11 E Sullivan Ave, Flagstaff, AZ 86004

Opportunities like this simply do not exist in Downtown Flagstaff—especially not in newer construction. This 2021-built duplex offers something incredibly rare: modern design, fee simple ownership, and true flexibility in one of the most supply-constrained locations in Northern Arizona.

Each side features 3 bedrooms, 2.5 bathrooms, and a 2-car garage, with approximately 1,650 sq ft per unit of thoughtfully designed living space. Inside, you’ll find open-concept layouts, high ceilings, abundant natural light, quartz countertops, stainless appliances, and sleek contemporary finishes that rival luxury downtown condos—without the limitations.

Here’s the real differentiator:
A nearly identical building type just blocks away—classified as a condo—has commanded pricing around $1.1M for a single unit. Meanwhile, this property delivers TWO full residences on one lot. That means you’re not just buying a home… you’re buying control, flexibility, and long-term upside.

• Live in one side, rent the other to offset your mortgage

• True investment property with two income streams (~$3,250/unit potential)

• No HOA—unlike nearby condos with monthly fees and restrictions

• Fee simple ownership—you own the land, not just airspace

• Walkable downtown lifestyle—restaurants, shops, trails, NAU, and nightlife just minutes away

• New construction in a historic core—a rarity that cannot easily be replicated

Whether you’re an investor, owner-occupant, or someone looking to secure a foothold in downtown Flagstaff, this property delivers multiple exit strategies: long-term rental, short-term rental (verify), or hybrid living.

This is not just a duplex.
This is a strategic asset in a location where supply is limited and demand never goes out of style.