Berthoud
Berthoud runs 5.4 months of single-family supply, the loosest market in the corridor and the only one still loosening. It's the one town where the buyer holds the leverage, and its median is a construction-mix artifact you shouldn't price off, so we won't quote a Berthoud appreciation rate.
Loveland
Loveland is the corridor's outlier: single-family supply at just 2.7 months, the corridor's tightest, and a median that rose about 1.5% year to date while the rest of the corridor softened on price. Here's what the town numbers show, and why the move-up band above the median behaves differently.
Longmont
Longmont single-family runs 2.6 months of supply against Boulder's 4.7, so the corridor is the tighter market, not the looser one. And the median is still down about 4.8% year to date. Both are true at once, and together they change how a move-up trade has to be financed.
Boulder
Boulder's single-family median is $1,325,000, and supply tightened from 6.4 months to 4.7. But that median isn't your price: the $800K–$1.5M move-up band straddles it, and the luxury tail above behaves nothing like the middle. What the town numbers do and don't tell you.