Why Renton Neighborhood Price Data Is Often Wrong

Renton neighborhood price data is usually the first number a buyer or a seller looks at, and over the past year we have checked it neighborhood by neighborhood and found it wrong nearly every time. Not slightly wrong. We have found a published neighborhood median that was six months out of date, another calculated from three sales, a third that moved $165,000 in eight days without a single new closing landing, and pages that contradict their own figures two screens apart.

This is not a complaint about any one website. It is a description of how automated neighborhood pages work. They roll a window, they publish whatever sits inside it, and when a small neighborhood produces four sales in a quarter, the page reports those four sales with the same confidence it would report four hundred. Nobody is doing anything wrong. The math is just doing something different from what the reader assumes it is doing.

The Rache Team has spent more than 26 years guiding Renton families toward wealth and homeownership, and this is the single thing we get asked to explain most often. So here is the whole picture: the six specific ways Renton neighborhood price data goes wrong, worked examples from the neighborhoods we cover, and the method we use instead. Every figure below was pulled fresh on September 8, 2026.

Where Renton Neighborhood Price Data Comes From

Almost all of the Renton neighborhood price data you can see for free traces back to the same origin: the regional multiple listing service, reprocessed. A listing portal takes closed sales, assigns each one to a neighborhood using its own drawn outline, filters to a rolling window of the last three, six or twelve months, and computes a median. Then it publishes that median as a headline with a year-over-year percentage attached.

Every step in that chain is a choice, and every choice can distort the answer for a small neighborhood. Which outline the sale falls inside. How long the window is. When the window last refreshed. Whether attached and detached homes are pooled. Whether a sale with an undisclosed price gets counted. In a city of 205 closings a quarter, those choices average out. In a neighborhood of four, they are the entire result.

That is the core of it. Renton neighborhood price data is not a measurement of your neighborhood. It is a calculation about a set of sales that a computer decided belonged to your neighborhood, over a period the reader is rarely shown clearly. Once you know which parts of that sentence can break, the pages become genuinely useful. Read as headlines, they will cost a seller real money.

The Window Problem: Renton Neighborhood Price Data Is Often Months Old

The most common failure is the simplest. The number is old, and the page does not lead with how old.

On September 8, 2026, we pulled six Renton pages within a few minutes of each other. Here is what the reporting windows said:

• Renton Hill: three months ending February 2026, reporting a $939,000 median, up 80.6%
• North Renton: three months ending March 2026, reporting $390,641, down 5.2%
• Earlington Hill: three months ending March 2026, reporting $650,000, up 0.8%
• Renton Highlands: three months ending July 2026, reporting $763,000, up 10.2%
• Renton citywide: three months ending July 2026, reporting $669,665, down 7.6%
• Talbot Hill: no window month printed on the page at all

Renton Hill’s number is five months older than the city’s. A homeowner on Renton Hill who compares their neighborhood to the city, which is the most natural comparison anyone makes, is comparing winter to midsummer and being told nothing about it. The comparison is not a comparison.

North Renton is the sharper case, because it is not lagging, it is stuck. We recorded $390,641 on three sales, window ending March 2026, on August 8. We re-pulled on August 31 and got a byte-for-byte identical figure. We pulled again today and it is unchanged a third time. Meanwhile the recently sold panel underneath that headline has been filling up with 2026 closings the headline has never absorbed. When we worked through those closings for our North Renton price snapshot, the median across the eight most recent sales came out at $595,000. The published headline is $204,359 below the neighborhood’s own recent closings.

Think about what that does to a seller. Price off $390,641 and you have listed a North Renton house roughly $200,000 under what the street is actually producing. That is not a rounding error in Renton neighborhood price data. That is a life-changing amount of money, sitting on a public page, presented as this neighborhood’s current median.

The Sample Problem: When a Median Rests on Three Sales

A median is the middle number. With three sales, the median is the middle sale. One unusual house sets the figure for an entire neighborhood, and the page reports it in the same typeface it uses for a market of hundreds.

