Change has come to downtown Sun Prairie, symbolizing a new era in urban living.  Vintage in vibe and modern in design, Catalyst on Main is where apartment living has been re-envisioned.

Located at the intersection of historic Sun Prairie and right now! Experience the urban revival, where you can step out and enjoy an emerging cosmopolitan area where eclectic meets historic.  Downtown Sun Prairie is growing into one of the most desirable locations on the East Side.  This area is quickly becoming a cultural hub, home to the famous Sweet Corn Fest and constantly alive with unique eateries, mixed with trend setting retail shops, nightlife venues and entertainment that celebrate the revival of the historic downtown ward.

The energy of downtown Sun Prairie starts at Catalyst on Main.   Blending new and old, tasteful and timeless, our studio, one, two, and three bedroom apartments feature thoughtfully-designed, well-constructed open floor plans with impressive kitchens. Compliment your work life with the amazing community amenities including: theater and game room, pool and 24 hour fitness center, grilling stations, dog park and so much more. 

Where sophistication meets inspiration, convenient and elegant, welcome to Catalyst on Main!




  • Keyless Entry for all Apartments
  • Pool with Sun Deck
  • Dog Park
  • Community Room
  • Theater Room
  • Game Room
  • 24/7 Fitness Center
  • Outdoor Grilling Area
  • Dog Wash Stations
  • Package Receiving
  • Smoke Free Property
  • Underground Parking & Storage Included
  • Bike Repair Stations
  • Bike Racks
  • On-Site Management
  • Elevator
  • Planned Community Events
  • Stainless Steel Appliances
  • Granite Countertops
  • Tile Backsplash in Kitchen
  • Luxury Vinyl Plank Flooring
  • Full Size Washer & Dryer
  • French Door Refrigerator (Standard Style in Studio)
  • Gas Range (Standard Style in Studios)
  • 10' Ceilings on First & Top Floors
  • Trash/Recycle Drawer in all Kitchens
  • Kitchen Pantries (most apartments)
  • Private Entrance (most 1st floor apartments)
  • Ceiling Fans w/ Lights and Dimmers in every Bedroom
  • Walk-in Closets
  • Programmable Thermostat