The Saskatchewan REALTORS Association's citywide benchmark of $444,700 is a useful reference point, but a new-build condo or townhome in an active development typically prices against the builder's own list rather than the resale benchmark, since it competes directly with resale listings in a way older neighbourhoods do not.
If a Lawson Heights address matters to you specifically, a resale condo or townhome there is the realistic option, and it will price against what has recently sold in that building or complex rather than against new construction elsewhere in the city.
Joel Dyck can point you to where new construction is actually happening or find a Lawson Heights resale that fits. Get your hand-reviewed valuation from Joel Dyck.