Talbot Hill is the cleanest demonstration we have. On August 27, 2026, the page reported a median of $875,000, up 44.6% year over year, calculated across four total sales. Eight days later, on September 4, the same page reported $710,000, down 0.7%, across eleven sales. Nothing dramatic happened in Talbot Hill during that week. The sample grew from four to eleven, and the headline fell $165,000 and reversed direction. Today, September 8, it still reads $710,000, down 0.7%, $334 per square foot, eleven sales.

We want to be straight about something here, because it is the honest version of this article. Our own Talbot Hill price snapshot was published in late August and carries the figures that the page was publishing then. That is what a snapshot is. The lesson is not that one of those numbers was a lie, it is that a neighborhood headline is a photograph with a date on it, and a photograph taken eight days later showed something $165,000 different. Any Renton neighborhood price data you read, including ours, needs its date read alongside it.

Renton Hill runs the same problem from the other direction. Its $939,000 headline, up 80.6%, comes from a February window with two sales in it. Two. And the same page, in a summary block a few inches below, reports a single August sale at $790,000, down 3.1% from list, 54 days on market. One page, two numbers, $149,000 apart, and no explanation offered for which one answers your question.

When the Same Page Disagrees With Itself

This one surprises people the most. A single neighborhood page will frequently publish two different answers to the same question, in two different modules, without flagging the conflict. We have now logged it on four Renton area pages, and we re-verified all four today.

• North Renton: the trend panel reports 7 days on market, the competitiveness panel says homes go pending in around 14 days, and the closings we counted ran a median of 50 days. The trend panel also reports 0.0% of homes sold above list while the competitiveness panel says the average home sells for about 2% above list.
• Earlington Hill: 5 days on market in the headline, 17.5 days in the competitiveness panel, and a real median of 28 days across the closings we recorded.
• Renton Highlands: 20 days on market in the headline, 33.5 days in the competitiveness panel.
• Renton citywide: 18 days on market in the headline, 24 days in the competitiveness panel.

None of these are typos. They are different modules computing over different windows and different home-type filters, presented side by side as though they were one coherent report. If you take away one habit from this article, make it this one: when a page gives you two numbers for the same thing, that page is telling you its precision is lower than it looks.

The Boundary Problem: The Outline Is Not the Neighborhood

Every neighborhood page depends on a drawn polygon deciding which sales count. Those outlines are drawn for national consistency, not local accuracy, and in Renton they routinely disagree with how people here actually use the names.

Talbot Hill’s outline reaches east to SE 170th Pl, well past the core hill above Talbot Road S. The single largest sale in its set, a 3,110 square foot home at $1,150,000, sits on that eastern edge and pulls the whole area’s averages upward. Earlington Hill’s outline runs north to NW 6th St and Taylor Ave NW, which puts two of its seven recorded closings on ground a North Renton seller would also claim.

Tiffany Park is the extreme version, because it has no outline at all. There is no Tiffany Park neighborhood page. The only surface for the name is a page keyed to Tiffany Park Elementary School, and a school-keyed page is a radius search, not a neighborhood. It returned 44 closings over six months, spanning $115,000 to $1,150,000, taking in manufactured homes, a Maple Valley Highway unit, Fairwood new construction and a Renton Highlands condominium. When we checked those 44 against the Tiffany Park Neighborhood Association’s own published street list for our Tiffany Park price snapshot, exactly four of them sat on Tiffany Park streets. Four of forty-four.

A school-name page will never tell you it is a radius search. It just shows you homes and a price range, and the reader supplies the assumption that this is the neighborhood. It is not, and on this one the error was roughly $150,000 in either direction depending on which comps you happened to look at.

Recently Sold Panels Drop Sales Without Telling You

The recently sold panel below the headline feels like the trustworthy part of the page. It shows actual addresses, actual prices, actual dates. Surely that is just a record.

