.88% to +24.06%: 7 offers; 7 accepted+24.06% to +26.25%: 4 offers; 4 accepted+26.25% to +28.44%: 2 offers; 2 accepted+28.44% to +30.63%: 2 offers; 2 accepted+30.63% to +32.81%: 0 offers; 0 accepted+32.81% to +35.00%: 1 offers; 1 accepted

Estimate below / above assumed value

Rejected offersAccepted offers

Showing all 1,000 offers; 500 are accepted.

The same model, before and after owners choose
Offers countedHomesMean signed estimate error
All offers1,0000.00%
Accepted offers500+8.16%

Positive and negative errors cancel across all offers; individual estimates still have errors. Among accepted offers, the average price exceeds assumed value by $28,562. This model illustrates selection; it does not measure Zillow’s actual losses or sellers’ knowledge.

Saved no-fee simulation with assumed known home values and overpayment-only acceptance.C106C108C117C130C134 These are illustrative offers, not Zillow transactions or a measurement of its losses.C130Saved illustrative calculation · S30 · Error-size inputs: S17, S18

The filter changes which mistakes remain. The low offers can balance the high ones in a score covering every estimate; they cannot balance the prices of houses the buyer never acquired.C108C117C134 In this illustration, a balanced set of mistakes becomes an expensive set of purchases.C108C117C134

Economists Greg Buchak, Gregor Matvos, Tomasz Piskorski and Amit Seru describe the related problem as adverse selection: an owner who can readily sell elsewhere mainly chooses the instant buyer when that buyer values the home too highly.C91 The seller's choice changes the mix of properties the business receives.C91

But remember the convenience being sold. In the economists' calibrated model, most transactions with these buyers involve owners keen to move quickly.C129 Such an owner need not wait for an excessive offer. The researchers' five-market data from 2013–2018 also showed these businesses buying below comparable listed properties and earning a resale spread of roughly 5% of the purchase price before costs.C95 An illustration that permits only overpayments leaves out a valuable part of the service.

Method and limits

The illustration uses a bell-shaped distribution of errors, with their size calibrated to Zillow's published 6.9% median error for off-market Zestimates in June 2021.C28C130 A median divides the errors into equal halves by size; it is not the largest possible miss.C114 The 6.9% describes estimates of homes not listed for sale, rather than an independently measured error rate for the final offers Zillow made after its additional pricing steps.C17C18C19C28C130

With a simplified 2.5% deduction, the illustration accepts 401 offers and averages about $24,900 in overpayment per purchase.C107 Zillow advertised that percentage as its average service charge, separately from selling costs, closing costs and repairs; deducting that one fee does not reproduce the full transaction.C25C107C127

Nor does the illustration match Zillow's acceptance rate.C60C130 Zillow said it converted about one in ten serious sellers requesting an offer, while the version without fees accepts half its simulated owners.C60C130 Its output demonstrates the stated selection rule; it does not measure how much of Zillow's loss that rule explains.C106C117C130

The price months later

The illustration holds each home's assumed value still while an owner makes a choice.C106C117 Zillow's real business required a view of the future.C59

Rich Barton, its co-founder and chief executive, said the unpredictability of home-price forecasts had exceeded expectations.C57 He and finance chief Allen Parker wrote that their misses had gone both ways, by more than they had modeled as possible.C58 On the November 2, 2021 earnings call, Barton said the volatility made the company resemble a “leveraged housing trader”.C135 Borrowing to own houses increases exposure to changes in their prices.

The price needed months ahead

  1. TodayA home’s current estimated value
  2. 3–6 months laterThe future selling price Zillow said it needed to forecast

A forecast horizon, not a price trend. The future price is unknown; no price curve is shown.

