shinnslist · counties · Boulder · Boulder · Flipper parcels
Flipper parcels in Boulder, CO
Bottom line: 101 parcels in Boulder, CO match shinnslist’s Flipper trade: dated homes where updated ones nearby sold for 30%+ more per square foot. Their median years since the last sale is 31. Each one is a fact from the county record, checked by hand on the trade’s top results. Nothing here predicts a sale.
Free beta 101 matches · read October 16, 2026
What this counts
Flipper parcels, in plain words
Single-family homes the county has not re-rated since they were built (1990 or before), with no remodel on its record, held 10 years or more, in neighborhoods where updated homes of a similar size sold for at least 30% more per square foot than this home’s county value, in sales the county qualified as arm’s-length. Widest gap first. Boulder County (its sales of the last two years, and its permits) and Adams County (the qualified sales of July 2022 to June 2024 the county set its values with, at its price for June 30, 2024).
| Flipper matches | 101 |
|---|---|
| Held 20 years or more | 67 |
Source: shinnslist (county records), read October 16, 2026. How the counts are made and graded: How we grade. Nothing here predicts that an owner will sell. These are counts of public county records.
The town
Boulder in the county records
| Parcels in the hunt | 39,252 parcels the county files as homes or residential land in Boulder. |
|---|---|
| Tax bill mailed elsewhere | 16,605 of the 36,700 with a mailing address on file (45%) send the tax bill to an address other than the property. |
| Mailed out of state | 2,600 (7%) send it outside Colorado. |
| Years since the last sale | Median 14 years, from 37,974 parcels with a recorded sale: under 5 years 7,084, 5 to 9 6,974, 10 to 19 9,482, 20 or more 14,434. |
Questions
Flipper parcels in Boulder, answered
How many flipper parcels are in Boulder?
101, read October 16, 2026.
What does the Flipper trade look for?
dated homes where updated ones nearby sold for 30%+ more per square foot. Records: Boulder County Assessor: each building’s year built and effective year, permits, county values and the qualified sales of the last two years (its nightly public files). Adams County Assessor: year built, remodels and values (its data dumps) and its qualified residential sales list for the 2025 values.
How was it checked?
Top 12 checked by hand on Oct 16, 2026 against Boulder County’s live records: year built, size, county value and purchase, 12 of 12; all 65 sales next door found with the same date and price, and the median recomputed from them, 12 of 12. Adams County, Oct 18, 2026, 12 drawn: land and total value on the county’s live value layer 12 of 12, the purchase on its live sales layer 12 of 12, year built and size on its live improvements layer 12 of 12, and the first five sales next door of each, 60 of 60, found as deeds on those dates. 3,266 Adams homes on Oct 18, 2026.
Does a match mean the owner will sell?
No. A match is a recorded fact that fits the trade. Nothing here predicts a sale.