It is not. It is a rolling window, and it drops sales off the bottom as they age, with no indication that anything has been removed. Renton Hill has given us three data points on this:

• August 11, 2026: the panel included a $1,650,000 closing on S 5th Pl, 3,510 square feet, from March. Five 2026 closings were visible in total. Median of the five: $870,000.
• August 31, 2026: that $1,650,000 sale had disappeared. Four remained. Median of the displayed four: $830,000.
• September 8, 2026: a second sale has now dropped, the $925,000 closing on Renton Ave S from March. Three remain. Median of the displayed three: $790,000.
• Not one new sale closed on Renton Hill across those four weeks.

Read that sequence again, because it is the most useful thing in this article. The apparent median of Renton Hill fell $80,000 in four weeks purely because old sales aged off the bottom of a list. If you had checked the panel in August and again in September and concluded the hill was softening, you would have been reading the panel’s memory, not the market. Our Renton Hill price snapshot carries both the displayed set and the fuller set for exactly this reason.

Why Price Per Square Foot Fails Differently in Every Neighborhood

Price per square foot is the number people reach for when they distrust the median, and in Renton it is usually the least reliable figure on the page. Not because the arithmetic is wrong, but because it assumes homes scale with size, and in these neighborhoods they do not.

What makes this worth writing down is that the failure is different in every neighborhood, so there is no citywide rule to memorize:

• Earlington Hill fails at the small end only. The published $354 rate predicted $718,620 on a 2,030 square foot home that closed at $720,000, which is accurate within about $1,400. On a 760 square foot home it fell roughly $171,000 short. Correctable, if you know which direction to correct.
• North Renton is accurate in a narrow middle band and nowhere else. Its published $396 rate predicted $594,000 on a 1,500 square foot home that closed at $595,000. On a 2,321 square foot home it overstated by $324,116, and on a 3,030 square foot home by $439,880, while running about $56,430 short at 1,120 square feet.
• Talbot Hill has no usable structure at all. Six detached closings ran $570, $467, $300, $310, $403 and $370 per square foot with no relationship to size. Two homes 79 square feet apart closed $167 per square foot apart.
• Renton Hill sorts into two bands about $90 apart, and size does not decide which band a house lands in. Condition, period detail, outlook and lot do.
• Tiffany Park ran $321, $331, $368 and $414 per square foot across homes of 2,260, 1,970, 1,600 and 1,810 square feet. The largest home carried the weakest rate per foot, and the smallest carried neither the strongest nor the weakest.

The pattern underneath all five is the same and it is counterintuitive: in most Renton neighborhoods, the smaller the home, the higher the rate per foot. A flat neighborhood rate therefore underprices small homes and overprices large ones, and the crossover point is different on every hill. Applying a headline rate per square foot to your own house is one of the reliable ways to be wrong by six figures.

Automated home value estimates inherit the same problem. On the four Tiffany Park closings we verified, the automated estimates ran 10.2% to 27.7% above what the homes actually sold for. A $589,000 sale carried a $751,998 estimate. A $750,000 sale carried $826,216.

Competitiveness Scores Run on Four Different Clocks

Competitiveness scores look designed for comparison. They are a number from 0 to 100 shown on a shared scale, often stacked in a panel next to nearby neighborhoods. The trouble is that each one is calculated over its own period, and the period is disclosed in small print that changes from page to page.

Here is what the five Renton pages reported on September 8, 2026:

• North Renton: 91, calculated over the last 12 months
• Talbot Hill: 82, calculated over the last 6 months
• Earlington Hill: 72, calculated over the last 9 months
• Renton citywide: 80, calculated over the last 3 months
• Renton Highlands: 74, calculated over the last 3 months
• Renton Hill: no score published at all

North Renton scoring 91 against the Highlands at 74 does not mean North Renton is the more competitive market today. It means a twelve-month average is being displayed next to a three-month average on the same scale. These are comparable only where the periods match, which here is the Highlands against the city and nothing else.