Zillow said its home-buying business depended on anticipating selling prices three to six months ahead.C59 This shows the forecast horizon, without inventing a price path or an eventual sale.C59Zillow’s November 2, 2021 shareholder letter · S03

This is the second place a promising estimate can become a bad purchase: the price it anticipates may belong to a future that does not arrive. Zillow's letter linked its higher acceptance rate to purchases above updated resale expectations; the same account also described a forecasting problem.C54C58C59

The company cited renovation capacity and other operational difficulties as well, aggravated by the pandemic and difficulties with labor and supply chains.C62 The selection illustration isolates one risk. It cannot tell you how much came from that risk, changing expectations or getting houses ready to sell.C54C59C62C130

Closing the business

On November 2, 2021, Zillow's board opted to close Zillow Offers.C61 The decision reached beyond the houses: CNN reported Zillow's planned reduction of roughly 2,000 jobs, while the company's filing put the cut at around a quarter of its workforce.C63C64

The cost of closing

  1. Business result

    $630 million after taxC79

    Zillow Offers recorded a $630 million loss for 2021, net of income taxes.C79

  2. Planned jobs cut

    Roughly 2,000 jobsC64

    Zillow announced a reduction of about 25% of its workforce; CNN reported roughly 2,000 jobs.C63C64

  3. Completion

    Zillow reports that it finished winding down the business in the third quarter of 2022.C78

The closure concerned Zillow Offers.C78 Zillow's continuing business reported results for the quarter ending June 2026.C104

The business closed with a $630 million loss for 2021 after income taxes; Zillow planned a workforce cut of about 25%, roughly 2,000 jobs as reported by CNN.C63C64C79 Zillow dates completion of the wind-down to the third quarter of 2022.C63C64C78C79From the records · S02 · S05 · S29 · S31 · S14

The houses took time to sell. By the end of June 2022, purchases had ceased and seventy-one remained; Zillow reports the wind-down finished during the following quarter.C75C78 As recorded in its results for the quarter ending June 2026, Zillow itself continued operating.C104

There is no measured failure rate for automated home-buying in the evidence here. The subsequent results of competing companies give context, but cannot supply that denominator.

Accounting, rivals and the investor case

Zillow recorded about $304 million in inventory write-downs during the third quarter of 2021, largely against homes still unsold at quarter-end.C55C56 A write-down reduces the recorded value to reflect an expected shortfall. The total for the last two quarters was $405 million, whereas Zillow Offers' full-year loss after tax was $630 million.C70C79 Adding those amounts would mix a valuation adjustment with the business's overall result.

Opendoor reported a $1.353 billion loss for 2022 and Offerpad a $148.6 million loss; both were still acquiring and selling homes in mid-2026.C82C85C110C111 Their different businesses and periods do not establish the frequency of failure. Zillow reported revenue of $772 million and a $4 million net loss in the second quarter of 2026.C104

Investors alleged that Zillow's statements about its pricing systems were misleading; Zillow denies wrongdoing and says it will defend the lawsuit.C76C101 In the documented October 5, 2026 status, Jaeger v. Zillow Group remained a certified class action, with trial scheduled for September 13, 2027 and no finding of wrongdoing.C100C109 The Supreme Court declined on October 5 to review class certification, a procedural question rather than a decision that the allegations were true.C105C109

Put the cost beside the price

A cash offer on a home's page asks the owner to judge a price. For the buyer, the test continues after acceptance: it still has to own, prepare and sell the house.C02C08C22 DelPrete's comparison made that second side visible by putting Zillow's acquisition prices beside its listings.C41

If you quote building work or freelance projects, try a version of that comparison this week. Choose twenty completed jobs you won. Write down the agreed price and what you actually spent in consistent units, then set aside additions the original quote was never meant to cover.

Review the work you won

  1. Accepted price

    Record the agreed price for each completed job you chose to review.

  2. Actual cost

    Place the eventual expenditure beside it. Use consistent units.

  3. What changed?

    Separate later additions from the original scope; investigate hours, materials and omissions.

A suggested check of your own records. Retain declined quotes; an overrun alone does not prove why the customer accepted.

A suggested way to review completed work: compare the agreed price with its eventual cost, and investigate differences. DelPrete compared purchase and listing prices; Zillow's own letter discussed acceptance and revised resale expectations.C41C54 Neither establishes why your customer accepted.C41C54From the records · S21 · S03

Use the difference to find a question worth investigating: underestimated hours, materials, a change in scope. Keep records of declined quotes too, while recognizing that you do not know their eventual costs. An expensive job does not by itself show that a customer spotted your pricing error.

For the Tolleson owner, Zillow's purchase completed the sale.C48 For Zillow, it began the wait for another buyer.C48 Leave a column beside the accepted price for the amount that comes after it.

Follow the documents behind each story. Confirmed errors receive dated corrections.

56 facts · 27 sources · Reports checked: 0 · Corrections: 0

Open the sources page Report an error