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Modern Two-Unit Duplex
For Sale
$1,300,000

11 E Sullivan Avenue, Flagstaff, AZ 86001

Residential Income, Flagstaff, AZ

Property Size3,366 SF
Price / SF$386.22
Days on Market517

Property Features for 11 E Sullivan Avenue

General Information

Property type Residential Multi Family
Property subtype Duplex
Pets allowed Dogs OK, Cats OK
Fencing Fenced
Appliances Dishwashers, Refrigerators
Lot features Landscaped
Directions Located on E Sullivan Ave (Alley) Between N San Francisco & N Leroux (N on Leroux to right on Sullivan)
Subdivision 145 - Flagstaff Townsite
Standard status Active
APN 10105001g
Size 3,366 SF

Taxes and HOA fees

Tax Year 2025
Tax Description SUBDIVISION: NORTHEAST ADD BLOCK: 83 BEG SW COR INST 3808517; TH S69-56-41E 142.32'; TH N19-51-44E 20'; TH N69-56-41W 8
Tax Annual Amount 5473
Legal Description SUBDIVISION: NORTHEAST ADD BLOCK: 83 BEG SW COR INST 3808517; TH S69-56-41E 142.32'; TH N19-51-44E 20'; TH N69-56-41W 8

Utilities

Utilities Cable Available
Heating system Natural Gas, Central
Cooling system Central Air, Multi Units

Building Details

Year built 2021
Number of units 2
Roof type Metal, Asphalt
Listing Agency: West USA Realty Flagstaff
Listed By: Jacqueline A Kellogg · License #BR040423000
Added: Apr 17, 2025 Changed: Sep 13 Last Checked: Sep 15 at 3:06AM
MLS# 200318

Copyright © 2026 Northern Arizona Multiple Listing Service. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.

Investment Insights

Based on property information with market context.

This fee-simple duplex contains two full residences within a 3,366-square-foot property completed in 2021. Each unit provides approximately 1,650 square feet with three bedrooms, two-and-a-half bathrooms, and a two-car garage. Open living areas, high ceilings, quartz countertops, stainless appliances, and contemporary finishes define the interiors. Dishwashers and refrigerators are included, along with central natural-gas heating and central air conditioning.

Located at 11 E Sullivan Avenue in Flagstaff, the property offers a downtown setting near restaurants, shops, trails, Northern Arizona University, and nightlife. The residences are separately configured while sharing ownership of the underlying lot, and the property has no HOA. Additional features include a fenced perimeter, asphalt and metal roofing, and cable availability.

Key Highlights

  • Two‑unit duplex totaling 3,366 square feet
  • Built in 2021 with contemporary interior finishes
  • Each unit offers 3 bedrooms, 2.5 bathrooms, and a 2‑car garage

Property Analytics

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Current Use

Duplexes

Suggested Use

Top Pick Big Box & Wholesale Store Electrical Service Storage Facility Locksmith (Bike/Boat/Book/etc) Store Furniture & Home Goods

Score = modeled unmet demand for each use within ~1 mi (higher = bigger opportunity). Zoning and permitted uses should be independently verified with local authorities.

Lease Details

2
Residential units

Location Intelligence

Trade Area within ½ mile

2,881
Businesses Nearby

Demographics for 86001, AZ

37,093
Population
15,364
Households
2.4
Avg Household Size
27
Median Age
55%
College-Educated
96%
High-School Grad
290.4 sq mi
ZIP Area
128
Density / Sq Mi
$62,587
Median Household Income
$24,346
Median Earnings
$1,505
Median Rent
$570,900
Median Home Value
Check the figures for this property Cap Rate, Value Estimation, Potential NOI and more
View Realmo Analytics

Market

Vacancy Rate% for Multifamily in West region

7% 2022
7.8% 2023
8.6% 2024
8.6% 2025
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Frequently Asked Questions

What type of property is this?
Duplex - Built in 2021 with contemporary finishes, individual garages, and central heating and cooling.
Where is this duplex located?
The property is located at 11 E Sullivan Avenue Flagstaff, AZ.
What is the asking price?
The asking price for this property is $1,300,000.
What are key features of this property?
This property features: Two‑unit duplex totaling 3,366 square feet; Built in 2021 with contemporary interior finishes; Each unit offers 3 bedrooms, 2.5 bathrooms, and a 2‑car garage
More about this property
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