How We Read Renton Neighborhood Price Data for Clients

None of this means the pages are useless. It means they are raw material rather than an answer. This is the sequence we run before we put a number in front of a seller or a buyer, and it is the same sequence whether we are working the Highlands or Renton Hill.

First, find the window date before reading the number. If the page does not print a month, treat the figure as undated and do not compare it to anything. If the month is more than one quarter behind the current date, the headline is history, not a market read.

Second, count the sales. Under roughly ten closings, a median is a description of a handful of houses. We say so out loud in every snapshot we publish rather than quoting the figure clean.

Third, diff against the last pull. This is the step almost nobody does, and it is where the strongest findings come from. A figure that has not moved in a month, like North Renton’s, is itself the story. So is a figure that moved $165,000 in eight days, like Talbot Hill’s. You only see either one by keeping a record.

Fourth, check the edge of the outline. We look at where the counted sales physically sit. If the expensive ones are all clustered on one border, the outline is doing the work, not the neighborhood.

Fifth, go to the closings themselves. List price, closing price, days on market, square footage, address, one row per sale. Then derive the median from those rather than accepting the published one. That single step is what produced the $204,359 North Renton gap and the four-of-forty-four Tiffany Park finding.

Sixth, derive the per-foot band for that specific neighborhood. Never carry a rate from one Renton neighborhood to another, and never apply a neighborhood rate to a home at the far end of the size range.

This is why our neighborhood snapshots read the way they do, and why our comparison pieces such as Earlington against Skyway and the Highlands against Talbot Hill spend as much time on how the figures were built as on the figures.

What to Check Before You Trust Renton Neighborhood Price Data

If you are reading a neighborhood page on your own tonight, this is the short version. Six questions, and you can answer all of them from the page itself in about two minutes.

• What month does the window end? If it is not printed, that is your answer about how much weight to give the number.
• How many sales is the median built on? Three sales and three hundred sales are shown identically. Only one of them is a market.
• Does the page contradict itself? Compare the headline days on market to the competitiveness panel. If they disagree, note how far apart they are.
• Where are the counted sales? Scroll the recently sold list and look at the street names. If several sit somewhere you would not call this neighborhood, the outline is broader than the name.
• Is the panel the whole record? It is not. Assume sales have dropped off, and never treat the displayed set as a complete year.
• Over what period is the competitiveness score calculated? Check it on every page before you rank two neighborhoods against each other.

Do that and you will get more out of Renton neighborhood price data than most people do, and you will stop making the one expensive mistake, which is treating a headline median as an appraisal of your house.

One last thing worth knowing, because it moves real money and almost nobody checks it: the ownership cost side of a Renton home is not uniform either. Tax rates vary meaningfully across the city and the unincorporated ground next to it, and we took that apart line by line in our breakdown of Renton property taxes by neighborhood.

Frequently Asked Questions About Renton Neighborhood Price Data

Find a Home in Renton With Numbers You Can Actually Use

The published pages are a starting point and a genuinely useful one, as long as you read them as what they are: a calculation over a window, about a set of sales a computer assigned to an outline. Check the date, count the sales, look for the page arguing with itself, and never let a headline median stand in for an opinion about your own house.

If you want to see the method applied, our neighborhood snapshots do exactly this, closing by closing, for the Renton Highlands, Skyway West Hill, Earlington, The Landing and Southport and the rest of the areas we cover. Sellers usually want the companion pieces instead, such as pricing and timing a North Renton home or pricing and preparing a Talbot Hill home, which take the same closings and turn them into a listing strategy.

When you want the version for your own address, that is a conversation rather than a web page. Call The Rache Team at (425) 652-6473, email racheb@johnlscott.com, or start a conversation here, and we will bring the closings with us.