In Tucson under a baseline economic scenario, the single most impactful policy is the Missing Middle upzone; the model suggests that adopting this policy could result in about 50% more homes than the status quo policy scenario. Parking Reduction is projected to have a slightly more modest impact of about 35% above the status quo; Transit Upzoning has a similarly modest impact of about 30% above the status quo and Fee Reduction has a minimal impact of about 7% above the projected status quo.