Concord's Housing Market: August 2026 in Review

Concord recorded five qualifying single-family closings between August 4 and August 14, 2026. All five sat in the 01742 ZIP. All five had four or five bedrooms. The spread ran from $1,625,000 to $2,000,000 — and that top figure is not a coincidence, it is the ceiling of the search band, which matters for how you read the rest of this post.

Two of those five — 353 Thoreau Street and 53 Spring Road — closed at or below their town assessed value. The other three cleared assessment by between roughly $219,000 and $387,000. That is a wide dispersion for five houses in one town in eleven days, and it is the single most useful thing in the table: in Concord this summer, the assessed value was not a reliable predictor of the sale price in either direction.

August's $497 median price per square foot is the second-highest monthly figure in the entire twelve-month window among months with four or more recorded sales, behind April 2026's $530. It sits well above the window's $450 median. It would be easy to read that as a market accelerating into late summer. It is worth resisting that reading, for a mechanical reason.

The dataset is capped at $2,000,000. That cap does not affect small houses at all — a 2,700-square-foot house would have to sell at $740 per foot to hit it. But it bites hard on large ones: a 5,000-square-foot house cannot enter this dataset at more than $396 per foot. So any month whose sales skew toward smaller houses will automatically print a higher median per square foot. August's median living area was 3,455 square feet against a twelve-month median of 3,725. The two highest per-foot sales of the month — 161 Crescent Road at $627 and 353 Thoreau Street at $562 — were both under 3,500 square feet. Part of August's per-foot strength is real; part of it is arithmetic.

Set the month aside and look at the year. Across the 42 qualifying Concord sales in the window, the median price was $1,740,000 and the mean $1,698,941 — the mean sitting below the median, which is what a hard price ceiling does to a distribution. The lowest qualifying sale was 646 Cambridge Turnpike at $935,000 on July 16, 2026; two sales landed exactly at the $2,000,000 cap.

Split the window at the calendar year and the flatness becomes almost comical. The nine sales dated in 2025 had a median of $1,740,000 at $443 per square foot. The thirty-three sales dated in 2026 had a median of $1,740,000 at $457 per square foot. Identical medians, a three percent move in the per-foot figure, on samples small enough that neither difference should be treated as a trend. Whatever else this segment of Concord did over the last year, it did not reprice.

Price was flat. The relationship between price and the town's own valuation was not neutral at all. Of the 41 Concord sales in the window carrying a recorded tax assessed value, 33 — just over four in five — closed above it. The median sale closed about 14.7% over assessment. The dispersion is enormous: the window contains a sale 26.3% below assessed value and another 48.2% above it.

Now compare that to the Zestimate. Across the same 41 sales, the median closing came in 0.9% below its Zestimate — which is to say, dead on. Concord's automated valuations were tracking this market almost perfectly while the town's assessed values were running roughly a seventh light. For a buyer, that is a concrete, usable asymmetry: in this segment the assessment is a floor-ish reference with a large error bar, and the algorithmic estimate is a much tighter central estimate.

The same capture covered four other towns under the identical filter — Sudbury, Winchester, Reading, and Wilmington — which makes for a genuinely apples-to-apples comparison, since every town is being measured through the same price band, bedroom count, size floor, and lot floor.

Two things stand out. First, Concord and Winchester are effectively priced together at the median — $15,000 apart on houses over $1.7 million — but Concord's buyers are getting roughly 400 more square feet for it, which is why Winchester's per-foot number is $37 higher. Concord's land is cheaper per foot of house than Winchester's; Concord's houses are bigger. Second, the two towns with the largest premiums to assessment are the two cheapest towns on the list, Reading and Wilmington, both above 22%. Assessment lag appears to be widest where prices are lowest and, presumably, rising fastest against valuations set in an earlier cycle.

Sudbury deserves a footnote of its own: it contributed 98 of the 213 sales in the whole capture, more than twice any other town. Concord's 42 is a healthy sample by comparison with Winchester's 25 or Wilmington's 21, but Sudbury is simply transacting far more inventory in this size-and-price band than anyone else in the group.

Our Concord town profile carries a median price of $1,540,000 and $519 per square foot. Neither of those should match the figures above, and it is worth being explicit about why. The profile describes Concord's whole single-family market; this dataset describes a four-bedroom-plus, 2,500-square-foot-plus, quarter-acre-plus slice of it that is capped at $2,000,000. Filtering out small houses lifts the median price above the town-wide figure. Capping at $2,000,000 removes the trophy sales that pull the per-foot number up — the same segment that produced 49 Willard Common's $6,900,000 close at roughly $906 per square foot back in May. Two different lenses, two different numbers, both correct for what they measure.

Three gaps are worth naming rather than papering over. No weekly market pulse was published for August 2026 — the most recent on file is dated May 21, 2026 — so this retrospective has no weekly cadence data to draw on. The most recent RAAM weekly digest on file, dated May 18, 2026, contains no Concord properties, so the scoring engine contributed nothing here. And the $2,000,000 ceiling means we cannot say anything at all about how Concord's top end behaved in August. If the luxury tier moved, this dataset would not show it.

Concord's family-sized single-family market went into August 2026 flat and came out flat. Five sales at a $1,725,000 median against a $1,740,000 twelve-month median is not a move; a $497 per-foot month against a $450 median is mostly a composition effect from a month that happened to trade smaller houses. What is durable, because it holds across 41 sales rather than five, is the gap structure: buyers in this segment paid roughly 15% over the town's assessed values and almost exactly the algorithmic estimate. Price your house off the second number, not the first.