New construction there competes directly with resale listings in a way it does not in an older, fully built-out part of Saskatoon, which keeps pricing tied closely to whatever a builder is currently offering nearby. Joel Dyck compares a specific Evergreen listing against both resale and new-build competition before pricing it. Being one of the newest large neighbourhoods also means Evergreen's housing stock spans a wider range of ages and finishes than an older neighbourhood does, so two houses on the same street can price differently based on exactly when each one was built and what the builder included as standard.
A buyer comparing Evergreen against an established neighbourhood is also comparing against a mostly finished streetscape versus one still under construction in places, which affects how a specific block feels day to day even when the houses themselves are similar.
The neighbourhood label only tells you so much; the specific street and build year tell you more. Get your hand-reviewed valuation from Joel Dyck.